Powered by Deep Web Technologies
Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

CO2 Emissions - Nicaragua  

NLE Websites -- All DOE Office Websites (Extended Search)

Central America, South America, and the Caribbean Nations Nicaragua Graphics CO2 Emissions from Nicaragua Data graphic Data CO2 Emissions from Nicaragua image Per capita CO2...

2

Nicaragua | OpenEI  

Open Energy Info (EERE)

Nicaragua Nicaragua Dataset Summary Description (Abstract): Stand-alone and easy to use geographic toolkit that allows non-GIS users to relate the renewable energy resource (solar and wind) data to other geographic data, such as land use, protected areas, elevation, etc. Source NREL Date Released October 31st, 2005 (9 years ago) Date Updated July 06th, 2012 (2 years ago) Keywords CNE GEF Geospatial Toolkit GIS Nicaragua NREL SUNY SWERA UNEP Data application/zip icon Download Executable Toolkit & Documentation (zip, 42.4 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 2005 License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment Rate this dataset Usefulness of the metadata Average vote Your vote

3

Mercury accumulation of yellowfin tuna, Thunnus albacores, in Seychelles, Indian Ocean.  

E-Print Network (OSTI)

??Ninty three yellowfin tuna, Thunnus albacares, the fork length ranged from 80 to 168 cm were collected from the waters around Seychelles by two longline… (more)

Li, Hsin-hsien

2010-01-01T23:59:59.000Z

4

Team Bug Bag Biogas For Nicaragua  

E-Print Network (OSTI)

Team Bug Bag Biogas For Nicaragua Project Recap The task for Team Bug Bag was to create for under $100 (USD), and be able to produce biogas that could boil water for a thirty minute time period

Demirel, Melik C.

5

Supplement to Cirene: Air—Sea Interactions in the Seychelles—Chagos Thermocline Ridge Region  

Science Conference Proceedings (OSTI)

The Vasco—Cirene field experiment, in January—February 2007, targeted the Seychelles—Chagos thermocline ridge (SCTR) region, with the main purpose of investigating Madden—Julian Oscillation (MJO)-related SST events. The Validation of the ...

J. Vialard; J. P. Duvel; M. J. Mcphaden; P. Bouruet-Aubertot; B. Ward; E. Key; D. Bourras; R. Weller; P. Minnett; A. Weill; C. Cassou; L. Eymard; T. Fristedt; C. Basdevant; Y. Dandonneau; O. Duteil; T. Izumo; C. de Boyer Montégut; S. Masson; F. Marsac; C. Menkes; S. Kennan

2009-01-01T23:59:59.000Z

6

Nicaragua: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Nicaragua: Energy Resources Nicaragua: Energy Resources Jump to: navigation, search Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"390px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":13,"lon":-85,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

7

Cirene: Air—Sea Interactions in the Seychelles—Chagos Thermocline Ridge Region  

Science Conference Proceedings (OSTI)

The Vasco—Cirene program ex-plores how strong air—sea inter-actions promoted by the shallow thermocline and high sea surface temperature in the Seychelles—Chagos thermocline ridge results in marked variability at synoptic, intraseasonal, and ...

J. Vialard; J. P. Duvel; M. J. Mcphaden; P. Bouruet-Aubertot; B. Ward; E. Key; D. Bourras; R. Weller; P. Minnett; A. Weill; C. Cassou; L. Eymard; T. Fristedt; C. Basdevant; Y. Dandonneau; O. Duteil; T. Izumo; C. de Boyer Montégut; S. Masson; F. Marsac; C. Menkes; S. Kennan

2009-01-01T23:59:59.000Z

8

A New Geothermal Anomaly In Nicaragua | Open Energy Information  

Open Energy Info (EERE)

A New Geothermal Anomaly In Nicaragua A New Geothermal Anomaly In Nicaragua Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A New Geothermal Anomaly In Nicaragua Details Activities (0) Areas (0) Regions (0) Abstract: The information acquired during reconnaissance surface exploration in Nicaragua suggests a large geothermal reservoir in the region of Masaya-Nandaime. The exploration programme included geological, geophysical, geochemical, as well as hydrogeological investigations. Integration of the results from various disciplines permitted postulation of a conceptual model of the reservoir and of the thermal regime within the zone immediately above and around the reservoir. The reservoir with a temperature in excess of 200°C is emplaced at a depth between 2 and 4 km

9

A New Geothermal Resource Map Of Nicaragua | Open Energy Information  

Open Energy Info (EERE)

Map Of Nicaragua Map Of Nicaragua Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: A New Geothermal Resource Map Of Nicaragua Details Activities (0) Areas (0) Regions (0) Abstract: A recently completed Geothermal Master Plan Study of Nicaragua assesses the geothermal resource potential of the identified fields and prospects in the country. During the course of the 18-month study, existing data were compiled and evaluated and new exploration work was conducted to determine, for each of ten geothermal resource areas studied: 1) the current level of knowledge about the resource; 2) its exploration or development status; 3) a conceptual model of the geothermal system or systems (incorporating geology, volcanology, geophysics, hydrology, fluid chemistry and geothermometry); 4) estimated recoverable energy reserves; 5)

10

Integrated: Geospatial Toolkit for Nicaragua from NREL | OpenEI  

Open Energy Info (EERE)

Nicaragua from NREL Nicaragua from NREL Dataset Summary Description (Abstract): Stand-alone and easy to use geographic toolkit that allows non-GIS users to relate the renewable energy resource (solar and wind) data to other geographic data, such as land use, protected areas, elevation, etc. (Purpose): The Solar and Wind Energy Resource Assessment (SWERA) Geospatial Toolkit (GsT) is a map-based software application that can be used for decision making and policy analysis in addition to planning for future energy projects. The SWERA application utilizes Geographical Information Systems (GIS) to develop common scenarios to evaluate potential locations for solar or wind energy plants. (Supplemental Information): The zip file contains the geospatial toolkit executable, Getting Started Document, and metadata.

11

Nicaragua-Low-Carbon Energy for Central America: Building a Regional Model  

Open Energy Info (EERE)

Nicaragua-Low-Carbon Energy for Central America: Building a Regional Model Nicaragua-Low-Carbon Energy for Central America: Building a Regional Model Jump to: navigation, search Name Nicaragua-Low-Carbon Energy for Central America: Building a Regional Model Agency/Company /Organization World Watch Institute Sector Energy Focus Area Renewable Energy Topics Background analysis, Implementation, Low emission development planning, Policies/deployment programs Website http://www.worldwatch.org/node Country Nicaragua Central America References Low-Carbon Energy for Central America: Building a Regional Model[1] Overview "This project will design a unified low-carbon development strategy for Central America through the use of renewable energy and energy efficiency maps, followed by technical, economic, and social feasibility studies for

12

Incorporation of plastics and other recyclables into building materials in Nicaragua  

E-Print Network (OSTI)

For three communities in Nicaragua: Bluefields, Little Corn Island, and Corn Island, incentives are needed to motivate residents to not burn their trash and recyclables. There are various methods that could encourage ...

Ohlmacher, Christopher J

2011-01-01T23:59:59.000Z

13

Integrated: Geospatial Toolkit GIS data for Nicaragua from NREL | OpenEI  

Open Energy Info (EERE)

Nicaragua from NREL Nicaragua from NREL Dataset Summary Description (Abstract): Geographic Information Systems (GIS) data intended for use in the Geospatial toolkit or with any GIS software. (Purpose): The Solar and Wind Energy Resource Assessment (SWERA) Geospatial Toolkit (GsT) is a map-based software application that can be used for decision making and policy analysis in addition to planning for future energy projects. The SWERA application utilizes Geographical Information Systems (GIS) to develop common scenarios to evaluate potential locations for solar or wind energy plants. (Supplemental Information): The zip file contains the available geospatial toolkit data and metadata. Each country's data package depends on the data provided by the SWERA partners. ---------------------------------------------------------

14

S Se  

NLE Websites -- All DOE Office Websites (Extended Search)

Se Se er rp pe en nt ti in ne e S St ty yl le e C Co oi il l W Wi in nd di in ng gs s f fo or r B BE EP PC C- -I II I I IR R M Ma ag gn ne et t P Pr ro od du uc ct ti io on n V Viid de eo oc co on nffe er re en nc ce e B Be ettw we ee en n IIH HE EP P a an nd d B BN NL L S Sc ch he ed du ulle ed d ffo or r M Ma ar rc ch h 3 3,, 2 20 00 04 4 o on n B BE EP PC C- -IIII S SC C M Ma ag gn ne ett P Pr ro od du uc cttiio on n.. Presented by Brett Parker/BNL - SMD First SCQ Production Coil Winding 7 0 0 Z (mm) 300 200 100 θ (deg.) 5 0 0 Z (mm) θ (deg.) O Or ri ig gi in na al l D Do ou ub bl le e- -L La ay ye er r B BE EP PC C- -I II I C Co oi il l W Wi in nd di in ng g P Pa at tt te er rn ns s f fo or r S SC CB B a an nd d S SC CQ Q. . The plan had been to wind one coil pole and then stop winding to fill in gaps with G10 before adding new substrate and then continue winding the same pole in the second layer. This was maybe not so bad for SCB where we would have had to stop/start twice but for the four double-layer SCQ we would have had sixteen stop/starts

15

The Momotombo Geothermal Field, Nicaragua: Exploration and development case history study  

DOE Green Energy (OSTI)

This case history discusses the exploration methods used at the Momotombo Geothermal Field in western Nicaragua, and evaluates their contributions to the development of the geothermal field models. Subsequent reservoir engineering has not been synthesized or evaluated. A geothermal exploration program was started in Nicaragua in 1966 to discover and delineate potential geothermal reservoirs in western Nicaragua. Exploration began at the Momotombo field in 1970 using geological, geochemical, and geophysical methods. A regional study of thermal manifestations was undertaken and the area on the southern flank of Volcan Momotombo was chosen for more detailed investigation. Subsequent exploration by various consultants produced a number of geotechnical reports on the geology, geophysics, and geochemistry of the field as well as describing production well drilling. Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. This report presents the description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development. Our principal finding is that data developed at each stage were not sufficiently integrated to guide further work at the field, causing inefficient use of resources.

None

1982-07-01T23:59:59.000Z

16

Midea: Order (2010-SE-0110, 2012-SE-1402, 2012-SE-1404, 2013-SE-1401) |  

NLE Websites -- All DOE Office Websites (Extended Search)

Midea: Order (2010-SE-0110, 2012-SE-1402, 2012-SE-1404, Midea: Order (2010-SE-0110, 2012-SE-1402, 2012-SE-1404, 2013-SE-1401) Midea: Order (2010-SE-0110, 2012-SE-1402, 2012-SE-1404, 2013-SE-1401) November 26, 2012 DOE ordered Midea America Corp., Hefei Hualing Co., Ltd., and China Refrigeration Industry Co., Ltd., to pay a $4,579,949 ($4,562,838 plus one percent interest) civil penalty after finding Midea had manufactured and distributed in commerce in the U.S. a large quantity of basic models HD-l46F, HS-390C, UL-WD145-D, and UL-WD195-D of noncompliant refrigerator-freezers and freezers. The Order adopted a Compromise Agreement, which reflected settlement terms between DOE and Midea. Midea: Order (2010-SE-0110, 2012-SE-1402, 2012-SE-1404, 2013-SE-1401) More Documents & Publications Midea: Proposed Penalty (2010-SE-0110, 2012-SE-1402, 2012-SE-1404)

17

Cs-Se (Cesium - Selenium)  

Science Conference Proceedings (OSTI)

Cs-Se crystallographic data...Cs-Se crystallographic data Phase Composition, wt% Se Pearson symbol Space group (Cs) 0 cI 2 Im m Cs 2 Se 22.9 oP 12 Pnma Cs 3 Se 2 28 â?¦ â?¦ Cs 5 Se 4 32.2 â?¦ â?¦ CsSe 37.3 â?¦ â?¦ Cs 2 Se 3 47 oC 20 Cmc 2 1 Cs 2 Se 5 59.7 oP 28 P 2 1 2 1 2 1 (Se) 100 hP 3 P 3 1 2 1 High-pressure phase Cs 2 Se 22.9 oF 24 Fdd 2...

18

Midea: Proposed Penalty (2010-SE-0110, 2012-SE-1402, 2012-SE-1404) |  

NLE Websites -- All DOE Office Websites (Extended Search)

Proposed Penalty (2010-SE-0110, 2012-SE-1402, 2012-SE-1404) Proposed Penalty (2010-SE-0110, 2012-SE-1402, 2012-SE-1404) Midea: Proposed Penalty (2010-SE-0110, 2012-SE-1402, 2012-SE-1404) November 20, 2012 DOE alleged in a Notice of Proposed Civil Penalty that Midea America Corp., Hefei Hualing Co., Ltd., and China Refrigeration Industry Co., Ltd. manufactured and distributed noncompliant refrigerator-freezers and freezers in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Midea: Proposed Penalty (2010-SE-0110, 2012-SE-1402, 2012-SE-1404)

19

Scholars from northeast Brazil, Costa Rica, southeast Mexico, Nicaragua, Italy, and the United States gathered for a think-tank international week April 18-22, 2011 to examine Latin America's equity-gap challenges using a community engagement  

E-Print Network (OSTI)

Scholars from northeast Brazil, Costa Rica, southeast Mexico, Nicaragua, Italy, and the United. The keynote address--Brazil's Unified Health System May Promote Social Inequality: Paradox or dialectic/northeastern Brazil constitute nadirs of economic and health inequality. The stunting rates among children

Liu, Taosheng

20

Midea: Amended Noncompliance Determination (2010-SE-0110, 2012-SE-1402) |  

NLE Websites -- All DOE Office Websites (Extended Search)

Amended Noncompliance Determination (2010-SE-0110, Amended Noncompliance Determination (2010-SE-0110, 2012-SE-1402) Midea: Amended Noncompliance Determination (2010-SE-0110, 2012-SE-1402) November 26, 2012 DOE issued an Amended Notice of Noncompliance Determination to Midea America Corp., Hefei Hualing Co., Ltd., and China Refrigeration Industry Co., Ltd. finding that basic model HD-146F, a refrigerator-freezer, and basic model HS-390C, a freezer, do not comport with the energy conservation standards. DOE determined the products were noncompliant based on the company's own testing. Midea must immediately notify each person (or company) to whom Midea distributed the noncompliant products that the product does not meet Federal standards. In addition, Midea must provide to DOE documents and records showing the number of units Midea distributed

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Solon SE | Open Energy Information  

Open Energy Info (EERE)

Berlin, Germany Zip D-12489 Sector Solar Product Manufacturer of PV modules and tracking systems, and integrator of solar systems. References Solon SE1 LinkedIn Connections...

22

Precious Coral Fisheries of Hawaii and the U.S. Pacific Islands Introduction  

E-Print Network (OSTI)

,India,Kenya,LesserSunda Islands,Malaysia,NewCaledonia,New Guinea,Nicaragua,Philippines,Samoa. Solomon.Trop.Bot.Gard.(740137-001)from seedcollectedfromcultivatedplantson Kauai,parentplantfromMoorea,French Polynesia Andaman,MalukuIslands,MascareneIslands, NewCaledonia,NewGuinea,NicobarIslands, Philippines,RyukyuIslands,Seychelles, Sri

23

OBSERVING THE OCEAN IN THE 2000'S: A STRATEGY FOR THE ROLE OF ACOUSTIC TOMOGRAPHY  

E-Print Network (OSTI)

,India,Kenya,LesserSunda Islands,Malaysia,NewCaledonia,New Guinea,Nicaragua,Philippines,Samoa. Solomon.Trop.Bot.Gard.(740137-001)from seedcollectedfromcultivatedplantson Kauai,parentplantfromMoorea,French Polynesia Andaman,MalukuIslands,MascareneIslands, NewCaledonia,NewGuinea,NicobarIslands, Philippines,RyukyuIslands,Seychelles, Sri

Dushaw, Brian

24

Anisotropy in CdSe quantum rods  

E-Print Network (OSTI)

in synthesizing monodisperse CdSe nanorods has allowed us toout the phase diagram of the CdSe nanorod solution in order2. Controlled Synthesis of CdSe Nanorods 2.1 Introduction In

Li, Liang-shi

2003-01-01T23:59:59.000Z

25

Seychelles: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

to expand its use of PV systems, but has not done so to date because of relatively low oil prices and a lack of investment capital. A few organisations and companies (Island...

26

THERMODYNAMIC PROPERTIES OF SeS  

E-Print Network (OSTI)

Korenev, et al. used the CdS-CdSe and ZnS-ZnSe systemsto measure. For the CdS-CdSe system, Korenev, et al. wereVapor pressures for CdS and CdSe are better established. A

Huang, M.-D.

2011-01-01T23:59:59.000Z

27

THERMODYNAMIC PROPERTIES OF SeS  

E-Print Network (OSTI)

rights . ;, a 9 U (t,) -iii- THERMODYNAMIC PROPERTIES OF SeSSeS gas. only estimated thermodynamic data are Since groupinterest to study the thermodynamic properties of SeS in

Huang, M.-D.

2011-01-01T23:59:59.000Z

28

Engineered Products: Noncompliance Determination (2012-SE-5401) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Noncompliance Determination (2012-SE-5401) Noncompliance Determination (2012-SE-5401) Engineered Products: Noncompliance Determination (2012-SE-5401) July 26, 2012 DOE issued a Notice of Noncompliance Determination to Engineered Products Company (EPCO) finding that basic model 15701 of metal halide lamp fixture does not comport with the energy conservation standards. DOE determined the product was noncompliant based on the company's own testing. EPCO must immediately notify each person (or company) to whom EPCO distributed the noncompliant product that the product does not meet Federal standards. Engineered Products: Noncompliance Determination (2012-SE-5401) More Documents & Publications Engineered Products: Proposed Penalty (2012-SE-5401) Engineered Products: Order (2012-SE-5401) Teddico: Noncompliance Determination (2012-SE-5409

29

Estimation of selenium (Se) intake from Se in serum, whole blood, toenails, or urine  

SciTech Connect

Because Se content of food varies widely, estimates of intake based on Se status are more accurate than those based on food composition tables. 77 free-living subjects from South Dakota and Wyoming, where the range of Se intake was large, provided blood, toenails, and 24-hour urines. Se intake, measured by chemical analysis of 4-8 days of duplicate-plate food composites from each subject, was estimated on the basis of the Se indices. To predict the natural logarithm of Se intake from serum Se the best fit was provided by : {minus}0.465 + 0.568{asterisk}SSe. Addition of lean body mass (LBM (kg)) and energy intake (EI (MJ)) to the model markedly improved the fit. Models based on Se in blood or urine gave slightly better estimates than those based on toenail Se. Consideration of data in addition to indices of Se status resulted in improved estimates of intake.

Longnecker, M.P.; Taylor, P.R.; Levander, O.A.; Flack, V.; Veillon, C.; McAdam, P.A.; Patterson, K.Y.; Holden, J.; Stampfer, M.J.; Morris, J.S.; Willett, W.C. (Univ. of California, Los Angeles (United States) NCI, Rockville, MD (United States) USDA, Beltsville, MD (United States) Harvard Univ., Boston, MA (United States) Univ. of Missouri, Columbia (United States))

1991-03-11T23:59:59.000Z

30

SeWave | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » SeWave Jump to: navigation, search Name SeWave Place Denmark Zip FO-110 Product Denmark-based 50:50 JV between UK's Wavegen and Faroese electricity company SEV to to design and build a tunnelled demonstration wave power plant in the Faroes Islands. References SeWave[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This article is a stub. You can help OpenEI by expanding it. SeWave is a company located in Denmark . References ↑ "SeWave"

31

ZnSe light?emitting diodes  

Science Conference Proceedings (OSTI)

We report the successful fabrication of ZnSe p?n junction light?emitting diodes in which Li and Cl are used as p?type and n?type dopants

J. Ren; K. A. Bowers; B. Sneed; D. L. Dreifus; J. W. Cook Jr.; J. F. Schetzina; R. M. Kolbas

1990-01-01T23:59:59.000Z

32

Lutron Electronics: Noncompliance Determination (2012-SE-3796...  

NLE Websites -- All DOE Office Websites (Extended Search)

(2012-SE-3796) June 5, 2013 DOE issued a Notice of Noncompliance Determination to Lutron Electronics Co., Inc. finding that a variety of Class A external power supply basic models...

33

Exciton spectroscopy on single CdSe/ZnSe quantum dot photodiodes  

Science Conference Proceedings (OSTI)

We have investigated the properties of neutral and charged excitons in single CdSe/ZnSe QD photodiodes by @m-photoluminescence spectroscopy. By applying a bias voltage, we have been able to control the number of electrons in a single QD by shifting the ... Keywords: CdSe quantum dots, Photodiode, Stark effect

S. Michaelis de Vasconcellos; A. Pawlis; C. Arens; M. Panfilova; A. Zrenner; D. Schikora; K. Lischka

2009-02-01T23:59:59.000Z

34

I2SE | Open Energy Information  

Open Energy Info (EERE)

I2SE I2SE Jump to: navigation, search Name I2SE Place Leipzig, Germany Zip 4103 Sector Efficiency Product IT company providing solutions for energy efficiency and data transmission. Coordinates 51.3452°, 12.38594° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.3452,"lon":12.38594,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

35

Goodman Manufacturing: Noncompliance Determination (2011-SE-4301) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Noncompliance Determination (2011-SE-4301) Noncompliance Determination (2011-SE-4301) Goodman Manufacturing: Noncompliance Determination (2011-SE-4301) October 17, 2011 DOE issued a Notice of Noncompliance Determination to Goodman Manufacturing finding that model CPC180XXX3BXXXAA (CPC180*) of commercial package air conditioner does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing . Goodman must immediately notify each person (or company) to whom Goodmany distributed the noncompliant products that the product does not meet Federal standards. In addition, Goodman must provide to DOE documents and records showing the number of units Goodman distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil

36

Summit Manufacturing: Noncompliance Determination (2010-SE-0303) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Summit Manufacturing: Noncompliance Determination (2010-SE-0303) Summit Manufacturing: Noncompliance Determination (2010-SE-0303) Summit Manufacturing: Noncompliance Determination (2010-SE-0303) May 28, 2010 DOE issued a Notice of Noncompliance Determination to Summit Manufacturing, Inc. finding that 4SHP13LE136P + 15001+CA042A964+TDR basic model, a split-system air conditioning heat pump with a heat pump coil, does not comport with the energy conservation standards. DOE determined the product was noncompliant based on the company's own testing. Summit must immediately notify each person (or company) to whom Summit distributed the noncompliant products that the product does not meet Federal standards. In addition, Summit must provide to DOE documents and records showing the number of units Summit distributed and to whom. The manufacturer and/or

37

Geochemistry of the Yutangba Se deposit in western Hubei, China  

Science Conference Proceedings (OSTI)

In the Se ores and abandoned stone coal pile at the Yutangba Se deposit there ... of Se minerals due to secondary enrichment of selenium in the stone coal ...

38

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

KTH Mechanics SE-100 44 Stockholm, Sweden Activity Report 2006 Contents 1. Introduction 2. 3 Publications and conference presentations during 2006 5. 4 Seminars at Mechanics, KTH 1 #12 of Mechanics, KTH during the year of 2006. More information may be found at the department web site http

Haviland, David

39

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

KTH Mechanics SE-100 44 Stockholm, Sweden Activity Report 2005 Contents 1. Introduction 2. 3 Publications and conference presentations during 2005 5. 4 Seminars at Mechanics, KTH 1 #12 of Mechanics, KTH during the year of 2005. More information may be found at the department web site http

Haviland, David

40

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

KTH Mechanics SE-100 44 Stockholm, Sweden Activity Report 2009 Contents 1. Introduction 2 a short overview of the structure and activities at the depart- ment of Mechanics, KTH during the year courses in mechanics, fluid mechanics and structural mechanics given for students and programmes from

Haviland, David

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Bright CdSe quantum dot inserted in single ZnSe nanowires  

Science Conference Proceedings (OSTI)

We report the evidence of CdSe quantum dot (QD) insertion in single defect-free ZnSe nanowire. These nanowires have been grown by molecular beam epitaxy in vapour-liquid-solid growth mode catalysed with gold particles. We developed a two-step process ... Keywords: µPL, Antibunching, CdSe, Correlation measurement, Micro photoluminescence, Polarisation, Single NW, Single QD, Single nanowire, Single nanowire heterostructures, Single quantum dot, TRPL, Time-resolved photoluminescence, Two-step process, ZnSe

A. Tribu; G. Sallen; T. Aichele; C. Bougerol; R. André; J. P. Poizat; S. Tatarenko; K. Kheng

2009-02-01T23:59:59.000Z

42

Phase transition on CdSe thin films by changing the volume concentration of Se  

Science Conference Proceedings (OSTI)

In this work CdSe thin films were grown by chemical bath deposition (CBD)6 onto glass substrate with approximately 2000 Å thickness. The samples have been prepared by changing the volume concentration of the solution in the range of 5-45 ... Keywords: CdSe, thin films, chemical bath, phase transitions, semiconductors

M. Rubín; J. I. Cortez; H. Juárez; E. Rosendo; T. Díaz; G. García Salgado; I. Villaverde; R. Lozada-Morales; O. Portillo-Moreno; O. Zelaya-Ngel

2007-07-01T23:59:59.000Z

43

2011-SE-1418 Sears_NND  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sears, Roebuck & Co. Sears, Roebuck & Co. (freezers) Issued: June 26, 2012 BEFORE THE U.S. DEPARTMENT OF ENERGY Washington, D.C. 20585 ) ) ) ) ) Case Number: 2011-SE-1418 NOTICE OF NONCOMPLIANCE DETERMINATION Manufacturers and private labelers are prohibited from distributing covered products that do not comply with applicable federal energy conservation standards. 10 C.F.R. § 429.102; 42 U.S.C. § 6302. On September 22, 2011, DOE completed testing of one compact chest freezer, Kenmore-brand model number 255.19702010 ("19702"), privately labeled and distributed in commerce in the U.S. by Sears, Roebuck & Co. ("Sears") and manufactured in China. In December 2011 and January 2012, DOE completed testing oftln·ee additional units of 19702. DOE's testing was

44

Summit Manufacturing: Noncompliance Determination (2010-SE-0303)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

the the Matter of: Summit Manufacturing, Inc. Case Number 2010-SE-0303 NOTICE OF NONCOMPLIANCE DETERMINATION CERTIFICATION Manufacturers of certain covered products are required to certify compliance with the applicable energy conservation standards through submission of a compliance statement and a certification report. 10 CFR § 430.62. See 42 U.S.C. 6296 . The compliance statement is a legal statement by the manufacturer that the information provided in its certification reports is true , accurate and complete, that the basic models certified meet the applicable energy conservation standard, that the energy efficiency information report is the result of testing performed in conformance with the applicable test requirements in 10 CFR part 430, subpart B; and that the manufacturer is

45

Whirlpool: Data Request (2010-SE-0103) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Data Request (2010-SE-0103) Whirlpool: Data Request (2010-SE-0103) April 5, 2010 DOE received information that a model of refrigerator-freezer manufactured by Whirlpool Corporation...

46

SeQuential Pacific Biodiesel LLC | Open Energy Information  

Open Energy Info (EERE)

Pacific Biodiesel LLC Jump to: navigation, search Name SeQuential-Pacific Biodiesel LLC Place Oregon Sector Biofuels Product JV between SeQuential Biofuels, Pacific Biodiesel, and...

47

Temperature dependent band offsets in PbSe/PbEuSe quantum well heterostructures  

Science Conference Proceedings (OSTI)

The band offsets of PbSe/Pb{sub 1-x}Eu{sub x}Se multi-quantum wells grown by molecular beam epitaxy are determined as a function of temperature and europium content using temperature-modulated differential transmission spectroscopy. The confined quantum well states in the valence and conduction bands are analyzed using a k{center_dot}p model with envelope function approximation. From the fit of the experimental data, the normalized conduction band offset is determined as 0.45{+-}0.15 of the band gap difference, independently of Eu content up to 14% and temperature from 20 to 300 K.

Simma, M.; Bauer, G.; Springholz, G. [Institut fuer Halbleiter und Festkoerperphysik, Johannes Kepler Universitaet, A-4040 Linz (Austria)

2012-10-22T23:59:59.000Z

48

LgCOOleS, Se*&,,  

Office of Legacy Management (LM)

; "Ofice Mem ; "Ofice Mem . m *" ' ' *IilCl:t Consists of & " ' / Of LgCOOleS, Se*&,, es * UNITED STATES G-OVERNM NT <;$)~~ 3i;t-j /Lj ' , ~~~' jCjC;O c) TO I LT. :s. Clnr!te, ,;or,~~~,~' , -.,,..:-:-Y"' r~-;i~.L.-Z.:r DATE: uL"C!.,?r 6, 1' ?L9 A meting mj: !1:1d in i:1CG bet,. _ ^ .- ',cel representatives 51 ;.2rshz:i sr.3 the A;.35 to nwotiztc .the prices for producing FY-1: (brow oxise), _1 I%-; (green salt and .?T-12 (he::.-iZluoriic) fcr the sc2or.d 3,uarter of fisc21 1950, (Cctober, Z:ove-r.ber, 2c?Ce.:lxr l?L?). Th-: foll;:~:i;.E xttcndcd the mztin:: "-Tsh-:, -.,q ..__ _id.l - 1;. 2. 9till;Iell

49

Metabolism of selenium (Se) in rats chronically poisoned with D- or L-selenomethionine (SeMet), selenite or selenate  

SciTech Connect

L-SeMet is a potential cancer chemoprevention agent for humans. Little difference was seen in the acute toxicity of L vs. D-SeMet in rats. To study chronic toxicity, weanling male rats were fed purified diets containing 2.5, 5.0 or 10 ppm Se as L-SeMet, D-SeMet, Na/sub 2/SeO/sub 3/ or Na/sub 2/SeO/sub 4/ for 6 weeks. Controls received 0.1 ppm Se as selenite. All rats fed 10 ppm Se died within 29 days. Se fed as D-SeMet was retained in the tissues as strongly as L-SeMet. Rats fed D or L-SeMet deposited large amounts of Se in muscle not reflected by proportionate increases in either plasma or RBC Se. Therefore, attempts to follow increases in Se body burden in individuals supplemented with large doses of L-SeMet by monitoring plasma or whole blood Se levels should be interpreted with caution.

McAdam, P.A.; Levander, O.A.

1986-03-01T23:59:59.000Z

50

Thermoelectric figure of merit of Ag{sub 2}Se with Ag and Se excess  

Science Conference Proceedings (OSTI)

In the temperature range of 100-300 K, the electric ({sigma}) and thermoelectric ({alpha}{sub 0}) properties of Ag{sub 2}Se with an excess of Ag as high as {approx}0.1 at. % and Se as high as {approx}1.0 at. %, respectively, are investigated. From the data on {sigma}, {alpha}{sub 0}, and {chi}{sub tot} (thermal conductivities), the thermoelectric power {alpha}{sub 0}{sup 2}{sigma} and the figure of merit Z are calculated. It is found that {alpha}{sub 0}{sup 2}{sigma} and Z attain the peak values at room temperature and the electron concentration n {approx} 6.5 x 10{sup 18} cm{sup -3}.

Aliev, F. F., E-mail: farzali@physics.ab.az; Jafarov, M. B.; Eminova, V. I. [Azerbaijan National Academy of Sciences, Institute of Physics (Azerbaijan)

2009-08-15T23:59:59.000Z

51

Procedure for separation of Se and determination of Se-79 by liquid scintillation  

Science Conference Proceedings (OSTI)

This report describes the development work and demonstration of a technique for separation of selenium suitable for determination of Se-79 by liquid scintillation counting. The technique has been demonstrated on actual DWPF (Defense Waste Processing Facility) sludge samples which contain very large loads of Sr-90 activity. The separation required a decontamination of selenium from Sr by a factor of over 10{sup 6}, from Co and Cs by factor of 10{sup 4}, and from Tc-99 by a factor of 100, while still maintaining a selenium recovery of about 50%. Using this technique the author has determined Se-79 in five actual DWPF samples with a precision of about 70% relative standard deviation. This separation has not been demonstrated on actual DWPF samples which have the largest Cs-137 loads. He does not anticipate that these untested samples will present a difficult problem.

Dewberry, R.A.

1991-08-11T23:59:59.000Z

52

Software: SE2-ANL - Nuclear Engineering Division (Argonne)  

NLE Websites -- All DOE Office Websites (Extended Search)

OutLoud on Nuclear Energy Argonne Energy Showcase 2012 Software SE2-ANL (Thermal-Hydraulic Codes) Bookmark and Share Standard Code Description SE2-ANL is a modified version of...

53

GE Lighting Solutions: Order (2013-SE-4901) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Order (2013-SE-4901) GE Lighting Solutions: Order (2013-SE-4901) April 4, 2013 DOE ordered General Electric Lighting Solutions, LLC to pay a 5,360 civil penalty after finding GE...

54

Deformation potentials of CdSe quantum dots  

E-Print Network (OSTI)

a v (in eV) of zinc-blende CdSe. SEPM PW PW+d a a LAPW Expt>4: The size dependence of — a of C B M state of CdSe QDs. vDeformation potentials of CdSe quantum dots Jingbo L i and L

Li, Jingbo; Wang, Lin-Wang

2004-01-01T23:59:59.000Z

55

Local Structure of CuIn3Se5  

DOE Green Energy (OSTI)

The results of a detailed EXAFS study of the Cu-K, In-K, and Se-K edges CuIn3Se5 are reported. The Cu and In first nearest neighbor local structures were found to be almost identical to those in CuInSe2.

Chang, C. H.; Wei, S. H.; Leyarovska, N.; Johnson, J. W.; Zhang, S. B.; Stanbery, B. J.; Anderson, T. J.

2000-01-01T23:59:59.000Z

56

Leader Electronics: Data Request (2010-SE-2301) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Data Request (2010-SE-2301) Data Request (2010-SE-2301) Leader Electronics: Data Request (2010-SE-2301) August 19, 2010 DOE requested test data from Leader Electronics Inc. for various models of external power supplies after Leader Electronics certified energy values that did not meet federal energy conservation standards. Leader Electronics was required to provide test data, including complete test reports, for external power supply models "NU50-2093400-I3(NU50-21090-300F)" and "MU03-F050040-AI(MU03-F1050-AKOS)." Leader Electronics: Data Request (2010-SE-2301) More Documents & Publications Leader Electronics: Noncompliance Determination (2010-SE-2301) Leader Electronics: Notice of Allowance (2010-SE-2301) Lutron Electronics: Noncompliance Determination (2012-SE-3796

57

Hicon: Proposed Penalty (2013-SE-1426) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Hicon: Proposed Penalty (2013-SE-1426) Hicon: Proposed Penalty (2013-SE-1426) Hicon: Proposed Penalty (2013-SE-1426) July 8, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Ningbo Hicon International Industry Company, Ltd. manufactured and distributed noncompliant freezer basic model BD-200 in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Hicon: Proposed Penalty (2013-SE-1426) More Documents & Publications Hicon: Noncompliance Determination (2013-SE-1426) Hicon: Order (2013-SE-1426) Haier: Proposed Penalty

58

Philips: Proposed Penalty (2012-SE-2605) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Proposed Penalty (2012-SE-2605) Proposed Penalty (2012-SE-2605) Philips: Proposed Penalty (2012-SE-2605) November 29, 2012 DOE alleged in a Notice of Proposed Civil Penalty that Philips Lighting Electronics N. A. manufactured and distributed noncompliant fluorescent lamp ballast basic model VEL-1S40-SC in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Philips: Proposed Penalty (2012-SE-2605) More Documents & Publications Philips: Noncompliance Determination (2012-SE-2605) Philips: Order (2012-SE-2605)

59

CNA: Proposed Penalty (2013-SE-1430) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CNA: Proposed Penalty (2013-SE-1430) CNA: Proposed Penalty (2013-SE-1430) CNA: Proposed Penalty (2013-SE-1430) September 24, 2013 DOE alleged in a Notice of Proposed Civil Penalty that CNA International, Inc., d/b/a MC Appliance Corp. privately labeled and distributed noncompliant freezer Magic Chef model number HMCF7W in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. CNA: Proposed Penalty (2013-SE-1430) More Documents & Publications CNA: Noncompliance Determination (2013-SE-1430) CNA: Compromise Agreement (2013-SE-1430)

60

Simkar: Proposed Penalty (2012-SE-5408) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Simkar: Proposed Penalty (2012-SE-5408) Simkar: Proposed Penalty (2012-SE-5408) Simkar: Proposed Penalty (2012-SE-5408) November 21, 2012 DOE alleged in a Notice of Proposed Civil Penalty that Simkar Corporation manufactured and distributed noncompliant probe-start and pulse-start basic model metal halide lamp fixtures in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Simkar: Proposed Penalty (2012-SE-5408) More Documents & Publications Simkar: Noncompliance Determination (2012-SE-5408) Simkar: Order (2012-SE-5408)

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Central Moloney: Proposed Penalty (2013-SE-4702) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Proposed Penalty (2013-SE-4702) Proposed Penalty (2013-SE-4702) Central Moloney: Proposed Penalty (2013-SE-4702) March 20, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Central Moloney, Inc. manufactured and distributed a variety of noncompliant liquid-immersed distribution transformers in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Central Moloney: Proposed Penalty (2013-SE-4702) More Documents & Publications Central Moloney: Noncompliance Determination (2013-SE-4702) Central Moloney: Order (2013-SE-4702)

62

Se-based Positive Electrode Material for Rechargeable Battery ...  

Science Conference Proceedings (OSTI)

This series of matrials could be used in both Li and Na battery system. It is found that Se-containing materials showed better electrochemical performace in terms

63

ASKO Appliances: Compliance Determination (2010-SE-0601) | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(2010-SE-0601) Septemer 8, 2010 DOE tested four units of the model D5122XXLB dishwasher manufactured by ASKO Appliances, Inc. Applying statistical analysis, DOE found that...

64

Lutron Electronics: Proposed Penalty (2012-SE-3796) | Department...  

NLE Websites -- All DOE Office Websites (Extended Search)

(2012-SE-3796) May 2, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Lutron Electronics Co., Inc. manufactured and distributed noncompliant class A external power...

65

APS/DPP 111207-se 1 University Fusion Association Meeting  

E-Print Network (OSTI)

greater interaction between the Office of Science researchers and the NNSA scientists and provide greater has been included in the NNSA program. #12;APS/DPP 111207-se 6 FY2008 CR · The Department is operating Interest May 2007 SC/NNSA Joint Program in HEDLP #12;APS/DPP 111207-se 12 HEDP-Research Topics & Related

66

Mackle Company: Proposed Penalty (2010-SE-0106) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Mackle Company: Proposed Penalty (2010-SE-0106) Mackle Company: Proposed Penalty (2010-SE-0106) Mackle Company: Proposed Penalty (2010-SE-0106) June 14, 2010 DOE alleged in a Notice of Proposed Civil Penalty that The Mackle Company, Inc., sold and/or distributed noncompliant refrigerators, refrigerator-freezers, and freezers in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. The Mackle Company: Proposed Penalty (2010-SE-0106) More Documents & Publications Mackle Company: Proposed Penalty (2011-CE-2102) Mackle Company: Order (2010-SE-0106)

67

Neptun Light: Proposed Penalty (2012-SE-3504) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Neptun Light: Proposed Penalty (2012-SE-3504) Neptun Light: Proposed Penalty (2012-SE-3504) Neptun Light: Proposed Penalty (2012-SE-3504) May 2, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Neptun Light, Inc. failed to certify a variety of medium base compact fluorescent lamps as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Neptun Light: Proposed Penalty (2012-SE-3504) More Documents & Publications Neptun Light: Order (2012-SE-3504) Excellence Opto: Proposed Penalty (2013-CE-49002)

68

Teddico: Proposed Penalty (2012-SE-5409) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Proposed Penalty (2012-SE-5409) Proposed Penalty (2012-SE-5409) Teddico: Proposed Penalty (2012-SE-5409) November 21, 2012 DOE alleged in a Notice of Proposed Civil Penalty that The Electrical Design, Development and Implementation Company d/b/a Teddico manufactured and distributed noncompliant metal halide lamp fixtures with magnetic probe-start ballasts in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Teddico: Proposed Penalty (2012-SE-5409) More Documents & Publications Teddico: Noncompliance Determination (2012-SE-5409)

69

Mackle Company: Proposed Penalty (2010-SE-0106) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Mackle Company: Proposed Penalty (2010-SE-0106) Mackle Company: Proposed Penalty (2010-SE-0106) Mackle Company: Proposed Penalty (2010-SE-0106) June 14, 2010 DOE alleged in a Notice of Proposed Civil Penalty that The Mackle Company, Inc., sold and/or distributed noncompliant refrigerators, refrigerator-freezers, and freezers in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. The Mackle Company: Proposed Penalty (2010-SE-0106) More Documents & Publications Mackle Company: Proposed Penalty (2011-CE-2102) Mackle Company: Order (2010-SE-0106)

70

Goodman Manufacturing: Proposed Penalty (2011-SE-4301) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Proposed Penalty (2011-SE-4301) Proposed Penalty (2011-SE-4301) Goodman Manufacturing: Proposed Penalty (2011-SE-4301) December 2, 2011 DOE alleged in a Notice of Proposed Civil Penalty that Goodman Manufacturing manufactured and distributed noncompliant basic model CPC180* commercial package air conditioners in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Goodman Manufacturing: Proposed Penalty (2011-SE-4301) More Documents & Publications Goodman Manufacturing: Noncompliance Determination (2011-SE-4301)

71

Pax Global: Noncompliance Determination (2013-SE-1413) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pax Global: Noncompliance Determination (2013-SE-1413) Pax Global: Noncompliance Determination (2013-SE-1413) Pax Global: Noncompliance Determination (2013-SE-1413) April 2, 2013 DOE issued a Notice of Noncompliance Determination to Pax Global, Inc. finding that freezer basic models (1) Crosley CCF51; (2) Crosley CCF69; (3) Crosley CCF106; and (4) Daewoo DCF-106W do not comport with the energy conservation standards. DOE determined the products were noncompliant based on DOE testing. Pax Global must immediately notify each person (or company) to whom Pax Global distributed the noncompliant products that the products do not meet Federal standards. Pax Global: Noncompliance Determination (2013-SE-1413) More Documents & Publications Pax Global: Compromise Agreement (2013-SE-1413) Daewoo: Proposed Penalty (2010-CE-0410)

72

Thermoelectric properties of n-type PbSe revisited  

Science Conference Proceedings (OSTI)

It was recently predicted \\cite{parker} and experimentally confirmed \\cite{sny_PbSe} that $p$-type PbSe would be a good thermoelectric material. Recent experimental work \\cite{pers2} now suggests that $n$-type PbSe can also be a good thermoelectric material. We now re-examine the thermoelectric performance of PbSe with a revised approximation which improves band gap accuracy. We now find that $n$-type PbSe {\\it can} be a high performance material, with thermopowers as high in magnitude as 250 $\\mu$V/K at 1000 K and 300 $\\mu$V/K at 800 K. Optimal 1000 K $n$-type doping ranges are between 2 $\\times 10^{19}$cm$^{-3}$ and 8 $\\times 10^{19}$cm$^{-3}$, while at 800 K the corresponding range is from 7 $\\times$10$^{18}$ to 4 $\\times $10$^{19}$ cm$^{-3}$.

Parker, David S [ORNL; Singh, David J [ORNL; Ren, Zhifeng [Boston College, Chestnut Hill; Zhang, Qinyong [Xihua University

2012-01-01T23:59:59.000Z

73

Enhanced photoluminescence from free-standing microstructures fabricated on MBE grown PbSe-PbSrSe MQW structure  

Science Conference Proceedings (OSTI)

Fabrication of microrods from multi-quantum well (MQW) PbSe-PbSrSe structure grown in molecular beam epitaxy (MBE) followed by its morphological as well as optical characterizations are described. Pulsed PL intensity is increased by 64 times per unit ... Keywords: MBE, MQW microrod, MQW microtube, Photoluminescence, SEM

S. Mukherjee; S. Jain; F. Zhao; J. P. Kar; D. Li; Z. Shi

2008-04-01T23:59:59.000Z

74

Midea: Noncompliance Determination (2010-SE-0110) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

0-SE-0110) 0-SE-0110) Midea: Noncompliance Determination (2010-SE-0110) October 5, 2011 DOE issued a Notice of Noncompliance Determination to Midea America Corporation finding that basic model number HS-390C, a chest freezer, does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Midea must immediately notify each person (or company) to whom Midea distributed the noncompliant product that the product does not meet Federal standards. In addition, Midea must provide to DOE documents and records showing the number of units Midea distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties. Midea: Noncompliance Determination (2010-SE-0110) More Documents & Publications

75

Fuzhou Sunlight Lighting: Notice of Allowance (2010-SE-1402) | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fuzhou Sunlight Lighting: Notice of Allowance (2010-SE-1402) Fuzhou Sunlight Lighting: Notice of Allowance (2010-SE-1402) Fuzhou Sunlight Lighting: Notice of Allowance (2010-SE-1402) August 10, 2010 DOE issued a Notice of Allowance to Resume Distribution, authorizing Fuzhou Sunlight Lighting Electrical Appliance Company, Ltd. to resume distribution of eleven models of lamps. DOE had previously found certain Fuzhou products did not comport with the applicable energy conservation standards based on Fuzhou's testing. After determining that the original testing was not performed in accordance with DOE procedures, Fuzhou Sunlight provided new test data to DOE demonstrating that eleven models meet the applicable energy conservation standard when tested in accordance with DOE test procedures. Fuzhou Sunlight Lighting: Notice of Allowance (2010-SE-1402)

76

Grainger: Noncompliance Determination (2013-SE-1411) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Noncompliance Determination (2013-SE-1411) Noncompliance Determination (2013-SE-1411) Grainger: Noncompliance Determination (2013-SE-1411) April 29, 2013 DOE issued a Notice of Noncompliance Determination to Grainger International Inc. finding that freezer models, privately labeled as the Dayton 5NTX4, the Dayton 5NTX5, and the Dayton 5NTX6 do not comport with the energy conservation standards. Grainger must immediately notify each person (or company) to whom Grainger distributed the noncompliant products that the products do not meet Federal standards. In addition, Grainger must provide to DOE documents and records showing the number of units Grainger distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties. Grainger: Noncompliance Determination (2013-SE-1411)

77

Lattice vibrations of pure and doped GaSe  

Science Conference Proceedings (OSTI)

The Bridgman method is used to grow especially undoped and doped single crystals of GaSe. Composition and impurity content of the grown crystals were determined using X-ray fluorescence (XRF) method. X-ray diffraction, Raman scattering, photoluminescence (PL), and IR transmission measurements were performed at room temperature. The long wavelength lattice vibrations of four modifications of GaSe were described in the framework of modified one-layer linear-chain model which also takes into consideration the interaction of the selenium (Se) atom with the second nearest neighbor gallium (Ga) atom in the same layer. The existence of an eight-layer modification of GaSe is suggested and the vibrational frequencies of this modification are explained in the framework of a lattice dynamical model considered in the present work. Frequencies and the type of vibrations (gap, local, or resonance) for the impurity atoms were calculated and compared with the experimental results.

Allakhverdiev, K. [Materials Institute, Marmara Research Center, TUBITAK, Gebze/Kocaeli 41470 (Turkey) and Institute of Physics, Azerbaijan National Academy of Sciences, Baku AZ1143 (Azerbaijan)]. E-mail: kerim.allahverdi@mam.gov.tr; Baykara, T. [Materials Institute, Marmara Research Center, TUBITAK, Gebze/Kocaeli 41470 (Turkey); Ellialtioglu, S. [Department of Physics, Middle East Technical University, Ankara 06531 (Turkey); Hashimzade, F. [Institute of Physics, Azerbaijan National Academy of Sciences, Baku AZ1143 (Azerbaijan); Huseinova, D. [Institute of Physics, Azerbaijan National Academy of Sciences, Baku AZ1143 (Azerbaijan); Kawamura, K. [Institute of Materials Science, University of Tsukuba 305-8573 (Japan); Kaya, A.A. [Materials Institute, Marmara Research Center, TUBITAK, Gebze/Kocaeli 41470 (Turkey); Kulibekov, A.M. [Department of Physics, Mugla University, Mugla 48000 (Turkey); Onari, S. [Institute of Materials Science, University of Tsukuba 305-8573 (Japan)

2006-04-13T23:59:59.000Z

78

GE Lighting Solutions: Proposed Penalty (2013-SE-4901) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

GE Lighting Solutions: Proposed Penalty (2013-SE-4901) GE Lighting Solutions: Proposed Penalty (2013-SE-4901) GE Lighting Solutions: Proposed Penalty (2013-SE-4901) March 5, 2013 DOE alleged in a Notice of Proposed Civil Penalty that General Electric Lighting Solutions manufactured and distributed noncompliant traffic signal modules in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. GE Lighting Solutions: Proposed Penalty (2013-SE-4901) More Documents & Publications Act One: NPCP (2013-CE-49001) Excellence Opto: Proposed Penalty (2013-CE-49002)

79

Thermo Products: Proposed Penalty (2011-SE-1603) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Thermo Products: Proposed Penalty (2011-SE-1603) Thermo Products: Proposed Penalty (2011-SE-1603) Thermo Products: Proposed Penalty (2011-SE-1603) September 28, 2011 DOE issued this Notice of Proposed Civil Penalty Notice to Thermo Products, LLC, alleging that the company certified several models of residential air conditioning heat pumps without performing testing required by DOE regulations. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Thermo Products: Proposed Penalty (2011-SE-1603) More Documents & Publications

80

GE Lighting Solutions: Proposed Penalty (2013-SE-4901) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Proposed Penalty (2013-SE-4901) Proposed Penalty (2013-SE-4901) GE Lighting Solutions: Proposed Penalty (2013-SE-4901) March 5, 2013 DOE alleged in a Notice of Proposed Civil Penalty that General Electric Lighting Solutions manufactured and distributed noncompliant traffic signal modules in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. GE Lighting Solutions: Proposed Penalty (2013-SE-4901) More Documents & Publications Watermark: Proposed Penalty (2011-SW-2908) Act One: NPCP (2013-CE-49001)

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Engineered Products: Proposed Penalty (2012-SE-5401) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Proposed Penalty (2012-SE-5401) Proposed Penalty (2012-SE-5401) Engineered Products: Proposed Penalty (2012-SE-5401) July 19, 2012 DOE alleged in a Notice of Proposed Civil Penalty that Engineered Products Company manufactured/privately-labeled and distributed a number of units of noncompliant basic model 15701, a metal halide lamp fixture with a magnetic probe-start ballast in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Engineered Products: Proposed Penalty (2012-SE-5401) More Documents & Publications

82

Hydac: Noncompliance Determination (2012-SE-4107) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Noncompliance Determination (2012-SE-4107) Noncompliance Determination (2012-SE-4107) Hydac: Noncompliance Determination (2012-SE-4107) November 19, 2012 DOE issued a Notice of Noncompliance Determination to Hydac Technology Corporation finding that a variety of electric motor basic models do not comport with the energy conservation standards. DOE determined the products were noncompliant based on the company's own testing. Hydac must immediately notify each person (or company) to whom Hydac distributed the noncompliant products that the products do not meet Federal standards. In addition, Hydac must provide to DOE documents and records showing the number of units Hydac distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties. Hydac: Noncompliance Determination (2012-SE-4107)

83

Haier: Noncompliance Determination (2011-SE-1428) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Haier: Noncompliance Determination (2011-SE-1428) Haier: Noncompliance Determination (2011-SE-1428) Haier: Noncompliance Determination (2011-SE-1428) April 23, 2013 DOE issued a Notice of Noncompliance Determination to Haier America Trading, LLC finding that Haier model HMCM106EA, a freezer, does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Haier must immediately notify each person (or company) to whom Haier distributed the noncompliant products that the product does not meet Federal standards. In addition, Haier must provide to DOE documents and records showing the number of units Haier distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties. Haier: Noncompliance Determination (2011-SE-1428)

84

ET Industries: Noncompliance Determination (2012-SE-2902) | Department of  

NLE Websites -- All DOE Office Websites (Extended Search)

Noncompliance Determination (2012-SE-2902) Noncompliance Determination (2012-SE-2902) ET Industries: Noncompliance Determination (2012-SE-2902) May 24, 2013 DOE issued a Notice of Noncompliance Determination to ET Industries, Inc. finding that showerhead basic model TH-1 does not comport with the water conservation standards. DOE determined the product was noncompliant based on DOE testing. ET Industries must immediately notify each person (or company) to whom ET Industries distributed the noncompliant products that the product does not meet Federal standards. In addition, ET Industries must provide to DOE documents and records showing the number of units ET Industries distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties. ET Industries: Noncompliance Determination (2012-SE-2902)

85

Royal Pacific: Proposed Penalty (2013-SE-33004) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Proposed Penalty (2013-SE-33004) Proposed Penalty (2013-SE-33004) Royal Pacific: Proposed Penalty (2013-SE-33004) July 5, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Royal Pacific, Ltd. failed to certify ceiling fans, ceiling fan light kits, medium base compact fluorescent lamps, and illuminated exit signs as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Royal Pacific: Proposed Penalty (2013-SE-33004) More Documents & Publications

86

Aspen: Noncompliance Determination (2010-SE-0305) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

0-SE-0305) 0-SE-0305) Aspen: Noncompliance Determination (2010-SE-0305) May 28, 2010 DOE issued a Notice of Noncompliance Determination to Aspen Manufacturing finding that a variety of basic models of split-system air conditioning heat pumps do not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Aspen must immediately notify each person (or company) to whom Aspen distributed the noncompliant products that the product does not meet Federal standards. In addition, Aspen must provide to DOE documents and records showing the number of units Aspen distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties. Aspen: Noncompliance Determination (2010-SE-0305)

87

Fuzhou Sunlight Lighting: Notice of Allowance (2010-SE-1402) | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sunlight Lighting: Notice of Allowance (2010-SE-1402) Sunlight Lighting: Notice of Allowance (2010-SE-1402) Fuzhou Sunlight Lighting: Notice of Allowance (2010-SE-1402) October 8, 2010 DOE issued a Notice of Allowance to Resume Distribution, authorizing Fuzhou Sunlight Lighting Electrical Appliance Company, Ltd. to resume distribution of one model of lamp. DOE had previously found certain Fuzhou products did not comport with the applicable energy conservation standards based on Fuzhou's testing. After determining that the original testing was not performed in accordance with DOE procedures, Fuzhou Sunlight provided new test data to DOE demonstrating that one model meets the applicable energy conservation standard when tested in accordance with DOE test procedures. Fuzhou Sunlight Lighting: Notice of Allowance (2010-SE-1402)

88

Campus Security Report 1 Campus seCurity  

E-Print Network (OSTI)

Campus Security Report 1 Campus seCurity and Fire saFety report UC Santa Cruz 2010 #12;Campus Security Report 2 UC Santa Cruz Geography ........................................................ 8 Security and Access to Campus Buildings and Grounds ........................................ 8

Wilmers, Chris

89

Integrated: Geospatial Toolkit for Nicaragua from NREL  

Open Energy Info (EERE)

and easy to use geographic toolkit that allows non-GIS users to relate the renewable energy resource (solar and wind) data to other geographic data, such as land use, protected...

90

Fuel Ethanol (Renewable) Imports from Nicaragua  

U.S. Energy Information Administration (EIA)

-No Data Reported; --= Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Notes: *Countries listed under ...

91

First-principles study of Se-intercalated graphite  

DOE Green Energy (OSTI)

Se-intercalated graphite compounds (Se-GICs) are considered as promising candidates for room-temperature thermoelectric cooling devices. Here the authors analyze the crystallographic structure and electronic properties of these materials within the framework of density-functional theory. First, the Adaptive-Coordinate Real-space Electronic Structure (ACRES) code is used to determine the stable structure of a representative stage-2 Se-GIC by relaxing atomic positions. The stable configuration is found to be a pendant-type structure, in which each selenium is bonded covalently to two atoms within the same carbon layer, causing a local distortion of the in-plane conjugation of the graphite. Then, they use the full potential linearized augmented plane wave (FP-LAPW) method to calculate the electronic band structure of the material and discuss its properties. Near the Fermi energy E{sub F}, there are wide bands originating from the host graphitic electronic structure and a few very narrow bands mainly of Se 4p character. The latter bands contribute to high peaks in the density of states close to E{sub F}. They show that this feature, although typical of many good thermoelectrics, does not necessarily imply high thermopower in the case of Se-GICs.

BARTKOWIAK,M.; MODINE,NORMAND A.; SOFO,J.O.; MAHAN,G.D.

2000-05-11T23:59:59.000Z

92

Leader Electronics: Noncompliance Determination (2010-SE-2301) | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Noncompliance Determination (2010-SE-2301) Noncompliance Determination (2010-SE-2301) Leader Electronics: Noncompliance Determination (2010-SE-2301) August 24, 2010 DOE issued a Notice of Noncompliance Determination to Leader Electronics, Inc. finding that "NU50-2093400-I3(NU50-21090-300F)" and "MU03-F050040-A1(MU03-Fl050-AKOS)" of external power supplies do not comport with the energy conservation standards. DOE determined the product was noncompliant based on the company's own testing. Leader Electronics must immediately notify each person (or company) to whom Leader Electronics distributed the noncompliant products that the products do not meet Federal standards. In addition, Leader Electronics must provide to DOE documents and records showing the number of units Leader Electronics

93

Central Moloney: Noncompliance Determination (2013-SE-4702) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Central Moloney: Noncompliance Determination (2013-SE-4702) Central Moloney: Noncompliance Determination (2013-SE-4702) Central Moloney: Noncompliance Determination (2013-SE-4702) March 11, 2013 DOE issued a Notice of Noncompliance Determination to Central Moloney, Inc. finding that liquid-immersed distribution transformer basic models 30300150 and 32500095 do not comport with the energy conservation standards. DOE determined the products were noncompliant based on the company's own testing. Central Moloney must immediately notify each person (or company) to whom Central Moloney distributed the noncompliant products that the products do not meet Federal standards. In addition, Central Moloney must provide to DOE documents and records showing the number of units Central Moloney distributed and to whom. The manufacturer and/or private labeler

94

Hicon: Noncompliance Determination (2013-SE-1426) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hicon: Noncompliance Determination (2013-SE-1426) Hicon: Noncompliance Determination (2013-SE-1426) Hicon: Noncompliance Determination (2013-SE-1426) February 14, 2013 DOE issued a Notice of Noncompliance Determination to Ningbo Hicon International Industry Company, Ltd. finding that model number BD-200, a compact chest freezer, does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Hiicon must immediately notify each person (or company) to whom Hicon distributed the noncompliant products that the product does not meet Federal standards. In addition, Hicon must provide to DOE documents and records showing the number of units Hicon distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil

95

Universal: Noncompliance Determination (2013-SE-26004) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Universal: Noncompliance Determination (2013-SE-26004) Universal: Noncompliance Determination (2013-SE-26004) Universal: Noncompliance Determination (2013-SE-26004) September 6, 2013 DOE issued a Notice of Noncompliance Determination to Universal Lighting Technologies, Inc. finding that fluorescent lamp ballast model B140R277HP does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Universal must immediately notify each person (or company) to whom Universal distributed the noncompliant products that the product does not meet Federal standards. In addition, Universal must provide to DOE documents and records showing the number of units Universal distributed and to whom. The manufacturer and/or private labeler of the product may be subject to

96

SeQuential Biofuels LLC | Open Energy Information  

Open Energy Info (EERE)

SeQuential Biofuels LLC SeQuential Biofuels LLC Jump to: navigation, search Name SeQuential Biofuels LLC Place Portland, Oregon Zip 97231 Sector Biofuels Product A biofuels marketing and distribution company with several offices in Oregon. Coordinates 45.511795°, -122.675629° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.511795,"lon":-122.675629,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

97

Fuzhou Sunlight: Noncompliance Determination (2010-SE-1402) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sunlight: Noncompliance Determination (2010-SE-1402) Sunlight: Noncompliance Determination (2010-SE-1402) Fuzhou Sunlight: Noncompliance Determination (2010-SE-1402) June 16, 2010 DOE issued a Notice of Noncompliance Determination to Fuzhou Sunlight Lighting Electrical Appliance Co., Ltd. finding that a variety of models of incandescent reflector lamps do not comport with the energy conservation standards. DOE determined the products were noncompliant based on the company's own testing. Fuzhou Sunlight must immediately notify each person (or company) to whom Fuzhou Sunlight distributed the noncompliant products that the products do not meet Federal standards. In addition, Fuzhou Sunlight must provide to DOE documents and records showing the number of units Fuzhou Sunlight distributed and to whom. The manufacturer

98

GE Lighting Solutions: Noncompliance Determination (2013-SE-4901) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Noncompliance Determination (2013-SE-4901) Noncompliance Determination (2013-SE-4901) GE Lighting Solutions: Noncompliance Determination (2013-SE-4901) January 11, 2013 DOE issued a Notice of Noncompliance Determination to General Electric Lighting Solutions finding that various models of traffic signal modules do not comport with the energy conservation standards. DOE determined the products were noncompliant based on the company's own testing. GE Lighting Solutions must immediately notify each person (or company) to whom GE Lighting Solutions distributed the noncompliant products that the products do not meet Federal standards. In addition, GE Lighting Solutions must provide to DOE documents and records showing the number of units GE Lighting Solutions distributed and to whom. The manufacturer

99

Aspen: Noncompliance Determination (2011-SE-1602) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Aspen: Noncompliance Determination (2011-SE-1602) Aspen: Noncompliance Determination (2011-SE-1602) Aspen: Noncompliance Determination (2011-SE-1602) October 3, 2011 DOE issued a Notice of Noncompliance Determination to Aspen Manufacturing finding that indoor unit model AEW244 and outdoor unit model NCPC-424-3010 of residential split system central air conditioning system do not comport with the energy conservation standards. DOE determined the product was noncompliant based on the company's own testing. Aspen must immediately notify each person (or company) to whom Aspen distributed the noncompliant products that the product does not meet Federal standards. In addition, Aspen must provide to DOE documents and records showing the number of units Aspen distributed and to whom. The manufacturer and/or private labeler of

100

Precision: Noncompliance Determination (2013-SE-1410) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Precision: Noncompliance Determination (2013-SE-1410) Precision: Noncompliance Determination (2013-SE-1410) Precision: Noncompliance Determination (2013-SE-1410) April 10, 2013 DOE issued a Notice of Noncompliance Determination to Precision Trading Corp. finding that Precision model Premium PFR515M, a freezer, does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Precision must immediately notify each person (or company) to whom Precision distributed the noncompliant products that the product does not meet Federal standards. In addition, Precision must provide to DOE documents and records showing the number of units Precision distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties.

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Philips: Noncompliance Determination (2012-SE-2605) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Noncompliance Determination (2012-SE-2605) Noncompliance Determination (2012-SE-2605) Philips: Noncompliance Determination (2012-SE-2605) August 31, 2012 DOE issued a Notice of Noncompliance Determination to Philips Lighting Electronics N. A. finding that basic model VEL-1S40-SC, a fluorescent lamp ballast, does not comport with the energy conservation standards. DOE determined the product was noncompliant based on the company's own testing. Philips must immediately notify each person (or company) to whom Philips distributed the noncompliant products that the product does not meet Federal standards. In addition, Philips must provide to DOE documents and records showing the number of units Philips distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties.

102

Bigwall: Noncompliance Determination (2013-SE-1412) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Noncompliance Determination (2013-SE-1412) Noncompliance Determination (2013-SE-1412) Bigwall: Noncompliance Determination (2013-SE-1412) April 10, 2013 DOE issued a Notice of Noncompliance Determination to Bigwall Enterprises, Inc. finding that freezer model W1CF106 under the Wellington brand (''the Wellington W1CF106") does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Bigwall Enterprises, Inc. must immediately notify each person (or company) to whom Bigwall distributed the noncompliant products that the product does not meet Federal standards. In addition, Bigwall must provide to DOE documents and records showing the number of units Bigwall distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties.

103

Universal: Noncompliance Determination (2013-SE-26004) | Department of  

NLE Websites -- All DOE Office Websites (Extended Search)

Universal: Noncompliance Determination (2013-SE-26004) Universal: Noncompliance Determination (2013-SE-26004) Universal: Noncompliance Determination (2013-SE-26004) September 6, 2013 DOE issued a Notice of Noncompliance Determination to Universal Lighting Technologies, Inc. finding that fluorescent lamp ballast model B140R277HP does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Universal must immediately notify each person (or company) to whom Universal distributed the noncompliant products that the product does not meet Federal standards. In addition, Universal must provide to DOE documents and records showing the number of units Universal distributed and to whom. The manufacturer and/or private labeler of the product may be subject to

104

Sears: Noncompliance Determination (2011-SE-1418) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Sears: Noncompliance Determination (2011-SE-1418) Sears: Noncompliance Determination (2011-SE-1418) Sears: Noncompliance Determination (2011-SE-1418) June 26, 2012 DOE issued a Notice of Noncompliance Determination to Sears, Roebuck & Co. finding that Kenmore-brand model number 255.19502010 ("19502") and Kenmore-brand model number 255.19702010 ("19702"), compact chest freezers, do not comport with the energy conservation standards. DOE determined the products were noncompliant based on DOE testing. Sears must immediately notify each person (or company) to whom Sears distributed the noncompliant products that the products do not meet Federal standards. In addition, Sears must provide to DOE documents and records showing the number of units Sears distributed and to whom. The manufacturer and/or private labeler of

105

Cooper: Noncompliance Determination (2012-SE-4701) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cooper: Noncompliance Determination (2012-SE-4701) Cooper: Noncompliance Determination (2012-SE-4701) Cooper: Noncompliance Determination (2012-SE-4701) June 12, 2012 DOE issued a Notice of Noncompliance Determination to Cooper Power Systems, LLC finding that basic models 277-99.28, 277-99.26, and 277-99.22 of distribution transformers do not comport with the energy conservation standards. DOE determined the products were noncompliant based on the company's own testing. Cooper must immediately notify each person (or company) to whom Cooper distributed the noncompliant products that the products do not meet Federal standards. In addition, Cooper must provide to DOE documents and records showing the number of units Cooper distributed and to whom. The manufacturer and/or private labeler of the product may

106

Teddico: Noncompliance Determination (2012-SE-5409) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Teddico: Noncompliance Determination (2012-SE-5409) Teddico: Noncompliance Determination (2012-SE-5409) Teddico: Noncompliance Determination (2012-SE-5409) November 20, 2012 DOE issued a Notice of Noncompliance Determination to The Electrical Design, Development and Implementation Company d/b/a Teddico finding that a variety of basic models of magnetic probe-start metal halide lamp fixtures do not comport with the energy conservation standards. DOE determined the products were noncompliant based on the company's own testing. Teddico must immediately notify each person (or company) to whom Teddico distributed the noncompliant products that the products do not meet Federal standards. In addition, Teddico must provide to DOE documents and records showing the number of units Teddico distributed and to whom. The

107

Simkar: Noncompliance Determination (2012-SE-5408) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Noncompliance Determination (2012-SE-5408) Noncompliance Determination (2012-SE-5408) Simkar: Noncompliance Determination (2012-SE-5408) December 5, 2012 DOE issued a Notice of Noncompliance Determination to Simkar Corporation finding that magnetic probe-start and pulse-start basic models of metal halide lamp fixtures do not comport with the energy conservation standards. DOE determined the products were noncompliant based on Simkar's own testing. Simkar must immediately notify each person (or company) to whom Simkar distributed the noncompliant products that the products do not meet Federal standards. In addition, Simkar must provide to DOE documents and records showing the number of units Simkar distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties.

108

Felix Storch: Noncompliance Determination (2011-SE-1420) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Felix Storch: Noncompliance Determination (2011-SE-1420) Felix Storch: Noncompliance Determination (2011-SE-1420) Felix Storch: Noncompliance Determination (2011-SE-1420) October 5, 2011 DOE issued a Notice of Noncompliance Determination to Felix Storch, Inc., finding that model number CF11ES, a chest freezer does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Felix Storch must immediately notify each person (or company) to whom Felix Storch distributed the noncompliant products that the product does not meet Federal standards. In addition, Felix Storch must provide to DOE documents and records showing the number of units Felix Storch distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil

109

Bigwall: Noncompliance Determination (2013-SE-1412) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bigwall: Noncompliance Determination (2013-SE-1412) Bigwall: Noncompliance Determination (2013-SE-1412) Bigwall: Noncompliance Determination (2013-SE-1412) April 10, 2013 DOE issued a Notice of Noncompliance Determination to Bigwall Enterprises, Inc. finding that freezer model W1CF106 under the Wellington brand (''the Wellington W1CF106") does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Bigwall Enterprises, Inc. must immediately notify each person (or company) to whom Bigwall distributed the noncompliant products that the product does not meet Federal standards. In addition, Bigwall must provide to DOE documents and records showing the number of units Bigwall distributed and to whom. The manufacturer and/or private labeler of the

110

Leader Electronics: Notice of Allowance (2010-SE-2301) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Leader Electronics: Notice of Allowance (2010-SE-2301) Leader Electronics: Notice of Allowance (2010-SE-2301) Leader Electronics: Notice of Allowance (2010-SE-2301) September 13, 2010 DOE issued a Notice of Allowance to Resume Distribution to Leader Electronics Inc., authorizing Leader Electronics to resume distribution of the external power supply model "MU03-F050040-A1(MU03-F1050-AKOS)". DOE had previously issued a Notice of Non-Compliance Determination based on test results submitted by Leader Electronics showing that certain models were noncompliant. After an internal review, Leader Electronics determined that the original test results reported to DOE were incorrect. Leader has submitted complete test data, which DOE has reviewed closely, and DOE has determined that the model complies with the applicable energy conservation

111

CNA: Noncompliance Determination (2013-SE-1430) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Noncompliance Determination (2013-SE-1430) Noncompliance Determination (2013-SE-1430) CNA: Noncompliance Determination (2013-SE-1430) July 1, 2013 DOE issued a Notice of Noncompliance Determination to CNA International, Inc., d/b/a MC Appliance Corp. finding that Magic Chef-brand model HMCF7W ("CNA model HMCF7W") does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. CNA must immediately notify each person (or company) to whom CNA distributed the noncompliant products that the product does not meet Federal standards. In addition, CNA must provide to DOE documents and records showing the number of units CNA distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties.

112

Golden Opportunity: Noncompliance Determination (2013-SE-1418) | Department  

NLE Websites -- All DOE Office Websites (Extended Search)

Noncompliance Determination (2013-SE-1418) Noncompliance Determination (2013-SE-1418) Golden Opportunity: Noncompliance Determination (2013-SE-1418) April 24, 2013 DOE issued a Notice of Noncompliance Determination to Golden Opportunity, Inc. finding that freezer models Golden GFC51 and Golden GFC69 do not comport with the energy conservation standards. DOE determined the products were noncompliant based on DOE testing. Golden Opportunity must immediately notify each person (or company) to whom Golden Opportunity distributed the noncompliant products that the products do not meet Federal standards. In addition, Golden Opportunity must provide to DOE documents and records showing the number of units Golden Opportunity distributed and to whom. The manufacturer and/or private labeler of the products may be

113

High-Temperature Microfluidic Synthesis of CdSe Nanocrystals in Nanoliter Droplets  

E-Print Network (OSTI)

Microfluidic Synthesis of CdSe Nanocrystals in Nanolitertemperature synthesis of CdSe nanocrystals in nanoliter-produced high quality CdSe nanocrystals, as verified by

Chan, Emory M.; Alivisatos, A. Paul; Mathies, Richard A.

2005-01-01T23:59:59.000Z

114

Mechanical and electronic-structure properties of compressed CdSe tetrapod nanocrystals  

E-Print Network (OSTI)

properties of compressed CdSe tetrapod nanocrystals Joshuamechanical properties of CdSe tetrapods under directionalstructural transformations in CdSe nanocrystals, it has only

Schrier, Joshua; Lee, Byounghak; Wang, Lin-Wang

2008-01-01T23:59:59.000Z

115

Excitons in single and double GaAs/AlGaAs/ZnSe/Zn(Cd)MnSe heterovalent quantum wells  

Science Conference Proceedings (OSTI)

Exciton photoluminescence spectra, photoluminescence excitation spectra, and magnetophotoluminescence spectra of single (GaAs/AlGaAs/ZnMnSe) and double (GaAs/AlGaAs/ZnSe/ZnCdMnSe) heterovalent quantum wells formed by molecular beam epitaxy are studied. It is shown that the exciton absorption spectrum of such quantum wells mainly reproduces the resonant exciton spectrum expected for usual quantum wells with similar parameters, while the radiative exciton recombination have substantial distinctions, in particular the additional localization mechanism determined by defects generated by heterovalent interface exists. The nature of these localization centers is not currently clarified; their presence leads to broadening of photoluminescence lines and to an increase in the Stokes shift between the peaks of luminescence and absorption, as well as determining the variation in the magnetic g factor of bound exciton complexes.

Toropov, A. A., E-mail: toropov@beam.ioffe.ru; Kaibyshev, V. Kh.; Terent'ev, Ya. V.; Ivanov, S. V.; Kop'ev, P. S. [Russian Academy of Sciences, Ioffe Physical Technical Institute (Russian Federation)

2011-02-15T23:59:59.000Z

116

Strong downslope wind events in Ammassalik, SE Greenland  

Science Conference Proceedings (OSTI)

Ammassalik in SE Greenland is known for strong winds events that can reach hurricane intensity and cause severe destruction in the local town. Yet, these winds and their impact on the nearby fjord and shelf region have not been studied in detail.

M. Oltmanns; F. Straneo; G. W. K. Moore; S. H. Mernild

117

Surface Enhanced Raman Spectroscopy of Pyridine on CdSe/ZnBeSe Quantum Dots Grown by MBE  

SciTech Connect

Using Surface Enhanced Raman Spectroscopy (SERS), we observed Raman enhancements (104-105) for pyridine molecules adsorbed on a II-VI semiconductor CdSe/ZnBeSe sample of uncapped self-assembled quantum dots produced by molecular beam epitaxy. When a monolayer of pyridine is adsorbed on these structures, excitation at 488 nm produces intense Raman spectra a very large enhancement of the a1, b1 and b2 modes. This indicates the presence of charge-transfer as a contributor to the enhacement.

Livingstone, Richard [City College of New York, New York, NY (United States)

2010-08-06T23:59:59.000Z

118

File:EIA-PSJ-SE-BOE.pdf | Open Energy Information  

Open Energy Info (EERE)

SE-BOE.pdf SE-BOE.pdf Jump to: navigation, search File File history File usage Paradox-San Juan Basin, Southeast Part By 2001 BOE Reserve Class Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Full resolution ‎(5,100 × 6,600 pixels, file size: 13.15 MB, MIME type: application/pdf) Description Paradox-San Juan Basin, Southeast Part By 2001 BOE Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Utah, Colorado, New Mexico, Arizona File history Click on a date/time to view the file as it appeared at that time.

119

File:EIA-PSJ-SE-GAS.pdf | Open Energy Information  

Open Energy Info (EERE)

PSJ-SE-GAS.pdf PSJ-SE-GAS.pdf Jump to: navigation, search File File history File usage Paradox-San Juan Basin, Southeast Part By 2001 Gas Reserve Class Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Full resolution ‎(5,100 × 6,600 pixels, file size: 13.13 MB, MIME type: application/pdf) Description Paradox-San Juan Basin, Southeast Part By 2001 Gas Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Utah, Colorado, New Mexico, Arizona File history Click on a date/time to view the file as it appeared at that time.

120

Haier: Noncompliance Determination (2011-SE-1408) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

08) 08) Haier: Noncompliance Determination (2011-SE-1408) October 18, 2011 DOE issued a Notice of Noncompliance Determination to Haier America Trading, L.L.C. finding that model number HNCM070, a chest freezer, does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Haier must immediately notify each person (or company) to whom Haier distributed the noncompliant products that the product does not meet Federal standards. In addition, Haier must provide to DOE documents and records showing the number of units Haier distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties. Haier: Noncompliance Determination (2011-SE-1408) More Documents & Publications

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Advanced Distributor Products: Noncompliance Determination (2010-SE-0304) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Advanced Distributor Products: Noncompliance Determination Advanced Distributor Products: Noncompliance Determination (2010-SE-0304) Advanced Distributor Products: Noncompliance Determination (2010-SE-0304) May 28, 2010 DOE issued a Notice of Noncompliance Determination to Advanced Distributor Products finding that basic model N2H348A(G)KB* + H,GE50560 + *8MPV125 and basic model N2H360A(G)KB* + H,GE50560 + MV16J22**B* do not comport with the energy conservation standards. DOE determined the products were noncompliant based on ADP's certification. ADP must immediately notify each person (or company) to whom ADP distributed the noncompliant products that the product does not meet Federal standards. In addition, ADP must provide to DOE documents and records showing the number of units ADP distributed and to whom. The manufacturer and/or private labeler of the

122

Localizing Micro-grids Research for the SE Asian Region  

NLE Websites -- All DOE Office Websites (Extended Search)

Localizing Micro-grids Research for the SE Asian Region Localizing Micro-grids Research for the SE Asian Region Speaker(s): Cheng-Guan (Michael) Quah Valerie Choy Date: December 3, 2010 - 12:00pm Location: 90-3122 This presentation discusses developments (and test-beds) of micro-grids and distributed generation systems that are on-going in Singapore and poses the question as to whether simpler versions of such systems would be applicable to meet the challenges of rural electrification and energy poverty particularly those of its closest neighbors. Southeast Asia is an ethnically and culturally diverse region comprising more than 10 nations where 160 million people still live without electricity. Off-grid electrification for rural village communities and eco-resorts using DG and micro-grid systems are conceivable but many technical, political, cultural

123

Haier: Noncompliance Determination (2011-SE-1428) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

28) 28) Haier: Noncompliance Determination (2011-SE-1428) April 23, 2013 DOE issued a Notice of Noncompliance Determination to Haier America Trading, LLC finding that Haier model HMCM106EA, a freezer, does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Haier must immediately notify each person (or company) to whom Haier distributed the noncompliant products that the product does not meet Federal standards. In addition, Haier must provide to DOE documents and records showing the number of units Haier distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties. Haier: Noncompliance Determination (2011-SE-1428) More Documents & Publications

124

A Se-mash Hit | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

A Se-mash Hit A Se-mash Hit Developer Data Web Services Source Code Challenges Semantic Web Blogs Let's Talk Developers You are here Data.gov » Communities » Developers A Se-mash Hit Submitted by Data.gov Administrator on Tue, 12/18/2012 - 6:11pm Data.gov Mash-A-Thon 1 builds Web 3.0 apps and enthusiasm A lecture by Professor Jim Hendler at the Data.gov Mash-a-Thon 2010 For two days in August, a classroom in Washington, D.C.'s Dupont Circle filled with Federal developers, students and semantic web experts. They shared one purpose: to create a new generation of "linked-data" applications called "mashups" that use Data.gov's free public data in new and innovative ways. The U.S. government is in the vanguard of understanding and using the semantic web, which will transform the World Wide Web. Data will "talk" to one another,

125

Kinetics of Ge-Se-In Film Growth  

SciTech Connect

The processes of vacuum evaporation and condensation in the Ge-Se-In system were investigated. Thin amorphous films were deposited by modified thermal evaporation from previously synthesized non-crystalline (GeSe{sub y}){sub 1-x}In{sub x} ingots, where x = 0, 5, 10, 15, 20 and y = 4, 5 and 6. The specific evaporation rate was determined by measuring of the mass of evaporator before evaporation and the mass of empty evaporator after evaporation in temperature range of evaporation (500-800) K. The substrate temperature was varied in the range (300-430) K to study the condensation process and specific condensation rate was determined by measuring of the substrate mass before and after condensation. The condensation energy of the (GeSe{sub y}){sub 1-x}In{sub x} layers steady increases at indium addition.The thin films studied by transmission electron microscopy (TEM) and electron microdiffraction (EMD) reveal homogeneous and amorphous structure. The layer composition determined by Auger electron spectroscopy is close to that of the corresponded bulk samples.

Stoilova, A.; Petkov, P.; Nedeva, Y. [Department of Physics, University of Chemical Technology and Metallurgy, 1756 Sofia (Bulgaria); Monchev, B. [Institute of Electrochemistry and Energy Systems, BAS, 1113 Sofia (Bulgaria)

2010-01-21T23:59:59.000Z

126

SE-MA-NO Electric Coop | Open Energy Information  

Open Energy Info (EERE)

MA-NO Electric Coop MA-NO Electric Coop Jump to: navigation, search Name SE-MA-NO Electric Coop Place Missouri Utility Id 16851 Utility Location Yes Ownership C NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Municipal HPS 100 W Lighting Municipal HPS 250 W Lighting Residential Residential Residential/Commercial HPS 100 W Lighting Residential/Commercial HPS 250 W Lighting Average Rates Residential: $0.0804/kWh Commercial: $0.0763/kWh Industrial: $0.0649/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a"

127

File:EIA-PSJ-SE-LIQ.pdf | Open Energy Information  

Open Energy Info (EERE)

File File Edit with form History Facebook icon Twitter icon » File:EIA-PSJ-SE-LIQ.pdf Jump to: navigation, search File File history File usage Paradox-San Juan Basin, Southeast Part By 2001 Liquids Reserve Class Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Full resolution ‎(5,100 × 6,600 pixels, file size: 13.12 MB, MIME type: application/pdf) Description Paradox-San Juan Basin, Southeast Part By 2001 Liquids Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Utah, Colorado, New Mexico, Arizona

128

STATE OF WASHINGTON DEPARTMENT OF COMMERCE 1011 Plum Street SE  

NLE Websites -- All DOE Office Websites (Extended Search)

STATE OF WASHINGTON STATE OF WASHINGTON DEPARTMENT OF COMMERCE 1011 Plum Street SE ï‚Ÿ PO Box 42525 ï‚Ÿ Olympia, Washington 98504-2525 ï‚Ÿ (360) 725-4000 www.commerce.wa.gov July 33, 2013 Roland J. Risser Building Technologies Program Manager Office of Energy Efficiency and Renewable Energy U.S. Department of Energy 1000 Independence Avenue SW, Mail Stop EE-2J Washington, DC 20585-0121 RE: State Certification of Residential and Commercial Building Energy Codes Dear Mr. Risser: In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of Washington has adopted the 2012 Edition, Washington State Energy Code, which meets or exceeds the 2012 version of the International Energy Conservation Code (IECC) for low-rise residential

129

Spectroscopy, photo-physics, and time resolved exciton dynamics of GaSe quantum dots  

E-Print Network (OSTI)

of Carrier Relaxation Dynamics in Type II CdSe/CdTe TetrapodHigh Quality Zinc Blende CdSe Nanocrystals”, J. Phys. Chem.Shape Tuning of Type II CdTe-CdSe Colloidal Nanocrystal

Mirafzal, Hoda

2011-01-01T23:59:59.000Z

130

Shape dependence of band-edge exciton fine structure in CdSe nanocrystals  

E-Print Network (OSTI)

exciton fine structure in CdSe nanocrystals Qingzhong Zhao,fine structure of wurtzite CdSe nanocrystals is investigatedexciton fine structure of CdSe nanocrystals is determined by

Zhao, Qingzhong

2008-01-01T23:59:59.000Z

131

Strain-dependent photoluminescence behavior in three geometries of CdSe/CdS nanocrystals  

E-Print Network (OSTI)

X. et al. Shape control of CdSe nanocrystals. Nature 404,of nearly monodisperse CdSe/CdS core/shell nanocrystalsgrowth of highly luminescent CdSe/CdS nanoheterostructures

Choi, Charina L

2010-01-01T23:59:59.000Z

132

T-641: Oracle Java SE Critical Patch Update Advisory - June 2011 |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1: Oracle Java SE Critical Patch Update Advisory - June 2011 1: Oracle Java SE Critical Patch Update Advisory - June 2011 T-641: Oracle Java SE Critical Patch Update Advisory - June 2011 June 8, 2011 - 12:26pm Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory - June 2011 PLATFORM: JDK and JRE 6 Update 25 and earlier, Java SE, JDK 5.0 Update 29 and earlier Java SE, SDK 1.4.2_31 and earlier ABSTRACT: This Critical Patch Update contains 17 new security fixes for Oracle Java SE - 5 apply to client and server deployments of Java SE, 11 apply to client deployments of Java SE only, and 1 applies to server deployments of Java SE only. All of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a network without the need for a username and password. Oracle CVSS scores assume that a user running a Java applet or Java Web

133

T-641: Oracle Java SE Critical Patch Update Advisory - June 2011 |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

41: Oracle Java SE Critical Patch Update Advisory - June 2011 41: Oracle Java SE Critical Patch Update Advisory - June 2011 T-641: Oracle Java SE Critical Patch Update Advisory - June 2011 June 8, 2011 - 12:26pm Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory - June 2011 PLATFORM: JDK and JRE 6 Update 25 and earlier, Java SE, JDK 5.0 Update 29 and earlier Java SE, SDK 1.4.2_31 and earlier ABSTRACT: This Critical Patch Update contains 17 new security fixes for Oracle Java SE - 5 apply to client and server deployments of Java SE, 11 apply to client deployments of Java SE only, and 1 applies to server deployments of Java SE only. All of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a network without the need for a username and password. Oracle CVSS scores assume that a user running a Java applet or Java Web

134

Secretary Chu to Lead Delegation to SE4All, CEM Conferences in London |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Secretary Chu to Lead Delegation to SE4All, CEM Conferences in Secretary Chu to Lead Delegation to SE4All, CEM Conferences in London Secretary Chu to Lead Delegation to SE4All, CEM Conferences in London April 9, 2012 - 10:13am Addthis WASHINGTON, DC - Later this month, U.S. Energy Secretary Steven Chu will join Energy Ministers from the world's leading economies in London for the UN Sustainable Energy for All (SE4All) conference and the Clean Energy Ministerial (CEM3). CEM3 and SE4All will hold a joint press conference on April 26, 2012, to announce outcomes from the ministerial and release the SE4All Action Agenda. The High Level Group of SE4All will work to accelerate progress on critical clean energy priorities. SE4All's objectives are to double the global rate of improvement in energy efficiency, double the share of renewable

135

Secretary Chu to Lead Delegation to SE4All, CEM Conferences in London |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SE4All, CEM Conferences in SE4All, CEM Conferences in London Secretary Chu to Lead Delegation to SE4All, CEM Conferences in London April 9, 2012 - 10:13am Addthis WASHINGTON, DC - Later this month, U.S. Energy Secretary Steven Chu will join Energy Ministers from the world's leading economies in London for the UN Sustainable Energy for All (SE4All) conference and the Clean Energy Ministerial (CEM3). CEM3 and SE4All will hold a joint press conference on April 26, 2012, to announce outcomes from the ministerial and release the SE4All Action Agenda. The High Level Group of SE4All will work to accelerate progress on critical clean energy priorities. SE4All's objectives are to double the global rate of improvement in energy efficiency, double the share of renewable energy in the global energy mix, and ensure universal access to modern

136

T-558: Oracle Java SE and Java for Business Critical Patch Update...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011 T-558: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011...

137

Aqueous synthesis and characterization of CdSe/ZnO core-shell nanoparticles  

Science Conference Proceedings (OSTI)

Core-shell nanomaterials based on CdSe as the core and ZnO as the shell were prepared using an aqueous route involving the use of Cd salt and NaBH4 in reaction with Se to generate CdSe in the presence of thioglycerol (TG) as a stabilizer. ...

B. P. Rakgalakane; M. J. Moloto

2011-01-01T23:59:59.000Z

138

Synthesis and characterization of blue emitting ZnSe quantum dots  

Science Conference Proceedings (OSTI)

In this work we show a new experimental methodology to obtain ZnSe nanocrystals in aqueous solution aiming their application as biophotonic probes. The nanocrystals were obtained using a simple procedure based on the arrested precipitation of ZnSe in ... Keywords: Blue emission, Colloidal synthesis, Water soluble quantum dots, ZnSe

J. J. Andrade; A. G. Brasil, Jr.; P. M. A. Farias; A. Fontes; B. S. Santos

2009-03-01T23:59:59.000Z

139

Photodeposition of Pt on Colloidal CdS and CdSe/CdS Semiconductor Nanostructures  

E-Print Network (OSTI)

on Colloidal CdS and CdSe/CdS Semiconductor Nanostructuresof Pt on colloidal CdS and CdSe/CdS core/shell nanocrystals.photoexcitation of CdS and CdSe/CdS in the presence of an

Dukovic, Gordana

2008-01-01T23:59:59.000Z

140

Polymorphic transformation in TlSe and the electrical properties of phases  

Science Conference Proceedings (OSTI)

Alloys in the TlSe-Se system on the side of the TlSe compound in the phase diagram have been investigated using differential thermal, X-ray powder diffraction, and microstructural analyses. The phase diagram of the system has been constructed, and the temperature dependences of the electrical conductivity of the phases obtained have been examined. An analysis of the thermograms of alloys in the (TlSe){sub 0.96}-Se{sub 0.04} system has revealed a structural phase transition at a temperature of 470 {+-} 1 K. Investigations into the temperature dependences of the electrical conductivity in the range 120-450 K have demonstrated that the temperature dependence of the electrical conductivity for the (TlSe){sub 0.96}-Se{sub 0.04} alloy exhibits metallic behavior.

Najafov, A. I. [Azerbaijan National Academy of Sciences, Institute of Radiation Problems (Azerbaijan); Guseinov, G. G.; Alekperov, O. Z. [Azerbaijan National Academy of Sciences, Institute of Physics (Azerbaijan); Sardarly, R. M., E-mail: sardarli@yahoo.com; Abdullaev, A. P.; Eyubova, N. A. [Azerbaijan National Academy of Sciences, Institute of Radiation Problems (Azerbaijan)

2008-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Elastic and surface energies: Two key parameters for CdSe quantum dot formation  

SciTech Connect

The two-dimensional-three-dimensional transition of a strained CdSe layer on (001) ZnSe induced by the use of amorphous selenium is studied. To precisely control the thickness of the CdSe layer, atomic layer epitaxy growth mode is used. Atomic force microscopy and reflection high-energy electron diffraction measurements reveal the formation of CdSe islands when 3 ML (monolayers) of CdSe, corresponding to the critical thickness, are deposited. When only 2.5 ML of CdSe are deposited another relaxation mechanism is observed, leading to the appearance of strong undulations on the surface. For a 3 ML thick CdSe layer, transmission electron microscopy images indicate that the formation of the islands occurs only after the amorphous selenium desorption.

Robin, Ivan-Christophe; Andre, Regis; Bougerol, Catherine; Aichele, Thomas; Tatarenko, Serge [Laboratoire de Spectrometrie Physique/CNRS UMR5588, Universite Joseph Fourier, Grenoble, BP87, 38402 St. Martin d'Heres (France)

2006-06-05T23:59:59.000Z

142

Method of synthesizing and growing copper-indium-diselenide (CuInSe.sub.2) crystals  

DOE Patents (OSTI)

A process for preparing CuInSe.sub.2 crystals includes melting a sufficient quantity of B.sub.2 O.sub.3 along with stoichiometric quantities of Cu, In, and Se in a crucible in a high pressure atmosphere of inert gas to encapsulate the CuInSe.sub.2 melt and confine the Se to the crucible. Additional Se in the range of 1.8 to 2.2 percent over the stoichiometric quantity is preferred to make up for small amounts of Se lost in the process. The crystal is grown by inserting a seed crystal through the B.sub.2 O.sub.3 encapsulate into contact with the CuInSe.sub.2 melt and withdrawing the seed upwardly to grow the crystal thereon from the melt.

Ciszek, Theodore F. (Evergreen, CO)

1987-01-01T23:59:59.000Z

143

HKC-US: Proposed Penalty (2013-SE-33002) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Proposed Penalty (2013-SE-33002) Proposed Penalty (2013-SE-33002) HKC-US: Proposed Penalty (2013-SE-33002) July 11, 2013 DOE alleged in a Notice of Proposed Civil Penalty that HKC-US, LLC failed to certify a ceiling fan light kit as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. HKC-US: Proposed Penalty (2013-SE-33002) More Documents & Publications HKC-US: Order (2013-SE-33002) Royal Pacific: Proposed Penalty (2013-SE-33004) Excellence Opto: Proposed Penalty

144

U-105:Oracle Java SE Critical Patch Update Advisory | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5:Oracle Java SE Critical Patch Update Advisory 5:Oracle Java SE Critical Patch Update Advisory U-105:Oracle Java SE Critical Patch Update Advisory February 16, 2012 - 11:45am Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory PLATFORM: 1.4.2_35 and prior, 5.0 Update 33 and prior; 6 Update 30 and prior; 7 Update 2 and prior ABSTRACT: Multiple vulnerabilities were reported in Oracle Java SE. A remote user can execute arbitrary code on the target system. A remote user can cause denial of service conditions. reference LINKS: Oracle Java SE Critical Patch Critical Patch Security Alerts SecurityTracker Alert ID: 1026688 Secunia Advisory: SA48009 Red Hat advisory IMPACT ASSESSMENT: High Discussion: A remote user can send specially crafted data to execute arbitrary code on the target system or cause complete denial of service conditions. The Java

145

U-105:Oracle Java SE Critical Patch Update Advisory | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

05:Oracle Java SE Critical Patch Update Advisory 05:Oracle Java SE Critical Patch Update Advisory U-105:Oracle Java SE Critical Patch Update Advisory February 16, 2012 - 11:45am Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory PLATFORM: 1.4.2_35 and prior, 5.0 Update 33 and prior; 6 Update 30 and prior; 7 Update 2 and prior ABSTRACT: Multiple vulnerabilities were reported in Oracle Java SE. A remote user can execute arbitrary code on the target system. A remote user can cause denial of service conditions. reference LINKS: Oracle Java SE Critical Patch Critical Patch Security Alerts SecurityTracker Alert ID: 1026688 Secunia Advisory: SA48009 Red Hat advisory IMPACT ASSESSMENT: High Discussion: A remote user can send specially crafted data to execute arbitrary code on the target system or cause complete denial of service conditions. The Java

146

ADVANCES IN SE-79 ANALYSES ON SAVANNAH RIVER SITE RADIOACTIVE WASTE MATRICES  

SciTech Connect

Waste cleanup efforts underway at the United States Department of Energy's (DOE) Savannah River Site (SRS) in South Carolina, as well as other DOE nuclear sites, have created a need to characterize {sup 79}Se in radioactive waste inventories. Successful analysis of {sup 79}Se in high activity waste matrices is challenging for a variety of reasons. As a result of these unique challenges, the successful quantification of {sup 79}Se in the types of matrices present at SRS requires an extremely efficient and selective separation of {sup 79}Se from high levels of interfering radionuclides. A robust {sup 79}Se radiochemical separation method has been developed at the Savannah River National Laboratory (SRNL) which is routinely capable of successfully purifying {sup 79}Se from a wide range of interfering radioactive species. In addition to a dramatic improvements in the Kd, ease, and reproducibility of the analysis, the laboratory time has been reduced from several days to only 6 hours.

Diprete, D; C Diprete, C; Ned Bibler, N; Cj Bannochie, C; Michael Hay, M

2009-03-16T23:59:59.000Z

147

ARTIGO INTERNET Festival Internacional de Tunas "Cidade de Lisboa" realiza-se no sbado  

E-Print Network (OSTI)

NewsSearch ARTIGO INTERNET Festival Internacional de Tunas "Cidade de Lisboa" realiza-se no sábado Internacional de Tunas "Cidade de Lisboa" realiza-se no sábado As comemorações do 17.º aniversário da Tuna Internacional de Tunas "Cidade de Lisboa", que este ano se realiza no sábado, no Coliseu dos Recreios. Apesar de

Instituto de Sistemas e Robotica

148

Photovoltaic Devices Employing Ternary PbSxSe1-x Nanocrystals  

Science Conference Proceedings (OSTI)

We report solar cells based on highly confined nanocrystals of the ternary compound PbSxSe1-x. Crystalline, monodisperse alloyed nanocrystals are obtained using a one-pot, hot injection reaction. Rutherford back scattering and energy filtered transmission electron microscopy suggest that the S and Se anions are uniformly distributed in the alloy nanoparticles. Photovoltaic devices made using ternary nanoparticles are more efficient than either pure PbS or pure PbSe based nanocrystal devices.

Ma, Wanli; Luther, Joseph; Zheng, Haimei; Wu, Yue; Alivisatos, A. Paul

2009-02-05T23:59:59.000Z

149

CdSe/ZnS Nanoparticle Composites with Amine-Functionalized Polyfluoren...  

NLE Websites -- All DOE Office Websites (Extended Search)

CdSeZnS Nanoparticle Composites with Amine-Functionalized Polyfluorene Derivatives for Polymeric Light-Emitting Diodes: Synthesis, Photophysical Properties, and the...

150

Direct Patterning of CdSe Quantum Dots into Sub-100 nm Structures  

SciTech Connect

Ordered, two-dimensional cadmium selenide (CdSe) arrays have been fabricated on indium-doped tin oxide (ITO) electrodes using the pattern replication in nonwetting templates (PRINT) process. CdSe quantum dots (QDs) with an average diameter of 2.7 nm and a pyridine surface ligand were used for patterning. The PRINT technique utilizes a perfluoropolyether (PFPE) elastomeric mold that is tolerant of most organic solvents, thus allowing solutions of CdSe QDs in 4-picoline to be used for patterning without significant deformation of the mold. Nanometer-scale diffraction gratings have been successfully replicated with CdSe QDs.

Hampton, Meredith J.; Templeton, Joseph L.; DeSimone, Joseph M.

2010-01-01T23:59:59.000Z

151

Fabrication and Characterization of Polycrystalline CuInSe 2 Thin ...  

Science Conference Proceedings (OSTI)

Symposium, Thin Film Structures for Energy Efficient Systems. Presentation Title, Fabrication and Characterization of Polycrystalline CuInSe2 Thin Film by ...

152

Photovoltaic effect in InSe Application to Solar Energy Conversion  

E-Print Network (OSTI)

253 Photovoltaic effect in InSe Application to Solar Energy Conversion A. Segura, J. P. Guesdon, J are reported. Photovoltaic spectra are fitted with measured values oftransport and optical parameters. InSe is shown to be a new material with attractive characteristics for solar energy conversion. Performance

Paris-Sud XI, Université de

153

Photovoltaic cells fabricated by electrophoretic deposition of CdSe nanocrystals  

E-Print Network (OSTI)

Photovoltaic cells fabricated by electrophoretic deposition of CdSe nanocrystals Nathanael J. Smith Electrophoretic deposition was used to deposit CdSe nanocrystals on TiO2 for use in photovoltaic cells formed. A solar cell constructed using electrophoretic deposition exhibited a photovoltaic response from

Smith, Nathanael J.

154

Development of a Low Cost Insulated Foil Substrate for Cu(InGaSe)2 Photovoltaics  

DOE Green Energy (OSTI)

The project validated the use of stainless steel flexible substrate coated with silicone-based resin dielectric, developed by Dow Corning Corporation, for Cu(InGa)Se2 based photovoltaics. The projects driving force was the high performance of Cu(InGa)Se2 based photovoltaics coupled with potential cost reduction that could be achieved with dielectric coated SS web substrate.

ERTEN ESER

2012-01-22T23:59:59.000Z

155

Influence of Surfactants and Charges on CdSe Quantum Dots  

Science Conference Proceedings (OSTI)

The chemistry between CdSe quantum dots and common surface capping ligands is invested using density functional theory. We will discuss the electronic structures and optical properties of CdSe QDs controlled by the size of particle, self-organization, capping ligands, and positive charges. Charges on quantum dots have profound effects on their structures, binding energies, and optical properties.

Yang, Ping; Tretiak, Sergei; Ivanov, Sergei

2011-07-11T23:59:59.000Z

156

Charge transport in mixed CdSe and CdTe colloidal nanocrystal films  

E-Print Network (OSTI)

We report the influence of trap states on charge transport through films of mixed CdTe and CdSe nanocrystals (NCs) between lateral electrodes, through layered films of CdTe and CdSe NCs in a layered geometry, and through ...

Bawendi, Moungi G.

157

Nanoimprinted photonic crystals for the modification of the (CdSe)ZnS nanocrystals light emission  

Science Conference Proceedings (OSTI)

We report experimental results of photoluminescence (PL) enhancement in 2D photonic crystals nanoimprinted in functionalized poly-methyl methacrylate (PMMA) based polymer in which (CdSe)ZnS core-shell luminescent nanocrystals (NCs) have been incorporated. ... Keywords: (CdSe)ZnS nanocrystals, Light extraction, Nanoimprint lithography, Photoluminescence, Photonic crystal

V. Reboud; N. Kehagias; M. Zelsmann; M. Striccoli; M. Tamborra; M. L. Curri; A. Agostiano; D. Mecerreyes; J. A. Alduncín; C. M. Sotomayor Torres

2007-05-01T23:59:59.000Z

158

Cu-Ga-Se Thin Films Prepared by a Combination of Electrodeposition and Evaporation Techniques  

Science Conference Proceedings (OSTI)

Cu-Ga-Se thin films were prepared using a combination of electrodeposition and evaporation techniques. A Cu-Se/Mo/glass precursor thin film was first prepared by galvanostatic electrodeposition. On top of this film three different thicknesses of Ga were deposited by evaporation. The Cu-Ga-Se thin films were formed by annealing the Ga/Cu-Se/Mo/glass thin film configuration in a tubular chamber with Se powder, at different temperatures. Thin films were characterized by X-ray diffraction (XRD), photocurrent spectroscopy (PS), inductively coupled plasma (ICP) analysis, and scanning electron microscopy (SEM). The detailed analysis from X-ray reveals that after annealing at 550 C the CuGaSe{sub 2} phase is formed when the thickness of Ga is 0.25 {mu}m, however at 0.5 {mu}m and 1.0 {mu}m Ga the formation of CuGa{sub 3}Se{sub 5} and CuGa{sub 5}Se{sub 8} phases is observed respectively. Band gap values were obtained using photocurrent spectroscopy.

Fernandez, A. M.; Turner, J. A.

2012-04-01T23:59:59.000Z

159

AeroSys: Order (2010-CE-01/0201 and 2010-SE-0302) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

AeroSys: Order (2010-CE-01/0201 and 2010-SE-0302) AeroSys: Order (2010-CE-01/0201 and 2010-SE-0302) AeroSys: Order (2010-CE-01/0201 and 2010-SE-0302) July 1, 2010 DOE ordered AeroSys, Inc. to pay a $25,000 civil penalty after finding AeroSys had manufactured and distributed in commerce in the U.S. various models of air conditioners and air conditioning heat pumps that did not comport with the applicable energy conservation standards. In addition, AeroSys had distributed air conditioners and air conditioning heat pumps without submitting the required certification reports. The Order adopted a Compromise Agreement, which reflected settlement terms between DOE and AeroSys. AeroSys: Order (2010-CE-01/0201 and 2010-SE-0302) More Documents & Publications AeroSys: Noncompliance Determination (2010-CE-01/0201 and 2010-SE-0302)

160

Air-Con International: Order (2010-SE-0301) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Air-Con International: Order (2010-SE-0301) Air-Con International: Order (2010-SE-0301) Air-Con International: Order (2010-SE-0301) November 17, 2010 DOE ordered Air-Con International, Inc. to pay a civil penalty of $10,000 after finding Air-Con had distributed in commerce in the U.S. central air conditioning units that were not in conformity with the applicable energy conservation standards. DOE also found that, while some units were exported, none of the units were properly marked as imports intended for exportation. The Order adopted a Compromise Agreement, which reflected settlement terms between DOE and Air-Con. Air-Con International: Order (2010-SE-0301) More Documents & Publications Air-Con International: Order (2010-SE-0301) Air-Con International: Noncompliance Determination and Proposed Penalty

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

SE HAN FINALIZADO LOS PREPARATIVOS PARA LA CONFERENCIA NACIONAL DE JUSTICIA  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SE HAN FINALIZADO LOS PREPARATIVOS PARA LA CONFERENCIA NACIONAL DE SE HAN FINALIZADO LOS PREPARATIVOS PARA LA CONFERENCIA NACIONAL DE JUSTICIA MEDIOAMBIENTAL Y PROGRAMA DE FORMACIÓN 2013 SE HAN FINALIZADO LOS PREPARATIVOS PARA LA CONFERENCIA NACIONAL DE JUSTICIA MEDIOAMBIENTAL Y PROGRAMA DE FORMACIÓN 2013 La National Environmental Justice Conference, Inc. (Conferencia de Justicia Medioambiental) se prepara para otro exitoso acontecimiento, ya que se aproxima la Conferencia Nacional de Justicia Medioambiental y Programa de Formación del 2013. 2013_NEJC_Release_Spanish.pdf More Documents & Publications PREPARATIVOS EN MARCHA PARA LA CONFERENCIA SOBRE JUSTICIA AMBIENTAL NACIONAL Y EL PROGRAMA DE CAPACITACIÓN 2014 2013 National Environmental Justice Conference and Training Program EIS-0281: Draft Environmental Impact Statement Summary (Spanish)

162

Ingersoll-Rand: Proposed Penalty (2012-SE-1608) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ingersoll-Rand: Proposed Penalty (2012-SE-1608) Ingersoll-Rand: Proposed Penalty (2012-SE-1608) Ingersoll-Rand: Proposed Penalty (2012-SE-1608) February 27, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Ingersoll-Rand manufactured and distributed a noncompliant basic model 2TTA0060A4000C central air conditioner in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Ingersoll-Rand: Proposed Penalty (2012-SE-1608) More Documents & Publications Ingersoll-Rand: Order (2012-SE-1608) WA_01_034_INGERSOLL-RAND_ENERGY_SYSTEMS_Waiver_of_Domestic_a.pdf

163

Surface Plasmon Excitation via Au Nanoparticles in CdSe Semiconductor  

SciTech Connect

We present experimental evidence for the large Raman and photoluminescence enhancement in CdSe semiconductor films grown on Si and glass substrates due to excitation of surface plasmon resonances in proximate gold metal nanoparticles deposited on the surface of CdSe film. Heterojunction diodes containing n-CdSe on p-Si semiconductor were fabricated and the surface of the diodes was in situ coated with Au nanoparticles using the ultra-high vacuum pulsed-laser deposition technique. A significant enhancement of the photocurrent was obtained in CdSe/p-Si containing Au nanoparticles on the surface compared to CdSe/p-Si due to the enhanced photo-absorption within the semiconductor by the phenomenon of surface plasmon resonance. These observations suggest a variety of approaches for improving the performance of devices such as photodetectors, photovoltaic, and related devices, including biosensors.

Pradhan, A. K. [Department of Engineering Norfolk State University, 700 Park Avenue, Norfolk, VA 23504 (United States); Department of Physics, Fisk University, 1000, 17 Avenue North, Nashville, TN 37208 (United States); Konda, R. B.; Mundle, R.; Mustafa, H.; Bamiduro, O. [Department of Engineering Norfolk State University, 700 Park Avenue, Norfolk, VA 23504 (United States); Roy, U. N.; Cui, Y. [Department of Physics, Fisk University, 1000, 17 Avenue North, Nashville, TN 37208 (United States); Burger, A. [Department of Physics, Fisk University, 1000, 17 Avenue North, Nashville, TN 37208 (United States); Department of Engineering Norfolk State University, 700 Park Avenue, Norfolk, VA 23504 (United States)

2008-10-23T23:59:59.000Z

164

Fluorescent CdSe/ZnS nanocrystal-peptide conjugates for long-term, nontoxic imaging and  

E-Print Network (OSTI)

Fluorescent CdSe/ZnS Nanocrystal-Peptide Conjugates forfluorescent labels, silanized CdSe/ZnS nanocrystal-peptidenuclei of living cells. CdSe/ZnS nanocrystals, or so called

Chen, Fanqing; Gerion, Daniele

2005-01-01T23:59:59.000Z

165

Strain-Dependent Photoluminescence Behavior of CdSe/CdS Nanocrystals with Spherical, Linear, and Branched Topologies  

E-Print Network (OSTI)

emission peak maxima for CdSe/CdS rods of different lengthsfluorescence spectra of bare zb-CdSe dots in a diamond anvilPhotoluminescence Behavior of CdSe/CdS Nanocrystals with

Choi, Charina L.

2010-01-01T23:59:59.000Z

166

Magnetic and electrical properties of layered magnets Tl(Cr,Mn,Co)Se{sub 2}  

Science Conference Proceedings (OSTI)

Tl(Cr,Mn,Co)Se{sub 2} crystals were synthesized at T {approx} 1050 K. X-ray diffraction analysis showed that TlCrSe{sub 2}, TlMnSe{sub 2}, and TlCoSe{sub 2} compounds crystallize in the hexagonal crystal system with the lattice parameters: a = 3.6999 A, c = 22.6901 A, c/a {approx} 6.133, z = 3, {rho}{sub x} = 6.209 g/cm{sup 3}; a = 6.53 A, c = 23.96 A, c/a {approx} 3.669, z = 8, {rho}{sub x} = 6.71 g/cm{sup 3}; and a = 3.747 A, c = 22.772 A, c/a {approx} 6.077, z = 3, {rho}{sub x} = 7.577 g/cm{sup 3}, respectively. Magnetic and electrical studies in the temperature range from 80-400 K showed that TlCrSe{sub 2} is a semiconductor ferromagnet, TlMnSe{sub 2} is a semiconductor antiferromagnet, and TlCoSe{sub 2} is a ferrimagnet with a conductivity characteristic of metals. A rather large deviation in the experimental effective magnetic moment for TlCrSe{sub 2} (3.05 {mu}B) from the theoretical value (3.85 {mu}B) is attributed to two-dimensional magnetic ordering in the paramagnetic region of the noticeably layered ferromagnet TlCrSe{sub 2}. In TlCrSe{sub 2}, a correlation between magnetic and electrical properties was detected.

Veliyev, R. G.; Sadikhov, R. Z.; Kerimova, E. M., E-mail: ekerimova@physics.ab.az; Asadov, Yu. G.; Jabbarov, A. I. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2009-02-15T23:59:59.000Z

167

Expanding the One-Dimensional CdS-CdSe Composition Landscape: Axially Anisotropic CdS{sub 1-x}Se{sub x} Nanorods  

Science Conference Proceedings (OSTI)

We report the synthesis and characterization of CdS{sub 1–x}Se{sub x} nanorods with axial anisotropy. These nanorods were synthesized via single injection of a mixture of trioctylphosphine sulfur and selenium precursors to a cadmium–phosphonate complex at high temperature. Transmission electron microscopy shows nanoparticle morphology changes with relative sulfur and selenium loading. When the synthetic selenium loading is between 5% and 10% of total chalcogenides, the nanorods exhibit pronounced axial anisotropy characterized by a thick “head” and a thin “tail”. The nanorods’ band gap red shifts with increasing selenium loading. X-ray diffraction reveals that CdS{sub 1–x}Se{sub x} nanorods have a wurtzite crystal structure with a certain degree of alloying. High-resolution and energy-filtered transmission electron microscopy and energy-dispersive X-ray spectroscopy confirm the head of the anisotropic nanorods is rich in selenium, whereas the tail is rich in sulfur. Time evolution and mechanistic studies confirm the nanorods form by quick growth of the CdSe-rich head, followed by slow growth of the CdS-rich tail. Metal photodeposition reactions with 575 nm irradiation, which is mostly absorbed by the CdSe-rich segment, show effective electronic communication between the nanorod head and tail segments.

Ruberu, T. Purnima A.; Vela, Javier

2011-06-02T23:59:59.000Z

168

Probing the size and environment induced phase transformation in CdSe quantum dots  

SciTech Connect

The structural and electronic properties of CdSe quantum dots in toluene and drop-casted on Si wafer were investigated by in-situ micro X-ray diffraction, X-ray photoelectron spectroscopy and UV-Vis absorption and emission spectroscopy. The in-situ micro diffraction data show that the CdSe quantum dots capped with TOPO or hexadecylamine (HDA) in toluene exhibit predominantly wurtzite crystal structure, which undergoes a phase transformation to zinc blende crystal structure following drop casting on Si and this phase transition increases with decreasing the size of the CdSe quantum dots. Decreasing the size of quantum dots also increases the Se vacancies that facilitate the phase transformation. The X-ray photoelectron spectra show a systematic increase in the core level binding energies of Cd 3d and Se 3d, the band gap and the Cd/Se ratio as the size of the quantum dots decreases from 6.6nm to 2.1nm. This is attributed to the quantum confinement of CdSe crystallites by the capping ligands in toluene which increases with decreasing the size of the quantum dots. However, drop-casting quantum dots on Si alter the density and arrangement of capping ligands and solvent molecules on the quantum dots which causes significant phase transformation.

Karakoti, Ajay S.; Sanghavi, Shail P.; Nachimuthu, Ponnusamy; Yang, Ping; Thevuthasan, Suntharampillai

2011-11-17T23:59:59.000Z

169

Structure Evolution of CdSe Nanocrystals During Ripening Process Studied by XAFS  

Science Conference Proceedings (OSTI)

The structure evolution of CdSe nanocrystal with different grown sizes (1.9, 2.7 and 3.1 nm, respectively) obtained by size-selective method from colloidal solution is investigated by XAFS. By such purposeful design of samples, we have investigated the isolated ripening process effect on the structure of nanocrystals. The Se K-edge XAFS results of CdSe nanocrystals show that structure disorder of nanocrystal increases from 0.0046 Aa2 to 0.0053 (0.0072) Aa2 while its size grows from 1.9nm to 2.7 (3.1) nm during the ripening growth process. We propose that during ripening process the growth of CdSe nanocyrstal is through the deposition of Cd and Se ions on the surface of CdSe nucleate, and as a consequence, the defects on the nucleate surface lead to larger structural disorder of the resulting CdSe nanocrystal.

Zhang Xinfeng; Wei Feng; Yan Wensheng; Wei Shiqiang [National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029 (China)

2007-02-02T23:59:59.000Z

170

Excitation density distribution in electron-beam-pumped ZnSe semiconductor lasers  

Science Conference Proceedings (OSTI)

The spatial density distribution of the absorbed energy in ZnSe semiconductor lasers excited by electrons with energies from 2 keV to 1 MeV is calculated by the Monte-Carlo method. Approximate analytic expressions determining the absorbed energy of electrons in ZnSe are presented. The pump power threshold in a semiconductor quantum-well ZnSe structure is experimentally determined. The lasing threshold in such structures is estimated as a function of the electron energy. (active media)

Donskoi, E N; Zalyalov, A N; Petrushin, O N; Savel'ev, Yu A; Tarasov, M D; Shigaev, Yu S [Russian Federal Nuclear Center 'All-Russian Scientific Research Institute of Experimental Physics', Sarov, Nizhnii Novgorod Region (Russian Federation); Zhdanova, E V; Zverev, M M; Peregudov, D V [Moscow State Institute of Radio-Engineering, Electronics and Automation (Technical University), Moscow (Russian Federation); Ivanov, S V; Sedova, I V; Sorokin, S V [A.F. Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg (Russian Federation)

2008-12-31T23:59:59.000Z

171

An oleic acid-capped CdSe quantum-dot sensitized solar cell  

SciTech Connect

In this letter, we report an oleic acid (OA)-capped CdSe quantum-dot sensitized solar cell (QDSSC) with an improved performance. The TiO{sub 2}/OA-CdSe photoanode in a two-electrode device exhibited a photon-to-current conversion efficiency of 17.5% at 400 nm. At AM1.5G irradiation with 100 mW/cm{sup 2} light intensity, the QDSSCs based on OA-capped CdSe showed a power conversion efficiency of about 1%. The function of OA was to increase QD loading, extend the absorption range and possibly suppress the surface recombination.

Chen Jing [School of Electronic Science and Engineering, Southeast University, Nanjing 210096 (China); School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798 (Singapore); Song, J. L.; Deng, W. Q. [Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Science, Nanyang Technological University, Singapore 637616 (Singapore); Sun, X. W. [School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798 (Singapore); Institute of Microelectronics, 11 Science Park Road, Science Park II, Singapore 117685 (Singapore); Jiang, C. Y. [Institute of Microelectronics, 11 Science Park Road, Science Park II, Singapore 117685 (Singapore); Lei, W. [School of Electronic Science and Engineering, Southeast University, Nanjing 210096 (China); Huang, J. H.; Liu, R. S. [Department of Chemistry, National Taiwan University, Taipei 106, Taiwan (China)

2009-04-13T23:59:59.000Z

172

New Thin Film CuGaSe2/Cu(In,Ga)Se2 Bifacial, Tandem Solar Cell with Both Junctions Formed Simultaneously  

Science Conference Proceedings (OSTI)

Thin films of CuGaSe2 and Cu(In,Ga)Se2 were evaporated by the 3-stage process onto opposite sides of a single piece of soda-lime glass, coated bifacially with an n+/-TCO. Junctions were formed simultaneously with each of the p-type absorbers by depositing thin films of n-CdS via chemical bath deposition (CBD) at 60C. The resulting four-terminal device is a non-mechanically stacked, two-junction tandem. The unique growth sequence protects the temperature-sensitive p/n junctions. The initial device (h= 3.7%, Voc= 1.1 V[AM1.5]) suffered from low quantum efficiencies. Initial results are also presented from experiments with variations in growth sequence and back reflectors.

Young, D. L.; Abu-Shama, J.; Noufi, R.; Li, X.; Keane, J.; Gessert, T. A.; Ward, J. S.; Contreas, M.; Symko-Davies, M.; Coutts, T. J.

2002-05-01T23:59:59.000Z

173

Nicaragua-San Jacinto-Tizate Geothermal Power Project | Open...  

Open Energy Info (EERE)

Geothermal Power Project AgencyCompany Organization Inter-American Development Bank Sector Energy Focus Area Renewable Energy, Geothermal Topics Background analysis...

174

Nicaragua - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA)

US EIA provides data, forecasts, country analysis brief and other analyses, focusing on the energy industry including oil, natural gas and electricity.

175

Integrated: Geospatial Toolkit GIS data for Nicaragua from NREL...  

Open Energy Info (EERE)

that can be used for decision making and policy analysis in addition to planning for future energy projects. The SWERA application utilizes Geographical Information Systems...

176

Non-H{sub 2}Se, ultra-thin CuInSe{sub 2} devices. Annual subcontract report, November 10, 1992--November 9, 1993  

DOE Green Energy (OSTI)

This report describes advances made during Phase II (November 10, 1992-November 9, 1993) of a three-phase, cost-shared subcontract whose ultimate goal is the demonstration of thin film CuInSe{sub 2} photovoltaic modules prepared by methods adaptable to safe, high yield, high volume manufacturing. At the end of Phase I, EPV became one of the first groups to clear the 10% efficiency barrier for CIS cells prepared by non-H{sub 2}Se selenization. During Phase II a total area efficiency of 12.5% was achieved for a 1 cm{sup 2} cell. The key achievement of Phase II was the production of square foot CIS modules without the use of H{sub 2}Se. This is seen as a crucial step towards the commercialization of CIS. Using a novel interconnect technology, EPV delivered an 8.0% aperture area efficiency mini-module and a 6.2% aperture area efficiency 720 cm{sub 2} module to NREL. On the processing side, advances were made in precursor formation and the selenization profile, both of which contributed to higher quality CIS. The higher band gap quaternary chalcopyrite material CuIn(S{sub x}, Se{sub 1{minus}X}){sub 2} was prepared and 8% cells were fabricated using this material. Device analysis revealed a correlation between long wavelength quantum efficiency and the CIS Cu/In ratio. Temperature dependent studies highlighted the need for high V{sub OC} devices to minimize the impact of the voltage drop at operating temperature. Numerical modeling of module performance was performed in order to identify the correct ZnO sheet resistance for modules. Efforts in Phase III will focus on increase of module efficiency to 9-10%, initiation of an outdoor testing program, preparation of completely uniform CIS plates using second generation selenization equipment, and exploration of alternative precursors for CIS formation.

Delahoy, A.E.; Britt, J.; Faras, F.; Kiss, Z. [Energy Photovoltaics, Inc., Princeton, NY (United States)

1994-09-01T23:59:59.000Z

177

Hidden Superlattice in Tl2(SC6H4S) and Tl2(SeC6H4Se) Solved from Powder X-ray Diffraction  

SciTech Connect

The crystal structures of the isostructural title compounds poly[({mu}-benzene-1,4-dithiolato)dithallium], Tl{sub 2}(SC{sub 6}H{sub 4}S), and poly[({mu}-benzene-1,4-diselenolato)dithallium], Tl{sub 2}(SeC{sub 6}H{sub 4}Se), were solved by simulated annealing from high-resolution synchrotron X-ray powder diffraction. Rietveld refinements of an initial structure with one formula unit per triclinic cell gave satisfactory agreement with the data, but led to a structure with impossibly close non-bonded contacts. A disordered model was proposed to alleviate this problem, but an alternative supercell structure leads to slightly improved agreement with the data. The isostructural superlattice structures were confirmed for both compounds through additional data collection, with substantially better counting statistics, which revealed the presence of very weak superlattice peaks not previously seen. Overall, each structure contains Tl-S or Tl-Se two-dimensional networks, connected by phenylene bridges. The sulfur (or selenium) coordination sphere around each thallium is a highly distorted square pyramid or a 'see-saw' shape, depending upon how many Tl-S or Tl-Se interactions are considered to be bonds. In addition, the two compounds contain pairs of Tl{sup I} ions that interact through a closed-shell 'thallophilic' interaction: in the sulfur compound there are two inequivalent pairs of Tl atoms with Tl-Tl distances of 3.49 and 3.58 {angstrom}, while in the selenium compound those Tl-Tl interactions are at 3.54 and 3.63 {angstrom}.

K Stone; D Turner; M Singh; T Vaid; P Stephens

2011-12-31T23:59:59.000Z

178

American Ref-Fuel of SE CT Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

American Ref-Fuel of SE CT Biomass Facility American Ref-Fuel of SE CT Biomass Facility Jump to: navigation, search Name American Ref-Fuel of SE CT Biomass Facility Facility American Ref-Fuel of SE CT Sector Biomass Facility Type Municipal Solid Waste Location New London County, Connecticut Coordinates 41.5185189°, -72.0468164° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.5185189,"lon":-72.0468164,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

179

Arçelik A.Åž: Compliance Determination (2010-SE-0105) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Arçelik A.Ş: Compliance Determination (2010-SE-0105) Arçelik A.Ş: Compliance Determination (2010-SE-0105) Arçelik A.Ş: Compliance Determination (2010-SE-0105) August 30, 2010 DOE issued a Notice of Compliance Determination after test results revealed that Arçelik's Blomberg BRFB1450 refrigerator-freezer complies with the applicable energy conservation standards. DOE reviewed test results from Arçelik and also performed DOE testing on four units of the product. The DOE had issued a subpoena for information and production of documents requesting test data from Arçelik A.Ş, after DOE received information indicating that Arçelik's Blomberg BRFB1450 model refrigerator-freezer exceeds the applicable Federal energy conservation standards. Arçelik A.Ş: Compliance Determination (2010-SE-0105) More Documents & Publications

180

AeroSys: Noncompliance Determination (2010-SE-0302) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Noncompliance Determination (2010-SE-0302) Noncompliance Determination (2010-SE-0302) AeroSys: Noncompliance Determination (2010-SE-0302) April 13, 2010 DOE issued a Notice of Noncompliance Determination to AeroSys, Inc. finding that basic model THDC-24SG does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. AeroSys must immediately notify each person (or company) to whom AeroSys distributed the noncompliant product that the product does not meet Federal standards. In addition, AeroSys must provide to DOE documents and records showing the number of units AeroSys distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties. AeroSys: Noncompliance Determination (2010-SE-0302)

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Memorandum of Understanding (MOU) between DOE, Northern Pass and SE Group -  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Memorandum of Understanding (MOU) between DOE, Northern Pass and SE Memorandum of Understanding (MOU) between DOE, Northern Pass and SE Group - August 12, 2011 Memorandum of Understanding (MOU) between DOE, Northern Pass and SE Group - August 12, 2011 August 12, 2011 - 2:20pm Addthis The Department of Energy (DOE) has selected an integrated team of professionals from three environmental consulting firms to prepare the DOE Environmental Impact Statement (EIS) addressing the Northern Pass Presidential Permit application and signed a Memorandum of Understanding with the group. Addthis Related Articles Departments of State and Energy Establish Global Partnership to Green U.S. Embassies and Consulates Memorandum of Understanding (MOU) between DOE, Northern Pass and SE Group - August 12, 2011 DOE and FWS Sign New MOU on Migratory Bird Protection

182

High-temperature Thermoelectric Properties of Ag2Se.5Te.5  

Science Conference Proceedings (OSTI)

Symposium, Alloys and Compounds for Thermoelectric and Solar Cell Applications II ... This particular alloy displays very low thermal conductivity and competitive ... of Cu2ZnSn(S,Se)4 Thin-films with Conversion Efficiency Higher Than 8%.

183

PHaSE | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Text Size: A A A RSS Feeds FeedbackShare Page Polymer-Based Materials for Harvesting Solar Energy (PHaSE) Director(s): Thomas P. Russell and Paul M. Lahti Lead Institution:...

184

Time resolved fluorescence of CdSe nanocrystals using single molecule spectroscopy  

E-Print Network (OSTI)

A wide variety of spectroscopic studies of CdSe nanocrystals (NCs) are presented in this thesis, all studying some aspect of the temporal evolution of NC fluorescence tinder different conditions. In particular the methods ...

Fisher, Brent R

2005-01-01T23:59:59.000Z

185

Understanding and engineering the photophysics of single CdSe nanocrystals  

E-Print Network (OSTI)

This thesis focuses on uncovering the photophysics of CdSe semiconductor quantum dots (QDs) at the single QD level, and correlating the phenomenological behavior observed at the single QD level to that observed at the ...

Chung, Inhee, 1976-

2004-01-01T23:59:59.000Z

186

Preparation of DNA-Functionalised CdSe/ZnS Quantum Dots  

E-Print Network (OSTI)

We functionalised core-shell CdSe/ZnS quantum dots (QDots) with short-chain 3-mercaptopropionic acid (3MPA) to render these nanocrystalline semiconductor water-soluble. The ligand-exchange reaction was significantly improved ...

Pong, Boon Kin

187

Interband and intraband optical studies of CdSe colloidal nanocrystal films  

E-Print Network (OSTI)

We present results for optical measurements on charged CdSe nanocrystals. The injection of electrons into quantum confined states is confirmed by monitoring changes in the visible and infrared absorption spectra. Interestingly, ...

Toyama, Fumiaki, 1977-

2004-01-01T23:59:59.000Z

188

Mechanical properties of highly oriented FeSe0.5Te0.5 superconductor  

Science Conference Proceedings (OSTI)

We have synthesized highly oriented samples of the superconducting compound FeSe0.5Te0.5 and investigated its mechanical properties. These samples were characterized by scanning electron microscopy(SEM) with energy-dispersive analysis

Jorge Luiz Pimentel Júnior; Paulo Pureur; Cristiano Santos Lopes; Francisco Carlos Serbena; Carlos Eugênio Foerster; Simone Aparecida da Silva; Alcione Roberto Jurelo; Adilson Luiz Chinelatto

2012-01-01T23:59:59.000Z

189

Development of a Diffusion Mobility Database for Cu-In-Se  

Science Conference Proceedings (OSTI)

... ? (Cu) 0.545 (Cu,In) 0.122 (In) 0.333 ?3 stoichiometric phases: • ? (Cu ... In in Se In in In Page 21. Modeling of Stoichiometric Intermetallic Phases ...

2012-10-04T23:59:59.000Z

190

Unique Challenges Accompany Thick-Shell CdSe/nCdS (n > 10) Nanocrystal Synthesis  

SciTech Connect

Thick-shell CdSe/nCdS (n {ge} 10) nanocrystals were recently reported that show remarkably suppressed fluorescence intermittency or 'blinking' at the single-particle level as well as slow rates of Auger decay. Unfortunately, whereas CdSe/nCdS nanocrystal synthesis is well-developed up to n {le} 6 CdS monolayers (MLs), reproducible syntheses for n {ge} 10 MLs are less understood. Known procedures sometimes result in homogeneous CdS nucleation instead of heterogeneous, epitaxial CdS nucleation on CdSe, leading to broad and multimodal particle size distributions. Critically, obtained core/shell sizes are often below those desired. This article describes synthetic conditions specific to thick-shell growth (n {ge} 10 and n {ge} 20 MLs) on both small (sub2 nm) and large (>4.5 nm) CdSe cores. We find added secondary amine and low concentration of CdSe cores and molecular precursors give desired core/shell sizes. Amine-induced, partial etching of CdSe cores results in apparent shell-thicknesses slightly beyond those desired, especially for very-thick shells (n {ge} 20 MLs). Thermal ripening and fast precursor injection lead to undesired homogeneous CdS nucleation and incomplete shell growth. Core/shells derived from small CdSe (1.9 nm) have longer PL lifetimes and more pronounced blinking at single-particle level compared with those derived from large CdSe (4.7 nm). We expect our new synthetic approach will lead to a larger throughput of these materials, increasing their availability for fundamental studies and applications.

Guo, Y; Marchuk, K; Abraham, R; Sampat, S; Abraham, R.; Fang, N; Malko, AV; Vela, J

2011-12-23T23:59:59.000Z

191

Efficient cw lasing in a Cr{sup 2+}:CdSe crystal  

Science Conference Proceedings (OSTI)

Continuous wave lasing in a Cr{sup 2+}:CdSe crystal is obtained for the first time. The Cr{sup 2+}:CdSe crystal pumped by a 1.908-{mu}m thulium fibre laser generated 1.07 W at 2.623 {mu}m with the quantum slope efficiency with respect to the absorbed power equal to 60%. (letters)

Akimov, V A [Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region (Russian Federation); Kozlovskii, V I; Korostelin, Yu V; Landman, A I; Podmar'kov, Yu P; Skasyrsky, Ya K; Frolov, M P [P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2007-11-30T23:59:59.000Z

192

Novel Approaches to Wide Bandgap CuInSe2 Based Absorbers  

SciTech Connect

This project targeted the development of high performance wide bandgap solar cells based on thin film alloys of CuInSe2 to relax constraints on module design and enable tandem solar cell structures. This addressed goals of the Solar Energy Technologies Program for Next Generation PV to develop technology needed for higher thin film module efficiency as a means to reduce costs. Specific objectives of the research project were: 1) to develop the processes and materials required to improve the performance of wide bandgap thin film solar cells based on alloys of CuInSe2, and 2) to provide the fundamental science and engineering basis for the material, electronic, and device properties required to effectively apply these processes and materials to commercial manufacture. CuInSe2-based photovoltaics have established the highest efficiencies of the thin film materials at both the cell and module scales and are actively being scaled up to commercialization. In the highest efficiency cells and modules, the optical bandgap, a function of the CuInSe2-based alloy composition, is relatively low compared to the optimum match to the solar spectrum. Wider bandgap alloys of CuInSe2 produce higher cell voltages which can improve module performance and enable the development of tandem solar cells to boost the overall efficiency. A focus for the project was alloying with silver to form (AgCu)(InGa)Se2 pentenary thin films deposited by elemental co-evaporation which gives the broadest range of control of composition and material properties. This alloy has a lower melting temperature than Ag-free, Cu-based chalcopyrite compounds, which may enable films to be formed with lower defect densities and the (AgCu)(InGa)Se2 films give improved material properties and better device performance with increasing bandgap. A comprehensive characterization of optical, structural, and electronic properties of (AgCu)(InGa)Se2 was completed over the complete compositional range 0 ? Ga/(In+Ga) ? 1 and 0 ? Ag/(Ag+Cu) ? 1. Evidence of improved material quality includes reduced sub-bandgap optical absorption, sharper bandtails, and increased grain size with Ag addition. The Ag alloying was shown to increase the range of bandgaps over which solar cells can be fabricated without any drop-off in performance. With bandgap greater than 1.6 eV, in the range needed for tandem solar cells, (AgCu)(InGa)Se2 gave higher efficiency than other CuInSe2-based alloys. Using a simple single-stage co-evaporation process, a solar cell with 17.6% efficiency using a film with bandgap = 1.3 eV was achieved, demonstrating the viability of (AgCu)(InGa)Se2 for high efficiency devices. With a three-stage co-evaporation process for (AgCu)(InGa)Se2 deposition a device with efficiency = 13.0 % and VOC = 890 mV with JSC = 20.5 mA/cm2, FF = 71.3% was achieved. This surpasses the performance of other wide bandgap CuInSe2-based solar cells. Detailed characterization of the electronic properties of the materials and devices including the application of advanced admittance-based easements was completed.

William N. Shafarman

2011-04-28T23:59:59.000Z

193

¿A dónde se va la energía?  

NLE Websites -- All DOE Office Websites (Extended Search)

¿A dónde se va la energía? ¿A dónde se va la energía? Sólo aproximadamente el 14% -26% de la energía del combustible que usted pone en su tanque se usa para mover su coche o operar accesorios útiles, como el aire acondicionado. El resto de la energía es perdida en ineficiencias del motor, de la líínea de conducción y al estar a ralentí. Por lo tanto, el potencial para mejorar la eficiencia del combustible con tecnologías avanzadas es enorme. Combinadas Ciudad Carretera Conducir en Ciudad Los requerimientos de energía mostrados en el diagrama se calcularon conduciendo por la ciudad en el modo para-avanzar usando el procedimiento de la EPA FTP-75 Test. Perdidas de Motor En vehículos propulsados por gasolina, gran parte de la energía del combustible se pierde en el motor, primordialmente al calentarse. Pequeñas

194

Absorption and spectra of optical parameters in amorphous solid solutions of the Se-S system  

Science Conference Proceedings (OSTI)

A study of the optical properties of the Se-S system has revealed a correlation between the dependences of optical absorption coefficient {alpha}, effective concentration of charged defects N{sub t}, and characteristic energy E{sub 0} corresponding to the Urbach optical absorption in the spectral region where the Urbach rule works for the Se-S system on the S concentration. These optical properties are controlled by charged defects. It is shown that concentrations of intrinsic charged defects can be changed by variation in composition of the Se-S system. Reflectance spectra of amorphous solid solutions of the Se-S system are studied within the energy range 1-6 eV. Using the Kramers-Kronig method, spectral dependences of optical constants and derivative optical and dielectric functions are calculated. Variation in the spectra of optical parameters with composition of the Se-S system are explained within a cluster model in which the density of electron states is a function of atomic configurations in clusters, i.e., of the character of a short-range order.

Djalilov, N. Z.; Damirov, G. M., E-mail: gafil@phytsics.ab.az [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2011-04-15T23:59:59.000Z

195

V-181: Oracle Java SE Critical Patch Update Advisory - June 2013 |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1: Oracle Java SE Critical Patch Update Advisory - June 2013 1: Oracle Java SE Critical Patch Update Advisory - June 2013 V-181: Oracle Java SE Critical Patch Update Advisory - June 2013 June 19, 2013 - 1:06am Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory - June 2013 PLATFORM: Version(s): 5.0 Update 45, 6 Update 45, 7 Update 21; and prior versions ABSTRACT: Multiple vulnerabilities were reported in Oracle Java. REFERENCE LINKS: Oracle Java SE Critical Patch Update June 2013 SecurityTracker Alert ID: 1028679 CVE-2013-1500, CVE-2013-1571 CVE-2013-2400, CVE-2013-2407 CVE-2013-2412, CVE-2013-2437 CVE-2013-2442, CVE-2013-2443 CVE-2013-2444, CVE-2013-2445 CVE-2013-2446, CVE-2013-2447 CVE-2013-2448, CVE-2013-2449 CVE-2013-2450, CVE-2013-2451 CVE-2013-2452, CVE-2013-2453 CVE-2013-2454, CVE-2013-2455 CVE-2013-2456, CVE-2013-2457

196

T-558: Oracle Java SE and Java for Business Critical Patch Update Advisory  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8: Oracle Java SE and Java for Business Critical Patch Update 8: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011 T-558: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011 February 16, 2011 - 7:00am Addthis PROBLEM: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011. PLATFORM: JDK and JRE 6 Update 23 and earlier for Windows, Solaris, and Linux JDK 5.0 Update 27 and earlier for Solaris 9 SDK 1.4.2_29 and earlier for Solaris 8 JDK and JRE 6 Update 23 and earlier for Windows, Solaris and Linux JDK and JRE 5.0 Update 27 and earlier for Windows, Solaris and Linux SDK and JRE 1.4.2_29 and earlier for Windows, Solaris and Linux ABSTRACT: This Critical Patch Update contains 21 new security fixes for Oracle Java SE and Java for Business. 19 of these vulnerabilities may be remotely

197

Luminescence of CdSe/ZnS quantum dots infiltrated into an opal matrix  

SciTech Connect

The effect of the photonic band gap in the photonic crystal, the synthesized SiO{sub 2} opal with embedded CdSe/ZnS quantum dots, on its luminescence in the visible spectral region is studied. It is shown that the position of the photonic band gap in the luminescence and reflectance spectra for the infiltrated opal depends on the diameter of the constituent nanospheres and on the angle of recording the signal. The optimal conditions for embedding the CdSe/ZnS quantum dots from the solution into the opal matrix are determined. It is found that, for the opal-CdSe/ZnS nanocomposites, the emission intensity decreases and the luminescence decay time increases in the spatial directions, in which the spectral positions of the photonic band gap and the luminescence peak of the quantum dots coincide.

Gruzintsev, A. N. [Russian Academy of Sciences, Institute of Microelectronics Technology and Ultra-High-Purity Materials (Russian Federation)], E-mail: gran@ipmt-hpm.ac.ru; Emelchenko, G. A.; Masalov, V. M. [Russian Academy of Sciences, Institute of Solid State Physics (Russian Federation); Yakimov, E. E. [Russian Academy of Sciences, Institute of Microelectronics Technology and Ultra-High-Purity Materials (Russian Federation); Barthou, C.; Maitre, A. [Institut des NanoSciences (France)

2009-02-15T23:59:59.000Z

198

Formation of phases in the films of a Ag-In-Se system  

Science Conference Proceedings (OSTI)

Processes of electron-diffraction structure analysis have been used to study the processes of phase formation and phase transitions in thin layers of a Ag-In-Se system. The phases formed at the onset of interaction between the films and phase transformations occurring during annealing of the samples in vacuum are established. It is found that thin films of the AgInSe{sub 2} compound formed as a result of simultaneous or consecutive deposition of components are amorphous, and crystallization brings about the formation of textured films with high structural quality

Ismayilov, D. I.; Kerimova, N. K., E-mail: kerimova-nurlana@mail.ru [Azerbaijan National Academy of Sciences, Institute of Physics (Azerbaijan)

2009-09-15T23:59:59.000Z

199

Wet chemical synthesis and characterization of AgGaSe{sub 2} nanoparticles  

SciTech Connect

AgGaSe{sub 2} compound semiconductor nanoparticles were synthesized by wet chemical method using mercaptoacetic acid as a capping agent at room temperature. The synthesized powders belong to chalcopyrite structure confirmed by powder XRD. The surface morphology and crystalline size were observed by high resolution scanning electron microscope (HR-SEM). The stoichiometric composition of AgGaSe{sub 2} nanoparticles was confirmed by Energy dispersive X-ray (EDX) analysis. Different functional group vibrations of mercaptoacetic acid capped nanoparticles were studied using FT-IR spectrum. The absorbance and optical bandgap of the nanoparticles were determined using diffuse reflectance spectroscopy (DRS).

Sugan, S.; Dhanasekaran, R. [Crystal Growth Centre, Anna University, Chennai- 600 025 (India)

2013-06-03T23:59:59.000Z

200

Investigations of CuInSe sub 2 thin films and contacts  

DOE Green Energy (OSTI)

This report describes research into electrical contacts for copper indium diselenide (CuInSe{sub 2}) polycrystalline thin films used for solar cell applications. Molybdenum contacts have historically been the most promising for heterojunction solar cells. This program studied contact stability by investigating thermally induced bilayer reactions between molybdenum and copper, indium, and selenium. Because selenization is widely used to fabricate CuInSe{sub 2} thin films for photovoltaic cells, a second part of the program investigated how the morphologies, phases, and reactions of pre-selenization Cu-In structures are affected by the deposition process and heat treatments. 7 refs., 6 figs.

Nicolet, M.A. (California Inst. of Tech., Pasadena, CA (United States))

1991-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Preparation and investigation of the quaternary alloy CuTaInSe{sub 3}  

Science Conference Proceedings (OSTI)

Polycrystalline samples of the quaternary alloy CuTaInSe{sub 3} were prepared by the usual melt and anneal technique. The analysis of the diffraction pattern indicates a single phase which indexes as a tetragonal chalcopyrite-like structure with lattice parameters a = 5.7837 {+-} 0.0002 A; c = 11.6208 {+-} 0.0007 A and V = 389 {+-} 1 A{sup 3}. Differential thermal analysis shows that the melting transition of CuTaInSe{sub 3} is incongruent with large liquid + solids regions.

Grima-Gallardo, P. [Centro de Estudios en Semiconductores (CES), Dpto. Fisica, Facultad de Ciencias, La Hechicera, Merida (Venezuela)], E-mail: peg@ula.ve; Munoz, M.; Duran, S. [Centro de Estudios en Semiconductores (CES), Dpto. Fisica, Facultad de Ciencias, La Hechicera, Merida (Venezuela); Delgado, G.E. [Laboratorio de Cristalografia, Dpto. Quimica, Facultad de Ciencias, Universidad de Los Andes, Merida 5101 (Venezuela); Quintero, M.; Ruiz, J. [Centro de Estudios en Semiconductores (CES), Dpto. Fisica, Facultad de Ciencias, La Hechicera, Merida (Venezuela)

2007-12-04T23:59:59.000Z

202

DEPENDENCE OF BAND GAP ON DEPOSITION PARAMETERS IN CdSe SINTERED FILMS  

E-Print Network (OSTI)

II-VI semiconductors form an important class of opto-electronic materials. CdSe is a promising material for the fabrication of photovoltaic devices. Polycrystalline CdSe films have been deposited onto ultra clean glass substrates by sintering process. The optical band gap of these films was determined by reflectance measurements in wavelength range 400-850 nm. The band gap of these films was observed to increase with increase in sintering temperature and sintering time separately. The crystal structure and lattice parameter of these films were determined from x-ray diffractograms. The films were polycrystalline in nature having cubic zinc blende structure.

unknown authors

2008-01-01T23:59:59.000Z

203

Confinement in PbSe wires grown by rf magnetron sputtering  

SciTech Connect

Lead selenide (PbSe) nanowires were grown by magnetron sputtering on silicon with silicon dioxide (SiO{sub 2}/Si) substrates, and characterized by scanning electron microscopy, x-ray diffraction, Fourier transform infrared spectroscopy, photoluminescence, and x-ray photoelectron spectroscopy. Closely packed PbSe nanowires of approximately 100 nm diameter grew in the <111> rock-salt cubic structure orientation. These large wires showed a large blueshift in the luminescence and absorption compared to the bulk crystal, demonstrating quantum confinement. This is attributed to a strong built-in field due to surface states, band bending, and a depletion layer which confines the carrier states.

Jung, Hyeson; Kuljic, Rade [Department of Electrical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607 (United States); Stroscio, Michael A. [Department of Electrical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607 (United States); Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607 (United States); Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607 (United States); Dutta, Mitra [Department of Electrical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607 (United States); Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607 (United States)

2010-04-12T23:59:59.000Z

204

Method of fabricating high-efficiency Cu(In,Ga)(Se,S){sub 2} thin films for solar cells  

DOE Patents (OSTI)

A process for producing a slightly Cu-poor thin film of Cu(In,Ga)(Se,S){sub 2} comprises depositing a first layer of (In,Ga){sub x} (Se,S){sub y} followed by depositing just enough Cu+(Se,S) or Cu{sub x} (Se,S) to produce the desired slightly Cu-poor material. In a variation, most, but not all, (about 90 to 99%) of the (In,Ga){sub x} (Se,S){sub y} is deposited first, followed by deposition of all the Cu+(Se,S) or Cu{sub x} (Se,S) to go near stoichiometric, possibly or even preferably slightly Cu-rich, and then in turn followed by deposition of the remainder (about 1 to 10%) of the (In,Ga){sub x} (Se,S){sub y} to end with a slightly Cu-poor composition. In yet another variation, a small portion (about 1 to 10%) of the (In,Ga){sub x} (Se,S){sub y} is first deposited as a seed layer, followed by deposition of all of the Cu+(Se,S) or Cu{sub x} (Se,S) to make a very Cu-rich mixture, and then followed deposition of the remainder of the (In,Ga){sub x} (Se,S){sub y} to go slightly Cu-poor in the final Cu(In,Ga)(Se,S){sub 2} thin film. 5 figs.

Noufi, R.; Gabor, A.M.; Tuttle, J.R.; Tennant, A.L.; Contreras, M.A.; Albin, D.S.; Carapella, J.J.

1995-08-15T23:59:59.000Z

205

Method of fabricating high-efficiency Cu(In,Ga)(SeS).sub.2 thin films for solar cells  

DOE Patents (OSTI)

A process for producing a slightly Cu-poor thin film of Cu(In,Ga)(Se,S).sub.2 comprises depositing a first layer of (In,Ga).sub.x (Se,S).sub.y followed by depositing just enough Cu+(Se,S) or Cu.sub.x (Se,S) to produce the desired slightly Cu-poor material. In a variation, most, but not all, (about 90 to 99%) of the (In,Ga).sub.x (Se,S).sub.y is deposited first, followed by deposition of all the Cu+(Se,S) or Cu.sub.x (Se,S) to go near stoichiometric, possibly or even preferably slightly Cu-rich, and then in turn followed by deposition of the remainder (about 1 to 10%) of the (In,Ga).sub.x (Se,S).sub.y to end with a slightly Cu-poor composition. In yet another variation, a small portion (about 1 to 10%) of the (In,Ga).sub.x (Se,S).sub.y is first deposited as a seed layer, followed by deposition of all of the Cu+(Se,S) or Cu.sub.x (Se,S) to make a very Cu-rich mixture, and then followed deposition of the remainder of the (In,Ga).sub.x (Se,S).sub.y to go slightly Cu-poor in the final Cu(In,Ga)(Se,S).sub.2 thin film.

Noufi, Rommel (Golden, CO); Gabor, Andrew M. (Boulder, CO); Tuttle, John R. (Denver, CO); Tennant, Andrew L. (Denver, CO); Contreras, Miguel A. (Golden, CO); Albin, David S. (Denver, CO); Carapella, Jeffrey J. (Evergreen, CO)

1995-01-01T23:59:59.000Z

206

Photoconductivity and luminescence in GaSe crystals at high levels of optical excitation  

Science Conference Proceedings (OSTI)

The photoconductivity and luminescence of GaSe layered crystals at high levels of optical excitation are studied experimentally. The specific features observed in the photoconductivity and photoluminescence spectra are controlled by the nonlinear optical absorption in the region of excitonic resonance.

Kyazym-zade, A. G.; Salmanov, V. M., E-mail: vagif_salmanov@yahoo.com; Salmanova, A. A. [Baku State University (Azerbaijan); Alieva, A. M.; Ibaeva, R. Z. [National Academy of Sciences, Institute of Physics (Azerbaijan)

2010-03-15T23:59:59.000Z

207

Performances of a large mass ZnSe bolometer to search for rare events  

E-Print Network (OSTI)

Scintillating bolometers of ZnSe are the baseline choice of the LUCIFER experiment, whose aim is to observe the neutrinoless double beta decay of 82Se. The independent read-out of the heat and scintillation signals allows to identify and reject alpha particle interactions, the dominant background source for bolometric detectors. In this paper we report the performances of a ZnSe crystal operated within the LUCIFER R&D. We measured the scintillation yield, the energy resolution and the background in the energy region where the signal from neutrinoless double beta decay of 82Se is expected with an exposure of 9.4 kg x days. With a newly developed analysis algorithm we improved the rejection of alpha events, and we estimated the increase in energy resolution obtained by the combination of the heat and light signals. For the first time we measured the light emitted by nuclear recoils, and found it to be compatible with zero. We conclude that the discrimination of nuclear recoils from beta/gamma interactions in the WIMPs energy region is possible, but low-noise light detectors are needed.

J. W. Beeman; F. Bellini; L. Cardani; N. Casali; I. Dafinei; S. Di Domizio; F. Ferroni; L. Gironi; A. Giuliani; S. Nagorny; F. Orio; L. Pattavina; G. Pessina; G. Piperno; S. Pirro; E. Previtali; C. Rusconi; C. Tomei; M. Vignati

2013-03-17T23:59:59.000Z

208

ZnSe nanorods prepared in hydroxide-melts and their application as a humidity sensor  

Science Conference Proceedings (OSTI)

We have synthesized the crystalline ZnSe nanorods for the first time using the molten hydroxides as reaction solvent in the absence of organic dispersant or capping agents. The products are characterized by X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy. The diameters of ZnSe nanorods are about 200-300 nm, and the lengths are about 1-2 {mu}m. Humidity sensors based on ZnSe nanorods are fabricated and their responsiveness to humidity on static and dynamic testing are investigated. The change of resistance is about three orders of magnitude as the relative humidity increases from 20% to 85%. The response time and recovery time is 50 s and 81 s versus the changes of relative humidity from 20% to 85% and from 85% to 20%, respectively. Our sensor offers higher sensitivity, as well as much better stability and reproducibility than the humidity sensor of ZnSe nanostructure reported before.

Yan Wei [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China); Hu Chenguo, E-mail: hucg@cqu.edu.cn [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China); Xi Yi; Wan Buyong; He Xiaoshan; Zhang Michao; Zhang Yan [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China)

2009-06-03T23:59:59.000Z

209

Entanglement in GaAs and CdSe quantum dots: Exact calculations and DFT approximations  

Science Conference Proceedings (OSTI)

We consider two electrons confined in spherical GaAs and CdSe quantum dots and calculate their ground-state spatial entanglement exactly within a parabolic confinement model. We propose a perturbative scheme to approximate the above entanglement within ... Keywords: Density-functional theory, Entanglement, Quantum dots, Quantum information, Semiconductors

J. P. Coe; A. Sudbery; I. D'Amico

2009-03-01T23:59:59.000Z

210

Photoelectrochemical properties of spray deposited n-CdSe thin films  

SciTech Connect

Polycrystalline cadmium selenide (CdSe) thin films have been prepared by spraying a mixture of an equimolar aqueous solutions of cadmium chloride and selenourea on preheated fluorine doped tin oxide (FTO) coated glass substrates at different substrate temperatures. The cell configuration n-CdSe/1 M (NaOH + Na{sub 2}S + S)/C is used for studying the capacitance-voltage (C-V) characteristics in dark, current-voltage (I-V) characteristics in dark and under illumination, photovoltaic power output and spectral response characteristics of the as deposited films. Photoelectrochemical study shows that as deposited CdSe thin films exhibits n-type of conductivity. The spectral response characteristics of the films at room temperature show a prominent sharp peak at 725 nm. The measured values of efficiency ({eta}) and fill factor (FF) are found to be 0.50% and 0.44 respectively for film deposited at 300 C. Electrochemical impedance spectroscopy studies show that the CdSe film deposited at 300 C shows better performance in PEC cell. (author)

Yadav, A.A.; Barote, M.A.; Masumdar, E.U. [Thin Film Physics Laboratory, Department of Physics, Electronics and Photonics, Rajarshi Shahu Mahavidyalaya, Latur 413512, Maharashtra (India)

2010-05-15T23:59:59.000Z

211

Imaging the charge transport in arrays of CdSe nanocrystals  

E-Print Network (OSTI)

A novel method to image charge is used to measure the diffusion coefficient of electrons in films of CdSe nanocrystals at room temperature. This method makes possible the study of charge transport in films exhibiting high resistances or very small diffusion coefficients.

M. Drndic; R. Markov; M. V. Jarosz; M. G. Bawendi; M. A. Kastner; N. Markovic; M. Tinkham

2003-05-29T23:59:59.000Z

212

WindowsMillenniumEdition (Me) Windows98/98SecondEdition(SE)  

E-Print Network (OSTI)

WindowsMillenniumEdition (Me) Windows98/98SecondEdition(SE) Windows2000Professional WindowsXPHomeEdition WindowsXPProfessional Installation Guide Installing Nikon View 4 and Supporting Software Windows software (such as Cumulus) Mac OS Nikon D1 Nikon D1X Nikon D1H Windows Millennium Edition (Me) Windows 98

Kleinfeld, David

213

Spray Deposition of High Quality CuInSe2 and CdTe Films: Preprint  

DOE Green Energy (OSTI)

A number of different ink and deposition approaches have been used for the deposition of CuInSe2 (CIS), Cu(In,Ga)Se2 (CIGS), and CdTe films. For CIS and CIGS, soluble precursors containing Cu, In, and Ga have been developed and used in two ways to produce CIS films. In the first, In-containing precursor films were sprayed on Mo-coated glass substrates and converted by rapid thermal processing (RTP) to In2Se3. Then a Cu-containing film was sprayed down on top of the In2Se3 and the stacked films were again thermally processed to give CIS. In the second approach, the Cu-, In-, and Ga-containing inks were combined in the proper ratio to produce a mixed Cu-In-Ga ink that was sprayed on substrates and thermally processed to give CIGS films directly. For CdTe deposition, ink consisting of CdTe nanoparticles dispersed in methanol was prepared and used to spray precursor films. Annealing these precursor films in the presence of CdCl2 produced large-grained CdTe films. The films were characterized by x-ray diffraction (XRD) and scanning electron microscopy (SEM). Optimized spray and processing conditions are crucial to obtain dense, crystalline films.

Curtis, C. J.; van Hest, M.; Miedaner, A.; Leisch, J.; Hersh, P.; Nekuda, J.; Ginley, D. S.

2008-05-01T23:59:59.000Z

214

A n n u A l Campus seCurity And  

E-Print Network (OSTI)

A n n u A l Campus seCurity And Fire saFety report 2012 #12;Dear UC Santa Cruz Community, UC Santa are primarily responsible for ensuring the safety and security of the UC Santa Cruz community from all hazards in the responsibility of keeping our community safe. As such, we encourage you to read our Annual Campus Security

California at Santa Cruz, University of

215

Structural studies and optical and electrical properties of novel Gd3+-doped Sb2Se3 nanorods  

Science Conference Proceedings (OSTI)

Gd3+-doped Sb2Se3 nanorods were synthesized by coreduction method at 180°C and pH = 12 for 48 h. Powder XRD patterns indicate that the GdxSb2-xSe3 crystals (x ...

Abdolali Alemi; Younes Hanifehpour; Sang Woo Joo; Bong-Ki Min; Tae Hwan Oh

2012-01-01T23:59:59.000Z

216

Investigation of polycrystalline thin film CuInSe{sub 2} solar cells based on ZnSe windows. Annual subcontract report, 15 February, 1993--14 February, 1994  

DOE Green Energy (OSTI)

This report concerns studies of CIS solar cells based on ZnSe window layers. ZnSe/CIS devices are fabricated by growing ZnSe films by MOCVD onto Siemens CIS and graded absorber substrates. ZnSe films are grown by reacting H{sub 2}Se with a zinc adduct. ZnSe/CIS heterojunctions have been studied by depositing transparent aluminum contacts onto ZnSe. These studies indicate that ZnSe/CIS solar cells can be fabricated with an efficiency greater than 14%. Open circuit voltages are typically larger than 500 mV and the optimum range of ZnSe film thickness for maximum efficiency is between 100 {angstrom} and 250 {angstrom}. Photocurrents are significantly reduced as the film thickness exceeds 250 {angstrom}. Photoluminescence spectroscopy has been utilized to characterize the physical nature of CIS substrate surfaces, and ZnSe-CIS interfaces. These studies indicate that a segregated phase(s) exists at the surface of as received Siemens substrates. Additionally, it is determined that the segregated phase(s) still exist after the ZnSe growth process. To date, sputtered ZnO top contact layers have caused degradation of the photovoltaic properties of the ZnSe/CIS structure. Investigations of the effects of MOCVD grown ZnO upon ZnSe/CIS structures will soon be initiated. To establish the feasibility of ZnSe as a window layer, cells have been fabricated by incorporating a protective layer of CdS between the ZnSe and ZnO. A total area efficiency of 11% was obtained with such a structure.

Olsen, L.C. [Washington State Univ., Richland, WA (United States)

1995-03-01T23:59:59.000Z

217

Charging effects in CdSe nanocrystals embedded in SiO2 matrix produced by rf magnetron sputtering  

Science Conference Proceedings (OSTI)

Charging effects in CdSe nanocrystals embedded in SiO"2 matrix fabricated by rf magnetron co-sputtering technique were electrically characterized by means of capacitance-voltage (C-V) combined with current-voltage (I-V). The presence of CdSe nanocrystals ... Keywords: CdSe, Charging effect, Nanocrystals, SiO2

S. Levichev; A. Chahboun; P. Basa; A. G. Rolo; N. P. Barradas; E. Alves; Zs. J. Horvath; O. Conde; M. J. M. Gomes

2008-12-01T23:59:59.000Z

218

Single-peak excitonic emission of CdSe ultra-thin quantum wells finished with fractional monolayers  

Science Conference Proceedings (OSTI)

Ultra-thin quantum wells (UTQWs) of CdSe grown by atomic layer epitaxy (ALE) present very interesting features, such as intense excitonic luminescence and relatively narrow width. Grown under adequate conditions only a single excitonic peak is exhibited ... Keywords: Atomic layer epitaxy (ALE), CdSe, Excitons, II-VI semiconductors, Interface, Photoluminiscence, Ultra-thin quantum wells, ZnSe

Adrián Alfaro-Martínez; Isaac Hernández-Calderón

2008-03-01T23:59:59.000Z

219

Seeded Growth of Highly Luminescent CdSe/CdS Nano-Heterostructures with Rod and Tetrapod Morphologies  

E-Print Network (OSTI)

image of a central part of CdSe/CdS nano-tetrapod showingof toluene solutions of CdSe/CdS nano-tetrapods with 50 nmlong arms grown from 3.6 nm zb-CdSe seeds. Gray line shows

Talapin, Dmitri

2008-01-01T23:59:59.000Z

220

Nanofabrication, Plasmon Enhanced Fluorescence and Photo-oxidation Kinetics of CdSe Nanoparticles  

E-Print Network (OSTI)

Unconventional nanofabrication techniques; both those which have been newly developed and those under development, had brought inexpensive, facile, yet high quality means to fabricate nanostructures that have feature sizes of less than 100 nm in industry and academia. This dissertation focuses on developing unconventional fabrication techniques, building studying platforms, and studying the mechanisms behind them. The studies are divided into two main facets and four chapters. The first facet, in Chapter II and Chapter III, deals with the research and development of different nanofabrication techniques and nanostructures. These techniques include litho-synthesis, colloidal lithography, and photolithography. The nanostructures that were fabricated by these techniques include the metal nanoparticle arrays, and the self-assembled CdSe nanoring arrays. At the same time, the dissertation provides mechanisms and models to describe the physical and chemical nature of these techniques. The second area of this study, in Chapter III to Chapter V, presents the applications of these nanostructures in fundamental studies, i.e. the mechanisms of plasmon enhanced fluorescence and photo-oxidation kinetics of CdSe quantum dots, and applications such as molecular sensing and material fabrication. More specifically, these applications include tuning the optical properties of CdSe quantum dots, biomodification of CdSe quantum dots, and copper ion detection using plasmon and photo enhanced CdSe quantum dots. We have successfully accomplished our research goals in this dissertation. Firstly, we were able to tune the emission wavelength of quantum dots, blue-shifted for up to 45 nm, and their surface functionalization with photo-oxidation. A kinetic model to calculate the photo-oxidation rates was established. Secondly, we established a simple mathematical model to explain the mechanism of plasmon enhanced fluoresce of quantum dots. Our calculation and experimental data support the fluorescence resonance energy transfer (FRET) mechanism between quantum dots and the metal nanoparticles. Thirdly, we successfully pattered the CdSe quantum dots (diameter ~4 nm) into nanorings with tunable diameters and annular sizes on different substrates. We also established a physical model to quantitatively explain the mechanism with the forces that involved in the formation of the nanorings.

Chen, Jixin

2010-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

AeroSys: Noncompliance Determination (2010-CE-01/0201 and 2010-SE-0302) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AeroSys: Noncompliance Determination (2010-CE-01/0201 and AeroSys: Noncompliance Determination (2010-CE-01/0201 and 2010-SE-0302) AeroSys: Noncompliance Determination (2010-CE-01/0201 and 2010-SE-0302) September 27, 2011 DOE issued a Notice of Noncompliance Determination to AeroSys, Inc. finding that basic models THDC-18S, THDC-18T, THDC-24S, and THDC-24T do not comport with the energy conservation standards. DOE determined the products were noncompliant based on DOE testing. AeroSys must immediately notify each person (or company) to whom AeroSys distributed the noncompliant products that the products do not meet Federal standards. In addition, AeroSys must provide to DOE documents and records showing the number of units AeroSys distributed and to whom. The manufacturer and/or private labeler of the product may be subject to civil penalties.

222

Optical transitions in MnGa{sub 2}Se{sub 4}  

Science Conference Proceedings (OSTI)

The dependence of the absorption coefficient on incident photon energy in a MnGa{sub 2}Se{sub 4} single crystal has been investigated in the temperature range 110-295 K. Using group-theory analysis of the electron state symmetry and comparison of the symmetry of the energy spectrum of MnGa{sub 2}Se{sub 4} and its isoelectronic analogs, a conclusion about the character of optical transitions has been drawn. It is shown that the features observed at 2.31 and 2.45 eV are related to the intracenter transitions {sup 6}A{sub 1}{sup 1} {yields} {sup 4}T{sub 2}({sup 4}G) and {sup 6}A{sub 1}{sup 2} {yields} {sup 4}T{sub 2}({sup 4}G). The {sup 6}A{sub 1} state is split by the crystal field.

Tagiev, B. G.; Kerimova, T. G., E-mail: ktaira@physics.ab.az; Tagiev, O. B.; Asadullayeva, S. G.; Mamedova, I. A. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2012-06-15T23:59:59.000Z

223

Low-cost CuInSe[sub 2] submodule development  

DOE Green Energy (OSTI)

Aim of this project is development and demonstration of processing steps necessary for fabrication of high efficiency CuInSe[sub 2] solar cells and sub-modules by the two-stage technique (also called the selenization method.) During this period, we have optimized the processing parameters of this method and demonstrated CuInSe[sub 2]/CdS/ZnO devices with a 1[endash]4 cm[sup 2] area and up to 12.4% active area efficiency. We have also developed a novel approach for the preparation of Cu/In precursors that improved the stoichiometric and morphological uniformity in these films. We have developed processing steps and tooling for handling up to 1 ft[sup 2] size substrates and as a result of these efforts demonstrated our first monolithically integrated sub-module of 1 ft[sup 2] area. 16 figs, 1 tab, 15 refs.

Basol, B.M.; Kapur, V.K.; Halani, A.; Leidholm, C. (International Solar Electric Technology, Inglewood, CA (United States))

1992-10-01T23:59:59.000Z

224

Numerical Simulation of Annealing of CdSe Quantum Dots for White Light LEDs  

Science Conference Proceedings (OSTI)

The pulsed thermal processing (PTP) of CdSe Quantum Dots (QD) using a High Density plasma arc lamp. The single layer of CdSe QD was deposited on sapphire and was encapsulated in an alumina matrix. A computational methodology is proposed to understand the energy transport and annealing of QD material for solid-state lighting applications. It was found that the energy balance in the system was affected by the QD. The QD monolayer of spheres was found to alter the total reflectivity, even though the energy absorbed in QD was relatively small. The numerical simulations can be an effective tool to predict the narrow range of processing parameters and dramatically reduce expensive trial-and-error procedures while enabling the enhanced properties of nanostructured materials to be realized.

Sabau, Adrian S [ORNL; Duty, Chad E [ORNL; Ott, Ronald D [ORNL; Jellison Jr, Gerald Earle [ORNL

2008-01-01T23:59:59.000Z

225

Photoluminescence studies of type-II CdSe/CdTe superlattices  

SciTech Connect

CdSe/CdTe type-II superlattices grown on GaSb substrates by molecular beam epitaxy are studied using time-resolved and steady-state photoluminescence (PL) spectroscopy at 10 K. The relatively long carrier lifetime of 188 ns observed in time-resolved PL measurements shows good material quality. The steady-state PL peak position exhibits a blue shift with increasing excess carrier concentration. Self-consistent solutions of the Schroedinger and Poisson equations show that this effect can be explained by band bending as a result of the spatial separation of electrons and holes, which is critical confirmation of a strong type-II band edge alignment between CdSe and CdTe.

Li Jingjing; Johnson, Shane R.; Wang Shumin; Ding Ding; Ning Cunzheng; Zhang Yonghang [Center for Photonics Innovation, Arizona State University, Tempe, Arizona 85287-5706 (United States); School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe, Arizona 85287-5706 (United States); Yin Leijun [Center for Photonics Innovation, Arizona State University, Tempe, Arizona 85287-5706 (United States); Department of Physics, Arizona State University, Tempe, Arizona 85287-1504 (United States); Skromme, B. J. [School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe, Arizona 85287-5706 (United States); Liu Xinyu; Furdyna, Jacek K. [Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

2012-08-06T23:59:59.000Z

226

Distribution of CdSe nanoparticles synthesized in porous SiO{sub x} matrix  

Science Conference Proceedings (OSTI)

Photoluminescence spectra of CdSe nanoparticles synthesized by the chemical method from an aqueous solution are studied in relation to nanoparticle location over depth in the porous SiO{sub x} layer consisting of a set of distinct SiO{sub x} columns {approx}(10-100) nm in diameter. An analysis of radiative characteristics of this structure shows that the distributions of different-size nanoparticle fractions over the nanocomposite layer depth are different. A model explaining the cause of such distributions is considered. Within this model the parameter defining the 'constrained geometry' notion for the used conditions of CdSe nanoparticles' growth in the SiO{sub x} matrix is estimated.

Bacherikov, Yu. Yu., E-mail: yuyu@isp.kiev.ua; Indutnyi, I. Z.; Okhrimenko, O. B.; Optasyuk, S. V.; Shepeliavyi, P. E.; Ponamarenko, V. V. [National Academy of Sciences, Lashkaryov Institute of Semiconductor Physics (Ukraine)

2011-09-15T23:59:59.000Z

227

Junction Formation in CuInSe{sub 2} Based Thin Film Devices  

DOE Green Energy (OSTI)

The nature of the interface between CuInSe{sub 2} (CIS) and the chemical bath deposited CdS layer has been investigated. We show that heat-treating the absorbers in Cd- or Zn-containing solutions in the presence of ammonium hydroxide sets up a chemical reaction which facilitates an extraction of Cu from the lattice and an in-diffusion of Cd. The characteristics of devices made in this manner suggest that the reaction generates a thin, n-doped region in the absorber. It is quite possible that the CdS/CuInSe{sub 2} device is a buried, shallow junction with a CdS window layer, rather than a heterojunction. We have used these ideas to develop methods for fabricating devices without CdS or Cd. A 14.2% efficiency ZnO/CIGS device was obtained through aqueous treatment in Zn solutions.

Ramanathan, K.; Wiesner, H.; Asher, S.; Bhattacharya, R. N.; Keane, J.; Contreras, M.; Noufi, R.

1998-11-18T23:59:59.000Z

228

Enhanced quality thin film Cu(In,Ga)Se.sub.2 for semiconductor device applications by vapor-phase recrystallization  

DOE Patents (OSTI)

Enhanced quality thin films of Cu.sub.w (In,Ga.sub.y)Se.sub.z for semiconductor device applications are fabricated by initially forming a Cu-rich, phase-separated compound mixture comprising Cu(In,Ga):Cu.sub.x Se on a substrate to form a large-grain precursor and then converting the excess Cu.sub.x Se to Cu(In,Ga)Se.sub.2 by exposing it to an activity of In and/or Ga, either in vapor In and/or Ga form or in solid (In,Ga).sub.y Se.sub.z. Alternatively, the conversion can be made by sequential deposition of In and/or Ga and Se onto the phase-separated precursor. The conversion process is preferably performed in the temperature range of about 300.degree.-600.degree. C., where the Cu(In,Ga)Se.sub.2 remains solid, while the excess Cu.sub.x Se is in a liquid flux. The characteristic of the resulting Cu.sub.w (In,Ga).sub.y Se.sub.z can be controlled by the temperature. Higher temperatures, such as 500.degree.-600.degree. C., result in a nearly stoichiometric Cu(In,Ga)Se.sub.2, whereas lower temperatures, such as 300.degree.-400.degree. C., result in a more Cu-poor compound, such as the Cu.sub.z (In,Ga).sub.4 Se.sub.7 phase.

Tuttle, John R. (Denver, CO); Contreras, Miguel A. (Golden, CO); Noufi, Rommel (Golden, CO); Albin, David S. (Denver, CO)

1994-01-01T23:59:59.000Z

229

Quantum-confinement versus strain effects in the Zn(Cd)S(Se) family of superlattices  

Science Conference Proceedings (OSTI)

We have investigated the quantum-confinement (QC) and strain effects on the band structures of the Zn(Cd)S(Se) family of binary-compound superlattices (SLs); particularly those with common anions and with common cations. All the studied cases of SLs ... Keywords: 71.20.Nr, 71.55.Gs, 73.21.Fg, 73.61.Ga, II-VI semiconductors, Semiconductor compounds, Superlattices

Ihab M. Obaidat; Nacir Tit

2009-03-01T23:59:59.000Z

230

Novel thin-film CuInSe sub 2 fabrication  

DOE Green Energy (OSTI)

This report describes research in Rapid Thermal Processing (RTP), a process that allows the formation of CuInSe{sub 2} without the use of H{sub 2}Se. RTP is a well-established method of rapidly achieving temperatures necessary to melt and recrystallize materials such as Si and and silicides. RTP processes can rapidly and uniformly heat large surface areas to hundreds of degrees Celsius. RTP is the most promising method of rapid recrystallization studied to date, being readily scalable from the research to the production level. The approach to the experiment was divided into two sections: (1) fabricating the precursor film and (2) processing the precursor film. The objective of the first phase of the work was to fabricate the thin films by RTP, then fully characterize them, to demonstrate the viability of the process as a method by which to make device-quality CuInSe{sub 2}. The second phase was to demonstrate that material made by this method could be used to make an active photovoltaic device. 24 refs.

Mooney, G.D.; Hermann, A.M. (Colorado Univ., Boulder, CO (United States))

1992-03-01T23:59:59.000Z

231

Photoinduced Surface Oxidation and Its Effect on the Exciton Dynamics of CdSe Quantum Dots  

DOE Green Energy (OSTI)

With increased interest in semiconductor nanoparticles for use in quantum dot solar cells there comes a need to understand the long-term photostability of such materials. Colloidal CdSe quantum dots (QDs) were suspended in toluene and stored in combinations of light/dark and N{sub 2}/O{sub 2} to simulate four possible benchtop storage environments. CdSe QDs stored in a dark, oxygen-free environment were observed to better retain their optical properties over the course of 90 days. The excited state lifetimes, determined through femtosecond transient absorption spectroscopy, of air-equilibrated samples exposed to light exhibit a decrease in average lifetime (0.81 ns) when compared to samples stored in a nitrogen/dark environment (8.3 ns). A photoetching technique commonly used for controlled reduction of QD size was found to induce energetic trap states to CdSe QDs and accelerate the rate of electron-hole recombination. X-ray absorption near edge structure (XANES) analysis confirms surface oxidation, the extent of which is shown to be dependent on the thickness of the ligand shell.

Hines, Douglas A.; Becker, Matthew A.; Kamat, Prashant V. (Notre)

2012-11-14T23:59:59.000Z

232

East Building, PHH-30 U.S. Department 1200 New Jersey Avenue, S.E.  

NLE Websites -- All DOE Office Websites (Extended Search)

East Building, PHH-30 East Building, PHH-30 U.S. Department 1200 New Jersey Avenue, S.E. of Transportation Washington, D.C. 20590 Pipeline and Hazardous Materials Safety Administration Tracking Number: 2008110380 April 30, 2009 To Active Grantees of Special Permit 13133: Based on the Pipeline and Hazardous Materials Safety Administration's editorial review initiated on December 4, 2008, certain special permits were amended by updating regulatory citations when necessary, making needed editorial corrections and by inserting language to indicate that the current revision of the special permit supersedes previous revisions. If you have questions concerning these changes, feel free to contact

233

ScanningTunneling Luminescence of Grain Boundaries in Cu(In,Ga)Se2  

DOE Green Energy (OSTI)

At the Laboratory, photon emission in semiconductors has been mapped in the nanoscale using scanning tunneling microscopy (STM). In this Solar Program Review Meeting, we report on the latest results obtained in Cu(In,Ga)Se2 (CIGS) thin films by this adapted STM. Scanning tunneling luminescence (STL) spectroscopy suggests that photons are emitted near the surface of CIGS. STL is excited either by (1) diffusion of tunneling electrons and subsequent recombination with available holes in CIGS or (2) impact ionization by hot electrons. Which process becomes predominant depends on the voltage applied to the STM tip. Photon mapping shows electronically active, extended defects near the surface of CIGS thin films.

Romero, M. J.; Jiang, C.-S.; Al-Jassim, M. M.; Noufi, R.

2005-01-01T23:59:59.000Z

234

Research on polycrystalline thin film submodules based on CuInSe sub 2 materials  

DOE Green Energy (OSTI)

This report describes progress during the first year of a three-year research program to develop 12%-efficient CuInSe{sub 2} (CIS) submodules with area greater than 900 cm{sup 2}. To meet this objective, the program was divided into five tasks: (1) windows, contacts, substrates; (2) absorber material; (3) device structure; (4) submodule design and encapsulation; and (5) process optimization. In the first year of the program, work was concentrated on the first three tasks with an objective to demonstrate a 9%-efficient CIS solar cell. 7 refs.

Catalano, A.; Arya, R.; Carr, L.; Fieselmann, B.; Lommasson, T.; Podlesny, R.; Russell, L.; Skibo, S.; Rothwarf, A.; Birkmire, R. (Solarex Corp., Newtown, PA (United States))

1992-05-01T23:59:59.000Z

235

Determination of the Exciton Binding Energy in CdSe Quantum Dots  

Science Conference Proceedings (OSTI)

The exciton binding energy (EBE) in CdSe quantum dots (QDs) has been determined using x-ray spectroscopy. Using x-ray absorption and photoemission spectroscopy, the conduction band (CB) and valence band (VB) edge shifts as a function of particle size have been determined and combined to obtain the true band gap of the QDs (i.e. without and exciton). These values can be compared to the excitonic gap obtained using optical spectroscopy to determine the EBE. The experimental EBE results are compared with theoretical calculations on the EBE and show excellent agreement.

Meulenberg, R; Lee, J; Wolcott, A; Zhang, J; Terminello, L; van Buuren, T

2009-10-27T23:59:59.000Z

236

Role of polycrystallinity in CdTe and CuInSe[sub 2] photovoltaic cells  

DOE Green Energy (OSTI)

The limiting role of polycrystallinity in thin-film solar calls has been reduced somewhat during the past year, and efficiencies of both CdTe and CuInSe[sub 2] cells are approaching 15%. Quantitative separation of loss mechanisms shows that individual losses, with the exception of forward recombination current, can be made comparable to their single crystal counterparts. One general manifestation of the extraneous trapping states in that the voltage of all polycrystalline thin-film cells drifts upward by 10--50 mV following the onset of illumination.

Sites, J.R. (Colorado State Univ., Fort Collins, CO (United States))

1992-11-01T23:59:59.000Z

237

Investigation of polycrystalline thin-film CuInSe{sub 2} solar cells based on ZnSe windows. Annual subcontract report, 15 Febraury 1992--14 February 1993  

DOE Green Energy (OSTI)

Investigations of ZnSe/CIS solar cells are being carried out in an effort to improve the efficiencies CIS cells and to determine if ZnSe is a viable alternative to CdS as a window material. MOCVD growth of ZnSe is accomplished in a SPIRE 500XT reactor housed in the Electronic Materials Laboratory at WSU Tri-Cities by reacting a zinc adduct with H{sub 2}Se. Conductive n-type ZnSe is grown by using iodine as a dopant. Ethyliodide was mixed with helium and installed on one of the gas lines to the system. ZnSe films have been grown on CIS substrates at 200{degrees}C to 250{degrees}C. ZnO is also being deposited by MOCVD by reacting tetrahydrofuran (THF) with a zinc adduct. ZnSe/CIS heterojunctions have been studied by growing n-ZnSe films onto 2 cm x 2 cm CIS substrates diced from materials supplied by Siemens and then depositing an array of aluminum circular areas 2.8.mm in diameter on top of the ZnSe to serve as contacts. Al films are deposited with a thickness of 80 to l00 {angstrom}so that light can pass through the film, thus allowing the illuminated characteristics of the ZnSe/CIS junction to be tested. Accounting for the 20 to 25 % transmittance through the Al film into the ZnSe/CIS structure, current devices have estimated, active-area AM1.5 efficiencies of 14 %. Open circuit voltages > 500 mV are often attained.

Olsen, L C [Washington State Univ. at Tri-Cities, Richland, WA (United States)

1994-05-01T23:59:59.000Z

238

Resistance, magnetic susceptibility in (T, Nb)Nb2Se10 Institut fr Festkrperphysik, Technische Universitt, A-8010 Graz, Austria  

E-Print Network (OSTI)

Eurochemie B.V., and Se 99.999 % Koch-Light Laboratories Ltd) which were sealed in high evacuated quartz

Paris-Sud XI, Université de

239

Tensile Strain Switched Ferromagnetism in Layered NbS2 and NbSe2  

SciTech Connect

Developing approaches to effectively induce and control the magnetic states is critical to the use of magnetic nanostructures in quantum information devices but is still challenging. Here we have demonstrated, by employing the density functional theory calculations, an existence of infinite magnetic sheets with structural integrity and magnetic homogeneity. Examination from a series of transition metal dichalcogenides shows that the biaxial tensile strained NbS2 and NbSe2 structures can be magnetized with a ferromagnetic character due to the competitive effects of through-bond interaction and through-space interaction. The estimated Curie temperatures (387 and 542 K under the 10% strain for NbS2 and NbSe2 structures, respectively) suggest that the unique ferromagnetic character can be achieved above room temperature. The self-exchange of population between 4d orbitals of Nb atom that leads to the exchange splitting is the mechanism behind the transition of the spin moment. The induced magnetic moments can be significantly enhanced by the tensile strain, even giving rise to half-metallic character with the strong spin polarization around the Fermi level. Given the recent progress that the desired strain can be achieved on two-dimensional nanostructures, such as graphene and BN layer in a controlled way, we believe that our calculated results are suitable for experimental verification and implementation opening a new path to explore the spintronics in pristine two-dimensional nanostructures.

Zhou, Yungang; Wang, Zhiguo; Yang, Ping; Zu, Xiaotao; Yang, Li; Sun, Xin; Gao, Fei

2012-11-01T23:59:59.000Z

240

High-Temperature Microfluidic Synthesis of CdSe Nanocrystals inNanoliter Droplets  

SciTech Connect

The high-temperature synthesis of CdSe nanocrystals innanoliter-volume droplets flowing in a perfluorinated carrier fluidthrough a microfabricated reactor is presented. A flow-focusing nanojetstructure with a step increase in channel height reproducibly generatedoctadecene droplets in Fomblin Y 06/6 perfluorinated polyether atcapillary numbers up to 0.81 and with a droplet:carrier fluid viscosityratio of 0.035. Cadmium and selenium precursors flowing in octadecenedroplets through a high-temperature (240-300 degrees C) glassmicroreactor produced high quality CdSe nanocrystals, as verified byoptical spectroscopy and transmission electron microscopy. Isolating thereaction solution in droplets prevented particle deposition andhydrodynamic dispersion, allowing the reproducible synthesis ofnanocrystals at three different temperatures and four different residencetimes in the span of four hours. Our synthesis of a wide range ofnanocrystals at high temperatures, high capillary numbers, and lowviscosity ratio illustrates the general utility of droplet-basedmicrofluidic reactors to encapsulate nanoliter volumes of organic oraqueous solutions and to precisely control chemical or biochemicalreactions.

Chan, Emory M.; Alivisatos, A. Paul; Mathies, Richard A.

2005-06-09T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Manufacturing technology development for CuInGaSe sub 2 solar cell modules  

DOE Green Energy (OSTI)

The report describes research performed by Boeing Aerospace and Electronics under the Photovoltaic Manufacturing Technology project. We anticipate that implementing advanced semiconductor device fabrication techniques to the production of large-area CuIn{sub 1-x}Ga{sub x}Se{sub 2} (CIGS)/Cd{sub 1-y}Zn{sub y}S/ZnO monolithically integrated thin-film solar cell modules will enable 15% median efficiencies to be achieved in high-volume manufacturing. We do not believe that CuInSe{sub 2} (CIS) can achieve this efficiency in production without sufficient gallium to significantly increase the band gap, thereby matching it better to the solar spectrum (i.e., x{ge}0.2). Competing techniques for CIS film formation have not been successfully extended to CIGS devices with such high band gaps. The SERI-confirmed intrinsic stability of CIS-based photovoltaics renders them far superior to a-Si:H-based devices, making a 30-year module lifetime feasible. The minimal amounts of cadmium used in the structure we propose, compared to CdTe-based devices, makes them environmentally safer and more acceptable to both consumers and relevant regulatory agencies. Large-area integrated thin-film CIGS modules are the product most likely to supplant silicon modules by the end of this decade and enable the cost improvements which will lead to rapid market expansion.

Stanbery, B.J. (Boeing Aerospace and Electronics Co., Seattle, WA (United States))

1991-11-01T23:59:59.000Z

242

SeZnSb alloy and its nano tubes, graphene composites properties  

Science Conference Proceedings (OSTI)

Composite can alter the individual element physical property, could be useful to define the specific use of the material. Therefore, work demonstrates the synthesis of a new composition Se{sub 96}-Zn{sub 2}-Sb{sub 2} and its composites with 0.05% multi-walled carbon nano tubes and 0.05% bilayer graphene, in the glassy form. The diffused amorphous structure of the multi walled carbon nano tubes and bilayer gaphene in the Se{sub 96}-Zn{sub 2}-Sb{sub 2} alloy have been analyzed by using the Raman, X-ray photoluminescence spectroscopy, Furrier transmission infrared spectra, photoluminescence, UV/visible absorption spectroscopic measurements. The diffused prime Raman bands (G and D) have been appeared for the multi walled carbon nano tubes and graphene composites, while the X-ray photoluminescence core energy levels peak shifts have been observed for the composite materials. Subsequently the photoluminescence property at room temperature and a drastic enhancement (upto 80%) in infrared transmission percentage has been obtained for the bilayer graphene composite, along with optical energy band gaps for these materials have been evaluated 1.37, 1.39 and 1.41 eV.

Singh, Abhay Kumar [Department of Physics, Indian Institute of Physics, Bangalore-560012 (India)

2013-04-15T23:59:59.000Z

243

Radiative rates and electron impact excitation rate coefficients for Ne-like selenium, Se XXV  

Science Conference Proceedings (OSTI)

In this article we report calculations of energy levels, radiative rates, electron impact collision strengths, and effective collision strengths for transitions among the 241 fine-structure levels arising from 2l{sup 8} and 2l{sup 7}n{sup '}l{sup '} (n{sup '{241 levels. The effective collision strengths are reported for all 28920 transitions among the 241 levels over a wide temperature range up to 10 keV. To assess the reliability and accuracy of the present collisional data, we have performed a 27-state close-coupling calculation, employing the Dirac R-matrix theory. The results from the close-coupling calculation and the independent-process calculation for the identical target states are found to be in good agreement. - Highlights: {yields} Radiative and collisional atomic data are presented for the lowest 241 fine-structure levels in Ne-like Se. {yields} Calculations are performed using the FAC package. {yields} Resonances enhance significantly a large amount of transitions. {yields} Radiative damping effects are significant for many transitions. {yields} Close-coupling effects are small in Ne-like Se.

Wang, K.; Chen, C.Y., E-mail: chychen@fudan.edu.cn; Huang, M.; Wang, Y.S.; Zou, Y.M.

2011-07-15T23:59:59.000Z

244

Characterization and device performance of (AgCu)(InGa)Se2 absorber layers  

DOE Green Energy (OSTI)

The study of (AgCu)(InGa)Se2 absorber layers is of interest in that Ag-chalcopyrites exhibit both wider bandgaps and lower melting points than their Cu counterparts. (AgCu)(InGa)Se2 absorber layers were deposited over the composition range 0 < Ag/(Ag+Cu) < 1 and 0.3 < Ga/(In+Ga) < 1.0 using a variety of elemental co-evaporation processes. Films were found to be singlephase over the entire composition range, in contrast to prior studies. Devices with Ga content 0.3 < Ga/(In+Ga) <0.5 tolerated Ag incorporation up to Ag/(Ag+Cu) = 0.5 without appreciable performance loss. Ag-containing films with Ga/(In+Ga) = 0.8 showed improved device characteristics over Cu-only control samples, in particular a 30-40% increase in short-circuit current. An absorber layer with composition Ag/(Ag+Cu) = 0.75 and Ga/(In+Ga) = 0.8 yielded a device with VOC = 890 mV, JSC = 20.5mA/cm2, fill factor = 71.3%, and ? = 13.0%.

Hanket, Gregory; Boyle, Jonathan H.; Shafarman, William N.

2009-06-08T23:59:59.000Z

245

NMR Study in the Iron-Selenide Rb0:74Fe1:6Se2: Determination of the Superconducting Phase as Iron Vacancy-Free Rb0:3Fe2Se2  

E-Print Network (OSTI)

NMR Study in the Iron-Selenide Rb0:74Fe1:6Se2: Determination of the Superconducting Phase as Iron magnetic resonance (NMR) experiments on Rb0:74Fe1:6Se2 reveal clearly distinct spectra originating from a majority antiferromagnetic (AF) and a minority metallic-superconducting (SC) phase. The very narrow NMR

Paris-Sud 11, Université de

246

Petrography and genetic history of coffinite and uraninite from the Liueryiqi granite-hosted uranium deposit, SE China  

E-Print Network (OSTI)

-hosted uranium deposit, SE China Maozhong Mina,b,*, Changquan Fanga , Mostafa Fayekc a Department of Earth-hosted uranium deposit, SE China, form a unique bbull's-eyeQ texture. These aggregates consist of concentric% at temperatures between 126 and 178 8C and a lithostatic pressure of 500 to 800 bars. Uranium was likely

Fayek, Mostafa

247

Formation of the Late Aptian Niveau Fallot black shales in the Vocontian Basin (SE France): evidence from foraminifera,  

E-Print Network (OSTI)

Formation of the Late Aptian Niveau Fallot black shales in the Vocontian Basin (SE France for the formation of the marlstone facies and the most prominent black shale intervals of the Late Aptian Niveau Fallot black shale succession from the Vocontian Basin (SE France). In the lower part of the succession

Pross, Jörg

248

Stable n-CuInSe/sub 2/iodide-iodine photoelectrochemical cell  

DOE Patents (OSTI)

In a photoelectrochemical solar cell, stable output and solar efficiency in excess of 10% are achieved with a photoanode of n-CuInSe/sub 2/ electrode material and an iodine/iodide redox couple used in a liquid electrolyte. The photoanode is prepared by treating the electrode material by chemical etching, for example in Br/sub 2//MeOH; heating the etched electrode material in air or oxygen; depositing a surface film coating of indium on the electrode material after the initial heating; and thereafter again heating the electrode material in air or oxygen to oxidize the indium. The electrolyte is treated by the addition of Cu/sup +/ or Cu/sup 2 +/ salts and in In/sup 3 +/ salts.

Cahen, D.; Chen, Y.W.

1984-09-20T23:59:59.000Z

249

Stable N-CuInSe.sub.2 /iodide-iodine photoelectrochemical cell  

DOE Patents (OSTI)

In a photoelectrochemical solar cell, stable output and solar efficiency in excess of 10% are achieved with a photoanode of n-CuInSe.sub.2 electrode material and an iodine/iodide redox couple used in a liquid electrolyte. The photoanode is prepared by treating the electrode material by chemical etching, for example in Br.sub.2 /MeOH; heating the etched electrode material in air or oxygen; depositing a surface film coating of indium on the electrode material after the initial heating; and thereafter again heating the electrode material in air or oxygen to oxidize the indium. The electrolyte is treated by the addition of Cu.sup.+ or Cu.sup.2+ salts and In.sup.3+ salts.

Cahen, David (Rehovot, IL); Chen, Yih W. (Lakewood, CO)

1985-01-01T23:59:59.000Z

250

Optical and quantum efficiency analysis of (Ag,Cu)(In,Ga)Se2 absorber layers  

DOE Green Energy (OSTI)

(Ag,Cu)(In,Ga)Se2 thin films have been deposited by elemental co-evaporation over a wide range of compositions and their optical properties characterized by transmission and reflection measurements and by relative shift analysis of quantum efficiency device measurements. The optical bandgaps were determined by performing linear fits of (?h?)2 vs. h?, and the quantum efficiency bandgaps were determined by relative shift analysis of device curves with fixed Ga/(In+Ga) composition, but varying Ag/(Cu+Ag) composition. The determined experimental optical bandgap ranges of the Ga/(In+Ga) = 0.31, 0.52, and 0.82 groups, with Ag/(Cu+Ag) ranging from 0 to 1, were 1.19-1.45 eV, 1.32-1.56 eV, and 1.52-1.76 eV, respectively. The optical bowing parameter of the different Ga/(In+Ga) groups was also determined.

Boyle, Jonathan; Hanket, Gregory; Shafarman, William

2009-06-09T23:59:59.000Z

251

Co-Evaporated Cu2ZnSnSe4 Films and Devices  

DOE Green Energy (OSTI)

The use of vacuum co-evaporation to produce Cu2ZnSnSe4 photovoltaic devices with 9.15% total-area efficiency is described. These new results suggest that the early success of the atmospheric techniques for kesterite photovoltaics may be related to the ease with which one can control film composition and volatile phases, rather than a fundamental benefit of atmospheric conditions for film properties. The co-evaporation growth recipe is documented, as is the motivation for various features of the recipe. Characteristics of the resulting kesterite films and devices are shown in scanning electron micrographs, including photoluminescence, current-voltage, and quantum efficiency. Current-voltage curves demonstrate low series resistance without the light-dark cross-over seen in many devices in the literature. Band gap indicated by quantum efficiency and photoluminescence is roughly consistent with that expected from first principles calculation.

Repins, I.; Beall, C.; Vora, N.; DeHart, C.; Kuciauskas, D.; Dippo, P.; To, B.; Mann, J.; Hsu, W. C.; Goodrich, A.; Noufi, R.

2012-06-01T23:59:59.000Z

252

Tuning the Surface Structure and Optical Properties of CdSe Clusters Using Coordination Chemistry  

Science Conference Proceedings (OSTI)

A series of nonstoichiometric CdSe clusters with lowest energy electronic absorptions between 409 and 420 nm has been prepared from cadmium 1-naphthoate, 2-naphthoate, 4-thiomethyl-1-naphthaote, and 1-naphthalene thiolate complexes and diphenylphosphine selenide (DPPSe). Pair distribution function analysis of X-ray diffraction data, ligand exchange experiments, and NMR molecular weight analyses suggest the nanocrystal core changes minimally among these clusters despite significant changes to their absorption and luminescence spectra. Photoluminescence excitation spectra obtained at 77 K reveal an energy transfer process between the surface-trapped excited state and the naphthalene-containing ligands that leads to ligand phosphorescence. A Dexter energy transfer mechanism is proposed to explain the observation of ligand phosphorescence on excitation of the cluster. These compounds demonstrate that cluster absorption and trap luminescence can be controlled with surface coordination chemistry.

Cossairt, Brandi M.; Juhas, Pavol; Billinge, Simon J.L.; Owen, Jonathan S. (Columbia)

2012-03-26T23:59:59.000Z

253

Ordered structures based on self-organized Au and CdSe nanoparticles  

SciTech Connect

Methods for obtaining cadmium selenide and gold nanoparticles have been developed. The sizes of the nanoparticles are determined and the morphology, structure, and chemical composition of these nanoparticles and their ensembles are studied by a complex of structural methods: electron diffraction, X-ray diffraction, energy-dispersive X-ray analysis, high-resolution transmission electron microscopy, and small-angle X-ray scattering. Gold nanoparticles are mainly spherical and have an average size of 10 nm. They are single-phase and have an fcc crystal structure. Samples of synthesized CdSe nanoparticles contain monodisperse spherical particles 12 nm in size with a wurtzite structure. The deposition of nanoparticles on a carbon substrate is accompanied by their self-organization into a closely packed two-dimensional structure with a pronounced texture in which all nanoparticles are oriented in the [001] direction perpendicularly to the carbon substrate plane.

Zaporozhets, M. A., E-mail: zaporozhets_m.a@mail.ru [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation); Savilov, S. V. [Moscow State University (Russian Federation); Zhigalina, O. M. [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation); Sul'yanov, S. N.; Volkov, V. V. [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation); Nikolaichik, V. I. [Russian Academy of Sciences, Institute of Microelectronics Technology and High Purity Materials (Russian Federation); Gubin, S. P. [Russian Academy of Sciences, Kurnakov Institute of General and Inorganic Chemistry (Russian Federation); Avilov, A. S. [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)

2012-05-15T23:59:59.000Z

254

Using shape to control photoluminescence from CdSe/CdS core/shell nanorods.  

Science Conference Proceedings (OSTI)

CdSe/CdS core/shell nanorods can exhibit high photoluminescence quantum yields, but it is not yet clear what processes determine the yields and how they can be controlled. Moreover, the effective band alignment between the core and the shell affects quantum yield, but its nature is still under debate. We systematically studied quantum yields when the shell is excited as a function of both core size and shell volume. Using time-resolved photoluminescence decay measurements and transient-absorption spectroscopy, we found that quantum yields are determined by a balance between radiative and nonradiative recombination rates, and not by single-carrier trapping. The radiative recombination rate decreases as the nanorod volume increases, independent of the core size. The results indicate that high quantum yields can be obtained only by limiting the size of the shell and point to an effective quasi-type-II band alignment for all of the nanorods in this study.

She, C.; Demortiere, A.; Shevchenko, E. V.; Pelton, M. (Center for Nanoscale Materials)

2011-06-16T23:59:59.000Z

255

Spin excitations in K2Fe4+xSe5: Linear response approach  

Science Conference Proceedings (OSTI)

Using ab initio linear response techniques we calculate spin-wave spectra in K2Fe4+xSe5, and find them to be in excellent agreement with a recent experiment. The spectrum can be described reasonably well by a localized spin Hamiltonian restricted to first and second nearest neighbor couplings. We confirm that exchange coupling between nearest neighbor Fe magnetic moments is strongly anisotropic, and show directly that in the ideal system this anisotropy has an itinerant nature which can be imitated by introducing higher order terms in the effective localized spin Hamiltonian (biquadratic coupling). In the real system, structural relaxation provides an additional source of the exchange anisotropy of approximately the same magnitude. The dependence of spin-wave spectra on the filling of Fe vacancy sites is also discussed.

Ke, Liqin; van Schilfgaarde, Mark; Antropov, Vladimir

2012-07-17T23:59:59.000Z

256

Photodarkening Effect in a-(GaSe){sub 90}Ag{sub 10} Thin Films  

Science Conference Proceedings (OSTI)

The present paper reports the laser induced changes on the optical properties of a-(GaSe){sub 90}Ag{sub 10} thin films prepared by thermal evaporation technique. Thin film samples, on glass substrate, were exposed to laser light of wavelength {lambda} = 532 nm for different exposure times, t{sub E}(t{sub E}=0{sub s}, 500 s, 1000 s and 3000 s). Optical parameters like absorption coefficient and optical energy gap of as- deposited thin film and their laser induced changes were studied at three different times of exposure. The value of absorption coefficient of these thin film increases on exposing the film to laser irradiation. The optical absorption edge shift to lower photon energy i.e. the Photodarkening (PD) effect occurs. The results have been explained on the basis of structural changes that are occurring after the laser irradiation.

Gupta, Shikha; Mustafa, F. I.; Saini, G. S. S.; Goyal, Navdeep; Tripathi, S. K. [Department of Physics, Panjab University, Chandigarh-160 014 (India)

2011-12-12T23:59:59.000Z

257

Growth mechanism and surface atomic structure of AgInSe{sub 2}  

Science Conference Proceedings (OSTI)

The growth of (112)A-oriented AgInSe{sub 2} on GaAs (111)A and its surface reconstruction were studied by scanning tunneling microscopy, atomic force microscopy, and other techniques. Films were grown by a sputtering and evaporation method. Topographic STM images reveal that the film grew by atomic incorporation into surface steps resulting from screw dislocations on the surface. The screw dislocation density was {approx}10{sup 10} cm{sup 2}. Atomically resolved images also show that the surface atomic arrangement appears to be similar to that of the bulk, with a spacing of 0.35-0.41 nm. There is no observable reconstruction, which is unexpected for a polar semiconductor surface.

Pena Martin, Pamela; Rockett, Angus A.; Lyding, Joseph [Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W. Green St., Urbana, Illinois 61801 (United States); Department of Electrical and Computer Engineering and the Beckman Institute, University of Illinois at Urbana-Champaign, 405 N. Matthews St., Urbana, Illinois 61801 (United States)

2012-07-15T23:59:59.000Z

258

Environmental issues related to commercialization of CulnSe{sub 2}- based photovoltaics  

DOE Green Energy (OSTI)

One of the most promising materials for low-cost thin film photovoltaic cells is copper indium selenide (CuInSe{sub 2} or CIS). As with any new material, successful commercialization of CIS photovoltaic (PV) technology will require attention to environmental issues related to the sources of raw materials, their usage, and the disposal and/or recycling of products at the end of their useful life. This paper focuses on three specific environmental issues related to CIS technology: (i) Economics of the use and re-use of materials; (ii) regulations on environmental disposal and waste handling, and (iii) logistics and economics of recycling and disposing of products by industries faced with comparable environmental issues.

Eberspacher, C. [UNISUN, Newbury Park, CA (United States); Fthenakis, V.M.; Moskowitz, P.D.

1996-07-01T23:59:59.000Z

259

Migrating data from TcSE to DOORS : an evaluation of the T-Plan Integrator software application.  

SciTech Connect

This report describes our evaluation of the T-Plan Integrator software application as it was used to transfer a real data set from the Teamcenter for Systems Engineering (TcSE) software application to the DOORS software application. The T-Plan Integrator was evaluated to determine if it would meet the needs of Sandia National Laboratories to migrate our existing data sets from TcSE to DOORS. This report presents the struggles of migrating data and focuses on how the Integrator can be used to map a data set and its data architecture from TcSE to DOORS. Finally, this report describes how the bulk of the migration can take place using the Integrator; however, about 20-30% of the data would need to be transferred from TcSE to DOORS manually. This report does not evaluate the transfer of data from DOORS to TcSE.

Post, Debra S. (Sandia National Laboratories, Livermore, CA); Manzanares, David A.; Taylor, Jeffrey L.

2011-02-01T23:59:59.000Z

260

Research on polycrystalline thin-film CuGaInSe[sub 2] solar cells  

DOE Green Energy (OSTI)

This report describes research to fabricate high-efficiency CdZnS/CuInGaSe[sub 2] (CIGS) thin-film solar cells, and to develop improved transparent conductor window layers such as ZnO. A specific technical milestone was the demonstration of an air mass (AM) 1.5 global, 13% efficient, 1-cm[sup 2]-total-area CIGS thin-film solar cell. Our activities focused on three areas. First, a CIGS deposition: system was modified to double its substrate capacity, thus increasing throughput, which is critical to speeding the process development by providing multiple substrates from the same CIGS run. Second, new tooling was developed to enable an investigation of a modified aqueous CdZnS process. The goal was to improve the yield of this critical step in the device fabrication process. Third, our ZnO sputtering system was upgraded to improve its reliability, and the sputtering parameters were further optimized to improve its properties as a transparent conducting oxide. The characterization of the new CIGS deposition system substrate fixturing was completed, and we produced good thermal uniformity and adequately high temperatures for device-quality CIGS deposition. Both the CIGS and ZnO deposition processes were refined to yield a ZnO//Cd[sub 0.82]Zn[sub 0.18]S/CuIn[sub 0.80]Ga[sub 0.20]Se[sub 2] cell that was verified at NREL under standard testing conditions at 13.1% efficiency with V[sub oc] = 0.581 V, J[sub sc] = 34.8 mA/cm[sup 2], FF = 0.728, and a cell area of 0.979 cm[sup 2].

Stanbery, B.J.; Chen, W.S.; Devaney, W.E.; Stewart, J.W. (Boeing Co., Seattle, WA (United States). Defense and Space Systems Group)

1992-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Quantum oscillation of Rashba spin splitting in topological insulator Bi2Se3 induced by the quantum size effects of Pb adlayers  

Science Conference Proceedings (OSTI)

Basedon rst-principlescalculationswithindensityfunctionaltheory,we ndthatPbadlayerscaninduceagiantRashbaspinsplittinginthequantumwellstatesofanunderlyingBi2Se3 lm.AsthethicknessofthePbadlayersvaries,thedistancebetweenthePbadlayerandtheBi2Se3 lm,thechargedensityattheinterface,andthebindingbetweenthePbadlayersexhibitanoscillatorybehaviorduetothequantumsizeeffects,whichinturnmodulatesthemagnitudeoftheRashbaspinsplittingofthequantumwellstatesintheBi2Se3 lm.

Yang, Hong [Xiangtan University, Xiangtan Hunan, China; Peng, Xiangyang [Xiangtan University, Xiangtan Hunan, China; Wei, Xiaolin [Xiangtan University, Xiangtan Hunan, China; Liu, Wenliang [Xiangtan University, Xiangtan Hunan, China; Zhu, Wenguang [ORNL; Xiao, Di [ORNL; Stocks, George Malcolm [ORNL; Zhong, Jianxin [Xiangtan University, Xiangtan Hunan, China

2012-01-01T23:59:59.000Z

262

Photoluminescence spectral study of single CdSe/ZnS Colloidal Nanocrystals in Poly(methyl methacrylate) and Quantum Dots molecules  

E-Print Network (OSTI)

of the CdSe/ZnS nanocrystals . . . . . . . .D. CdSe/ZnS NCs in negative photon resist SU-line shapes of single CdSe VI Optical characterization of

Shen, Yaoming

2008-01-01T23:59:59.000Z

263

Surface structure of CdSe Nanorods revealed by combined X-ray absorption fine structure measurements and ab-initio calculations  

E-Print Network (OSTI)

A) and relaxed (B) 2.4 nm diameter CdSe nanowire structuresSurface Structure of CdSe Nanorods Revealed by Combined X-underestimate of the bulk CdSe lattice constant predicted by

2006-01-01T23:59:59.000Z

264

Green route synthesis of high quality CdSe quantum dots for applications in light emitting devices  

SciTech Connect

Investigation was made on light emitting diodes fabricated using CdSe quantum dots. CdSe quantum dots were synthesized chemically using olive oil as the capping agent, instead of toxic phosphine. Room temperature photoluminescence investigation showed sharp 1st excitonic emission peak at 568 nm. Bi-layer organic/inorganic (P3HT/CdSe) hybrid light emitting devices were fabricated by solution process. The electroluminescence study showed low turn on voltage ({approx}2.2 V) .The EL peak intensity was found to increase by increasing the operating current. - Graphical abstract: Light emitting diode was fabricated using CdSe quantum dots using olive oil as the capping agent, instead of toxic phosphine. Bi-layer organic/inorganic (P3HT/CdSe) hybrid light emitting device shows strong electroluminescence in the range 630-661 nm. Highlights: Black-Right-Pointing-Pointer CdSe Quantum dots were synthesized using olive oil as the capping agent. Black-Right-Pointing-Pointer Light emitting device was fabricated using CdSe QDs/P3HT polymer heterojunction. Black-Right-Pointing-Pointer The I-V characteristics study showed low turn on voltage at {approx}2.2 V. Black-Right-Pointing-Pointer The EL peak intensity increases with increasing the operating current.

Bera, Susnata, E-mail: susnata.bera@gmail.com [Department of Physics and Meteorology, Indian Institute of Technology Kharagpur, Kharagpur 721302 (India); Singh, Shashi B. [Department of Physics and Meteorology, Indian Institute of Technology Kharagpur, Kharagpur 721302 (India); Ray, S.K., E-mail: physkr@phy.iitkgp.ernet.in [Department of Physics and Meteorology, Indian Institute of Technology Kharagpur, Kharagpur 721302 (India)

2012-05-15T23:59:59.000Z

265

Photodeposition of Pt on Colloidal CdS and CdSe/CdS Semiconductor Nanostructures  

DOE Green Energy (OSTI)

Semiconductor photocatalysis has been identified as a promising avenue for the conversion of solar energy into environmentally friendly fuels, most notably by the production of hydrogen from water.[1-5] Nanometer-scale materials in particular have attracted considerable scientific attention as the building blocks for light-harvesting applications.[6,7] Their desirable attributes include tunability of the optical properties with size, amenability to relatively inexpensive low-temperature processing, and a high degree of synthetic sophistication leading to increasingly complex and multi-functional architectures. For photocatalysis in particular, the high surface-to-volume ratios in nanoscale materials should lead to an increased availability of carriers for redox reactions on the nanoparticle surface. Recombination of photoexcited carriers directly competes with photocatalytic activity.[3] Charge separation is often achieved with multi-component heterostructures. An early example is the case of TiO2 powders functionalized with Pt and RuO2 particles, where photoexcited electrons are transferred to Pt (the reduction site) and holes to RuO2 (the oxidation site).[8] More recently, many colloidally synthesized nanometer-scale metal-semiconductor heterostructures have been reported.[7,9,10] A majority of these structures are made by thermal methods.[7,10] We have chosen to study photochemical formation of metal-semiconductor heterostructures. The detailed understanding of the mechanisms involved in photodeposition of metals on nanometer-scale semiconductors is necessary to enable a high degree of synthetic control. At the same time, because the results of metal deposition can be directly observed by electron microscopy, it can be used to understand how factors such as nanocrystal composition, shape, carrier dynamics, and surface chemistry influence the photochemical properties of semiconductor nanocrystals. In this communication, we report on the photodeposition of Pt on colloidal CdS and CdSe/CdS core/shell nanocrystals. Among the II-VI semiconductors, CdS is of particular interest because it has the correct band alignment for water photolysis[2] and has been demonstrated to be photocatalytically active.[11-16] We have found that the photoexcitation of CdS and CdSe/CdS in the presence of an organometallic Pt precursor leads to deposition of Pt nanoparticles on the semiconductor surface. Stark differences are observed in the Pt nanoparticle location on the two substrates, and the photodeposition can be completely inhibited by the modification of the semiconductor surface. Our results suggest that tuning of the semiconductor band structure, spatial organization and surface chemistry should be crucial in the design of photocatalytic nanostructures.

Dukovic, Gordana; Merkle, Maxwell G.; Nelson, James H.; Hughes, Steven M.; Alivisatos, A. Paul

2008-08-06T23:59:59.000Z

266

Molecular-beam epitaxy and robust superconductivity of stoichiometric FeSe crystalline films on bilayer graphene  

Science Conference Proceedings (OSTI)

We report on molecular beam epitaxy growth of stoichiometric and superconducting FeSe crystalline thin films on double-layer graphene. Layer-by-layer growth of high-quality films has been achieved in a well-controlled manner by using Se-rich condition, which allow us to investigate the thickness-dependent superconductivity of FeSe. In situ low-temperature scanning tunneling spectra reveal that the local superconducting gap in the quasiparticle density of states is visible down to two triple layers for the minimum measurement temperature of 2.2 K, and that the transition temperature T{sub c} scales inversely with film thickness.

Song Canli; Jiang Yeping; Xue Qikun [State Key Laboratory for Surface Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); State Key Laboratory for Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084 (China); Wang Yilin; Li Zhi; Wang Lili; He Ke; Ma Xucun [State Key Laboratory for Surface Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Chen Xi [State Key Laboratory for Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084 (China)

2011-07-01T23:59:59.000Z

267

Air quality investigations of the Sandia National Laboratories Sol se Mete Aerial Cable Facility  

Science Conference Proceedings (OSTI)

The air quality implications of the test and evaluation activities at the Sandia National Laboratories Sol se Mete Aerial Cable Facility are examined. All facets of the activity that affect air quality are considered. Air contaminants produced directly include exhaust products of rocket motors used to accelerate test articles, dust and gas from chemical explosives, and exhaust gases from electricity generators in the test arenas. Air contaminants produced indirectly include fugitive dust and exhaust contaminants from vehicles used to transport personnel and material to the test area, and effluents produced by equipment used to heat the project buildings. Both the ongoing program and the proposed changes in the program are considered. Using a reliable estimate of th maximum annual testing level, the quantities of contaminants released by project activities ar computed either from known characteristics of test items or from EPA-approved emission factors Atmospheric concentrations of air contaminants are predicted using EPA dispersion models. The predicted quantities and concentrations are evaluated in relation to Federal, New Mexico, an Bernalillo County air quality regulations and the human health and safety standards of the American Conference of Governmental Industrial Hygienists.

Gutman, W.M.; Silver, R.J. [New Mexico State Univ., Las Cruces, NM (United States). Physical Science Lab.

1994-12-01T23:59:59.000Z

268

Environmental, health and safety issues related to commercializing CuInSe{sub 2}-based photovoltaics  

DOE Green Energy (OSTI)

Photovoltaics technology is rapidly evolving towards a new generation of low-cost thin film technologies. One of the most promising materials in this new generation is copper indium selenide (CuInSe{sub 2} or CIS). As with any new material, successful commercialization of CIS photovoltaic (PV) technology will require attention to environmental, health and safety issues, including consideration of the sources, usage, and end-of-product-life disposal and/or recycling of the constituent materials. This work focuses on three specific environmental, health and safety (EH and S) issues related to CIS PV: (1) economics are analyzed to determine their impact on materials use and re-use; (2) Federal and California State environmental disposal and waste handling regulations are analyzed to evaluate their impact on PV module manufacturing and end-of-life module handling; and (3) the logistics and economics of product recycling and waste disposal by industries with comparable EH and S issues are examined to quantify the corresponding options available for handling, disposing of and/or recycling manufacturing by-products and end-of-life modules.

Eberspacher, C. [UNISUN, Newbury Park, CA (United States); Fthenakis, V.M.; Moskowtiz, P.D. [Brookhaven National Lab., Upton, NY (United States)

1996-07-01T23:59:59.000Z

269

ORIGINAL PAPER Characterization of CdSe nanocrystals coated with amphiphiles. A capillary electrophoresis study  

E-Print Network (OSTI)

# The Author(s) 2011. This article is published with open access at Springerlink.com Abstract We have synthesized CdSe nanocrystals (NCs) possessing a trioctylphosphine surface passivation layer and modified with amphiphilic molecules to form a surface bilayer. The NCs covered with single amphiphiles are not stable in aqueous solution, but a mixed amphiphilic system is shown to provide stability in solution over several months. The solutions of the modified NCs were characterized by UV-Vis absorbance, photoluminescence, and transmissionelectronmicroscopy. An electrophoretic study revealed two operational modes. The first relies on the enrichment of NCs using a micellar plug as a tool. The accumulation of NCs at the plug-electrolyte buffer interface results in a sharp peak. By controlling the electrophoretic conditions, nanocrystals were forced to exit a micellar plug into an electrolyte buffer. We conclude that a system consisting of modified nanocrystals and a micellar plug can act as a mixed pseudomicellar system, where modified nanocrystals play theroleofpseudomicelles. Electronic supplementary material The online version of this article (doi:10.1007/s00604-011-0727-8) contains supplementary material, which is available to authorized users.

S?awomir Oszwa?dowski; Katarzyna Zawistowska-gibu?a; Kenneth P. Roberts; S. Oszwa?dowski; K. Zawistowska-gibu?a; K. P. Roberts

2011-01-01T23:59:59.000Z

270

Performance Characterization and Remedy of Experimental CuInGaSe2 Mini-Modules: Preprint  

DOE Green Energy (OSTI)

We employed current-voltage (I-V), quantum efficiency (QE), photoluminescence (PL), electroluminescence (EL), lock-in thermography (LIT), and (electrochemical) impedance spectroscopy (ECIS) to complementarily characterize the performance and remedy for two pairs of experimental CuInGaSe2 (CIGS) mini-modules. One pair had the three scribe-lines (P1/P2/P3) done by a single pulse-programmable laser, and the other had the P2/P3 lines by mechanical scribe. Localized QE measurements for each cell strip on all four mini-modules showed non-uniform distributions that correlated well with the presence of performance-degrading strips or spots revealed by PL, EL, and LIT imaging. Performance of the all-laser-scribed mini-modules improved significantly by adding a thicker Al-doped ZnO layer and reworking the P3 line. The efficiency on one of the all-laser-scribed mini-modules increased notably from 7.80% to 8.56% after the performance-degrading spots on the side regions along the cell array were isolated by manual scribes.

Pern, F. J.; Yan, F.; Mansfield, L.; Glynn, S.; Rekow, M.; Murion, R.

2011-07-01T23:59:59.000Z

271

Processing approach towards the formation of thin-film Cu(In,Ga)Se2  

DOE Patents (OSTI)

A two-stage method of producing thin-films of group IB-IIIA-VIA on a substrate for semiconductor device applications includes a first stage of depositing an amorphous group IB-IIIA-VIA precursor onto an unheated substrate, wherein the precursor contains all of the group IB and group IIIA constituents of the semiconductor thin-film to be produced in the stoichiometric amounts desired for the final product, and a second stage which involves subjecting the precursor to a short thermal treatment at 420.degree. C.-550.degree. C. in a vacuum or under an inert atmosphere to produce a single-phase, group IB-III-VIA film. Preferably the precursor also comprises the group VIA element in the stoichiometric amount desired for the final semiconductor thin-film. The group IB-IIIA-VIA semiconductor films may be, for example, Cu(In,Ga)(Se,S).sub.2 mixed-metal chalcogenides. The resultant supported group IB-IIIA-VIA semiconductor film is suitable for use in photovoltaic applications.

Beck, Markus E. (Falkensee, DE); Noufi, Rommel (Golden, CO)

2003-01-01T23:59:59.000Z

272

CdSe/CdTe type-II superlattices grown on GaSb (001) substrates by molecular beam epitaxy  

SciTech Connect

CdSe/CdTe superlattices are grown on GaSb substrates using molecular beam epitaxy. X-ray diffraction measurements and cross-sectional transmission electron microscopy images indicate high crystalline quality. Photoluminescence (PL) measurements show the effective bandgap varies with the superlattice layer thicknesses and confirm the CdSe/CdTe heterostructure has a type-II band edge alignment. The valence band offset between unstrained CdTe and CdSe is determined as 0.63 {+-} 0.06 eV by fitting the measured PL peak positions using the envelope function approximation and the Kronig-Penney model. These results suggest that CdSe/CdTe superlattices are promising candidates for multi-junction solar cells and other optoelectronic devices based on GaSb substrates.

Li Jingjing; Liu Shi; Wang Shumin; Ding Ding; Johnson, Shane R.; Zhang Yonghang [Center for Photonics Innovation, Arizona State University, Tempe, Arizona 85287 (United States); School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85287 (United States); Liu Xinyu; Furdyna, Jacek K. [Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States); Smith, David J. [Center for Photonics Innovation, Arizona State University, Tempe, Arizona 85287 (United States); Department of Physics, Arizona State University, Tempe, Arizona 85287 (United States)

2012-03-19T23:59:59.000Z

273

Disordered stoichiometric nanorods and ordered off-stoichiometric nanoparticles in n-type thermoelectric Bi?Te?.?Se?.?  

E-Print Network (OSTI)

N-type Bi?Te?.?Se?.? bulk thermoelectric materials with peak ZT values up to ?1 were examined by transmission electron microscopy and electron diffraction. Two nanostructural features were found: (i) a structural modulation ...

Carlton, Chris E.

274

Enhanced photorefractive performance in CdSe quantum-dot-dispersed poly(styrene-co-acrylonitrile) polymers  

Science Conference Proceedings (OSTI)

This paper reports on the enhanced photorefractive behavior of a CdSe quantum-dot-dispersed less expensive polymer of poly(styrene-co-acrylonitrile). The capability of CdSe quantum dots used as photosensitizers and the associated photorefractive performance are characterized through a photocurrent experiment and a two-beam coupling experiment, respectively. An enhanced two-beam coupling gain coefficient of 12.2 cm{sup -1} at 46 V/mum was observed owning to the reduced potential barrier. The photorefractive performance per CdSe quantum dot is three orders of magnitude higher than that in the sample sensitized by trinitrofluorenone in poly(styrene-co-acrylonitrile), and almost ten times higher than that in the CdSe quantum-dot-sensitized poly(N-vinylcarbazole) polymers.

Li Xiangping; Embden, Joel van; Chon, James W. M.; Gu Min [Centre for Micro-Photonics, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn, Victoria 3122 (Australia); Evans, Richard A. [CSIRO Molecular and Health Technologies, Bag 10, Clayton South, Victoria 3169 (Australia)

2010-06-21T23:59:59.000Z

275

Quantitative size-dependent structure and strain determination of CdSe nanoparticles using atomic pair distribution function analysis  

E-Print Network (OSTI)

The size-dependent structure of CdSe nanoparticles, with diameters ranging from 2 to 4 nm, has been studied using the atomic pair distribution function (PDF) method. The core structure of the measured CdSe nanoparticles can be described in terms of the wurtzite atomic structure with extensive stacking faults. The density of faults in the nanoparticles ~50% . The diameter of the core region was extracted directly from the PDF data and is in good agreement with the diameter obtained from standard characterization methods suggesting that there is little surface amorphous region. A compressive strain was measured in the Cd-Se bond length that increases with decreasing particle size being 0.5% with respect to bulk CdSe for the 2 nm diameter particles. This study demonstrates the size-dependent quantitative structural information that can be obtained even from very small nanoparticles using the PDF approach.

A. S. Masadeh; E. Bozin; C. L. Farrow; G. Paglia; P. Juhas; A. Karkamkar; M. G. Kanatzidis; S. J. L. Billinge

2007-04-10T23:59:59.000Z

276

Growth of undoped and chromium-doped CdSxSe1-x crystals by the physical vapor transport method  

Science Conference Proceedings (OSTI)

Chromium-doped CdSe is one of the host materials being considered for solid-state tunable mid-infrared (IR) lasers. Alloying CdSe with CdS allows the increase of the thermal conductivity of the crystal (for CdS the thermal conductivity is a factor of ... Keywords: Cr2+:CdSSe, photoluminescence, physical vapor transport, tunable mid-IR solid-state lasers

U. N. Roy; Y. Cui; C. Barnett; K.-T. Chen; A. Burger; Jonathan T. Goldstein

2002-07-01T23:59:59.000Z

277

Improved selenization procedure to obtain CuInSe{sub 2} thin films from sequentially electrodeposited precursors  

Science Conference Proceedings (OSTI)

A new approach for CuInSe{sub 2} formation by sequential electrodeposition of Cu and In-Se layers and subsequent heat-treatment with elemental selenium in Ar and Ar + H{sub 2} flows is presented. The nature of the precursors and their evolution as a function of the selenization parameters have been studied by X-ray diffraction and X-ray photoelectron spectroscopy analysis. Sample temperature, Se-source temperature, and H{sub 2}/Ar volume ratio in the flow were the subject for optimization. A sample temperature above 400 C is needed to obtain single-phase CuInSe{sub 2} films. An increase in the film crystallinity has been reached by maintaining the Se-source temperature above 400 C. The introduction of H{sub 2} in the selenizing atmosphere has proven to be unsuitable, H{sub 2}Se formation must be avoided because it is more poisonous and less reactive than the elemental selenium vapor.

Guillen, C.; Herrero, J. [CIEMAT, Madrid (Spain). Inst. de Energias Renovables

1996-02-01T23:59:59.000Z

278

Large single crystal quaternary alloys of IB-IIIA-Se/sub 2/ and methods of synthesizing the same  

DOE Patents (OSTI)

New alloys of Cu/sub x/Ag/sub (1-x)/InSe/sub 2/ (where x ranges between 0 and 1 and preferably has a value of about 0.75) and CuIn/sub y/Ga/sub (1-y)/Se/sub 2/ (where y ranges between 0 and 1 and preferably has a value of about 0.90) in the form of single crystals with enhanced structure perfection, which crystals are substantially free of fissures, are disclosed. Processes are disclosed for preparing the new alloys of Cu/sub x/Ag/sub (1-x)/InSe/sub 2/. The process includes placing stoichiometric quantities of a Cu, Ag, In, and Se reaction mixture or stoichiometric quantities of a Cu, In, Ga, and Se reaction mixture in a refractory crucible in such a manner that the reaction mixture is surrounded by B/sub 2/O/sub 3/, placing the thus loaded crucible in a chamber under a high pressure atmosphere of inert gas to confine the volatile Se to the crucible, and heating the reaction mixture to its melting point. The melt can then be cooled slowly to form, by direct solidification, a single crystal with enhanced structure perfection, which crystal is substantially free of fissures.

Ciszek, T.F.

1986-07-15T23:59:59.000Z

279

Large single crystal quaternary alloys of IB-IIIA-SE.sub.2 and methods of synthesizing the same  

DOE Patents (OSTI)

New alloys of Cu.sub.x Ag.sub.(1-x) InSe.sub.2 (where x ranges between 0 and 1 and preferably has a value of about 0.75) and CuIn.sub.y Ga.sub.(1-y) Se.sub.2 (where y ranges between 0 and 1 and preferably has a value of about 0.90) in the form of single crystals with enhanced structure perfection, which crystals are substantially free of fissures are disclosed. Processes are disclosed for preparing the new alloys of Cu.sub.x Ag.sub.(1-x) InSe.sub.2. The process includes placing stoichiometric quantities of a Cu, Ag, In, and Se reaction mixture or stoichiometric quantities of a Cu, In, Ga, and Se reaction mixture in a refractory crucible in such a manner that the reaction mixture is surrounded by B.sub.2 O.sub.3, placing the thus loaded crucible in a chamber under a high pressure atmosphere of inert gas to confine the volatile Se to the crucible, and heating the reaction mixture to its melting point. The melt can then be cooled slowly to form, by direct solidification, a single crystal with enhanced structure perfection, which crystal is substantially free of fissures.

Ciszek, Theodore F. (Evergreen, CO)

1988-01-01T23:59:59.000Z

280

Determination of Grain Boundary Charging in Cu(In,Ga)Se2 Thin Films: Preprint  

DOE Green Energy (OSTI)

Surface potential mapping of Cu(In,Ga)Se2 (CIGS) thin films using scanning Kelvin probe force microscopy (SKPFM) aims to understand the minority-carrier recombination at the grain boundaries (GBs) of this polycrystalline material by examining GB charging, which has resulted in a number of publications. However, the reported results are highly inconsistent. In this paper, we report on the potential mapping by measuring wide-bandgap or high-Ga-content films and by using a complementary atomic force microscopy-based electrical technique of scanning capacitance microscopy (SCM). The results demonstrate consistent, positively charged GBs on our high-quality films with minimal surface defects/charges. The potential image taken on a low-quality film with a 1.2-eV bandgap shows significantly degraded potential contrast on the GBs and degraded potential uniformity on grain surfaces, resulting from the surface defects/charges of the low-quality film. In contrast, the potential image on an improved high-quality film with the same wide bandgap shows significantly improved GB potential contrast and surface potential uniformity, indicating that the effect of surface defects is critical when examining GB charging using surface potential data. In addition, we discuss the effect of the SKPFM setup on the validity of potential measurement, to exclude possible artifacts due to improper SKPFM setups. The SKPFM results were corroborated by using SCM measurements on the films with a CdS buffer layer. The SCM image shows clear GB contrast, indicating different electrical impedance on the GB from the grain surface. Further, we found that the GB contrast disappeared when the CdS window layer was deposited after the CIGS film was exposed extensively to ambient, which was caused by the creation of CIGS surface defects by the ambient exposure.

Jiang, C. S.; Contreras, M. A.; Repins, I.; Moutinho, H. R.; Noufi, R.; Al-Jassim, M. M.

2012-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Biological investigations of the Sandia National Laboratories Sol se Mete Aerial Cable Facility  

Science Conference Proceedings (OSTI)

This report provides results of a comprehensive biological field survey performed on the Sandia National Laboratories Aerial Cable Facility, at the east end of Kirtland Air Force Base (KAFB), Bernalillo County, New Mexico. This survey was conducted late September through October, 1991. ACF occupies a 440-acre tract of land withdrawn by the US Forest Service (USFS) for use by KAFB, and in turn placed under operational control of SNL by the Department of Energy (DOE). All land used by SNL for ACF is part of a 15,851-acre tract of land withdrawn by the US Forest Service. In addition, a number of different organizations use the 15,851-acre area. The project area used by SNL encompasses portions of approximately six sections (3,840 acres) of US Forest Service land located within the foothills of the west side of the Manzano Mountains (East Mesa). The biological study area is used by the KAFB, the US Department of Interior, and SNL. This area includes: (1) Sol se Mete Springs and Canyon, (2) East Anchor Access Road, (3) East Anchor Site, (4) Rocket Sled Track, (5) North Arena, (6) East Instrumentation Site and Access Road, (7) West Anchor Access Road, (8) West Anchor Site, (9) South Arena, (10) Winch Sites, (11) West Instrumentation Sites, (12) Explosive Assembly Building, (13) Control Building, (14) Lurance Canyon Road and vicinity. Although portions of approximately 960 acres of withdrawn US Forest Service land have been altered, only 700 acres have been disturbed by activities associated with ACF; approximately 2,880 acres consist of natural habitat. Absence of grazing by livestock and possibly native ungulates, and relative lack of human disturbance have allowed this area to remain in a more natural vegetative state relative to the condition of private range lands throughout New Mexico. This report evaluates threatened and endangered species found on ACF, as well as a comprehensive assessment of biological habitats.

Sullivan, R.M.

1994-10-01T23:59:59.000Z

282

The Structural Transition Behavior of CdSe/ZnS Core/shell Quantum Dots under High Pressure  

Science Conference Proceedings (OSTI)

The structural phase transition of CdSe/ZnS core/shell quantum dots (QDs) has been studied by in situ angle-dispersive X-ray diffraction under high pressure up to 53.6?GPa. The CdSe core transforms from wurtzite to rock-salt structure near 6.3?GPa and then to Cmcm or distorted Cmcm structure probably occurs at 45.1?GPa which has not been observed in CdSe nanomaterials before. The critical pressure from wurtzite to rock-salt and the bulk modulus of rock-salt phase are much higher than those for bulky and uncapped nanoparticle CdSe. The released sample can be kept in rock-salt phase for a certain time, verified by photoluminescence (PL) spectra, quite different from the reversible transition for pure CdSe. A reasonable interpretation of the experimental phenomena is given by comparing the bulk modulus of the core and shell and studying the stress sate of the core after decompression. Our study suggests that capping a hard shell is an effective approach to quench the high pressure phase of nanomaterial with a reversible phase transition.

Z Li; L Wang; B Liu; J Wang; B Liu; Q Li; B Zou; T Cui; Y Meng; H Mao

2011-12-31T23:59:59.000Z

283

Photoconductivity and luminescence of CuInSe{sub 2} single crystals at a high level of optical excitation  

Science Conference Proceedings (OSTI)

The luminance-current and spectral characteristics of photoluminescence of the CuInSe{sub 2} single crystals are studied. The superlinear portion of the excitation-intensity dependence of photoconductivity at low excitation intensities in compensated p-CuInSe{sub 2} crystals is explained on the basis of a recombination model. The emission band that peaked at 0.98 eV in the n-CuInSe{sub 2} photoluminescence spectrum corresponds to radiative recombination of electrons at the donor level with a depth of 0.04 eV. The maximum in the band intensity corresponds to the energy gap between the trap level and the valence band.

Guseinov, A. G.; Salmanov, V. M.; Mamedov, R. M. [Baku State University (Azerbaijan)], E-mail: rovshan63@rambler.ru

2006-04-15T23:59:59.000Z

284

Electrochemical photovoltaic cells CdSe thin film electrodes. Quarterly progress report No. 1, June-August 1979  

DOE Green Energy (OSTI)

The overall objective of this program is to obtain AM1 efficiencies in the range of 10% with electrochemical cells utilizing thin film electrodes. The system currently being investigated is the CdSe/aqueous sulfide-polysulfide system. This report presents the results to date of the initial CdSe deposition parameter study. The key finding has been that the ratio of Se and Cd in the as deposited film has marked effect on the film's chemical, microstructural, optical, and electrical properties as well as I-V performance. In addition, it has been found that electrolyte concentration and compostion can have a strong effect on the I-V performance of a given electrode.

Russak, M.A.; Creter, C.

1979-09-01T23:59:59.000Z

285

Molecular beam epitaxy growth of PbSe on Si (211) using a ZnTe buffer layer  

Science Conference Proceedings (OSTI)

The authors report the results of successful growth of single crystalline PbSe on Si (211) substrates with ZnTe as a buffer layer by molecular beam epitaxy. Single crystalline PbSe with (511) orientation was achieved on ZnTe/Si (211), as evidenced by RHEED patterns indicative of 2 dimensional (2D) growth, x ray diffraction rocking curves with a full width at half maximum as low as 153 arc sec and mobility as large as 1.1x10{sup 4}cm{sup 2}V{sup -1}s{sup -1} at 77 K. Cross hatch patterns were found on the PbSe(511) surface in Nomarski filtered microscope images suggesting the presence of a surface thermal strain relaxation mechanism, which was confirmed by Fourier transformed high resolution transmission electron microscope images.

Wang, X. J.; Chang, Y.; Hou, Y. B.; Becker, C. R.; Kodama, R.; Aqariden, F.; Sivananthan, S. [Microphysics Laboratory, Physics Department, University of Illinois at Chicago, Illinois 60607 (United States); Microphysics Laboratory, Physics Department, University of Illinois at Chicago, Illinois 60607 and Physics Department and Quantum Functional Semiconductor Research Center, Dongguk University 3-26, Seoul 100-715 (Korea, Republic of); Microphysics Laboratory, Physics Department, University of Illinois at Chicago, Illinois 60607 (United States); EPIR Technologies, Bolingbrook, Illinois 60440 (United States); Microphysics Laboratory, Physics Department, University of Illinois at Chicago, Illinois 60607 and EPIR Technologies, Bolingbrook, Illinois 60440 (United States)

2011-09-15T23:59:59.000Z

286

Growth and structure of epitaxial Pb{sub 1-x}Mn{sub x}Se(Ga) films  

Science Conference Proceedings (OSTI)

The growth and structure of Pb{sub 1-x}Mn{sub x}Se (Ga) (N{sub Ga} = 0.8 at %) films with thicknesses of 0.3-0.5 {mu}m, grown on single-crystal PbSe{sub 1-x}S{sub x} (100) substrates by molecular-beam epitaxy, have been studied. It is established that films grow in a face-centered cubic lattice with the (100) orientation, reproducing the substrate orientation. The optimal conditions for obtaining photosensitive epitaxial films with perfect crystal structure are determined (W{sub 1/2} = 70-80'').

Nuriyev, I. R., E-mail: mhagiyev@yahoo.com; Gadzhiyev, M. B.; Sadigov, R. M. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2009-03-15T23:59:59.000Z

287

First Direct Double- Decay Q-Value Measurement of 82Se in Support of Understanding the Nature of the Neutrino  

Science Conference Proceedings (OSTI)

In anticipation of results from current and future double- decay studies, we report a measurement resulting in a 82Se double- decay Q value of 2997.9(3) keV, an order of magnitude more precise than the currently accepted value. We also present preliminary results of a calculation of the 82Se neutrinoless double- decay nuclear matrix element that corrects in part for the small size of the shell model single-particle space. The results of this work are important for designing next generation double- decay experiments and for the theoretical interpretations of their observations.

Lincoln, David L. [NSCL, Michigan State University, East Lansing; Holt, Jason D. [Technische Univ. Darmstadt/GSI/UTK/ORNL; Bollen, Georg [NSCL, Michigan State University, East Lansing; Brodeur, Maxime [NSCL, Michigan State University, East Lansing; Bustabad, Scott [NSCL, Michigan State University, East Lansing; Engel, Jonathan [University of North Carolina, Chapel Hill; Novario, Samuel J. [NSCL, Michigan State University, East Lansing; Redshaw, Matthew [NSCL, Michigan State Univ.,/Central Michigan Univ.-Mt. Pleasant; Ringle, Ryan [NSCL, Michigan State University, East Lansing; Schwarz, Stefan [NSCL, Michigan State University, East Lansing

2013-01-01T23:59:59.000Z

288

Investigations of CuInSe2 Thin Films and Contacts: Annual Subcontract Report, 1 January 1990 - 28 February 1991  

DOE Green Energy (OSTI)

This report describes research into electrical contacts for copper indium diselenide (CulnSe2) polycrystalline thin films used for solar cell applications. Molybdenum contacts have historically been the most promising for heterojunction solar cells. This program studied contact stability by investigating thermally induced bilayer reactions between molybdenum and copper, indium, and selenium. Because selenization is widely used to fabricate CulnSe2 thin films for photovoltaic cells, a second part of the program investigated how the morphologies, phases, and reactions of pre-selenization Cu-In structures are affected by the deposition process and heat treatments.

Nicolet, M. A.

1991-10-01T23:59:59.000Z

289

Polarization-Driven Stark Shifts in Quantum Dot Luminescence from Single CdSe/oligo-PPV Nanoparticles  

Science Conference Proceedings (OSTI)

We demonstrate polarization-induced spectral shifts and associated linearly polarized absorption and emission in single CdSe/oligo-(phenylene vinylene) (CdSe/OPV) nanoparticles. A mechanism for these observations is presented in which charge separation from photoexcited ligands results in a significant Stark distortion of the quantum dot electron/hole wavefunctions. This distortion results in an induced linear polarization and an associated red shift in band-edge photoluminescence. These studies suggest the use of single quantum dots as local charge mobility probes.

Early, K. T.; Sudeep, P. K.; Emrick, Todd; Barnes, M. D.

2010-01-01T23:59:59.000Z

290

Emerging Weak Localization Effects on Topological Insulator-Insulating Ferromagnet (Bi_2Se_3-EuS) Interface  

E-Print Network (OSTI)

Thin films of topological insulator Bi_2Se_3 were deposited directly on insulating ferromagnetic EuS. Unusual negative magnetoresistance was observed near the zero field below the Curie temperature (T_C), resembling the weak localization effect; whereas the usual positive magnetoresistance was recovered above T_C. Such negative magnetoresistance was only observed for Bi_2Se_3 layers thinner than t~4nm, when its top and bottom surfaces are coupled. These results provide evidence for a proximity effect between a topological insulator and an insulating ferromagnet, laying the foundation for future realization of the half-integer quantized anomalous Hall effect in three-dimensional topological insulators.

Qi I. Yang; Merav Dolev; Li Zhang; Jinfeng Zhao; Alexander D. Fried; Elizabeth Schemm; Min Liu; Alexander Palevski; Ann F. Marshall; Subhash H. Risbud; Aharon Kapitulnik

2013-06-09T23:59:59.000Z

291

Wind profile above the surface boundary layer S.-E. Gryning (1), E. Batchvarova (2) and B. Brmmer (3)  

E-Print Network (OSTI)

Wind profile above the surface boundary layer S.-E. Gryning (1), E. Batchvarova (2) and B. Brümmer in predictions of the wind profile in the lowest hundreds me- ters of the atmosphere, being connected to the general increase in height of structures such as bridges, high houses and wind turbines. The hub height

292

Annealing effect on photovoltaic performance of CdSe quantum-dots-sensitized TiO2 nanorod solar cells  

Science Conference Proceedings (OSTI)

Large area rutile TiO2 nanorod arrays were grown on F:SnO2 (FTO) conductive glass using a hydrothermal method at low temperature. CdSe quantum dots (QDs) were deposited onto single-crystalline TiO2 nanorod arrays by a ...

Yitan Li, Lin Wei, Ruizi Zhang, Yanxue Chen, Jun Jiao

2012-01-01T23:59:59.000Z

293

Microblock rotations and fault coupling in SE Asia triple junction (Sulawesi, Indonesia) from GPS and earthquake slip vector data  

E-Print Network (OSTI)

Microblock rotations and fault coupling in SE Asia triple junction (Sulawesi, Indonesia) from GPS; accepted 23 May 2006; published 31 August 2006. [1] The island of Sulawesi, eastern Indonesia, is located, Indonesia) from GPS and earthquake slip vector data, J. Geophys. Res., 111, B08409, doi:10.1029/2005JB003963

Vigny, Christophe

294

Shear wave splitting in SE Brazil: an eect of active or fossil upper mantle ow, or both?  

E-Print Network (OSTI)

Shear wave splitting in SE Brazil: an e¡ect of active or fossil upper mantle £ow, or both?§ Maggy, Brazil c Universidade de SaBrazil Received 26 the structure of the upper mantle beneath southeastern Brazil using teleseismic shear wave splitting

Barruol, Guilhem

295

Characteristics of quadratic electro-optic effects and electro-absorption process in CdSe parabolic quantum dots  

Science Conference Proceedings (OSTI)

The nonlinear susceptibilities have been calculated theoretically for CdSe disk-like parabolic quantum dots by using a two-energy-level model in the strong-confinement regime. The confined wave functions and eigenenergies of excitons in parabolic quantum ... Keywords: Electro-optical effects, Excitons, Parabolic quantum dot

Shufei Xie; Guiguang Xiong; Xiaobo Feng; Zhihong Chen

2007-06-01T23:59:59.000Z

296

Measuring charge trap occupation and energy level in CdSe/ZnS quantum dots using a scanning tunneling microscope  

E-Print Network (OSTI)

We use a scanning tunneling microscope to probe single-electron charging phenomena in individual CdSe/ZnS (core/shell) quantum dots (QDs) at room temperature. The QDs are deposited on top of a bare Au thin film and form a ...

Bulovic, Vladimir

297

Phonon conduction in PbSe, PbTe, and PbTe1?xSex from first-principles calculations  

E-Print Network (OSTI)

We apply first-principles calculations to lead selenide (PbSe) and lead telluride (PbTe) and their alloys (PbTe[subscript 1?x]Se[subscript x]), which are potentially good thermoelectric materials, to investigate their ...

Tian, Zhiting

298

Synthesis of CdSe -- TiO2 Nanocomposites and Their Applications to TiO2 Sensitized Solar Cells  

Science Conference Proceedings (OSTI)

CdSe-TiO{sub 2} nanocomposites were synthesized via aminolysis of Ti-oleate complexes in the presence of CdSe nanocrystals, and their application as sensitizers for TiO{sub 2} solar cells was investigated. The formation of CdSe-TiO{sub 2} nanocomposites was confirmed using transmission electron microscopy and Raman spectroscopy. The emission spectrum of CdSe-TiO{sub 2} nanocomposites revealed photoinduced charge separation at the CdSe-TiO{sub 2} interface of the composite. The photocurrent-voltage properties of CdSe-TiO{sub 2}-sensitized TiO{sub 2} particle films compared favorably with those of CdSe-sensitized TiO{sub 2} films. Evidence was also found indicating that the TiO{sub 2} component of the composite protects CdSe against degradation during film annealing.

Kim, J. Y.; Choi, S. B.; Noh, J. H.; HunYoon, S.; Lee, S.; Noh, T. H.; Frank, A. J.; Hong, K. S.

2009-01-01T23:59:59.000Z

299

Phase Diagram of KxFe2-ySe2-zSz and the Suppression of its Superconducting State by an Fe2-Se=S Tetrahedron Distortion  

Science Conference Proceedings (OSTI)

We report structurally tuned superconductivity in a K{sub x}Fe{sub 2-y}Se{sub 2-z}S{sub z} (0 {le} z {le} 2) phase diagram. Superconducting T{sub c} is suppressed as S is incorporated into the lattice, eventually vanishing at 80% of S. The magnetic and conductivity properties can be related to stoichiometry on a poorly occupied Fe1 site and the local environment of a nearly fully occupied Fe2 site. The decreasing T{sub c} coincides with the increasing Fe1 occupancy and the overall increase in Fe stoichiometry from z = 0 to z = 2. Our results indicate that the irregularity of the Fe2-Se/S tetrahedron is an important controlling parameter that can be used to tune the ground state in the new superconductor family.

Lei H.; Abeykoon, M.; Bozin, E.S.; Wang, K.; Warren, J.B.; Petrovic, C.

2011-09-19T23:59:59.000Z

300

Phase Diagram of KxFe2-ySe2-zSz and the Suppression of its Superconducting State by an Fe2-Se/S Tetrahedron Distortion  

SciTech Connect

We report structurally tuned superconductivity in a K{sub x}Fe{sub 2-y}Se{sub 2-z}S{sub z} (0 {le} z {le} 2) phase diagram. Superconducting T{sub c} is suppressed as S is incorporated into the lattice, eventually vanishing at 80% of S. The magnetic and conductivity properties can be related to stoichiometry on a poorly occupied Fe1 site and the local environment of a nearly fully occupied Fe2 site. The decreasing T{sub c} coincides with the increasing Fe1 occupancy and the overall increase in Fe stoichiometry from z = 0 to z = 2. Our results indicate that the irregularity of the Fe2-Se/S tetrahedron is an important controlling parameter that can be used to tune the ground state in the new superconductor family.

H Lei; M Abeykoon; E Bozin; K Wang; J Warren; C Petrovic

2011-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Comparative Study of the Defect Point Physics and Luminescence of the Kesterites Cu2ZnSnS4 and Cu2ZnSnSe4 and Chalcopyrite Cu(In,Ga)Se2: Preprint  

DOE Green Energy (OSTI)

In this contribution, we present a comparative study of the luminescence of the kesterites Cu2ZnSnS4 (CZTS) and Cu2ZnSnSe4 (CZTSe) and their related chalcopyrite Cu(In,Ga)Se2 (CIGSe). Luminescence spectroscopy suggests that the electronic properties of Zn-rich, Cu-poor kesterites (both CZTS and CZTSe) and Cu-poor CIGSe are dictated by fluctuations of the electrostatic and chemical potentials. The large redshift in the luminescence of grain boundaries in CIGSe, associated with the formation of a neutral barrier is clearly observed in CZTSe, and, to some extent, in CZTS. Kesterites can therefore replicate the fundamental electronic properties of CIGSe.

Romero, M. J.; Repins, I.; Teeter, G.; Contreras, M.; Al-Jassim, M.; Noufi, R.

2012-08-01T23:59:59.000Z

302

Study of optical parameters of the Se-As chalcogenide semiconductor system containing EuF{sub 3} impurities  

Science Conference Proceedings (OSTI)

Optical properties of chalcogenide vitreous semiconductors of composition Se{sub 95}As{sub 5} containing different amounts of rare-earth metal fluorides (EuF{sub 3}) are studied, and, on this basis, the fundamental parameters, such as the refractive index and extinction coefficient, are determined. The dependences of these parameters on the content of EuF{sub 3} molecules are nonmonotonic: the low content (below 0.25 at %) aids in decreasing the parameters, whereas the high content tends to increase them. From the analysis of the results with consideration for the structural features of chalcogenide vitreous semiconductors of the Se{sub 95}As{sub 5} system (the presence of ordered high-coordinated microregions separated from each other by regions with a lower atomic density), it is concluded that the optical properties of the chalcogenide vitreous semiconductor system under study can be described in the context of Penn's model.

Isayev, A. I.; Mekhtiyeva, S. I.; Garibova, S. N., E-mail: sgaribova@rambler.ru; Alekperov, R. I.; Zeynalov, V. Z. [Azerbaijan National Academy of Sciences, Abdullaev Institute of Physics (Azerbaijan)

2011-08-15T23:59:59.000Z

303

Application of Single Wall Carbon Nanotubes as Transparent Electrodes in Cu(In,Ga)Se2-Based Solar Cells: Preprint  

DOE Green Energy (OSTI)

We present a new thin-film solar cell structure in which the traditional transparent conductive oxide electrode (ZnO) is replaced by a transparent conductive coating consisting of a network of bundled single-wall carbon nanotubes. Optical transmission properties of these coatings are presented in relation to their electrical properties (sheet resistance), along with preliminary solar cell results from devices made using CuIn1-xGaxSe2 thin-film absorber materials. Achieving an energy conversion efficiency of >12% and a quantum efficiency of {approx}80% demonstrate the feasibility of the concept. A discussion of the device structures will be presented considering the physical properties of the new electrodes comparing current-voltage results from the new solar cell structure and those from standard ZnO/CdS/Cu(In,Ga)Se2/Mo solar cells.

Contreras, M.; Barnes, T.; van de Lagemaat, J.; Rumbles, G.; Coutts, T. J.; Weeks, C.; Glatkowski, P.; Levitsky, I.; Peltola, J.

2006-05-01T23:59:59.000Z

304

Seeded Growth of Highly Luminescent CdSe/CdS Nano-Heterostructures with Rod and Tetrapod Morphologies  

SciTech Connect

We have demonstrated that seeded growth of nanocrystals offers a convenient way to design nanoheterostructures with complex shapes and morphologies by changing the crystalline structure of the seed. By using Use nanocrystals with wurtzite and zinc blende structure as seeds for growth of US nanorods, we synthesized CdSe/CdS heterostructure nanorods and nanotetrapods, respectively. Both of these structures showed excellent luminescentproperties, combining high photoluminescence efficiency (similar to 80 and similar to 50percent for nanorods and nanotetrapods, correspondingly), giant extinction coefficients (similar to 2 x 10(7) and similar to 1.5 x 10(8) M-1 cm (-1) at 350 nm for nanorods and nanotetrapods, correspondingly), and efficient energy transfer from the US arms into the emitting CdSe Core.

Talapin, Dmitri; Talapin, Dmitri V.; Nelson, James H.; Shevchenko, Elena V.; Aloni, Shaul; Sadtler, Bryce; Alivisatos, A. Paul

2007-08-09T23:59:59.000Z

305

Epitaxial growth and photochemical annealing of graded CdS/ZnS shells on colloidal CdSe nanorods  

SciTech Connect

We report the preparation and structural characterization of core/shell CdSe/CdS/ZnS nanorods. A graded shell of larger band gap is grown around CdSe rods using trioctylphosphine oxide as a surfactant. Interfacial segregation is used to preferentially deposit CdS near the core, providing relaxation of the strain at the core/shell interface. The reported synthesis allows for variation of the shell thickness between one and six monolayers, on core nanorods ranging from aspect ratios of 2:1 to 10:1. After an irreversible photochemical annealing process, the core/shell nanorods have increased quantum efficiencies and are stable in air under visible or UV excitation. In addition to their robust optical properties, these samples provide an opportunity for the study of the evolution of epitaxial strain as the shape of the core varies from nearly spherical to nearly cylindrical.

Manna, Liberato; Scher, Erik C.; Li, Liang-shi; Alivisatos, A. Paul

2002-02-14T23:59:59.000Z

306

Polarization-Induced Charge Distribution at Homogeneous Zincblende/Wurtzite Heterostructural Junctions in ZnSe Nanobelts  

DOE Green Energy (OSTI)

Homogeneous heterostructural wurtzite (WZ)/zincblende (ZB) junctions are successfully fabricated in ZnSe nanobelts. Polarity continuity across the ZB/WZ interface is demonstrated. The saw-tooth-like potential profile induced by spontaneous polarization across the WZ/ZB/WZ interfaces is identified directly at the nanoscale. The polarization-induced charge distribution across the homogeneous heterostructural interfaces is proposed as a viable alternative approach towards charge tailoring in semiconductor nanostructures.

Li, L.; Jin, L.; Wang, J.; Smith, D. J.; Yin, W. J.; Yan, Y.; Sang, H.; Choy, W. C. H.; McCartney, M. R.

2012-03-08T23:59:59.000Z

307

Thermoelectric materials evaluation program. Quarterly technical task report No. 46. [N-type GdSe/sub x/; P-type TPM-217 ((Cu, Ag)Se/sub 2/)  

DOE Green Energy (OSTI)

The following were conducted on the N-type gadolinium selenide materials: synthesis, analyses, processing, element contacting (sputter coating), compatibility and life testing, and thermal expansion measurements. The following were done on the P-type TPM-217 material (Cu/sub 1/./sub 97/Ag/sub 0/./sub 03/Se/sub 1/./sub 9945/): preparation and analyses, element contacting, stability, compatibility, and life and performance testing. Development and testing of couples and modules are also reported. 24 fig, 27 tables. (DLC)

Hampl, E.F. Jr.

1976-02-01T23:59:59.000Z

308

SE33 References  

Science Conference Proceedings (OSTI)

... In: DNA Fingerprinting: State of the Science, edited by Pena, SDJ, Chakraborty, R., Epplen, JT, and Jeffreys, AJ Basel, Switzerland:Birkauser Verlag ...

2007-07-10T23:59:59.000Z

309

Elastic Scattering Of {sup 6,7}Li+{sup 80}Se At Near And Above Barrier Energies  

SciTech Connect

In this work we propose to study the elastic scattering of the weakly bound projectiles {sup 6,7}Li on an intermediate mass target {sup 80}Se. From the experimental results presented here, precise angular distributions at energies below, around and above the nominal Coulomb barriers of the systems were obtained. The final goal of our work is to determine the characteristic parameters of the optical potential and use them to address the question of whether the usual threshold anomaly or the breakup threshold anomaly are present or not in these systems.

Fimiani, L.; Marti, G. V.; Capurro, O. A.; Barbara, E. de; Testoni, J. E.; Zalazar, L. [Laboratorio TANDAR, Comision Nacional de Energia Atomica, Av. Gral. Paz 1499 B1650KNA, San Martin (Argentina); Arazi, A.; Cardona, M. A.; Carnelli, P.; Figueira, J. M.; Hojman, D.; Martinez Heimann, D.; Negri, A. E.; Pacheco, A. J. [Laboratorio TANDAR, Comision Nacional de Energia Atomica, Av. Gral. Paz 1499 B1650KNA, San Martin (Argentina); CONICET, Av. Rivadavia 1917, C1033AAJ Buenos Aires (Argentina); Fernandez Niello, J. O. [Laboratorio TANDAR, Comision Nacional de Energia Atomica, Av. Gral. Paz 1499 B1650KNA, San Martin (Argentina); CONICET, Av. Rivadavia 1917, C1033AAJ Buenos Aires (Argentina); Universidad Nacional de General San Martin, Ayacucho 2197, B1650BWA San Martin (Argentina)

2010-08-04T23:59:59.000Z

310

Formation of core/shell-like ZnSe1?xTex nanocrystals due to equilibrium surface segregation  

Science Conference Proceedings (OSTI)

We report results of equilibrium surface segregation in ZnSe{sub 1?x}Te{sub x} nanocrystals based on a computational analysis of coupled compositional, structural, and volume relaxation of the nanocrystals that employs Monte Carlo and conjugate-gradient methods according to a first-principles-parameterized description of interatomic interactions. We have determined the equilibrium concentration distribution as a function of nanocrystal size and composition for nanocrystal morphologies that include faceted equilibrium crystal shapes. The results identify the nanoparticle size and composition ranges that allow for self-assembly of core/shell-like nanocrystal structures characterized by a Te-deficient core and a Te-rich shell.

Pandey, Sumeet C.; Mountziaris, T. J.; Venkataraman, Dhandapani; Maroudas, Dimitris

2010-01-01T23:59:59.000Z

311

Strain-Dependent Photoluminescence Behavior of CdSe/CdS Nanocrystals with Spherical, Linear, and Branched Topologies  

Science Conference Proceedings (OSTI)

The photoluminescence of CdSe/CdS core/shell quantum dots, nanorods, and tetrapods is investigated as a function of applied hydrostatic and non-hydrostatic pressure. The optoelectronic properties of all three nanocrystal morphologies are affected by strain. Furthermore, it is demonstrated that the unique morphology of a tetrapod is highly sensitive to non-isotropic stress environments. Seeded tetrapods can thereby serve as an optical strain gauge, capable of measuring forces on the order of nanonewtons. We anticipate that a nanocrystal strain gauge with optical readout will be useful for applications ranging from sensitive optomechanical devices to investigations of biomechanical processes.

Choi, Charina L.; Koski, Kristie J.; Sivasankar, Sanjeevi; Alivisatos, A. Paul

2009-08-13T23:59:59.000Z

312

L'entonnoir est ici : http://cfeditions.com/entonnoir/ Du flou cognitif au flou smiotique : ce qui se joue dans l'entonnoir de Google  

E-Print Network (OSTI)

qui se joue dans l'entonnoir de Google Gabriel Gallezot - Gabriel.GALLEZOT@unice.fr Brigitte Simonnot'a cessé de se renforcer et oblige à l'analyse. La position hégémonique du moteur de recherche Google dans valeurs qu'ils promeuvent et les pratiques dont ils font l'objet. Dans l'entonnoir de Google se joue à la

Paris-Sud XI, Université de

313

Absolute high-resolution Se{sup +} photoionization cross-section measurements with Rydberg-series analysis  

Science Conference Proceedings (OSTI)

Absolute single photoionization cross-section measurements for Se{sup +} ions were performed at the Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory using the photo-ion merged-beams technique. Measurements were made at a photon energy resolution of 5.5 meV from 17.75 to 21.85 eV spanning the 4s{sup 2}4p{sup 3} {sup 4}S{sub 3/2}{sup o} ground-state ionization threshold and the {sup 2}P{sub 3/2}{sup o},{sup 2}P{sub 1/2}{sup o},{sup 2}D{sub 5/2}{sup o}, and{sup 2}D{sub 3/2}{sup o} metastable state thresholds. Extensive analysis of the complex resonant structure in this region identified numerous Rydberg series of resonances and obtained the Se{sup 2+} 4s{sup 2}4p{sup 23}P{sub 2} and 4s{sup 2}4p{sup 21}S{sub 0} state energies. In addition, particular attention was given to removing significant effects in the measurements due to a small percentage of higher-order undulator radiation.

Esteves, D. A. [University of Nevada, Reno, Department of Physics, MS 0220, Reno, Nevada 89557 (United States); Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Bilodeau, R. C. [Western Michigan University, MS 5252, 1903 W. Michigan Ave, Kalamazoo, Michigan 49008 (United States); Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Sterling, N. C. [Department of Physics and Astronomy, Michigan State University, 3248, Biomedical Physical Sciences, East Lansing, Michigan 48824-2320 (United States); Phaneuf, R. A. [University of Nevada, Reno, Department of Physics, MS 0220, Reno, Nevada 89557 (United States); Kilcoyne, A. L. D.; Red, E. C.; Aguilar, A. [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

2011-07-15T23:59:59.000Z

314

Phase identification and control of thin films deposited by co-evaporation of elemental Cu, Zn, Sn, and Se  

Science Conference Proceedings (OSTI)

Kesterite thin films [(i.e., Cu{sub 2}ZnSn(S,Se){sub 4} and related alloys] have been the subject of recent interest for use as an absorber layer for thin film photovoltaics due to their high absorption coefficient (>10{sup 4} cm{sup -1}), their similarity to successful chalcopyrites (like CuInxGa{sub 1-x}Se{sub 2}) in structure, and their earth-abundance. The process window for growing a single-phase kesterite film is narrow. In this work, we have documented, for our 9.15%-efficient kesterite co-evaporation process, (1) how appearance of certain undesirable phases are controlled via choice of processing conditions, (2) several techniques for identification of phases in these films with resolution adequate to discern changes that are important to device performance, and (3) reference measurements for those performing such phase identification. Data from x-ray diffraction, x-ray fluorescence, Raman scattering, scanning electron microscopy, energy dispersive spectroscopy, and current-voltage characterization are presented.

Vora, Nirav; Blackburn, Jeffrey; Repins, Ingrid; Beall, Carolyn; To, Bobby; Pankow, Joel; Teeter, Glenn; Young, Matthew; Noufi, Rommel [National Renewable Energy Laboratory, 1617 Cole Blvd., MS 3219, Golden, Colorado 80401 (United States)

2012-09-15T23:59:59.000Z

315

Phase Identification and Control of Thin Films Deposited by Co-Evaporation of Elemental Cu, Zn, Sn, and Se  

Science Conference Proceedings (OSTI)

Kesterite thin films (i.e., Cu{sub 2}ZnSn(S,Se){sub 4} and related alloys) have been the subject of recent interest for use as an absorber layer for thin film photovoltaics due to their high absorption coefficient (> 10{sup 4} cm{sup -1}), their similarity to successful chalcopyrites (like CuInxGa{sub 1-x}Se{sub 2}) in structure, and their earth-abundance. The process window for growing a single-phase kesterite film is narrow. In this work, we have documented, for our 9.15%-efficient kesterite co-evaporation process, (1) how appearance of certain undesirable phases are controlled via choice of processing conditions, (2) several techniques for identification of phases in these films with resolution adequate to discern changes that are important to device performance, and (3) reference measurements for those performing such phase identification. Data from x-ray diffraction, x-ray fluorescence, Raman scattering, scanning electron microscopy, energy dispersive spectroscopy, and current-voltage characterization are presented.

Vora, N.; Blackburn, J.; Repins, I.; Beall, C.; To, B.; Pankow, J.; Teeter, G.; Young, M.; Noufi, R.

2012-09-01T23:59:59.000Z

316

CdSe quantum dots sensitized mesoporous TiO2 solar cells with CuSCN as solid-state electrolyte  

Science Conference Proceedings (OSTI)

Mesoporous TiO2 is functionalized by 3-mercaptopropyl trimethyoxysilane (MPTMS) to anchor CdSe quantum dots (QDs). The resulting TiO2/CdSe is combined with solid-state electrolyte (CuSCN) to form solar cells. It is found that the ...

Guanbi Chen; Lei Wang; Yu Zou; Xia Sheng; Hongjuan Liu; Xiaodong Pi; Deren Yang

2011-01-01T23:59:59.000Z

317

Electroluminescence and phototrigger effect in single crystals of GaS{sub x}Se{sub 1-x} alloys  

Science Conference Proceedings (OSTI)

The effects of switching and electroluminescence as well as the interrelation between these effects in single crystals of GaS{sub x}Se{sub 1-x} alloys are detected and studied. It is established that the threshold voltage for switching depends on temperature, resistivity, and composition of alloys, and also on the intensity and spectrum of photoactive light. As a result, a phototrigger effect is observed; this effect arises under irradiation with light from the fundamental-absorption region. Electroluminescence is observed in the subthreshold region of the current-voltage characteristic; the electroluminescence intensity decreases drastically to zero as the sample is switched from a high-resistivity state to a low-resistivity state. Experimental data indicating that the electroluminescence and the switching effect are based on the injection mechanism (as it takes place in other layered crystals of the III-V type) are reported.

Kyazym-Zade, A. G., E-mail: bsu_aydin@yahoo.com; Salmanov, V. M.; Mokhtari, A. G.; Dadashova, V. V.; Agaeva, A. A. [Baku State University (Azerbaijan)

2008-05-15T23:59:59.000Z

318

Exciton photoluminescence and energy in a percolation cluster of ZnSe quantum dots as a fractal object  

SciTech Connect

The results of studies of samples containing ZnSe quantum dots with a density corresponding to or considerably higher than the exciton percolation threshold, at which quantum dots form conglomerates, are reported. Excitonic emission from a percolation cluster of bound quantum dots as a fractal object is observed for the first time. Analysis of the structure of the photoluminescence spectra shows that the spectra are determined by the contribution of exciton states that belong to different structural elements of the percolation cluster, specifically, to the skeleton (backbone), dangling (dead) ends, and internal hollow spaces. A qualitative model is proposed to interpret the dependence of the exciton energy in these structural elements on the concentration of quantum dots in the material.

Bondar, N. V., E-mail: jbond@iop.kiev.ua; Brodyn, M. S. [National Academy of Sciences of Ukraine, Institute of Physics (Ukraine)

2012-05-15T23:59:59.000Z

319

Local Built-in Potential on Grain Boundary of Cu(In,Ga)Se2 Thin Films  

DOE Green Energy (OSTI)

We report on a direct measurement of two-dimensional potential distribution on the surface of Cu(In,Ga)Se2 (CIGS) thin films using a nanoscale electrical characterization of scanning Kelvin probe microscopy (SKPM). The potential measurement reveals a higher surface potential or a smaller work function on grain boundaries (GBs) of the film than on the grain surfaces. This demonstrates the existence of a local built-in potential on GBs and that the GB is positively charged. The role of the built-in potential in device performance was further examined by tuning Ga content or band gap of the film. With increasing Ga content, the GB potential drops sharply in a Ga range of 28%-38%. Comparing the change in the built-in potential to the theoretical and experimental photoconversion efficiencies, we conclude that the potential plays a significant role in the device conversion efficiency of NREL's three-stage CIGS device.

Jiang, C.-S.; Noufi, R.; Ramanathan, K.; AbuShama, J. A.; Moutinho, H. R.; Al-Jassim, M. M.

2005-01-01T23:59:59.000Z

320

A Large Blue Shift of the Biexciton State in Tellurium Doped CdSe Colloidal Quantum Dots  

E-Print Network (OSTI)

The exciton-exciton interaction energy of Tellurium doped CdSe colloidal quantum dots is experimentally investigated. The dots exhibit a strong Coulomb repulsion between the two excitons, which results in a huge measured biexciton blue shift of up to 300 meV. Such a strong Coulomb repulsion implies a very narrow hole wave function localized around the defect, which is manifested by a large Stokes shift. Moreover, we show that the biexciton blue shift increases linearly with the Stokes shift. This result is highly relevant for the use of colloidal QDs as optical gain media, where a large biexciton blue shift is required to obtain gain in the single exciton regime. The progress in chemical synthesis of colloidal quantum dots, provides a way to produce high quantum yield nanocrystals out of a variety of substances, and allows control over their size, shape and composition. Because of the strong charge confinement within the dots, their electronic excitation

Assaf Avidan; Dan Oron

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Electron Drift-Mobility Measurements in Polycrystalline CuIn 1-xGaxSe2 Solar Cells  

Science Conference Proceedings (OSTI)

We report photocarrier time-of-flight measurements of electron drift mobilities for the p-type CuIn{sub 1-x}Ga{sub x}Se{sub 2} films incorporated in solar cells. The electron mobilities range from 0.02 to 0.05 cm{sup 2}/Vs and are weakly temperature-dependent from 100-300 K. These values are lower than the range of electron Hall mobilities (2-1100 cm{sup 2}/Vs) reported for n-type polycrystalline thin films and single crystals. We propose that the electron drift mobilities are properties of disorder-induced mobility edges and discuss how this disorder could increase cell efficiencies.

Dinca, S. A.; Schiff, E. A.; Shafarman, W. N.; Egaas, B.; Noufi, R.; Young, D. L.

2012-03-05T23:59:59.000Z

322

Reversible tuning of the surface state in a pseudobinary Bi2(Te-Se)3 topological insulator  

SciTech Connect

We use angle-resolved photoemission spectroscopy to study a nontrivial surface state in a pseudobinary Bi2Te2.8Se0.2 topological insulator. We show that, unlike previously studied binaries, this is an intrinsic topological insulator with the conduction bulk band residing well above the chemical potential. Our data indicate that under a good vacuum condition there are no significant aging effects for more than two weeks after cleaving. We also demonstrate that the shift of the Kramers point at low temperature is caused by UV-assisted absorption of molecular hydrogen. Our findings pave the way for applications of these materials in devices and present an easy scheme to tune their properties.

Jiang, Rui; Wang, Lin-Lin; Huang, Mianliang; Dhaka, Rajendra S.; Johnson, Duane D.; Lograsso, Thomas A.; Kaminski, Adam

2012-08-10T23:59:59.000Z

323

Aggregation Kinetics of Metal Chalcogenide Nanocrystals: Generation of Transparent CdSe(ZnS) Core(Shell) Gels  

Science Conference Proceedings (OSTI)

Transparent CdSe (ZnS) core (shell) sol–gel materials have potential uses in optoelectronic applications such as light-emitting diodes (LEDs) due to their strong luminescence properties and the potential for charge transport through the prewired nanocrystal (NC) network of the gel. However, typical syntheses of metal chalcogenide gels yield materials with poor transparency. In this work, the mechanism and kinetics of aggregation of two sizes of CdSe (ZnS) core (shell) NCs, initiated by removal of surface thiolate ligands using tetranitromethane (TNM) as an oxidant, were studied by means of time-resolved dynamic light scattering (TRDLS); the characteristics of the resultant gels were probed by optical absorption, transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS). At low concentrations of NCs (ca. 4 × 10{sup –7} M), the smaller, green-emitting NCs aggregate faster than the larger, orange-emitting NCs, for a specific oxidant concentration. The kinetics of aggregation have a significant impact on the macroscopic properties (i.e., transparency) of the resultant gels, with the transparency of the gels decreasing with the increase of oxidant concentration due the formation of larger clusters at the gel point and a shift away from a reaction-limited cluster-aggregation (RLCA) mechanism. This is further confirmed by analyses of the gel structures by SAXS and TEM. Likewise, the larger orange-emitting particles also produce larger aggregates at the gel point, leading to lower transparency. The ability to control the transparency of chalcogenide gels will enable their properties to be tuned in order to address application-specific needs in optoelectronics.

Korala, Lasantha; Brock, Stephanie

2012-01-01T23:59:59.000Z

324

Alternative fabrication techniques for high-efficiency CuInSe{sub 2} and CuInSe{sub 2}-alloy films and cells. Final subcontract report, 1 March 1990--31 August 1992  

DOE Green Energy (OSTI)

Work performed during the course of this subcontract has led to improved CuInSe{sub 2} (CIS) processing techniques and materials resulting in improved solar cell performance (up to 10% active area efficiency) based on a thick conductive evaporated CdS window layer and an indium-tin-oxide transparent conductor. Modeling of the device performance has indicated that an optimal CdS thickness should exist if pinholes occur in the CIS layer (for example, due to adhesion failures) leading to shunts between the CdS and the back contact. Pinholes in the CIS layer have been dramatically reduced by the use of a Cu-Mo two-phase back contact metallization resulting from significant increases in adhesion between the CIS and the back contact. Controlled leaching of the Cu from the back contact apparently contributes to this improvement without degradation of the solar cells. Finally, CIS has been grown epitaxially on GaAs. Preliminary results suggest explanations for the morphology and defect structures of polycrystalline layers used in devices as well as indicating the general mechanism for growth of CIS by vapor phase methods.

Rockett, A.; Yang, L.C.; Kenshole, G.; Banda, E.; Feen, A. [Illinois Univ., Urbana, IL (United States)

1994-07-01T23:59:59.000Z

325

Lithium/selenium secondary battery for implantation. Annual report, 23 June 1970--30 July 1971. [Li/Se and Li--Al/S--Se--Tl, 400 C, 30 W  

DOE Green Energy (OSTI)

A lithium/selenium battery is being developed as an implantable power source for an artificial heart or heart-assist device. During this period, the principal effort was directed toward extending the lifetimes of two types of lithium/selenium cells operating at about 400C. One type consists of a liquid lithium anode, a liquid selenium cathode, and a rigid past electrolyte composed of a molten-salt eutectic and lithium aluminate filler. The other type employs a molten-salt-eutectic liquid electrolyte, a solid lithium--aluminum alloy anode, and an immobilized sulfur--selenium--thallium alloy cathode. Cell cycle life had been severely limited by the transport of selenium to the anode; long-term, steady-state operation of single cells using Se--Tl cathodes demonstrated that this problem has been solved. An improved cell design (employing a liquid electrolyte and solid lithium--aluminum anode) which appears capable of meeting or exceeding the capacity density, power density, and weight objectives for an implantable 30-W battery is presented.

Chilenskas, A.A.; Walsh, W.J.; Trevorrow, L.E.; Webster, D.S.; Cairns, E.J.

1971-10-01T23:59:59.000Z

326

Correlation of polycrystalline Cu(In,Ga)Se{sub 2} device efficiency with homojunction depth and interfacial structure: X-ray photoemission and positron annihilation spectroscopic characterization  

DOE Green Energy (OSTI)

Angled-resolved high resolution photoemission measurements on valence band electronic structure and Cu 2p, In 3d, Ga 2p, and Se 3d core lines were used to evaluate surface and near-surface chemistry of CuInSe{sub 2} and Cu(In,Ga)Se{sub 2} device grade thin films. XPS compositional depth profiles were also acquired from the near-surface region, and bonding of the Cu, In, Ga, and Se was determined as a function of depth. A Cu-poor region was found, indicating CuIn{sub 5}Se{sub 8} or a CuIn{sub 3}Se{sub 5}-In{sub 2}Se{sub 3} mixture. Correlation between the depth of the Cu-poor region/bulk interface and device efficiency showed that the depth was 115 {angstrom} for a 16.4% CIGS device, 240 {angstrom} for a 15.0% CIGS, and 300 {angstrom} for 14.0% CIGS, with similar trends for CIS films. The surface region is n-type, the bulk is p-type, with a 0.5 eV valence band offset. Depth of homojunction may be the determining factor in device performance. Positron annihilation spectroscopy gave similarly illuminating results.

Nelson, A.J.; Sobol, P.E.; Gabor, A.M.; Contreras, M.A. [National Renewable Energy Lab., Golden, CO (United States); Asoka-Kumar, P.; Lynn, K.G. [Brookhaven National Lab., Upton, NY (United States)

1994-06-01T23:59:59.000Z

327

www.mdpi.com/journal/ijms Cytotoxic Effects of CdSe Quantum Dots on Maturation of Mouse Oocytes, Fertilization, and Fetal Development  

E-Print Network (OSTI)

Abstract: Quantum dots (QDs) are useful novel luminescent markers, but their embryonic toxicity is yet to be fully established, particularly in oocyte maturation and sperm fertilization. Earlier experiments by our group show that CdSe-core QDs have cytotoxic effects on mouse blastocysts and are associated with defects in subsequent development. Here, we further investigate the influence of CdSe-core QDs on oocyte maturation, fertilization, and subsequent pre- and postimplantation development. CdSe-core QDs induced a significant reduction in the rates of oocyte maturation, fertilization, and in vitro embryo development, but not ZnS-coated CdSe QDs. Treatment of oocytes with 500 nM CdSe-core QDs during in vitro maturation (IVM) led to increased resorption of postimplantation embryos and decreased placental and fetal weights. To our knowledge, this is the first study to report the negative impact of CdSe-core QDs on mouse oocyte development. Moreover, surface modification of CdSe-core QDs with ZnS effectively prevented this cytotoxicity.

Ming-shu Hsieh; Nion-heng Shiao; Wen-hsiung Chan

2009-01-01T23:59:59.000Z

328

The Effect of War and Its Aftermath on Land Use and Land Cover in Jinotega, Nicaragua  

E-Print Network (OSTI)

Return Outcomes in Bosnia- Herzegovina a Decade Beyond War.Agricultural Land in Bosnia-Herzegovina After the 1992-1995was seen after the Bosnia-Herzegovina war when the war left

Zeledon, Esther Beatriz

2010-01-01T23:59:59.000Z

329

From Resource Management to Political Activism: Civil Society Participation in Nicaragua's Rural Water Governance  

E-Print Network (OSTI)

of differentiated energy tariffs for CAPS whose waterof differentiated energy tariffs for CAPS (Art. 25); andinclude differentiated energy tariffs, tax exemptions for

Romano, Sarah T.

2012-01-01T23:59:59.000Z

330

From Resource Management to Political Activism: Civil Society Participation in Nicaragua's Rural Water Governance  

E-Print Network (OSTI)

government officials and state agencies. Successful CPRsor agreements, between state agencies and the internationalofficials, and state agencies? Drawing upon interviews with

Romano, Sarah T.

2012-01-01T23:59:59.000Z

331

Figure 1. Nicaragua at night. The circled area is the Bluefields region.  

E-Print Network (OSTI)

volt car battery, a radio, and the bulbs, switches and wiring needed to provide electric lighting of the world's population, live without access to electricity. Over 99% of these people live in developing countries and four out of five live in rural areas1 . As electricity is the most efficient fuel source

Kammen, Daniel M.

332

The Hybridization of CdSe/ZnS Quantum Dot on InGaN Light-Emitting Diodes for Color Conversion  

Science Conference Proceedings (OSTI)

We have demonstrated the fabrication and characterization of hybrid CdSe/ZnS quantum dot (QD)-InGaN blue LEDs. The chemically synthesized red light (lambda = 623 nm) QD solutions with different concentrations were dropped onto the blue InGaN LEDs with ... Keywords: CdSe/ZnS quantum dots, CdSe/ZnS quantum dots (QDs), InGaN quantum well and hybrid LEDs, InGaN quantum well and hybrid light-emitting diodes

Ying-Chih Chen; Chun-Yuan Huang; Yan-Kuin Su; Wen-Liang Li; Chia-Hsien Yeh; Yu-Cheng Lin

2008-07-01T23:59:59.000Z

333

Effect of heteroboundary spreading on the properties of exciton states in Zn(Cd)Se/ZnMgSSe quantum wells  

Science Conference Proceedings (OSTI)

Exciton states in Zn(Cd)Se/ZnMgSSe quantum wells with different diffusion spreading of interfaces are studied by optical spectroscopy methods. It is shown that the emission spectrum of quantum wells at low temperatures is determined by free excitons and bound excitons on neutral donors. The nonlinear dependence of the stationary photoluminescence intensity on the excitation power density and the biexponential luminescence decay are explained by the neutralization of charged defects upon photoexcitation of heterostructures. With the stationary illumination on, durable (about 40 min) reversible changes in the reflection coefficient near the exciton resonances of quantum wells are observed. It is shown that, along with the shift of exciton levels, the spreading of heteroboundaries leads to three effects: an increase in the excitonphonon interaction, an increase in the energy shift between the emission lines of free and bound excitons, and a decrease in the decay time of exciton luminescence in a broad temperature range. The main reasons for these effects are discussed.

Adiyatullin, A. F., E-mail: bert-sp@yandex.ru; Belykh, V. V.; Kozlovsky, V. I.; Krivobok, V. S., E-mail: krivobok@lebedev.ru; Martovitsky, V. P.; Nikolaev, S. N. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

2012-11-15T23:59:59.000Z

334

The influence of {gamma}-ray radiation on electrical properties of CuGaSe{sub 2}  

Science Conference Proceedings (OSTI)

The effect of {gamma}-ray radiation on the conductivity of low-resistivity (10{sup 2}2-10{sup 4} {Omega} cm) and high-resistivity (10{sup 5}-10{sup 7} {Omega} cm) CuGaSe{sub 2} single crystals has been studied in the temperature range 77-330 K. It is found that the resistivity of low-resistivity samples increases as the dose of {gamma}-ray radiation is increased, while the resistivity of high-resistivity samples is practically independent of the radiation dose. It is assumed that a decrease in the conductivity of the low-resistivity samples occurs owing to scattering of free charge carriers at defects (charged centers) formed as a result of irradiation with {gamma}-ray photons. It is found that the dose of the {gamma}-ray irradiation does not affect the temperature dependence of resistivity in the low- and high-resistivity samples in the temperature range 77-300 K.

Kasumoglu, I.; Kerimova, T. G., E-mail: ktaira@physics.ab.az; Mamedova, I. A. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2011-01-15T23:59:59.000Z

335

Structural, Optical and Electrical Properties of PbSe Nanocrystal Solids Treated Thermally or with Simple Amines  

Science Conference Proceedings (OSTI)

We describe the structural, optical, and electrical properties of films of spin-cast, oleate-capped PbSe nanocrystals that are treated thermally or chemically in solutions of hydrazine, methylamine, or pyridine to produce electronically coupled nanocrystal solids. Postdeposition heat treatments trigger nanocrystal sintering at {approx}200 C, before a substantial fraction of the oleate capping group evaporates or pyrolyzes. The sintered nanocrystal films have a large hole density and are highly conductive. Most of the amine treatments preserve the size of the nanocrystals and remove much of the oleate, decreasing the separation between nanocrystals and yielding conductive films. X-ray scattering, X-ray photoelectron and optical spectroscopy, electron microscopy, and field-effect transistor electrical measurements are used to compare the impact of these chemical treatments. We find that the concentration of amines adsorbed to the NC films is very low in all cases. Treatments in hydrazine in acetonitrile remove only 2-7% of the oleate yet result in high-mobility n-type transistors. In contrast, ethanol-based hydrazine treatments remove 85-90% of the original oleate load. Treatments in pure ethanol strip 20% of the oleate and create conductive p-type transistors. Methylamine- and pyridine-treated films are also p-type. These chemically treated films oxidize rapidly in air to yield, after short air exposures, highly conductive p-type nanocrystal solids. Our results aid in the rational development of solar cells based on colloidal nanocrystal films.

Law, M.; Luther, J. M.; Song, Q.; Hughes, B. K.; Perkins, C. L.; Nozik, A. J.

2008-01-01T23:59:59.000Z

336

Improved Energy Conversion Efficiency in Wide-Bandgap Cu(In,Ga)Se2 Solar Cells: Preprint  

DOE Green Energy (OSTI)

This report outlines improvements to the energy conversion efficiency in wide bandgap (Eg>1.2 eV) solar cells based on CuIn1-xGaxSe2. Using (a) alkaline containing high temperature glass substrates, (b) elevated substrate temperatures 600?C-650?C and (c) high vacuum evaporation from elemental sources following NREL's three-stage process, we have been able to improve the performance of wider bandgap solar cells with 1.218% for absorber bandgaps ~1.30 eV and efficiencies ~16% for bandgaps up to ~1.45 eV. In comparing J-V parameters in similar materials, we establish gains in the open-circuit voltage and, to a lesser degree, the fill factor value, as the reason for the improved performance. The higher voltages seen in these wide gap materials grown at high substrate temperatures may be due to reduced recombination at the grain boundary of such absorber films. Solar cell results, absorber materials characterization, and experimental details are reported.

Contreras, M.; Mansfield, L.; Egaas, B.; Li, J.; Romero, M.; Noufi, R.; Rudiger-Voigt, E.; Mannstadt, W.

2011-07-01T23:59:59.000Z

337

Isospin symmetry breaking at high spins in the mirror pair {sup 67}Se and {sup 67}As  

Science Conference Proceedings (OSTI)

Recent experimental data have revealed large mirror energy differences (MED) between high-spin states in the mirror nuclei {sup 67}Se and {sup 67}As, the heaviest pair where MED have been determined so far. The MED are generally attributed to the isospin symmetry breaking caused by the Coulomb force and by the isospin-nonconserving part of the nucleon-nucleon residual interaction. The different contributions of the various terms have been extensively studied in the fp shell. By employing large-scale shell-model calculations, we show that the inclusion of the g{sub 9/2} orbit causes interference between the electromagnetic spin-orbit and the Coulomb monopole radial terms at high spin. The large MED are attributed to the aligned proton pair excitations from the p{sub 3/2} and f{sub 5/2} orbits to the g{sub 9/2} orbit. The relation of the MED to deformation is discussed.

Kaneko, K. [Department of Physics, Kyushu Sangyo University, Fukuoka 813-8503 (Japan); Tazaki, S. [Department of Applied Physics, Fukuoka University, Fukuoka 814-0180 (Japan); Mizusaki, T. [Institute of Natural Sciences, Senshu University, Tokyo 101-8425 (Japan); Sun, Y.; Hasegawa, M. [Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China); De Angelis, G. [Laboratori Nazionali di Legnaro dell'INFN, Legnaro (Padova), I-35020 (Italy)

2010-12-15T23:59:59.000Z

338

CdSe/ZnS quantum dots based electrochemical immunoassay for the detection of phosphorylated bovine serum albumin  

SciTech Connect

A CdSe/ZnS quantum dot (QD) based electrochemical immunoassay of phosphorylated bovine serum albumin as a protein biomarker is presented. The QDs were used as labels and were conjugated with the secondary anti-phosphoserine antibody in a heterogeneous sandwich immunoassay. First, the primary BSA antibody was immobilized on polystyrene microwells, followed by the addition of BSA-OP. After that, the QD-labeled anti-phosphoserine antibody was added into microwells for immunorecognition. Finally, the bound QD was dissolved in an acid-dissolution step and was detected by electrochemical stripping analysis. The measured current responses were proportional to the concentration of BSA-OP. Under optimal conditions, the voltammetric response was linear over the range of 0.5 - 500 ng mL-1 of BSA-OP, with a detection limit of 0.5 ng mL-1 at a deposition potential of -1.2 V for 120 s. It also shows good reproducibility with a relative standard deviation of 8.6% of six times determination of 25 ng mL-1 of BSA-OP. This QD-based electrochemical immunoassay offers great promise for simple and cost-effective analysis of protein biomarkers.

Pinwattana, Kulwadee; Wang, Jun; Lin, Chiann Tso; Wu, Hong; Du, Dan; Lin, Yuehe; Chailapakul, Orawon

2010-11-15T23:59:59.000Z

339

Bright three-band white light generated from CdSe/ZnSe quantum dot-assisted Sr{sub 3}SiO{sub 5}:Ce{sup 3+},Li{sup +}-based white light-emitting diode with high color rendering index  

SciTech Connect

In this study, bright three-band white light was generated from the CdSe/ZnSe quantum dot (QD)-assisted Sr{sub 3}SiO{sub 5}:Ce{sup 3+},Li{sup +}-based white light-emitting diode (WLED). The CdSe/ZnSe core/shell structure was confirmed by energy dispersive x-ray spectroscopy and x-ray photoelectron spectroscopy. The CdSe/ZnSe QDs showed high quantum efficiency (79%) and contributed to the high luminous efficiency ({eta}{sub L}) of the fabricated WLED. The WLED showed bright natural white with excellent color rendering property ({eta}{sub L}=26.8 lm/W, color temperature=6140 K, and color rendering index=85) and high stability against the increase in forward bias currents from 20 to 70 mA.

Jang, Ho Seong; Kwon, Byoung-Hwa; Jeon, Duk Young [Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701 (Korea, Republic of); Yang, Heesun [Department of Materials Science and Engineering, Hongik University, 72-1, Sangsu-dong, Mapo-gu, Seoul 121-791 (Korea, Republic of)

2009-10-19T23:59:59.000Z

340

X-ray diffraction study of (TlInSe{sub 2}){sub 1-x}(TlGaTe{sub 2}){sub x} crystal system  

Science Conference Proceedings (OSTI)

The crystallographic and dynamic characteristics of TlInSe{sub 2} and TlGaTe{sub 2} crystals have been studied by X-ray diffraction in the temperature range of 85-320 K. The temperature dependences of the unit-cell parameters a of TlInSe{sub 2} and TlGaTe{sub 2} crystals, as well as their coefficients of thermal expansion along the [100] direction, are determined. The concentration dependences of the unit-cell parameters a and c for (TlInSe{sub 2}){sub 1-x}(TlGaTe{sub 2}){sub x} crystals are measured. Anomalies are found in the temperature dependences of the unit-cell parameters a and, correspondingly, the coefficient of thermal expansion, indicating the existence of phase transitions in TlInSe{sub 2} and TlGaTe{sub 2} crystals.

Sheleg, A. U., E-mail: sheleg@ifttp.bas-net.by; Zub, E. M.; Yachkovskii, A. Ya. [National Academy of Sciences of Belarus, State Scientific and Production Association, Scientific and Practical Materials Research Center (Belarus); Mustafaeva, S. N.; Kerimova, E. M. [Azerbaijan National Academy of Sciences, Institute of Physics (Azerbaijan)

2012-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Ford/BASF SE/UM Activities in Support of the Hydrogen Storage Engineering Center of Excellence - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

51 51 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Michael Veenstra (Primary Contact, Ford), Andrea Sudik (Ford), Donald Siegel (UM), Justin Purewal (UM), Chunchuan Xu (UM), Yang Ming (UM), Manuela Gaab (BASF SE), Stefan Maurer (BASF SE), Ulrich Müller (BASF SE), Jun Yang (Ford) Ford Motor Company 2101 Village Road Dearborn, MI 48121 Phone: (313) 322-3148 Email: mveenstr@ford.com DOE Managers HQ: Ned Stetson Phone: (202) 586-9995 Email: Ned.Stetson@ee.doe.gov GO: Jesse Adams Phone: (720) 356-1421 Email: Jesse.Adams@go.doe.gov Contract Number: DE-FC36-GO19002 Subcontractors: * University of Michigan, Ann Arbor, MI * BASF SE, Ludwigshafen, Germany Project Start Date: February 1, 2009

342

Limitation of the Open-Circuit Voltage Due to Metastable Intrinsic Defects in Cu(In,Ga)Se2 and Strategies to Avoid These Defects: Preprint  

DOE Green Energy (OSTI)

This paper summarizes using first-principles defect theory to investigate the role of intrinsic point defects in the limitation of the open-circuit voltage (VOC) in Cu(In,Ga)Se2 solar cells.

Lany, S.; Zunger, A.

2008-05-01T23:59:59.000Z

343

Is integration of communication and technical instruction across the SE curriculum a viable strategy for improving the real-world communication abilities of software engineering graduates?  

Science Conference Proceedings (OSTI)

Software engineering educators and trainers are acutely aware that software engineering graduates need strong real-world communication abilities. The National Science Foundation is supporting a three-year project in which industry professionals, CS/SE ...

Gerald C. Gannod; Paul V. Anderson; Janet E. Burge; Andrew Begel

2011-05-01T23:59:59.000Z

344

Direct Observation of sp-d Exchange Interactions in Colloidal Mn2+- and Co2+-Doped CdSe Quantum Dots  

SciTech Connect

The defining attribute of a diluted magnetic semiconductor (DMS) is the existence of dopant-carrier magnetic exchange interactions. In this letter, we report the first direct observation of such exchange interactions in colloidal doped CdSe nanocrystals. Doped CdSe quantum dots were synthesized by thermal decomposition of (Me4N)2[Cd4(SePh)10] in the presence of TMCl2 (TM2+ ) Mn2+ or Co2+) in hexadecylamine and were characterized by several analytical and spectroscopic techniques. Using magnetic circular dichroism spectroscopy, successful doping and the existence of giant excitonic Zeeman splittings in both Mn2+- and Co2+-doped wurtzite CdSe quantum dots are demonstrated unambiguously.

Archer, Paul I.; Santangelo, Steven A.; Gamelin, Daniel R.

2007-03-23T23:59:59.000Z

345

Effect of the magnetic phase transition on the charge transport in layered semiconductor ferromagnets TlCrS{sub 2} and TlCrSe{sub 2}  

Science Conference Proceedings (OSTI)

TlCrS{sub 2} and TlCrSe{sub 2} crystals were synthesized by solid-state reaction. X-ray diffraction analysis showed that TlCrS{sub 2} and TlCrSe{sub 2} compounds crystallize in the hexagonal crystal system with lattice parameters a = 3.538 A, c = 21.962 A, c/a {approx} 6.207, z = 3; a = 3.6999 A, c = 22.6901 A, c/a {approx} 6.133, z = 3; and X-ray densities {rho}{sub x} = 6.705 and 6.209 g/cm{sup 3}, respectively. Magnetic and electric studies in a temperature range of 77-400 K showed that TlCrS{sub 2} and TlCrSe{sub 2} are semiconductor ferromagnets. Rather large deviations of the experimental effective magnetic moment of TlCrS{sub 2} (3.26 {mu}{sub B}) and TlCrSe{sub 2} (3.05 {mu}{sub B}) from the theoretical one (3.85 {mu}{sub B}) are attributed to two-dimensional magnetic ordering in the paramagnetic region of strongly layered ferromagnets TlCrS{sub 2} and TlCrSe{sub 2}. The effect of the magnetic phase's transition on the charge transport in TlCrS{sub 2} and TlCrSe{sub 2} is detected.

Veliyev, R. G.; Sadikhov, R. Z.; Kerimova, E. M., E-mail: ekerimova@physics.ab.az; Asadov, Yu. G.; Jabbarov, A. I. [Azerbaijan National Academy of Sciences, Institute of Physics (Azerbaijan)

2009-09-15T23:59:59.000Z

346

Development of a computer model for polycrystalline thin-film CuInSe sub 2 and CdTe solar cells  

DOE Green Energy (OSTI)

This report describes work to develop a highly accurate numerical model for CuInSe{sub 2} and CdTe solar cells. ADEPT (A Device Emulation Program and Toolbox), a one-dimensional semiconductor device simulation code developed at Purdue University, was used as the basis of this model. An additional objective was to use ADEPT to analyze the performance of existing and proposed CuInSe{sub 2} and CdTe solar cell structures. The work is being performed in two phases. The first phase involved collecting device performance parameters, cell structure information, and material parameters. This information was used to construct the basic models to simulate CuInSe{sub 2} and CdTe solar cells. This report is a tabulation of information gathered during the first phase of this project on the performance of existing CuInSe{sub 2} and CdTe solar cells, the material properties of CuInSr{sub 2}, CdTe, and CdS, and the optical absorption properties of CuInSe{sub 2}, CdTe, and CdS. The second phase will entail further development and the release of a version of ADEPT tailored to CuInSe{sub 2} and CdTe solar cells that can be run on a personal computer. In addition, ADEPT will be used to analyze the performance of existing and proposed CuInSe{sub 2} and CdTe solar cell structures. 110 refs.

Gray, J.L.; Schwartz, R.J.; Lee, Y.J. (Purdue Univ., Lafayette, IN (United States))

1992-04-01T23:59:59.000Z

347

Polycrystalline CuInSe{sub 2} and CdTe PV solar cells. Annual subcontract report, 15 April 1993--14 April 1994  

DOE Green Energy (OSTI)

This is an annual technical report on the Phase 2 of a three-year phased research program. The principal objective of the research project is to develop novel and low-cost processes for the fabrication of stable and efficient CuIn{sub 1{minus}x}Ga{sub x}Se{sub 2} and CdTe polycrystalline-thin-film solar cells using reliable techniques amenable to scale-up for economic, large-scale manufacture. The aims are to develop a process for the non-toxic selenization so as to avoid the use of extremely toxic H{sub 2}Se in the fabrication of CuIn{sub 1{minus}x}Ga{sub x}Se{sub 2} thin-film solar cells; to optimize selenization parameters; to develop a process for the fabrication of CdTe solar cells using Cd and Te layers sputtered from elemental targets; to develop an integrated process for promoting the interdiffusion between Cd/Te layers, CdTe phase formation, grain growth, type conversion, and junction formation; to improve adhesion; to minimize residual stresses; to improve the metallic back-contact; to improve the uniformity, stoichiometry, and morphology of CuIn{sub 1{minus}x}Ga{sub x}Se{sub 2} and CdTe thin films; and to improve the efficiency of CuIn{sub 1{minus}x}Ga{sub x}Se{sub 2} and CdTe solar cells.

Dhere, N.G. [Florida Solar Energy Center, Cape Canaveral, FL (United States)

1994-11-01T23:59:59.000Z

348

Effect of sintering in ball-milled K{sub 2}Bi{sub 8}Se{sub 13} thermoelectric nano-composites  

Science Conference Proceedings (OSTI)

K{sub 2}Bi{sub 8}Se{sub 13} has many attractive features for thermoelectric applications. Recently, K{sub 2}Bi{sub 8}Se{sub 13}-based nanocomposite materials, consisting of nano-crystalline, micro-crystalline and amorphous phases, have been fabricated based on powder technology techniques. The Seebeck coefficient has been enhanced while the thermal conductivity has been decreased presenting, thus, interesting behavior. The behavior of the materials under heat treatment conditions is now of interest, as the application of sintering process is necessary for the development of thermoelectric modules. In this work, the crystallization of the K{sub 2}Bi{sub 8}Se{sub 13}-based nano-composites is studied using Differential Scanning Calorimetry. The results show that crystallization follows a multiple-step process with different activation energies. The thermoelectric properties are also discussed in the range that crystallization occurs. - Graphical Abstract: {beta}-K{sub 2}Bi{sub 8}Se{sub 13}-based nanocomposites follow a multiple-step crystallization process. Highlights: Black-Right-Pointing-Pointer K{sub 2}Bi{sub 8}Se{sub 13}-based composites consisting of nanocrystalline and amorphous phases. Black-Right-Pointing-Pointer Sintering results multiple-step crystallization with variable activation energies. Black-Right-Pointing-Pointer Thermoelectric properties follow a step-like behavior during sintering. Black-Right-Pointing-Pointer Properties are attributed to the strain relaxation, nucleation and grain growth.

Hatzikraniotis, E. [Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece)] [Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece); Ioannou, M. [Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678 Nicosia (Cyprus)] [Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678 Nicosia (Cyprus); Chrissafis, K. [Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece)] [Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece); Chung, D.Y. [Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States)] [Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Paraskevopoulos, K.M. [Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece)] [Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki (Greece); Kyratsi, Th., E-mail: kyratsi@ucy.ac.cy [Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678 Nicosia (Cyprus)

2012-09-15T23:59:59.000Z

349

Molecular Control of the Nanoscale: Effect of Phosphine–Chalcogenide Reactivity on CdS–CdSe Nanocrystal Composition and Morphology  

Science Conference Proceedings (OSTI)

We demonstrate molecular control of nanoscale composition, alloying, and morphology (aspect ratio) in CdS–CdSe nanocrystal dots and rods by modulating the chemical reactivity of phosphine–chalcogenide precursors. Specific molecular precursors studied were sulfides and selenides of triphenylphosphite (TPP), diphenylpropylphosphine (DPP), tributylphosphine (TBP), trioctylphosphine (TOP), and hexaethylphosphorustriamide (HPT). Computational (DFT), NMR (31P and 77Se), and high-temperature crossover studies unambiguously confirm a chemical bonding interaction between phosphorus and chalcogen atoms in all precursors. Phosphine–chalcogenide precursor reactivity increases in the order: TPPE CdSe, and CdS1–xSex quantum rods were synthesized by injection of a single R3PE (E = S or Se) precursor or a R3PS–R3PSe mixture to cadmium–phosphonate at 320 or 250 °C. XRD and TEM reveal that the length-to-diameter aspect ratio of CdS and CdSe nanorods is inversely proportional to R3PE precursor reactivity. Purposely matching or mismatching R3PS–R3PSe precursor reactivity leads to CdS1–xSex nanorods without or with axial composition gradients, respectively. We expect these observations will lead to scalable and highly predictable “bottom-up” programmed syntheses of finely heterostructured nanomaterials with well-defined architectures and properties that are tailored for precise applications.

Ruberu, T. Purnima A.; Albright, Haley R.; Callis, Brandon; Ward, Brittney; Cisneros, Joana; Fan, Hua-Jun; Vela, Javier

2012-04-22T23:59:59.000Z

350

Polycrystalline CuInSe{sub 2} and CdTe solar cells. Annual subcontract report, April 15, 1992--April 14, 1993  

DOE Green Energy (OSTI)

The principal objective of the research project is to develop processes for the fabrication of cadmium-telluride, CdTe, and copper-indium-gallium-diselenide, Cu(In{sub 1{minus}x}Ga{sub x})Se{sub 2}, polycrystalline-thin-film solar cells using techniques that can be scaled-up for economic manufacture on a large scale. The aims are to fabricate CdTe solar cells using Cd and Te layers sputtered from elemental targets; to promote the interdiffusion between Cd/Te layers, CdTe phase formation, and grain growth; to utilize non-toxic selenization so as to avoid the use of extremely toxic H{sub 2}Se in the fabrication of Cu(In{sub l{minus}x}Ga{sub x})Se{sub 2} thin-film solar cells; to optimize selenization parameters; to improve adhesion; to minimize residual stresses; to improve the uniformity, stoichiometry, and morphology of CdTe and Cu(In{sub 1{minus}x}Ga{sub x})Se{sub 2} thin films, and the efficiency of CdTe and Cu(In{sub 1{minus}x}Ga{sub x})Se{sub 2} solar cells.

Dhere, N.G. [Florida Solar Energy Center, Cape Canaveral, FL (United States)

1994-08-01T23:59:59.000Z

351

The causes and consequences of tax policy  

E-Print Network (OSTI)

Tax Revenue Country Bosnia and Herzegovina Maldives MoldovaTax Jordan Seychelles Bosnia and Herzegovina Macao, China

Weller, Nicholas William

2008-01-01T23:59:59.000Z

352

Efficient pulsed Cr{sup 2+}:CdSe laser continuously tunable in the spectral range from 2.26 to 3.61 {mu}m  

SciTech Connect

The efficient lasing of a Cr{sup 2+}:CdSe single crystal pumped by 1.94-{mu}m, 300-{mu}s pulses from a Tm:YAP laser was obtained. The Cr{sup 2+}:CdSe laser with a nonselective resonator emitted up to 17 mJ at a wavelength of {approx}2.65 {mu}m with the quantum slope efficiency of 63% with respect to the absorbed pump energy. The absorption coefficient of the Cr{sup 2+}:CdSe crystal at the laser wavelength did not exceed 0.045 cm{sup -1}. By using a resonator with a dispersion prism, the laser wavelength was continuously tuned in the spectral range from 2.26 to 3.61 {mu}m. (lasers)

Akimov, V A [Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region (Russian Federation); Kozlovskii, V I; Korostelin, Yu V; Landman, A I; Podmar'kov, Yu P; Skasyrskii, Ya K; Frolov, M P [P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2008-03-31T23:59:59.000Z

353

Common Origin of the Circular-dichroism Pattern in ARPES of SrTiO3 and CuxBi2Se3  

SciTech Connect

We investigate circular dichroism in the angular distribution (CDAD) of photoelectrons from SrTiO{sub 3}:Nb and Cu{sub x}Bi{sub 2}Se{sub 3} recorded by 7-eV laser ARPES. In addition to the well-known node that occurs in CDAD when the incidence plane matches the mirror plane of the crystal, we show that another type of node occurs when the mirror plane of the crystal is vertical to the incidence plane and the electronic state is two dimensional. The flower-shaped CDAD's occurring around the Fermi level of SrTiO{sub 3}:Nb and around the Dirac point of Cu{sub x}Bi{sub 2}Se{sub 3} are explained on equal footings. A surface-state-to-surface-resonance transition is indicated for the topological state of Cu{sub x}Bi{sub 2}Se{sub 3}.

Bell, Christopher

2011-08-19T23:59:59.000Z

354

Enhanced photocurrent gain and spectrum range based on the composite consisting of SnO{sub 2} nanowires and CdSe quantum dots  

Science Conference Proceedings (OSTI)

High sensitivity with additional spectral response based on the composite consisting of SnO{sub 2} nanowires (NWs) and CdSe quantum dots (QDs) has been demonstrated. The underlying mechanism is attributed to the spatial separation of photogenerated electrons and holes due to the charge transfer arising from type II band alignment between CdSe QD and SnO{sub 2} NW. This work shows that by selective decoration of suitable QDs, the photocurrent gain of NWs not only can be greatly enhanced, but also can be extended to a wider range photoresponse spectrum. Our result, therefore, provides a very useful guideline to create high efficiency photodetectors.

Lu, M. L.; Lin, C. H.; Chen, Y. F. [Department of Physics, National Taiwan University, Taipei 10617, Taiwan (China)

2011-08-22T23:59:59.000Z

355

Control of growth and the processes of energy transfer from CdSe quantum dots for Nd{sup 3+} ions in a vitreous system: Thermal annealing time  

SciTech Connect

The authors report clear evidence of radiative and nonradiative energy transfer from CdSe quantum dots to Nd{sup 3+} ions in a glass system synthesized by melting method. An efficient control of energy transfer can be obtained by controlling the mean radius of the CdSe quantum dots. Increase of about 100% of the near infrared Nd{sup 3+} emission ({sup 4}F{sub 3/2}{yields}{sup 4}I{sub 9/2}) was observed as a function of thermal annealing time.

Dantas, N. O.; Serqueira, E. O. [Laboratorio de Novos Materiais Isolantes e Semicondutores-LNMIS, Instituto de Fisica, Universidade Federal de Uberlandia, 38400-902 Uberlandia, Minas Gerais (Brazil); Anjos, V.; Bell, M. J. V. [Grupo de Espectroscopia de Materiais, Departamento de Fisica, Universidade Federal de Juiz de Fora, 36036-330 Juiz de Fora, Minas Gerais (Brazil)

2012-09-17T23:59:59.000Z

356

Electronic and magnetic phase diagram of [Beta]Fe[subscript1.01]Se with superconductivity at 36.7 K under pressure  

Science Conference Proceedings (OSTI)

The discovery of new high-temperature superconductors based on FeAs has led to a new 'gold rush' in high-T{sub C} superconductivity. All of the new superconductors share the same common structural motif of FeAs layers and reach T{sub C} values up to 55 K. Recently, superconductivity has been reported in FeSe, which has the same iron pnictide layer structure, but without separating layers. Here, we report the magnetic and electronic phase diagram of {beta}-Fe{sub 1.01}Se as a function of temperature and pressure. The superconducting transition temperature increases from 8.5 to 36.7 K under an applied pressure of 8.9 GPa. It then decreases at higher pressures. A marked change in volume is observed at the same time as T{sub C} rises, owing to a collapse of the separation between the Fe{sub 2}Se{sub 2} layers. No static magnetic ordering is observed for the whole p-T phase diagram. We also report that at higher pressures (starting around 7 GPa and completed at 38 GPa), Fe{sub 1.01}Se transforms to a hexagonal NiAs-type structure and exhibits non-magnetic behavior.

Medvedev, S.; McQueen, T.M.; Troyan, I.A.; Palasyuk, T.; Eremets, M.I.; Cava, R.J.; Naghavi, S.; Casper, F.; Ksenofontov, V.; Wortmann, G.; Felser, C.; (Paderborn); (MXPL-M); (Mainz); (Princeton)

2010-09-17T23:59:59.000Z

357

Suzuki batteries The '96 to present Suzuki DR650SE comes from the factory with a Yuasa YTX9BS battery. This is a  

E-Print Network (OSTI)

Suzuki batteries The '96 to present Suzuki DR650SE comes from the factory with a Yuasa YTX9BS battery. This is a highquality AGM (absorbed glass mat) type battery, which is sealed and maintenance free. AGM batteries last much longer than conventional floodedcell batteries in normal service

Westall, James M.

358

Observation of differences between low-energy electron- and positron-diffraction structural determinations of the cleavage faces of CdSe  

Science Conference Proceedings (OSTI)

Low-energy positron diffraction (LEPD) is used in conjunction with low-energy electron diffraction (LEED) to determine the relaxed atomic geometries of the CdSe cleavage surfaces. The LEPD analyses yield optimal fits at smaller top-layer perpendicular relaxations than LEED for both cleavage faces, and significantly better agreement between theoretical and experimental intensity profiles.

Horsky, T.N.; Brandes, G.R.; Canter, K.F.; Duke, C.B.; Horng, S.F.; Kahn, A.; Lessor, D.L.; Mills A.P. Jr.; Paton, A.; Stevens, K.; and others

1989-04-17T23:59:59.000Z

359

Hole drift mobility measurements in polycrystalline CuIn1-xGaxSe2 S. A. Dinca and E. A. Schiff  

E-Print Network (OSTI)

/Mo/CuIn1-xGaxSe2/CdS/ZnO/indium tin oxide ITO / Ni/Al grid . The CIGS thin films were grown using elemen. Young National Renewable Energy Laboratory, Golden, Colorado 80401, USA W. N. Shafarman Institute the National Renewable Energy Laboratory NREL and from the Institute of Energy Conversion IEC . The hole drift

Schiff, Eric A.

360

Characterization of Damp-Heat Degradation of CuInGaSe2 Solar Cell Components and Devices by (Electrochemical) Impedance Spectroscopy: Preprint  

DOE Green Energy (OSTI)

This work evaluated the capability of (electrochemical) impedance spectroscopy (IS, or ECIS as used here) to monitor damp heat (DH) stability of contact materials, CuInGaSe2 (CIGS) solar cell components, and devices. Cell characteristics and its variation of the CIGS devices were also examined by the ECIS.

Pern, F. J. J.; Noufi, R.

2011-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

22nd European Photovoltaic Solar Energy Conference, Milan, 3-7 September 2007 Cu(InGa)Se2 THIN-FILM SOLAR CELLS  

E-Print Network (OSTI)

22nd European Photovoltaic Solar Energy Conference, Milan, 3-7 September 2007 Cu(InGa)Se2 THIN-FILM SOLAR CELLS: COMPARATIVE LIFE-CYCLE ANALYSIS OF BUFFER LAYERS Vasilis M. Fthenakis and Hyung Chul Kim National Photovoltaic EH&S Research Center Brookhaven National Laboratory Upton, NY 11973, USA ABSTRACT

362

Plasma-Assisted Co-evaporation of S and Se for Wide Band Gap Chalcopyrite Photovoltaics: Final Subcontract Report, December 2001 -- April 2005  

DOE Green Energy (OSTI)

In this work, ITN Energy Systems (ITN) and lower-tier subcontractor Colorado School of Mines (CSM) explore the replacement of the molecular chalcogen precursors during deposition (e.g., Se2 or H2Se) with more reactive chalcogen monomers or radicals (e.g., Se). Molecular species are converted to atomic species in a low-pressure inductively coupled plasma (ICP). This program explored the use of plasma-activated chalcogen sources in CIGS co-evaporation to lower CIGS deposition temperature, increase utilization, increase deposition rate, and improve S:Se stoichiometry control. Plasma activation sources were designed and built, then operated and characterized over a wide range of conditions. Optical emission and mass spectrometry data show that chalcogens are effectively dissociated in the plasma. The enhanced reactivity achieved by the plasma processing was demonstrated by conversion of pre-deposited metal films to respective chalcogen-containing phases at low temperature and low chalcogen flux. The plasma-assisted co-evaporation (PACE) sources were also implemented in CIGS co-evaporation. No benefit from PACE was observed in device results, and frequent deposition failures occurred.

Repins, I.; Wolden, C.

2005-08-01T23:59:59.000Z

363

SeTES: A self-teaching expert system for the analysis, design, and prediction of gas production from unconventional gas resources  

Science Conference Proceedings (OSTI)

SeTES is a self-teaching expert system that (a) can incorporate evolving databases involving any type and amount of relevant data (geological, geophysical, geomechanical, stimulation, petrophysical, reservoir, production, etc.) originating from unconventional ... Keywords: Bayesian networks, Expert system, Machine learning, Optimization, Simulation, Unconventional gas

George J. Moridis, Matthew T. Reagan, Heidi Anderson Kuzma, Thomas A. Blasingame, Y. Wayne Huang, Ralph Santos, Katie L. Boyle, Craig M. Freeman, Dilhan Ilk, Manuel Cossio, Srimoyee Bhattacharya, Michael Nikolaou

2013-08-01T23:59:59.000Z

364

Effect of {gamma}-ray radiation on electrical properties of heat-treated Tb{sub x}Sn{sub 1-x}Se single crystals  

Science Conference Proceedings (OSTI)

The effect of {gamma}-ray radiation on the electrical properties of heat-treated Tb{sub 0.01}Sn{sub 0.99}Se (sample 1) and Tb{sub 0.05}Sn{sub 0.95}Se (sample 2) samples is studied. It is found that, as a result of irradiation with {gamma}-ray 1.25-MeV photons, the charge-carrier concentration decreases in the temperature range T = 77-200 K by 17 and 6.3% for samples 1 and 2, respectively. It is assumed that, in the course of irradiation with {gamma}-ray photons, terbium impurity atoms are located between sites of the crystal lattice; in addition, Frenkel defects are formed.

Huseynov, J. I., E-mail: cih_58@mail.ru; Jafarov, T. A. [Azerbaijan State Pedagogical University (Azerbaijan)

2012-04-15T23:59:59.000Z

365

Spectra of optical parameters in bulk and film amorphous alloys of the Se{sub 95}As{sub 5} system containing samarium (Sm) impurities  

Science Conference Proceedings (OSTI)

Reflectance spectra of bulk and film amorphous alloys of the Se{sub 95}As{sub 5} system containing samarium (Sm) impurities are studied in the energy range of 1-6 eV. Spectral dependences of optical constants and derivatives of optical dielectric functions are calculated by the Kramers-Kronig method. Changes in spectra of optical parameters depending on the content of impurities introduced into Se{sub 95}As{sub 5} and conditions of their preparation are explained based on the cluster model. According to the latter, changes in the electron density of states depends on changes in atomic configurations in clusters, i.e., short-range order changes.

Djalilov, N. Z.; Damirov, G. M., E-mail: gafil@physics.ab.az [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2011-09-15T23:59:59.000Z

366

Low-cost CuInSe{sub 2} submodule development. Final subcontract report, 9 July 1990--31 January 1992  

DOE Green Energy (OSTI)

Aim of this project is development and demonstration of processing steps necessary for fabrication of high efficiency CuInSe{sub 2} solar cells and sub-modules by the two-stage technique (also called the selenization method.) During this period, we have optimized the processing parameters of this method and demonstrated CuInSe{sub 2}/CdS/ZnO devices with a 1{endash}4 cm{sup 2} area and up to 12.4% active area efficiency. We have also developed a novel approach for the preparation of Cu/In precursors that improved the stoichiometric and morphological uniformity in these films. We have developed processing steps and tooling for handling up to 1 ft{sup 2} size substrates and as a result of these efforts demonstrated our first monolithically integrated sub-module of 1 ft{sup 2} area. 16 figs, 1 tab, 15 refs.

Basol, B.M.; Kapur, V.K.; Halani, A.; Leidholm, C. [International Solar Electric Technology, Inglewood, CA (United States)

1992-10-01T23:59:59.000Z

367

Applying SE Methods Achieves Project Success to Evaluate Hammer and Fixed Cutter Grinders Using Multiple Varieties and Moistures of Biomass Feedstock for Ethanol Production  

SciTech Connect

Applying basic systems engineering (SE) tools to the mission analysis phases of a 2.5-million dollar biomass pre-processing project for the U.S. Department of Energy directly assisted the project principal investigator understand the complexity and identify the gaps of a moving-target project and capture the undefined technical/functional requirements and deliverables from the project team and industrial partners. A creative application of various SE tools by non-aerospace systems engineers developed an innovative “big picture” product that combined aspects of mission analysis with a project functional flow block diagram, providing immediate understanding of the depth and breath of the biomass preprocessing effort for all team members, customers, and industrial partners. The “big picture” diagram became the blue print to write the project test plan, and provided direction to bring the project back on track and achieve project success.

Larry R. Zirker; Christopher T. Wright, PhD; R. Douglas Hamelin

2008-06-01T23:59:59.000Z

368

Measurement of the valence band-offset in a PbSe/ZnO heterojunction by x-ray photoelectron spectroscopy  

SciTech Connect

A heterojunction of PbSe/ZnO has been grown by molecular beam epitaxy. X-ray photoelectron spectroscopy was used to directly measure the valence-band offset (VBO) of the heterojunction. The VBO, {Delta}E{sub V}, was determined as 2.51 {+-} 0.05 eV using the Pb 4p{sup 3/2} and Zn 2p{sup 3/2} core levels as a reference. The conduction-band offset, {Delta}E{sub C}, was, therefore, determined to be 0.59 {+-} 0.05 eV based on the above {Delta}E{sub V} value. This analysis indicates that the PbSe/ZnO heterojunction forms a type I (Straddling Gap) heterostructure.

Li Lin; Qiu Jijun; Weng Binbin; Yuan Zijian; Shi Zhisheng [School of Electrical and Computer Engineering, University of Oklahoma, Norman, Oklahoma 73019 (United States); Li Xiaomin; Gan Xiaoyan [State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); Sellers, Ian R. [Deparment of Physics, University of Oklahoma, Norman, Oklahoma 73019 (United States)

2012-12-24T23:59:59.000Z

369

Emerging materials systems for solar cell applications - CU/sub 2-x/Se. Final report, May 1, 1979-April 30, 1980  

DOE Green Energy (OSTI)

The objective of this research program was the investigation of copper selenide (Cu/sub 2-x/Se) films as a promising potential semiconductor material for low cost, mass produced thin film photovoltaic solar cells. Major activities during this program have been the development of the semiconductor film formation process, characterization of the deposited films, calculation of the projected cell performance from theoretical analysis, and the fabrication and testing of simple cell structures. Progress is reported.

Mickelsen, R.A.; Stewart, J.M.; Chen, W.S.

1980-04-01T23:59:59.000Z

370

X-ray irradiation-induced ionization of CdS{sub 1-x}Se{sub x} nanocrystals embedded in borosilicate glass  

SciTech Connect

Optical absorption spectra of x-ray irradiated CdS{sub 1-x}Se{sub x} nanocrystals embedded in a borosilicate glass matrix are studied. The observed transformation of the confinement-related features in the spectra is related to the x-ray-induced negative ionization of the nanocrystals with charge transfer across the nanocrystal/matrix interface. The radiation-induced changes and their relaxation upon postirradiation storage as a function of nanocrystal size and composition are discussed.

Azhniuk, Yu. M.; Prymak, M. V.; Lopushansky, V. V.; Solomon, A. M.; Hutych, Yu. I.; Gomonnai, A. V. [Institute of Electron Physics, Ukrainian National Academy of Sciences, Universytetska St. 21, Uzhhorod, 88017 (Ukraine); Zahn, D. R. T. [Department of Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz (Germany)

2010-06-15T23:59:59.000Z

371

Novel thin-film CuInSe{sub 2} fabrication. Annual subcontract report, 1 March 1990--30 April 1991  

DOE Green Energy (OSTI)

This report describes research in Rapid Thermal Processing (RTP), a process that allows the formation of CuInSe{sub 2} without the use of H{sub 2}Se. RTP is a well-established method of rapidly achieving temperatures necessary to melt and recrystallize materials such as Si and and silicides. RTP processes can rapidly and uniformly heat large surface areas to hundreds of degrees Celsius. RTP is the most promising method of rapid recrystallization studied to date, being readily scalable from the research to the production level. The approach to the experiment was divided into two sections: (1) fabricating the precursor film and (2) processing the precursor film. The objective of the first phase of the work was to fabricate the thin films by RTP, then fully characterize them, to demonstrate the viability of the process as a method by which to make device-quality CuInSe{sub 2}. The second phase was to demonstrate that material made by this method could be used to make an active photovoltaic device. 24 refs.

Mooney, G.D.; Hermann, A.M. [Colorado Univ., Boulder, CO (United States)

1992-03-01T23:59:59.000Z

372

Density Profiles in Sputtered Molybdenum Thin Films and Their Effects on Sodium Diffusion in Cu(InxGa1-x)Se2 Photovoltaics: Preprint  

DOE Green Energy (OSTI)

Molybdenum (Mo) thin films were sputtered onto soda lime glass (SLG) substrates. The main variable in the deposition parameters, the argon (Ar) pressure pAr, was varied in the range of 6 - 20 mTorr. Ex situ spectroscopic ellipsometry (SE) was performed to find out that the dielectric functions of the Mo films were strongly dependent on pAr, indicating a consistent and significant decrease in the Mo film density pMo with increasing pAr. This trend was confirmed by high-angle-annular-dark-field scanning transmission electron microscopy. Dielectric functions of Mo were then found to be correlated with secondary ion mass spectroscopy profiles of Sodium (Na) in the Cu(InxGa1-x)Se2 (CIGS) layer grown on top of Mo/SLG. Therefore, in situ optical diagnostics can be applied for process monitoring and optimization in the deposition of Mo for CIGS solar cells. Such capability is demonstrated with simulated optical transmission and reflectance of variously polarized incident light, using dielectric functions deduced from SE.

Li, J.; Glynn, S.; Mansfield, L.; Young, M.; Yan, Y.; Contreras, M.; Noufi, R.; Levi, D.; Terry Jr., F. L.

2011-07-01T23:59:59.000Z

373

Surface and substrate induced effects on thin films of the topological insulators Bi2Se3 and Bi2Te3  

Science Conference Proceedings (OSTI)

Based on van der Waals density functional calculations, we have studied few-quintuple-layer (QL) films of Bi2Se3 and Bi2Te3. The separation between the QLs near the surface is found to have a large increase after relaxation, whereas, the separation between the inner QLs is smaller and approaches the bulk value as the thickness grows, showing a two-dimensional to three-dimensional structural crossover. Accordingly, the surface Dirac cone of the Bi2Se3 film is evidently gapped for small thicknesses (two to four QLs), and the gap is reduced and, finally, is closed with the increasing thickness, agreeing well with the experiments. We further studied the substrate effect by investigating the Bi2Se3/graphene system. It is found that the underlying graphene induces a giant thickness-dependent Rashba splitting and Dirac point shift. Because Bi2Te3 films have smaller relative inter-QL expansion and stronger spin-orbit coupling, the topological features start to appear in the film as thin as two QLs in good accord with the experiments.

Liu, Wenliang [Xiangtan University, Xiangtan Hunan, China; Peng, Xiangyang [Xiangtan University, Xiangtan Hunan, China; Wei, Xiaolin [Xiangtan University, Xiangtan Hunan, China; Yang, Hong [Xiangtan University, Xiangtan Hunan, China; Stocks, George Malcolm [ORNL; Zhong, Jianxin [Xiangtan University, Xiangtan Hunan, China

2013-01-01T23:59:59.000Z

374

Hicon: Order (2013-SE-1426)  

Energy.gov (U.S. Department of Energy (DOE))

DOE ordered Ningbo Hicon International Industry Company, Ltd. to pay a $1,912,714 civil penalty after finding Hicon had manufactured and distributed in commerce in the U.S. 115,126 units of basic model BD-200, a noncompliant freezer.

375

engineering FacultySeMinar  

E-Print Network (OSTI)

and nanoengineering Advanced Control Systems for unmanned and Ground vehicles Sustainable High-Performance Materials-networked intelligent Daylighting Systems Prof. Carlos Fernandez-Pello Prof. Alice Agogino 22 29 Modeling, Estimation

Zhang, Xiang

376

Universal: Order (2013-SE-26004)  

Energy.gov (U.S. Department of Energy (DOE))

DOE ordered Universal Lighting Technologies, Inc. to pay a $7,264 civil penalty after finding Universal had manufactured and distributed in commerce in the U.S. 454 units of model B140R277HP, a noncompliant fluorescent lamp ballast.

377

Cooper: Order (2012-SE-4701)  

Energy.gov (U.S. Department of Energy (DOE))

DOE ordered Cooper Power Systems, LLC to abide by the Compromise Agreement, which waived the civil penalty after finding Cooper had inadvertently distributed in commerce in the U.S. three models (total of five units) of distribution transformers. Cooper agrees to abide by the terms of a Notice of Noncompliance Determination to be issued pursuant to 10 C.F.R. § 429.114.

378

TECNOSOL | Open Energy Information  

Open Energy Info (EERE)

navigation, search Name TECNOSOL Place Contigua a Panader-a Norma, Nicaragua Sector Hydro, Solar, Wind energy Product Nicaragua-based solar, wind, and hydroelectric system...

379

Research on polycrystalline thin-film CuInGaSe{sub 2} solar cells. Annual subcontract report, 3 May 1991--21 May 1993  

DOE Green Energy (OSTI)

This report describes work to fabricate high-efficiency CdZnS/CuInGaSe{sub 2}, thin-film solar cells and to develop improved transparent conductor window layers such as ZnO. The specific technical milestone for Phase I was to demonstrate an air mass (AM) 1.5 global 13% , 1-cm{sup 2} total-area CuInGaSe{sub 2} (CIGS) thin-film solar cell. For Phase II, the objective was to demonstrate an AM1.5 global 13.5%, 1-cm{sup 2} total-area efficiency. We focused our activities on three areas. First, we modified the CIGS deposition system to double its substrate capacity. Second, we developed new tooling to enable investigation of a modified aqueous CdZnS process in which the goal was to improve the yield of this critical step in the device fabrication process. Third, we upgraded the ZnO sputtering system to improve its reliability and reproducibility. A dual rotatable cathode metallic source was installed, and the sputtering parameters were further optimized to improve ZnO`s properties as a transparent conducting oxide (TCO). Combining the refined CdZnS process with CIGS from the newly fixtured deposition system enable us to fabricate and deliver a ZnO/Cd{sub 0.08}Zn{sub 0.20}S/CuIn{sub 0.74}Ga{sub 0.26}Se{sub 2} cell on alumina with I-V characteristics, as measured by NREL under standard test conditions, of 13.7% efficiency with V{proportional_to} = 0.5458 V, J{sub sc} = 35.48 mA/cm{sup 2}, FF = 0.688, and efficiency = 14.6%.

Chen, W.S.; Stewart, J.M.; Mickelsen, R.A.; Devaney, W.E.; Stanbery, B.J. [Boeing Co., Seattle, WA (United States). Defense and Space Systems Group

1993-10-01T23:59:59.000Z

380

Thermodynamic Equilibrium-Driven Formation of Single-Sized Nanocrystals: Reaction Media Tuning CdSe Magic-Sized versus Regular Quantum Dots  

Science Conference Proceedings (OSTI)

A concept for the fundamental science of nanoparticle synthesis, thermodynamic equilibrium-driven formation of colloidal single-sized nanoparticle ensembles, is proposed and demonstrated in this manuscript, which addresses the controlled formation of CdSe magic-sized and regular quantum dots (MSQDs and RQDs). During formation, the former are magic-sized nuclei without further growth in size, while the latter experience nucleation and growth. Both MSQDs and RQDs exhibit bandgap emission, while the former have homogeneous spectra broadening only and the latter both homogeneous and inhomogeneous spectra broadening. The former are single-sized and the latter have size distribution. With continuous and homogeneous nucleation, the thermodynamically driven formation of MSQDs was realized via our one-pot noninjection approach, which features highly synthetic reproducibility and large-scale capability. With the proper tuning of the synthetic parameters, such as the nature of the reaction medium, that affect the thermodynamic equilibria, various CdSe MSQDs and RQDs were synthesized discriminately under otherwise identical synthetic formulation and reaction conditions; the reaction media were noncoordinating 1-octadecene, coordinating trioctylphosphine, and mixtures of the two. The nature of Cd precursors, affected also by the reaction media, plays a major role in the formation of MSQDs versus RQDs. The present investigation on the thermodynamically driven formation of CdSe single-sized nanoparticles via tuning of the reaction medium, mainly, brings novel insights into the formation mechanism and into the surface ligands of the resulting colloidal nanocrystals. More importantly, the present study provides novel experimental design and approaches to single-sized nanoparticles desired for various applications.

Yu, Kui [SIMS, NRC of Canada; Hu, Michael Z. [ORNL; Wang, Ruibing [SIMS, NRC of Canada; Le Piolet, Mickael [SIMS, NRC of Canada; Frotey, Marion [SIMS, NRC of Canada; Zaman, Md. Badruz [SIMS, NRC of Canada; Wu, Xiaohua [IMS, NRC of Canada; Leek, Donald M. [SIMS, NRC of Canada; Tao, Ye [IMS, NRC of Canada; Wilkinson, Diana [SIMS, NRC of Canada; Li, Chunsheng [National Research Council of Canada

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Physical properties, crystal and magnetic structure of layered Fe[subscript 1.11]Te[subscript 1;#8722;x]Se[subscript x] superconductors  

SciTech Connect

The physical and structural properties of Fe1.11Te and Fe1.11Te0.5Se0.5 have been investigated by means of X-ray and neutron diffraction as well as physical property measurements. For the Fe1.11Te compound, the structure distortion from a tetragonal to monoclinic phase takes place at 64 K accompanied with the onset of antiferromagnetic order upon cooling. The magnetic structure of the monoclinic phase was confirmed to be of antiferromagnetic configuration with a propagation vector k = (1/2, 0, 1/2) based on Rietveld refinement of neutron powder diffraction data. The structural/magnetic transitions are also clearly visible in magnetic, electronic and thermodynamic measurements. For superconducting Fe1.11Te0.5Se0.5 compound, the superconducting transition with T c = 13.4 K is observed in the resistivity and ac susceptibility measurements. The upper critical field H c2 is obtained by measuring the resistivity under different magnetic fields. The Kim's critical state model is adopted to analyze the temperature dependence of the ac susceptibility and the intergranular critical current density is calculated as a function of both field amplitude and temperature. Neutron diffraction results show that Fe1.11Te0.5Se0.5 crystalizes in tetragonal structure at 300 K as in the parent compound Fe1.11Te and no structural distortion is detected upon cooling to 2 K. However an anisotropic thermal expansion anomaly is observed around 100 K.

Xiao, Y.; Su, Y.; Kumar, C.M.N.; Ritter, C.; Mittal, R.; Price, S.; Perßon, J.; Brückel, Th. (BARC); (Julich); (ILL)

2012-10-23T23:59:59.000Z

382

Spectroscopy of proton-rich 66^Se up to J^? = 6^+: isospin-breaking effect in the A = 66 isobaric triplet  

E-Print Network (OSTI)

Candidates for three excited states in the 66^Se have been identified using the recoil-{\\beta} tagging method together with a veto detector for charged-particle evaporation channels. These results allow a comparison of mirror and triplet energy differences between analogue states across the A = 66 triplet as a function of angular momentum. The extracted triplet energy differences follow the negative trend observed in the f_7/2 shell. Shell-model calculations indicate a continued need for an additional isospin non-conserving interaction in addition to the Coulomb isotensor part as a function of mass.

P. Ruotsalainen; D. G. Jenkins; M. A. Bentley; K. Auranen; P. J. Davies; T. Grahn; P. T. Greenlees; J. Henderson; A. Herzá?; U. Jakobsson; P. Joshi; R. Julin; S. Juutinen; J. Konki; M. Leino; G. Lotay; A. J. Nichols; A. Obertelli; J. Pakarinen; J. Partanen; P. Peura; P. Rahkila; M. Sandzelius; J. Sarén; C. Scholey; J. Sorri; S. Stolze; J. Uusitalo; R. Wadsworth

2013-07-19T23:59:59.000Z

383

Effect of temperature on electron spectra in the region of the intrinsic-absorption edge of CdGa{sub 2}Se{sub 4}  

Science Conference Proceedings (OSTI)

The results of investigation of the temperature dependence of CdGa{sub 2}Se{sub 4} absorption coefficient in the polarized radiation at 5-300 K and that of the emission intensity at 4.2-77 K are presented. The changes observed for the polarization dependence of absorption coefficient and the radiation intensity with decreasing temperature are attributed to a different velocity of motion of states of the valence-band top {Gamma}{sub 3} + {Gamma}{sub 4} and {Gamma}{sub 2} with changing tetragonal compression.

Kerimova, T. G., E-mail: ktaira@physics.ab.az; Guliyev, R. A. [Academy of Sciences of Azerbajan, Institute of Physics (Azerbaijan)

2011-03-15T23:59:59.000Z

384

The crystallization kinetics of nanothin amorphous TlGa{sub 1-x}Ge{sub x}Se{sub 2} films  

Science Conference Proceedings (OSTI)

The kinetics of phase transformations of amorphous Ge-doped TlGaSe{sub 2} films has been investigated by kinematic electron diffraction. It is shown that the crystallization of 30-nm-thick amorphous films obtained both in the absence of external effects and in an external electric field occurs according to the regularities established by Avrami and Kolmogorov and described by the analytical expression V{sub t} = V{sub 0}[1 - exp(-kt{sup m})]. The activation energies of nucleation and the further growth of nuclei have been determined from the kinetic curves of phase transformations.

Alekberov, E. Sh., E-mail: aeldar@hotbox.ru; Sharifova, A. K.; Ismayilov, D. I. [Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2009-05-15T23:59:59.000Z

385

Indium-Gallium Segregation in CuIn$_{x}$Ga$_{1-x}$Se$_2$: An ab initio based Monte Carlo Study  

E-Print Network (OSTI)

Thin-film solar cells with CuIn$_x$Ga$_{1-x}$Se$_2$ (CIGS) absorber are still far below their efficiency limit, although lab cells reach already 19.9%. One important aspect is the homogeneity of the alloy. Large-scale simulations combining Monte Carlo and density functional calculations show that two phases coexist in thermal equilibrium below room temperature. Only at higher temperatures, CIGS becomes more and more a homogeneous alloy. A larger degree of inhomogeneity for Ga-rich CIGS persists over a wide temperature range, which may contribute to the low observed efficiency of Ga-rich CIGS solar cells.

Ludwig, Christian D R; Felser, Claudia; Schilling, Tanja; Windeln, Johannes; Kratzer, Peter

2010-01-01T23:59:59.000Z

386

Research on polycrystalline thin film submodules based on CuInSe{sub 2} materials. Annual subcontract report, 11 November 1990--31 October 1991  

DOE Green Energy (OSTI)

This report describes progress during the first year of a three-year research program to develop 12%-efficient CuInSe{sub 2} (CIS) submodules with area greater than 900 cm{sup 2}. To meet this objective, the program was divided into five tasks: (1) windows, contacts, substrates; (2) absorber material; (3) device structure; (4) submodule design and encapsulation; and (5) process optimization. In the first year of the program, work was concentrated on the first three tasks with an objective to demonstrate a 9%-efficient CIS solar cell. 7 refs.

Catalano, A.; Arya, R.; Carr, L.; Fieselmann, B.; Lommasson, T.; Podlesny, R.; Russell, L.; Skibo, S.; Rothwarf, A.; Birkmire, R. [Solarex Corp., Newtown, PA (United States)

1992-05-01T23:59:59.000Z

387

TiO2 Nanotubes with a ZnO Thin Energy Barrier for Improved Current Efficiency of CdSe Quantum-Dot-Sensitized Solar Cells  

Science Conference Proceedings (OSTI)

This paper reports the formation of a thin ZnO energy barrier between a CdSe quantum dot (Q dots) sensitizer and TiO{sub 2} nanotubes (TONTs) for improved current efficiency of Q dot-sensitized solar cells. The formation of a ZnO barrier between TONTs and the Q dot sensitizer increased the short-circuit current under illumination and also reduced the dark current in a dark environment. The power conversion efficiency of Q dot-sensitized TONT solar cells increased by 25.9% in the presence of the ZnO thin layer due to improved charge-collecting efficiency and reduced recombination.

Lee, W.; Kang, S. H.; Kim, J. Y.; Kolekar, G. B.; Sung, Y. E.; Han, S. H.

2009-01-01T23:59:59.000Z

388

Surface Treatment of CuInGaSe2 Thin Films and Its Effect on the Photovoltaic Properties of Solar Cells: Preprint  

DOE Green Energy (OSTI)

Solar cells have been fabricated with partial electrolyte treatments of CuInGaSe2 (CIGS) thin-film absorbers in lieu of a CdS layer. Treatment of the absorbers in a containing Cd or Zn solution is shown to produce conditions under which efficient solar cells can be fabricated. A similar effect is also observed in CuInGaSSe2 (CIGSS) graded-bandgap absorbers. These observations can be explained by the ability of Cd and Zn to produce n-type doping or inversion in the surface region. We also provide a brief review of similar work done elsewhere and identify directions for future investigations.

Ramanathan, K.; Hasoon, F.S.; Smith, S.; Young, D.L.; Contreras, M.A.; Johnson, P.K.; Pudov, A.O.; Sites, J.R.

2002-10-01T23:59:59.000Z

389

Role of polycrystallinity in CdTe and CuInSe{sub 2} photovoltaic cells. Annual subcontract report, 1 April 1991--31 March 1992  

DOE Green Energy (OSTI)

The limiting role of polycrystallinity in thin-film solar calls has been reduced somewhat during the past year, and efficiencies of both CdTe and CuInSe{sub 2} cells are approaching 15%. Quantitative separation of loss mechanisms shows that individual losses, with the exception of forward recombination current, can be made comparable to their single crystal counterparts. One general manifestation of the extraneous trapping states in that the voltage of all polycrystalline thin-film cells drifts upward by 10--50 mV following the onset of illumination.

Sites, J.R. [Colorado State Univ., Fort Collins, CO (United States)

1992-11-01T23:59:59.000Z

390

Space-charge-limited currents in an Se{sub 95}As{sub 5} chalcogenide glass-like semiconductor system containing EuF{sub 3} impurities  

Science Conference Proceedings (OSTI)

It is established that charge carrier (hole) transport in the Al-Se{sub 95}As{sub 5} Left-Pointing-Angle-Bracket EuF{sub 3} Right-Pointing-Angle-Bracket -Te structure is effected by unipolar injection currents limited by space charges with the involvement of two capture trap groups. Shallow traps corresponding to charged intrinsic defects C{sub 1}{sup -} are related to broken selenium bonds. Deep traps corresponding to charged intrinsic defects P{sub 2}{sup -} are formed by arsenic atoms with broken coordination. It is shown that the EuF{sub 3} impurity strongly affects the concentration of the capture traps, especially those localized near the Fermi level.

Isayev, A. I.; Mekhtiyeva, S. I.; Qaribova, S. N., E-mail: sqaribova@rambler.ru [Azerbaijan National Academy of Sciences, Abdullaev Institute of Physics (Azerbaijan)

2011-12-15T23:59:59.000Z

391

X-ray diffraction study, magnetic susceptibility, and electric properties of Cu{sub 3}Fe{sub 0.5}Se{sub 2} crystal  

Science Conference Proceedings (OSTI)

Single crystals of the Cu{sub 3}Fe{sub 0.5}Se{sub 2} composition have been grown. The orthorhombic lattice parameters are found to be a = 8.169 A, b = 8.238 A, c = 12.052 A, V = 811.15 A{sup 3}, D{sub x} = 6.23 g/cm{sup 3}, sp. gr. Pnma, Z = 8. The magnetic susceptibility is measured in the range 100 < T < 400 K at H = 2 T. It is established that a crystal transforms into the antiferromagnetic state below T{sub N} = 350 K. The temperature dependences of the electrical conduction ({sigma}), thermal electromotive force ({alpha}), and thermal conduction (k) are measured in the range 80 < T < 400 K; the n value was calculated to be 5 x 10{sup 19} cm{sup -1}.

Guseinov, G. G., E-mail: g.guseinov@rambler.ru; Ragimov, S. S.; Hasani Barbaran, J.; Agamirzoeva, G. M. [National Academy of Sciences, Institute of Physics (Azerbaijan)

2010-07-15T23:59:59.000Z

392

Research on high efficiency, large-area CuInSe{sub 2}-based thin-film modules. Annual subcontract report, 1 May 1991--30 April 1992  

DOE Green Energy (OSTI)

Objective was to demonstrate 12.5% aperture efficient, large area (3900 cm{sup 2}) encapsulated thin thin CuInSe{sub 2} (CIS) modules. The module design consists of 53 series-connected ZnO/CdS/CIS/Mo/glass cells fabricated on a glass substrate. A baseline characterization of the CIS modules was established during Phase 1. Maps of open circuit voltage provide information on junction quality uniformity. Maps of cell voltages at fixed forward bias show variations in resistance losses due to interconnects. Individual cell I-V curves can be evaluated. Physical nature of defects is correlated using OBIC, EBIC, SEM, tape adhesion, etc. A new world record of 37.7 W and 9.7% aperture efficiency was attained for an encapsulated module; an unencapsulated CIS module plate achieved 40.8 W and 10.5% aperture efficiency.

Mitchell, K.W.; Eberspacher, C. [Siemens Solar Industries, Camarillo, CA (United States)

1993-02-01T23:59:59.000Z

393

Research on polycrystalline thin-film CuGaInSe{sub 2} solar cells. Annual subcontract report, 3 May 1991--2 May 1992  

DOE Green Energy (OSTI)

This report describes research to fabricate high-efficiency CdZnS/CuInGaSe{sub 2} (CIGS) thin-film solar cells, and to develop improved transparent conductor window layers such as ZnO. A specific technical milestone was the demonstration of an air mass (AM) 1.5 global, 13% efficient, 1-cm{sup 2}-total-area CIGS thin-film solar cell. Our activities focused on three areas. First, a CIGS deposition: system was modified to double its substrate capacity, thus increasing throughput, which is critical to speeding the process development by providing multiple substrates from the same CIGS run. Second, new tooling was developed to enable an investigation of a modified aqueous CdZnS process. The goal was to improve the yield of this critical step in the device fabrication process. Third, our ZnO sputtering system was upgraded to improve its reliability, and the sputtering parameters were further optimized to improve its properties as a transparent conducting oxide. The characterization of the new CIGS deposition system substrate fixturing was completed, and we produced good thermal uniformity and adequately high temperatures for device-quality CIGS deposition. Both the CIGS and ZnO deposition processes were refined to yield a ZnO//Cd{sub 0.82}Zn{sub 0.18}S/CuIn{sub 0.80}Ga{sub 0.20}Se{sub 2} cell that was verified at NREL under standard testing conditions at 13.1% efficiency with V{sub oc} = 0.581 V, J{sub sc} = 34.8 mA/cm{sup 2}, FF = 0.728, and a cell area of 0.979 cm{sup 2}.

Stanbery, B.J.; Chen, W.S.; Devaney, W.E.; Stewart, J.W. [Boeing Co., Seattle, WA (United States). Defense and Space Systems Group

1992-11-01T23:59:59.000Z

394

Anisotropy analysis of thermoelectric properties of Bi{sub 2}Te{sub 2.9}Se{sub 0.1} prepared by SPS method  

Science Conference Proceedings (OSTI)

The n-type Bi{sub 2}Te{sub 2.9}Se{sub 0.1} materials were synthesized by the direct fusion technique. The polycrystalline samples were fabricated by the uniaxial pressing of powders in spark plasma sintering (SPS) apparatus. The materials were subjected to the heat treatment in H{sub 2}-Ar atmosphere at 470 K for 24 h. The influence of preparation conditions on the anisotropy of electrical and thermal properties was thoroughly studied for the direction perpendicular and parallel to the pressing force. The microstructure and the chemical composition of both types of samples were examined using a scanning microscope (SEM) equipped with an X-ray energy dispersion detector (EDX). The XRD method was applied for the phase analysis of materials, as well as, for determination of preferred orientation of Bi{sub 2}Te{sub 2.9}Se{sub 0.1} grains. The Seebeck coefficient distribution was studied by the scanning thermoelectric microprobe (STM). Temperature dependences of thermoelectric properties (thermal and electrical conductivities, Seebeck coefficient) were measured in the temperature from 300 K to 550 K. The statistical analysis of results has shown strong influence of pressing force direction both on structural and transport properties. The applied heat treatment of materials significantly improves their thermoelectric figure of merit. Particularly, it was found that annealing in H2-Ar atmosphere leads to enhancement of the ZT three times up to {approx}0.7 at 370 K in perpendicular direction to the pressing force.

Zybala, Rafal; Wojciechowski, Krzysztof T. [Thermoelectric Research Laboratory, Department of Inorganic Chemistry, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059, Cracow (Poland)

2012-06-26T23:59:59.000Z

395

Nanoscale Measurements of the Surface Photovoltage in Cu(In,Ga)Se2, Cu2ZnSn4, and Cu2ZnSnSe4 Thin Films: The Role of the Surface Electronics on the Efficiency of Solar Cells: Preprint  

DOE Green Energy (OSTI)

We report on recent advances in the development of nanoscale measurements of the surface photovoltage (SPV) based on scanning tunneling microscopy (STM) and its application to the kesterites Cu2ZnSnS4 (CZTS) and Cu2ZnSnSe4 (CZTSe). One critical aspect of the electronic structure of Cu(In,Ga)Se2 (CIGS) that has yet to be determined in their related kesterite compounds is the character of the surface electronics. In CIGS, spontaneous deviations in the stoichiometry of the surface cause a depletion (or even a type inversion) region that reinforces the CIGS homojunction. First-principle calculations predict that this inversion region will be more difficult to form in CZTS. In this contribution, the characteristics of the surface space charge region for both CIGS and CZTS(e) are investigated by STM. The implications of the results of these measurements on the future development of CZTS solar cells will be discussed.

Du, H.; Romero, M. J.; Repins, I.; Teeter, G.; Noufi, R.; Al-Jassim, M. M.

2011-07-01T23:59:59.000Z

396

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

cost, low?carbon rural energy  services.  Energy Policy, 39(Modi, V.  (2005).  Energy services for the poor (New York, of low?carbon energy services in rural communities.  The 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

397

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

Lifetime costs for wind/solar integration into Orinoco and Lifetime costs for wind/solar integration into Orinoco and biogas, as well as integration of wind and solar.    The 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

398

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

street lights  . light sensors on the street lights do not function, and installation Smaller street lights Biogas  Reduce diesel 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

399

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

Wind turbine . have taken me from wind turbines to playing games with diesel plant capacity Wind turbine (class 2) Replace street 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

400

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

fuels   Feed?in tariffs for renewable energy technologies  as the  marginal tariff rate x energy saved.    Taking into energy costs relative to baseline diesel  generation supply and tariff 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

biogas/anaerobic_digestion/casestudy.pdf  Aycrigg, M.  (of biogas from  the anaerobic digestion of animal waste.  production through anaerobic digestion, or oil  extraction 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

402

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

House, D.  W.  (2006).  Biogas Handbook.  Alternative House term operation of a  small biogas/diesel dual?fuel engine generation with  biogas in Costa Rica.  Retrieved from 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

403

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

the case of diesel microgrids.  SAPIENS, 5(1), 1–9.  Rural Electrification Using Microgrids.  Journal of Energy the case with diesel microgrids.  While grid extension is 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

404

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

lifetime costs for both wind and solar.   Thus, energy energy generated by the wind or sun before the grid is in  operation, which contributes to slightly elevated system costs.  cost of  conserved energy curves, calculated for the class1 and class 2 wind 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

405

Limitations of the advection-diffusion equation for modeling tephra fallout: 1992 eruption of Cerro Negro Volcano, Nicaragua.  

E-Print Network (OSTI)

??Detailed mapping and granulometric analyses of the 1992 Cerro Negro tephra blanket reveal remarkable departures from the expected distribution of tephra. Isomass maps show that… (more)

Martin, Kristin Terese

2004-01-01T23:59:59.000Z

406

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

GtCO 2 ?eq/yr)  Energy Supply  Industry  Forestry/Forests of energy supply, transportation, buildings, industry, 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

407

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

well as residential electricity bills.  The poverty metrics s analysis of monthly electricity bills in Orinoco and trouble paying the electricity bill, which is three times 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

408

Estimating the potential returns to research and development from sorghum value added products in El Salvador and Nicaragua.  

E-Print Network (OSTI)

??Sorghum bicolor (L.) Moench is a drought tolerant crop able to adapt to hot and dry weather. It has excellent chemical and physical properties, which… (more)

Jaen Celada, Jaeljattin R.

2011-01-01T23:59:59.000Z

409

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

E.  I. , Barley, C.  D. , & Drouilhet, S.  (1997).  Diesel Baring?Gould, Barley, & Drouilhet, 1997; IEG, 2008; Solano?

Casillas, Christian E.

2012-01-01T23:59:59.000Z

410

Development of a computer model for polycrystalline thin-film CuInSe sub 2 and CdTe solar cells  

DOE Green Energy (OSTI)

This report describes work to develop an accurate numerical model for CuInSe{sub 2} (CIS) and CdTe-based solar cells capable of running on a personal computer. Such a model will aid researchers in designing and analyzing CIS- and CdTe-based solar cells. ADEPT (A Device Emulation Pregrain and Tool) was used as the basis for this model. An additional objective of this research was to use the models developed to analyze the performance of existing and proposed CIS- and CdTe-based solar cells. The development of accurate numerical models for CIS- and CdTe-based solar cells required the compilation of cell performance data (for use in model verification) and the compilation of measurements of material parameters. The development of the numerical models involved implementing the various physical models appropriate to CIS and CdTe, as well as some common window. A version of the model capable of running on an IBM-comparable personal computer was developed (primary code development is on a SUN workstation). A user-friendly interface with pop-up menus is continuing to be developed for release with the IBM-compatible model.

Gray, J.L.; Schwartz, R.J.; Lee, Y.J. (Purdue Univ., Lafayette, IN (United States))

1992-09-01T23:59:59.000Z

411

Research on high-efficiency, large-area, CuInSe{sub 2}-based thin- film modules. Annual subcontract report, 1 May 1992--15 Aug 1993  

DOE Green Energy (OSTI)

This report describes work to demonstrate 12.5% aperture efficient, large-area (3900-cm{sup 2}) encapsulated thin-film CuInSe{sub 2} (CIS) photovoltaic modules. Module design consists of 53 series-connected ZnO/CdS/CIS/Mo/glass cells fabricated on a 4141-cm{sup 2} (128.6 {times} 32.2 cm) glass substrate with a nominal aperture area of 3895 cm{sup 2} (127.3 {times} 30.6 cm). Four CIS modules were shipped to NREL under the terms of the subcontract. Phase 2 consisted of fabricating large-area (3900-cm{sup 2}) modules for high-performance module processing. The large-area parts proved to be cumbersome, and we decided to use smaller substrates (100 cm{sup 2}) to accelerate the progress in solving the types of technical challenges that were discovered in processing large-area parts, and then to apply these solutions to larger areas to meet the objectives of the investigation. Most critical issues determining module yield losses can be grouped into three major categories: (1) Uniformity and reproducibility of the absorber formation process dominates the fundamental performance of the material over a large area, (2) interaction of the substrate with the Mm requires appropriate selection criterial and preparation techniques for minimizing defects that lead to shunting and areas of poor photoresponse, and (3) performance losses near interconnects reduce module performance and can cause inadequate performance through module durability testing.

Knapp, K.E.; Gay, R.R. [Siemens Solar Industries, Camarillo, CA (United States)

1994-01-01T23:59:59.000Z

412

Thickness Effect of Al-Doped ZnO Window Layer on Damp-Heat Stability of CuInGaSe2 Solar Cells  

DOE Green Energy (OSTI)

We investigated the damp heat (DH) stability of CuInGaSe{sub 2} (CIGS) solar cells as a function of thickness of the Al-doped ZnO (AZO) window layer from the 'standard' 0.12 {micro}m to a modest 0.50 {micro}m over an underlying 0.10-{micro}m intrinsic ZnO buffer layer. The CIGS cells were prepared with external electrical contact using fine Au wire to the tiny 'standard' Ni/Al (0.05 {micro}m/3 {micro}m) metal grid contact pads. Bare cell coupons and sample sets encapsulated in a specially designed, Al-frame test structure with an opening for moisture ingress control using a TPT backsheet were exposed to DH at 85 C and 85% relative humidity, and characterized by current-voltage (I-V), quantum efficiency (QE), and (electrochemical) impedance spectroscopy (ECIS). The results show that bare cells exhibited rapid degradation within 50-100 h, accompanied by film wrinkling and delamination and corrosion of Mo and AlNi grid, regardless of AZO thickness. In contrast, the encapsulated cells did not show film wrinkling, delamination, and Mo corrosion after 168 h DH exposure; but the trend of efficiency degradation rate showed a weak correlation to the AZO thickness.

Pern, F. J.; Mansfield, L.; DeHart, C.; Glick, S. H.; Yan, F.; Noufi, R.

2011-01-01T23:59:59.000Z

413

Advanced processing technology for high-efficiency thin-film CuInSe{sub 2} solar cells. Annual subcontract report, 1 March 1992--28 February 1993  

DOE Green Energy (OSTI)

This report describes work to develop novel fabrication for CuInSe{sub 2} (CIS) solar cells that will result in improved performance and cost effectiveness at the manufacturing level. The primary approach involves all solid-state processing for CIS. This was augmented by work to provide novel alternatives for the formation of the window layer/heterojunction contact. Inherent to the project was the need to develop a generic understanding of the relationship between processing and performance so that broad-based transfer to industry can be facilitated. We achieved good-electronic-quality CIS by the use of two selenization procedures for predeposited metal layers. We achieved good stoichiometry throughout the bulk of the film, attained grain sizes of up to 1 {mu}m, and measured electron mobilities of up to 60 cm{sup 2}V-s. However, there is a complex relationship between grain size, adhesion, and performance. Our primary approach to characterization was to fabricate ZnO/CIS test devices and measure as many properties as possible in device format. We are also developing reactive sputtering of ZnO as an alternative window layer technology.

Morel, D.L.; Attar, G.; Karthikeyan, S.; Muthaiah, A.; Zafar, A. [University of South Florida, Tampa, FL (United States)

1993-08-01T23:59:59.000Z

414

Excited state carrier dynamics in CdS{sub x}Se{sub 1-x} semisconductor alloys as studied by ultrafast fluorescence spectroscopy  

Science Conference Proceedings (OSTI)

This dissertation discusses studies of the electron-hole pair dynamics of CdS{sub x}Se{sub 1-x} semiconductor alloys for the entire compositional range from x = 1 to x = 0 as examined by the ultrafast fluorescence techniques of time correlated single photon counting and fluorescence upconversion. Specifically, samples with x = 1, .75, .5, .25, and 0 were studied each at a spread of wavelengths about its respective emission maximum which varies according to {lambda} = 718nm - 210x nm. The decays of these samples were found to obey a Kohlrausch distribution, exp [(t/{tau}){sup {beta}}], with the exponent 3 in the range .5-.7 for the alloys. These results are in agreement with those expected for localization due to local potential variations resulting from the random distribution of sulfur and selenium atoms on the element VI A sub-lattice. This localization can be understood in terms of Anderson localization of the holes in states whose energy distribution tails into the forbidden energy band-gap. Because these states have energy dependent lifetimes, the carriers can decay via many parallel channels. This distribution of channels is the ultimate source of the Kohlrausch form of the fluorescence decays.

Gadd, S.E.

1995-08-01T23:59:59.000Z

415

Influence of Damp Heat on the Electrical, Optical, and Morphological Properties of Encapsulated CuInGaSe2 Devices: Preprint  

DOE Green Energy (OSTI)

CuInGaSe2 (CIGS) devices, encapsulated with different backsheets having different water vapor transmission rates (WVTR), were exposed to damp heat (DH) at 85C and 85% relative humidity (RH) and characterized periodically to understand junction degradation induced by moisture ingress. Performance degradation of the devices was primarily driven by an increase in series resistance within first 50 h of exposure, resulting in a decrease in fill factor and, accompanied loss in carrier concentration and widening of depletion width. Surface analysis of the devices after 700-h DH exposure showed the formation of Zn(OH)2 from hydrolysis of the Al-doped ZnO (AZO) window layer by the moisture, which was detrimental to the collection of minority carriers. Minority carrier lifetimes observed for the CIGS devices using time resolved photoluminescence (TRPL) remained relatively long after DH exposure. By etching the DH-exposed devices and re-fabricating with new component layers, the performance of reworked devices improved significantly, further indicating that DH-induced degradation of the AZO layer and/or the CdS buffer was the primary performance-degrading factor.

Sundaramoorthy, R.; Pern, F. J.; Teeter, G.; Li, J. V.; Young, M.; Kuciauskas, D.; Call, N.; Yan, F.; To, B.; Johnston, S.; Noufi, R.; Gessert, T. A.

2011-08-01T23:59:59.000Z

416

Thickness Effect of Al-Doped ZnO Window Layer on Damp Heat Stability of CuInGaSe2 Solar Cells: Preprint  

DOE Green Energy (OSTI)

We investigated the damp heat (DH) stability of CuInGaSe2 (CIGS) solar cells as a function of thickness of the Al-doped ZnO (AZO) window layer from the 'standard' 0.12 ?m to a modest 0.50 ?m over an underlying 0.10-?m intrinsic ZnO buffer layer. The CIGS cells were prepared with external electrical contact using fine Au wire to the tiny 'standard' Ni/Al (0.05 ?m/3 ?m) metal grid contact pads. Bare cell coupons and sample sets encapsulated in a specially designed, Al-frame test structure with an opening for moisture ingress control using a TPT backsheet were exposed to DH at 85oC and 85% relative humidity, and characterized by current-voltage (I-V), quantum efficiency (QE), and (electrochemical) impedance spectroscopy (ECIS). The results show that bare cells exhibited rapid degradation within 50-100 h, accompanied by film wrinkling and delamination and corrosion of Mo and AlNi grid, regardless of AZO thickness. In contrast, the encapsulated cells did not show film wrinkling, delamination, and Mo corrosion after 168 h DH exposure; but the trend of efficiency degradation rate showed a weak correlation to the AZO thickness.

Pern, F. J.; Mansfield, L.; DeHart, C.; Glick, S. H.; Yan, F.; Noufi, R.

2011-07-01T23:59:59.000Z

417

Processing of CuInSe{sub 2}-based solar cells: Characterization of deposition processes in terms of chemical reaction analyses. Phase I annual report, 6 May 1995--5 May 1996  

DOE Green Energy (OSTI)

An interdisciplinary team of five graduate students and four faculty have made considerable progress during Phase I of this program. The objective of this initiative is to develop a high-rate processing sequence to produce device-quality thin films of CI(G)S(Se). A comprehensive CI(G)S(Se) device fabrication capability is being established that includes thermal evaporation and plasma assisted deposition of CI(G)S(Se), rapid thermal processing, DC sputtering of both undoped and doped ZnO, CBD and MOCVD of CdS, and rf sputtering of Mo. Insight into the materials processing issues is being addressed through assessment of the thermochemistry and phase equilibria of the CI(G)S(Se) system, single crystal growth studies, investigation of Na effects on the growth, and detailed materials characterization.

Anderson, T. [Univ. of Florida, Gainesville, FL (United States)

1997-04-01T23:59:59.000Z

418

JOURNAL DE PHYSIQUE Colloque C3, suppl&ment au no 9, Tonze 36, Septembre 1975, page C3-101 THE p-CuInSe,/n-CdS HETERODIODE :PHOTOVOLTAIC  

E-Print Network (OSTI)

-CuInSe,/n-CdS HETERODIODE :PHOTOVOLTAIC DETECTOR, SOLAR CELL AND LIGHT EMITTING DIODE S. WAGNER, J. L. SHAY and H. M. KASPER efficiencies higher than 10 '%,.Its potential as a light emitting diode requires further study. Acknowledgments

Paris-Sud XI, Université de

419

Total All Countries Exports of Crude Oil and Petroleum Products by  

U.S. Energy Information Administration (EIA) Indexed Site

Destination: Total All Countries Afghanistan Albania Algeria Andora Angola Anguilla Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahama Islands Bahrain Barbados Belarus Belgium Belize Benin Bolivia Bosnia and Herzegovina Brazil Brunei Bulgaria Burma Bermuda Cambodia Cameroon Canada Cayman Islands Chad Chile China Colombia Congo (Brazzaville) Congo (Kinshasa) Costa Rica Croatia Cyprus Czech Republic Denmark Djbouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Fiji Finland France French Guiana French Pacific Islands Gabon Georgia, Republic of Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guatemala Guinea Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia Iran Iraq Ireland Israel Italy Ivory Coast Jamaica Japan Jordon Kazakhstan Kenya Korea, South Korea, North Kyrgyzstan Kutubu Kuwait Latvia Lebanon Liberia Libya Lithuania Macau S.A.R. Macedonia Madagascar Malaysia Maldives Mali Malta Marshall Islands Mauritania Mauritius Mexico Micronesia, Federated States of Midway Islands Moldova Monaco Mongolia Montenegro Montserrat Morocco Mozambique Namibia Nepal Netherlands Netherlands/Antilles New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norway Oman Pakistan Panama Papau New Guinea Paracel Islands Paraguay Peru Philippines Poland Portugal Puerto Rico Qatar Romania Russia St. Kitts and Nevis St. Lucia St. Pierre and Miquelon St. Vincent and the Grenadines Samoa San Marino Saudi Arabia Senegal Serbia and Montenegro Seychelles Sierra Leone Singapore Slovakia Slovenia Soloman Islands South Africa Spain Spratly Islands Sri Lanka Sudan Suriname Swaziland Sweden Switzerland Syria Taiwan Tanzania Thailand Tonga Togo Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Uganda Ukraine United Arab Emirates United Kingdom Uruguay Uzbekistan Vanuatu Venezuela Vietnam Virgin Islands (British) Virgin Islands (U.S.) Yemen Yugoslavia Zambia Period-Unit: Monthly-Thousand Barrels Monthly-Thousand Barrels per Day Annual-Thousand Barrels Annual-Thousand Barrels per Day

420

Forest Stewardship Standards A Survival Guide  

E-Print Network (OSTI)

: Karlis Latisenko Nicaragua: Jaime Rafael Guillen Russia: Yuri Pautov Sweden: Peter Roberntz, Per Larsson

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Investigation of the surface chemical and electronic states of pyridine-capped CdSe nanocrystal films after plasma treatments using H{sub 2}, O{sub 2}, and Ar gases  

SciTech Connect

Surface chemical bonding and the electronic states of pyridine-capped CdSe nanocrystal films were evaluated using x-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy before and after plasma treatments using H{sub 2}, O{sub 2}, and Ar gases from the viewpoint of studying the effects of surface capping organic molecules and surface oxidation. Surface capping organic molecules could be removed during the plasma treatment due to the chemical reactivity, ion energy transfer, and vacuum UV (VUV) of the plasma gases. With O{sub 2} plasma treatment, surface capping organic molecules were effectively removed but substantial oxidation of CdSe occurred during the plasma treatment. The valence band maximum energy (E{sub VBM}) of CdSe nanocrystal films mainly depends on the apparent size of pyridine-capped CdSe nanocrystals, which controls the interparticle distance, and also on the oxidation of CdSe nanocrystals. Cd-rich surface in O{sub 2} and H{sub 2} plasma treatments partially would compensate for the decrease in E{sub VBM}. After Ar plasma treatment, the smallest value of E{sub VBM} resulted from high VUV photon flux, short wavelength, and ion energy transfer. The surface bonding states of CdSe had a strong influence on the electronic structure with the efficient strip of capping molecules as well as different surface oxidations and surface capping molecule contents.

Wang, Seok-Joo; Kim, Hyuncheol; Park, Hyung-Ho; Lee, Young-Su; Jeon, Hyeongtag; Chang, Ho Jung [Department of Materials Science and Engineering, Yonsei University, Seoul 120-749 (Korea, Republic of); Materials Science and Technology Research Division, KIST, Seoul 130-650 (Korea, Republic of); Division of Materials Science and Engineering, Hanyang University, Seoul 133-791 (Korea, Republic of); Department of Electronics Engineering, Dankook University, Cheonan-Si Chungnam 330-714 (Korea, Republic of)

2010-07-15T23:59:59.000Z

422

Hg and Se capture and fly ash carbons from combustion of complex pulverized feed blends mainly of anthracitic coal rank in Spanish power plants  

Science Conference Proceedings (OSTI)

In this work, the petrology and chemistry of fly ashes produced in a Spanish power plant from the combustion of complex pulverized feed blends made up of anthracitic/meta-anthracitic coals, petroleum, and natural coke are investigated. It was found that the behavior of fly ash carbons derived from anthracitic coals follows relatively similar patterns to those established for the carbons from the combustion of bituminous coals. Fly ashes were sampled in eight hoppers from two electrostatic precipitator (ESP) rows. The characterization of the raw ashes and their five sieved fractions (from {gt}150 to {lt}25 {mu}m) showed that glassy material, quartz, oxides, and spinels in different proportions are the main inorganic components. As for the organic fraction, the dominant fly ash carbons are anisotropic carbons, mainly unburned carbons derived from anthracitic vitrinite. The concentration of Se and Hg increased in ashes of the second ESP row, this increase being related to the higher proportion of anisotropic unburned carbons, particularly those largely derived from anthracitic vitrinite in the cooler ashes of the ESP (second row) and also related to the decrease in the flue gas temperature. This suggests that the flue gas temperature plays a major role in the concentration of mercury for similar ratios of unburned carbons. It was also found that Hg is highly concentrated in the medium-coarser fractions of the fly ashes ({gt} 45 {mu}m), there being a positive relationship between the amount of these carbons, which are apparently little modified during the combustion process, in the medium-coarse fractions of the ashes and the Hg retention. According to the results obtained, further research on this type of fly ash could be highly productive. 28 refs., 10 figs., 8 tabs.

I. Surez-Ruiz; J.C. Hower; G.A. Thomas [Instituto Nacional del Carbon (INCAR-CSIC), Oviedo (Spain)

2007-01-15T23:59:59.000Z

423

Fundamental studies of the effect of crystal defects on CuInSe{sub 2}/CdS heterojunction behavior: Final report, 28 June 1993--30 June 1998  

DOE Green Energy (OSTI)

This report describes the work performed by the University of Illinois at Urbana-Champaign. The following results were obtained under the work funded by this subcontract: (1) Point defects and electronic properties of Cu(In{sub 1-x}Ga{sub x})Se{sub 2}: New record results for hole mobilities in Cu(In{sub 1-x}Ga{sub x})Se{sub 2} based on single crystals grown by Rockett's group; Demonstrated the role of Ga in determining hole concentrations; Showed that Ga does not affect the hole mobility in this material and why this is the case; Determined the diffusion coefficient for Ga in single-crystal Cu(In{sub 1-x}Ga{sub x})Se{sub 2}; Demonstrated the structure and optoelectronic properties of the CuIn{sub 3}Se{sub 5} ordered-defect phase of CuInSe{sub 2}; Characterized the detailed effects of Na on Cu(In{sub 1-x}Ga{sub x})Se{sub 2} solar cells and on the fundamental properties of the material itself (reduces compensating donors in p-type materials); and In collaboration with groups at the Universities of Salford and Liverpool in the United Kingdom, studied the effect of ion implantation damage on Cu(In{sub 1-x}Ga{sub x})Se{sub 2} single-crystals. (2) Materials for and characterization of devices: Developed a novel contact metallurgy that improves adhesion to the underlying Mo back-contact in solar cells made with Cu(In{sub 1-x}Ga{sub x})Se{sub 2}; (This material has also yielded substantial novel materials science behaviors, including grain rotation and growth prior to phase separation in a metastable binary alloy.) Characterized the electroluminescence as a function of temperature and Ga content in Cu(In{sub 1-x}Ga{sub x})Se{sub 2} solar cells and showed that the radiative recombination pathways are not band-to-band as in normal semiconductors, but rather, proceed through defect states; and Working with a group at the University of Uppsala in Sweden, demonstrated novel aspects of the bonding and chemistry of dip-coated CdS heterojunction materials used as heterojunction partner materials in Cu(In{sub 1-x}Ga{sub x})Se{sub 2} solar cells.

Rockett, A.

1999-11-17T23:59:59.000Z

424

Development of a computer model for polycrystalline thin-film CuInSe{sub 2} and CdTe solar cells. Annual subcontract report, 1 January 1990--31 December 1990  

DOE Green Energy (OSTI)

This report describes work to develop a highly accurate numerical model for CuInSe{sub 2} and CdTe solar cells. ADEPT (A Device Emulation Program and Toolbox), a one-dimensional semiconductor device simulation code developed at Purdue University, was used as the basis of this model. An additional objective was to use ADEPT to analyze the performance of existing and proposed CuInSe{sub 2} and CdTe solar cell structures. The work is being performed in two phases. The first phase involved collecting device performance parameters, cell structure information, and material parameters. This information was used to construct the basic models to simulate CuInSe{sub 2} and CdTe solar cells. This report is a tabulation of information gathered during the first phase of this project on the performance of existing CuInSe{sub 2} and CdTe solar cells, the material properties of CuInSr{sub 2}, CdTe, and CdS, and the optical absorption properties of CuInSe{sub 2}, CdTe, and CdS. The second phase will entail further development and the release of a version of ADEPT tailored to CuInSe{sub 2} and CdTe solar cells that can be run on a personal computer. In addition, ADEPT will be used to analyze the performance of existing and proposed CuInSe{sub 2} and CdTe solar cell structures. 110 refs.

Gray, J.L.; Schwartz, R.J.; Lee, Y.J. [Purdue Univ., Lafayette, IN (United States)

1992-04-01T23:59:59.000Z

425

High quality ultrathin Bi{sub 2}Se{sub 3} films on CaF{sub 2} and CaF{sub 2}/Si by molecular beam epitaxy with a radio frequency cracker cell  

Science Conference Proceedings (OSTI)

We report a method to fabricate high quality Bi{sub 2}Se{sub 3} thin films using molecular beam epitaxy with a radio frequency cracker cell as an atomic selenium source. With Se-to-Bi ratios close to exact stoichiometry, optimal layer-by-layer growth of high quality Bi{sub 2}Se{sub 3} thin films with smooth surfaces has been achieved on CaF{sub 2}(111) substrates and Si(111) substrates with a thin epitaxial CaF{sub 2} buffer layer (CaF{sub 2}/Si). Transport measurements show a characteristic weak-antilocalization magnetoresistance in all the films, with the emergence of a weak-localization contribution in the ultrathin film limit. Quantum oscillations, attributed to the topological surface states have been observed, including in films grown on CaF{sub 2}/Si.

Zhang Li; Dolev, Merav [Department of Applied Physics, Stanford University, Stanford, California 94305 (United States); Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305 (United States); Hammond, Robert [Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305 (United States); Liu Min [Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305 (United States); Department of Physics, Stanford University, Stanford, California 94305 (United States); Palevski, Alexander [School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv (Israel); Kapitulnik, Aharon [Department of Applied Physics, Stanford University, Stanford, California 94305 (United States); Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305 (United States); Department of Physics, Stanford University, Stanford, California 94305 (United States)

2012-10-08T23:59:59.000Z

426

OCEAN DRILLING PROGRAM LEG 115 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

by the following agencies: Department of Energy, Mines and Resources (Canada) Deutsche Forschungsgemeinschaft mantle-fixed hotspots (Morgan, 1981; Duncan, 1981). Some aseismic ridges (Seychelles bank, Gaussberg

427

Le Cercle Benveniste est un club informel de linguistique. Il se veut un forum de discussion o toute personne s'intressant la linguistique peut venir changer et dbattre, informellement et en franais, des  

E-Print Network (OSTI)

LE CERCLE Le Cercle Benveniste est un club informel de linguistique. Il se veut un forum de discussion où toute personne s'intéressant à la linguistique peut venir échanger et débattre, informellement impasses ; bref, explorer différents aspects du langage, à la recherche de Problèmes de linguistique

Maurer, Frank

428

Phase stability, electrochemical stability and ionic conductivity of the Li[subscript 10±1]MP[subscript 2]X[subscript 12] (M = Ge, Si, Sn, Al or P, and X = O, S or Se) family of superionic conductors  

E-Print Network (OSTI)

We present an investigation of the phase stability, electrochemical stability and Li[superscript +] conductivity of the Li[subscript 10±1]MP[subscript 2]X[subscript 12] (M = Ge, Si, Sn, Al or P, and X = O, S or Se) family ...

Ong, Shyue Ping

429

Computer modelling and estimation of recruitment patterns of non-branching coral colonies at three sites in the Wakatobi Marine Park, S.E. Sulawesi, Indonesia; implications for coral reef conservation  

Science Conference Proceedings (OSTI)

We have studied growth and estimated recruitment of massive coral colonies at three sites, Kaledupa, Hoga and Sampela, separated by about 1.5 km in the Wakatobi Marine National Park, S.E. Sulawesi, Indonesia. There was significantly higher species richness ... Keywords: Acropora, Anthropogenic effects, Banjo, Coral growth, Coral mining, Modelling, Sedimentation, Transects, Videophotography, Visibility

M.James C Crabbe; David J Smith

2003-02-01T23:59:59.000Z

430

Advanced processing of CdTe- and CuIn{sub x}Ga{sub 1{minus}x}Se{sub 2}-based solar cells. Phase 1 annual subcontract report, 18 April 1995--17 April 1996  

DOE Green Energy (OSTI)

The main objective of this project to develop high-efficiency CdTe solar cells based on processing conditions favorable for manufacturing processes. This report presents the results on work performed during the first phase of this project. One of the major issues addressed is the use of soda-lime glass substrates in place of the borosilicate glass often used for laboratory devices; another task is the preparation of Cu(In, Ga) Se{sub 2} solar cells by selenizing suitable precursor films. Emphasis is placed on processing and how different reaction schemes affect device performance. It was found that different reaction schemes not only change the bulk properties of Cu(In, Ga) Se{sub 2}, but also its surface properties, which critically affect device performance. Although the objective is to optimize processing to meet the manufacturing constraints, work has not been limited within these requirements.

Morel, D.L.; Ferekides, C.S. [Univ. of South Florida, Tampa, FL (United States)

1997-03-01T23:59:59.000Z

431

Solar Cells from Plastics? Mission Possible at the PHaSE Energy Research Center, UMass Amherst (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)  

DOE Green Energy (OSTI)

'Solar Cells from Plastics? Mission Possible at the PHaSE Energy Research Center, UMass Amherst' was submitted by the Polymer-Based Materials for Harvesting Solar Energy (PHaSE) EFRC to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. PHaSE, an EFRC co-directed by Thomas P. Russell and Paul M. Lahti at the University of Massachusetts, Amherst, is a partnership of scientists from six institutions: UMass (lead), Oak Ridge National Laboratory, Pennyslvania State University, Rensselaer Polytechnic Institute, and the University of Pittsburgh. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges.

Russell, Thomas P; Lahti, Paul M. (PHaSE - Polymer-Based Materials for Harvesting Solar Energy); PHaSE Staff

2011-05-01T23:59:59.000Z

432

Structural and conductivity studies of CsK(SO{sub 4}){sub 0.32}(SeO{sub 4}){sub 0.68}Te(OH){sub 6}  

SciTech Connect

The compound CsK(SO{sub 4}){sub 0.32}(SeO{sub 4}){sub 0.68}Te(OH){sub 6} crystallizes in the monoclinic P2{sub 1}/n space group. It was analyzed, at room temperature, using X-ray diffractometer data. The main feature of these atomic arrangements is the coexistence of three and different anions (SO{sub 4}{sup 2-}, SeO{sub 4}{sup 2-} and TeO{sub 6}{sup 6-}groups) in the unit cell, connected by hydrogen bonds which make the building of the crystal. The thermal analysis of the title compound shows three distinct endothermal peaks at 435, 460 and 475 K. Complex impedance measurements are performed on this material as a function of both temperature and frequency. The electric conduction has been studied. The temperature dependence on the conductivity indicates that the sample became an ionic conductor at high temperature. - Graphical abstract: Projection of crystal structure CsK(SO{sub 4}){sub 0.32}(SeO{sub 4}){sub 0.68}Te(OH){sub 6} on the ab plane. Highlights: Black-Right-Pointing-Pointer We have studied the results of the crystal structure of the new mixed compound. Black-Right-Pointing-Pointer We have characterized the phase transition observed in DSC curve. Black-Right-Pointing-Pointer The protonic conduction in our material is probably due to a hopping mechanism.

Djemel, M., E-mail: jmal_manel@yahoo.fr [Laboratoire de Chimie Inorganique, Universite de Sfax, Faculte des Sciences de Sfax, BP 1171, 3000 Sfax (Tunisia); Abdelhedi, M., E-mail: m_abdelhedi2002@yahoo.fr [Laboratoire de Chimie Inorganique, Universite de Sfax, Faculte des Sciences de Sfax, BP 1171, 3000 Sfax (Tunisia); Laboratoire Leon Brouillon, CE/Saclay, 91191 Gif-Sur-Yvette Cedex (France); Zouari, N., E-mail: bizrirl@yahoo.fr [Laboratoire de l'Etat solide, Universite de Sfax, Faculte des Sciences de Sfax, BP 1171, 3000 Sfax (Tunisia); Dammak, M., E-mail: meddammak@yahoo.fr [Laboratoire de Chimie Inorganique, Universite de Sfax, Faculte des Sciences de Sfax, BP 1171, 3000 Sfax (Tunisia); Kolsi, A.W., E-mail: kolsi_abdelhwaheb@yahoo.fr [Laboratoire de Chimie Inorganique, Universite de Sfax, Faculte des Sciences de Sfax, BP 1171, 3000 Sfax (Tunisia)

2012-12-15T23:59:59.000Z

433

Solar Power Potential in SE New Mexico  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Power Potential in Southeast New Mexico Solar Power Potential in Southeast New Mexico Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWh/sq meter power production potential As the accompanying map of New Mexico shows, the WIPP site enjoys abundant year-round sunshine. With an average solar power production potential of 6-7 kWh/sq meter per day, one exciting project being studied for location at WIPP is a 30-50 MW Solar Power Tower: The American Solar Energy Society (ASES) is is a national trade association promoting solar energy as a clean source of electricity, and provides a comprehensive resource for additional information. DOE's Office of Energy Efficiency and Renewable Energy is also a comprehensive resource for more information on renewable energy.

434

Wind Energy Potential in SE New Mexico  

NLE Websites -- All DOE Office Websites (Extended Search)

click to return to the Renewable Energy page click to return to the Renewable Energy page Return to Renewable Energy Page Wind Energy in Southeast New Mexico Several Ongoing and New Wind Power Projects are Contributing to Making Renewable Energy Sources an Important Economic and Environmental Mainstay of the Region As the accompanying map of New Mexico shows, the best wind power generation potential near WIPP is along the Delaware Mountain ridge line of the southern Guadalupe Mountains, about 50-60 miles southwest. The numeric grid values indicate wind potential, with a range from 1 (poor) to 7 (superb). Just inside Texas in the southern Guadalupe Mountains, the Delaware Mountain Wind Power Facility in Culbertson County, Texas currently generates over 30 MW, and could be expanded to a 250 MW station.

435

Okapi at TREC-2 SE Robertson  

Science Conference Proceedings (OSTI)

... the prevention of nuclear proliferation I had a set of "nuclear" words (reprocessing, plutonium, etc.), a set of "control" words (control, monitor ...

1998-09-24T23:59:59.000Z

436

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

Implementation of an agglomeration model into Ansys CFX 12.1 and CFD single phase cyclone sim- ulations A, Stability analysis of the tip vortices of a wind turbine, Wind Energy, 13, 705­715. 20 Jadoon A., Prahl., Dahlberg J.°A., Alfredsson P.H., 2010, Measurements of the flow upstream a rotating wind turbine model

Haviland, David

437

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

turbulent mixing, transport in single and multiphase systems as well as flows involving phase change behind model wind turbines: further evidence of wake meandering, Wind Energy, 11, 211-217. 37 Mellgren N, and especially fluid mechanics is the basis for almost all electricity generation, such as wind, hydro, nuclear

Haviland, David

438

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

Acceleration of Brittle Failure in Polyolefins and composite structures for wind turbine blades. September 27-reacting and reacting flows as well as single and multiphase flows, whereas the experimental research has access to most) research dealing with fluid mechanics dominated by effects such as capillarity, phase change, heat and mass

Haviland, David

439

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

Advisor: Dr. Stefan Wallin Davide Medici Thesis title: Wind turbine wakes - control and vortex shedding measurements in single-and two-phase adiabatic air-water turbulent flows in realistic bwr fuel assembly ge. 122­123. 51. Medici, D. & Alfredsson, P.H. 2004 Measurements on a wind turbine wake: 3D effects

Haviland, David

440

Pax Global: Compromise Agreement (2013-SE-1413)  

Energy.gov (U.S. Department of Energy (DOE))

DOE and Pax Global, Inc., entered into a Compromise Agreement to resolve a case involving the distribution in commerce of noncompliant freezers.

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

CNA: Compromise Agreement (2013-SE-1430)  

Energy.gov (U.S. Department of Energy (DOE))

DOE and CNA International, Inc., d/b/a MC Appliance Corp. entered into a Compromise Agreement to resolve a case involving the distribution in commerce of noncompliant freezers.

442

ET Industries: Order (2012-SE-2902)  

Energy.gov (U.S. Department of Energy (DOE))

DOE ordered ET Industries, Inc. to pay a $39,000 civil penalty after finding ET Industries had manufactured and distributed in commerce in the U.S. 974 units of basic model TH-1, a noncompliant showerhead.

443

GE Appliances: Order (2012-SE-1403)  

Energy.gov (U.S. Department of Energy (DOE))

DOE ordered GE Appliances, a Division of General Electric Company to pay a $63,000 civil penalty after finding GE had privately labeled and distributed in commerce in the U.S. the 4-cubic-foot capacity refrigerator basic model SMR04GAZCS, which includes models SMR04GAZACS and SMR04GAZBCS.

444

NPS-SE-10-003 POSTGRADUATE  

E-Print Network (OSTI)

the uncertainties of the coverage overlap and radar detection range, a fleet size of 35 should be anticipated given an UAV detection range of 20km and radar coverage overlap of 4 seconds. 15. NUMBER OF PAGES 407 14. A conservative fleet size estimate, given the uncertainties of the coverage overlap and radar detection range

445

Lutron Electronics: Order (2012-SE-3796)  

Energy.gov (U.S. Department of Energy (DOE))

DOE ordered Lutron Electronics Co., Inc. to pay a $82,478 civil penalty after finding Lutron Electronics had manufactured and distributed in commerce in the U.S. at least 79,000 units of various basic models of noncompliant Class A external power supplies.

446

Natural Resources Building 1111 Washington St SE  

E-Print Network (OSTI)

brings together all of the state's natural resource agencies and seven salmon recovery organizations-0917 STATE OF WASHINGTON (360) 902-3000 TTY: (360) 902-1996 Fax: (360) 902-3026 E-mail: Info@rco.wa.gov Web in Washington State, consistent with the state's Comprehensive Monitoring Strategy and Action Plan. The Forum

447

Midea: Penalty Notice Withdrawal (2010-SE-0110)  

Energy.gov (U.S. Department of Energy (DOE))

DOE withdrew its January 26, 2012 Notice of Proposed Civil Penalty, but retained the right to take further enforcement actions.

448

Neptun Light: Order (2012-SE-3504)  

Energy.gov (U.S. Department of Energy (DOE))

DOE ordered Neptun Light, Inc. to pay a $13,000 civil penalty after finding Neptun Light had failed to certify that certain models of medium base compact fluorescent lamps comply with the applicable energy conservation standards.

449

Golden Opportunity: Compromise Agreement (2013-SE-1418)  

Energy.gov (U.S. Department of Energy (DOE))

DOE and Golden Opportunity, Inc. entered into a Compromise Agreement to resolve a case involving the distribution in commerce of noncompliant freezers.

450

Precision: Compromise Agreement (2013-SE-1410)  

Energy.gov (U.S. Department of Energy (DOE))

DOE and Precision Trading Corp. entered into a Compromise Agreement to resolve a case involving the distribution in commerce of noncompliant freezers.

451

Summit Manufacturing: Case Closure (2010-SE-0303)  

Energy.gov (U.S. Department of Energy (DOE))

DOE closed this case against Summit Manufacturing, Inc. without civil penalty after Summit Manufacturing provided information that the non-compliant products were not sold in the United States.

452

Electrolux: Compliance Determination (2010-SE-0108)  

Energy.gov (U.S. Department of Energy (DOE))

After conducting testing of Electrolux's Frigidaire chest freezer model FFN09M5HWC, DOE determined that the model met the applicable energy conservation standard.

453

Okapi at TREC-2 SE Robertson  

Science Conference Proceedings (OSTI)

... to documents where the verbosity hypothesis does not apply ... London: Butterworths, 1981. ... Proceedings of the 15th International Conference on ...

454

Development of a computer model for polycrystalline thin-film CuInSe{sub 2} and CdTe solar cells; Annual subcontract report, 1 March 1992--28 February 1993  

DOE Green Energy (OSTI)

Solar cells operate by converting the radiation power from sun light into electrical power through photon absorption by semiconductor materials. The elemental and compound material systems widely used in photovoltaic applications can be produced in a variety of crystalline and non-crystalline forms. Although the crystalline group of materials have exhibited high conversion efficiencies, their production cost are substantially high. Several candidates in the poly- and micro-crystalline family of materials have recently gained much attention due to their potential for low cost manufacturability, stability, reliability and good performance. Among those materials, CuInSe{sub 2} and CdTe are considered to be the best choices for production of thin film solar cells because of the good optical properties and almost ideal band gap energies. Considerable progress was made with respect to cell performance and low cost manufacturing processes. Recently conversion efficiencies of 14.1 and 14.6% have been reported for CuInSe{sub 2} and CdTe based solar cells respectively. Even though the efficiencies of these cells continue to improve, they are not fully understood materials and there lies an uncertainty in their electrical properties and possible attainable performances. The best way to understand the details of current transport mechanisms and recombinations is to model the solar cells numerically. By numerical modeling, the processes which limit the cell performance can be sought and therefore, the most desirable designs for solar cells utilizing these materials as absorbers can be predicted. The problems with numerically modeling CuInSe{sub 2} and CdTe solar cells are that reported values of the pertinent material parameters vary over a wide range, and some quantities such as carrier concentration are not explicitly controlled.

Gray, J.L.; Schwartz, R.J.; Lee, Y.J. [Purdue Univ., West Lafayette, IN (United States)

1994-03-01T23:59:59.000Z

455

Effect of fluctuations on electron and phonon processes and thermodynamic parameters of Ag{sub 2}Te and Ag{sub 2}Se in the region of phase transition  

Science Conference Proceedings (OSTI)

Temperature dependences of electrical conductivity {sigma}, thermoelectric power {alpha}, results of differential thermal analysis {delta}T{sub y}, thermal conductivity {chi}, temperature conductivity {kappa}, and heat capacity C{sub p} were studied in Ag{sub 2}Te and Ag{sub 2}Se semiconductors in the region of the phase transition. Two extrema are observed in the temperature dependence {chi}(T): a maximum in the region of the {alpha}' {sup {yields}} {beta}' transition and a minimum in the region of the {beta}' {sup {yields}} {beta} transition; these extrema are caused by the similar dependence C{sub p}(T). It is shown that the {alpha} {sup {yields}} {alpha}' and {beta}' {sup {yields}} {beta} transitions are displacement transitions, while the {alpha}' {sup {yields}} {beta}' transition is of reconstruction type. It is established that the disorder parameter {eta} in silver chalcogenides is highly smeared in the region of the phase transition; therefore, disordering of phases at the point of the phase transition is incomplete: 73, 62, and 48% in Ag{sub 2}Te, Ag{sub 2}Se, and Ag{sub 2}S, respectively. The minimum volumes V{sub ph} for new phases are calculated; it is shown that the value of V{sub ph} in displacement transitions is larger than in the reconstruction-type transitions.

Aliev, S. A.; Aliev, F. F. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)], E-mail: farzali@physics.ab.az

2008-04-15T23:59:59.000Z

456

Effect of Mo Back Contact on Na Out-Diffusion and Device Performance of Mo/Cu(In,Ga)Se2/CdS/ZnO Solar Cells: Preprint  

DOE Green Energy (OSTI)

This conference paper describes the molybdenum thin films that were deposited on soda lime glass (SLG) substrates using direct-current planar magnetron sputtering, with a sputtering power density of 1.2 W/cm2. The working gas (Ar) pressure was varied from 0.6 to 16 mtorr to induce changes in the Mo films' morphology and microstructure. Thin films of Cu(In,Ga)Se2 (CIGS) were deposited on the Mo-coated glass using the 3-stage co-evaporation process. The morphology of both the Mo-coated SLG and the CIGS thin films grown on it was examined using high-resolution scanning electron microscopy. Na was depth profiled in the Mo and CIGS films by secondary ion mass spectrometry. The device performance was evaluated under standard conditions of 1000 W/m2 and 25 C. Optimum device performance is found for an intermediate Mo sputtering pressure.

Al-Thani, H. A.; Hasoon, F. S.; Young, M.; Asher, S.; Alleman, J. L.; Al-Jassim, M. M.; Williamson, D. L.

2002-05-01T23:59:59.000Z

457

Abstract Masaya volcano (560 m a.s.l.), Nicaragua, re-sumed its degassing activity in mid-1993 with the con-  

E-Print Network (OSTI)

) to characterise the dispersion of the gas emissions around the volcano, (2) to investigate the influence dispersion of the gas plume by the north-easterly trade winds over a 80­85° sector, which is equivalent). These observations suggest that the terrain topog- raphy strongly influences gas dispersion in the Masaya area

Mucci, Alfonso

458

LAC Regional Platform Workshop Insurance & Visas | Open Energy...  

Open Energy Info (EERE)

Kenya Kirguizistn Kosovo Kuwait Lesotho Liberia * Lybia Lebanon Madagascar Malaysia Malawi Mali Morocco Mauritania Moldavia Mongolia Mozambique Namibia Nepal Nicaragua...

459

CHILE, A FOOD POWER: THE IMPORTANCE OF THE ...  

Science Conference Proceedings (OSTI)

... well as 35 laboratories from Argentina, Peru, Brazil, Panamá, Nicaragua, Ecuador among others. GRAFICO N°1 RESULTADOS ...

2012-07-27T23:59:59.000Z

460

Newsletter Signup Form  

NLE Websites -- All DOE Office Websites (Extended Search)

EETD NEWSLETTER - MANAGE SUBSCRIPTIONS EETD NEWSLETTER - MANAGE SUBSCRIPTIONS (red fields are required) Manage subscriptions: Subscribe Unsubscribe Name E-Mail Affiliation Address Address (line 2) City State/Province Zip/Postal Code Country (please select a country) none Afghanistan Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia and Herzegowina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo, the Democratic Republic of the Cook Islands Costa Rica Cote d'Ivoire Croatia (Hrvatska) Cuba Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic East Timor Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands (Malvinas) Faroe Islands Fiji Finland France France, Metropolitan French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guam Guatemala Guinea Guinea-Bissau Guyana Haiti Heard and Mc Donald Islands Holy See (Vatican City State) Honduras Hong Kong Hungary Iceland India Indonesia Iran (Islamic Republic of) Iraq Ireland Israel Italy Jamaica Japan Jordan Kazakhstan Kenya Kiribati Korea, Democratic People's Republic of Korea, Republic of Kuwait Kyrgyzstan Lao People's Democratic Republic Latvia Lebanon Lesotho Liberia Libyan Arab Jamahiriya Liechtenstein Lithuania Luxembourg Macau Macedonia, The Former Yugoslav Republic of Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands Martinique Mauritania Mauritius Mayotte Mexico Micronesia, Federated States of Moldova, Republic of Monaco Mongolia Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands Netherlands Antilles New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Northern Mariana Islands Norway Oman Pakistan Palau Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Puerto Rico Qatar Reunion Romania Russian Federation Rwanda Saint Kitts and Nevis Saint LUCIA Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Seychelles Sierra Leone Singapore Slovakia (Slovak Republic) Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands Spain Sri Lanka St. Helena St. Pierre and Miquelon Sudan Suriname Svalbard and Jan Mayen Islands Swaziland Sweden Switzerland Syrian Arab Republic Taiwan, Province of China Tajikistan Tanzania, United Republic of Thailand Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States United States Minor Outlying Islands Uruguay Uzbekistan Vanuatu Venezuela Viet Nam Virgin Islands (British) Virgin Islands (U.S.) Wallis and Futuna Islands Western Sahara Yemen Yugoslavia Zambia Zimbabwe

Note: This page contains sample records for the topic "nicaragua se seychelles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Nonlinear Properties of (GeSe2)100-x(Sb2Se3)  

Science Conference Proceedings (OSTI)

A8: Microstructural Investigation of Nano-Calcium Phosphates Doped with Fluoride Ions .... D7: Surfactant Structure–property Relationship: Effect of Polypropylene ... E4: The Effect of Monobutyl Ether Ethylene Glycol on the Conductivity and ...

462

Development of a computer model for polycrystalline thin-film CuInSe{sub 2} and CdTe solar cells. Final subcontract report, 1 January 1991--31 December 1991  

DOE Green Energy (OSTI)

This report describes work to develop an accurate numerical model for CuInSe{sub 2} (CIS) and CdTe-based solar cells capable of running on a personal computer. Such a model will aid researchers in designing and analyzing CIS- and CdTe-based solar cells. ADEPT (A Device Emulation Pregrain and Tool) was used as the basis for this model. An additional objective of this research was to use the models developed to analyze the performance of existing and proposed CIS- and CdTe-based solar cells. The development of accurate numerical models for CIS- and CdTe-based solar cells required the compilation of cell performance data (for use in model verification) and the compilation of measurements of material parameters. The development of the numerical models involved implementing the various physical models appropriate to CIS and CdTe, as well as some common window. A version of the model capable of running on an IBM-comparable personal computer was developed (primary code development is on a SUN workstation). A user-friendly interface with pop-up menus is continuing to be developed for release with the IBM-compatible model.

Gray, J.L.; Schwartz, R.J.; Lee, Y.J. [Purdue Univ., Lafayette, IN (United States)

1992-09-01T23:59:59.000Z

463

Processing of CuInSe{sub 2}-based solar cells: Characterization of deposition processes in terms of chemical reaction analyses. Phase 2 Annual Report, 6 May 1996--5 May 1997  

DOE Green Energy (OSTI)

This report describes research performed by the University of Florida during Phase 2 of this subcontract. First, to study CIGS, researchers adapted a contactless, nondestructive technique previously developed for measuring photogenerated excess carrier lifetimes in SOI wafers. This dual-beam optical modulation (DBOM) technique was used to investigate the differences between three alternative methods of depositing CdS (conventional chemical-bath deposition [CBD], metal-organic chemical vapor deposition [MOCVD], and sputtering). Second, a critical assessment of the Cu-In-Se thermochemical and phase diagram data using standard CALPHAD procedures is being performed. The outcome of this research will produce useful information on equilibrium vapor compositions (required annealing ambients, Sex fluxes from effusion cells), phase diagrams (conditions for melt-assisted growth), chemical potentials (driving forces for diffusion and chemical reactions), and consistent solution models (extents of solid solutions and extending phase diagrams). Third, an integrated facility to fabricate CIS PV devices was established that includes migration-enhanced epitaxy (MEE) for deposition of CIS, a rapid thermal processing furnace for absorber film formation, sputtering of ZnO, CBD or MOCVD of CdS, metallization, and pattern definition.

Anderson, T.

1999-10-20T23:59:59.000Z

464

Research on high-efficiency, large-area CuInSe{sub 2}-based thin-film modules. Final subcontract report, 16 August 1993--30 June 1995  

DOE Green Energy (OSTI)

This final subcontract report, describing work to fabricate a large-area, stable, 12.5% (aperture)-efficient encapsulated CuInSe{sub 2} (CIS) module by scalable, low-cost techniques on inexpensive substrates. Demonstrated encapsulated module efficiencies (encapsulated 12.8%-efficient mini-module on 68.9cm{sup 2} and an NREL-verified 12.7%-efficient unencapsulated circuit on 69 CM{sup 2} with a prismatic cover) are the highest reported mini-module demonstrated (and verified by NREL). This is the first thin-film module of its size to exceed the 10% efficiency level. SSI also supplied NREL with a 1-kW array of large-area ({approximately}3890 CM{sup 2}) approximately 30-W modules. The NREL-verified performance of this array is a significant step toward meeting the efficiency target of the USDOE Five-Year Plan goals of 8%--10%-efficient commercial thin-film, flat-plate modules. Long-term outdoor stability of CIS and CIS-based absorbers was demonstrated by testing at NREL. Excellent stability was demonstrated for 6 years of outdoor exposure. The stability of the 1-kW Siemens CIS array, installed and tested at NREL, was also demonstrated for an exposure of about 1 year. The foundations have been laid to meet the thin-film milestones of the DOE Five-Year Plan. Outdoor testing has demonstrated excellent intrinsic module stability. Future plans include scaling these results to larger areas and emphasizing the reduction of variation methodology to lay the foundation for demonstrating the potential of CIS as a future commercial product.

Tarrant, D.E.; Gay, R.R. [Siemens Solar Industries, Camarillo, CA (United States)

1995-07-01T23:59:59.000Z

465

Local structure of Rb{sub 2}Li{sub 4}(SeO{sub 4}){sub 3}{center_dot}2H{sub 2}O by the modeling of X-ray diffuse scattering - from average-structure to microdomain model  

Science Conference Proceedings (OSTI)

Local structure of dirubidium tetralithium tris(selenate(VI)) dihydrate - Rb{sub 2}Li{sub 4}(SeO{sub 4}){sub 3}{center_dot} 2H{sub 2}O has been determined basing on the modeling of X-ray diffuse scattering. The origin of observed structured diffuse streaks is SeO{sub 4} tetrahedra switching between two alternative positions in two quasi-planar layers existing in each unit cell and formation of domains with specific SeO{sub 4} tetrahedra configuration locally fulfilling condition for C-centering in the 2a Multiplication-Sign 2b Multiplication-Sign c superstructure cell. The local structure solution is characterized by a uniform distribution of rather large domains (ca. thousand of unit cells) in two layers, but also monodomains can be taken into account. Inside a single domain SeO{sub 4} tetrahedra are ordered along ab-diagonal forming two-string ribbons. Inside the ribbons SeO{sub 4} and LiO{sub 4} tetrahedra share the oxygen corners, whereas ribbons are bound to each other by a net of hydrogen bonds and fastened by corner sharing SeO{sub 4} tetrahedra of the neighboring layers. - Graphical abstract: Experimental sections of the reciprocal space showing diffraction effects observed for RLSO. Bragg spots are visible on sections with integer indices (1 kl section - on the left), streaks - on sections with fractional ones (1.5 kl section - on the right). At the center: resulting local structure of the A package modeled as a microdomain: two-string ribbons of ordered oxygen-corners-sharing SeO{sub 4} and LiO{sub 4} terahedra extended along ab-diagonal are seen; ribbons are bound by hydrogen bonds (shown in pink); the multiplied 2a Multiplication-Sign 2b unit cell is shown. Highlights: Black-Right-Pointing-Pointer X-ray diffuse scattering in RLSO was registered and modeled. Black-Right-Pointing-Pointer The origin of diffuse streaks is SeO{sub 4} tetrahedra switching in two structure layers. Black-Right-Pointing-Pointer The local structure is characterized by a uniform distribution of microdomains. Black-Right-Pointing-Pointer Inside a single domain SeO{sub 4} tetrahedra are ordered along ab-diagonal forming ribbons. Black-Right-Pointing-Pointer The ribbons are bound to each other by a net of hydrogen bonds.

Komornicka, Dorota [Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okolna 2, 50-420 Wroclaw (Poland); Wolcyrz, Marek, E-mail: m.wolcyrz@int.pan.wroc.pl [Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okolna 2, 50-420 Wroclaw (Poland); Pietraszko, Adam [Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okolna 2, 50-420 Wroclaw (Poland)

2012-08-15T23:59:59.000Z

466

Stafford, K.M., S.E. Moore, P.J. Stabeno, D.V. Holliday, J.M. Napp, and D.K. Mellinger. 2010. Biophysical ocean observation in the southeastern Bering Sea. Geophys. Rev. Lett. 37: L02606 (doi:10.1029/2009GL040724). 4 pp.  

E-Print Network (OSTI)

Stafford, K.M., S.E. Moore, P.J. Stabeno, D.V. Holliday, J.M. Napp, and D.K. Mellinger. 2010 Kathleen M. Stafford1* , Sue E. Moore2 , Phyllis J. Stabeno3 , D.V. Holliday4 , Jeffrey M. Napp5 and David USA. * Corresponding author: stafford@apl.washington.edu #12;2 Abstract Integrated ocean observation

467

i~f~.~..!:@'i~jgI ;0"'~S'"e.~-  

E-Print Network (OSTI)

-rartl-mnd-iopo-iopl-mnd-hm-pr-ht-pr-hl-iop-ho-ihm-h-abdo-sopo-opo-cl Fig.4.Continued © 2011 The Authors

Sereno, Martin

468

Back and forth between rules and SE-models  

Science Conference Proceedings (OSTI)

Rules in logic programming encode information about mutual interdependencies between literals that is not captured by any of the commonly used semantics. This information becomes essential as soon as a program needs to be modified or further manipulated. ...

Martin Slota; João Leite

2011-05-01T23:59:59.000Z

469

Bioavailability of Cd, Zn and Se in two marine fish.  

E-Print Network (OSTI)

??xxi, 210 leaves : ill. ; 30 cm HKUST Call Number: Thesis BIOL 2007 Zhang It is valuable to study the bioavailability of trace metal… (more)

Zhang, Li

2007-01-01T23:59:59.000Z

470

Electrochemical power-producing cell. [Li/Se  

DOE Patents (OSTI)

An electrochemical power-producing cell including a molten lithium metal anode, a molten selenium metal cathode, a paste electrolyte separating the anode from the cathode, an anode current collector, and a single layer of niobium expanded metal formed in corrugated shape as cathode current collector is described. In addition, means are provided for sealing the anode and the cathode from loss of lithium and selenium, respectively, and an insulator is provided between the anode housing and the paste electrolyte disk.

Cairns, E.J.; Chilenskas, A.A.; Steunenberg, R.K.; Shimotake, H.

1972-05-30T23:59:59.000Z

471

Informationswirtschaft (B.Sc.) Modulhandbuch SoSe 2008  

E-Print Network (OSTI)

/forschung_2004/07/704 sfb583.shtml Vier Lehrstühle an Länderinitiative beteiligt Kraftwerke des 21. Jahrhunderts "Kraftwerke des 21. Jahrhun- derts" ist eine gemeinsame Forschungsinitiative der Länder Bayern und BadenKombinationarbeiten)werden sie zur Grundlastversorgung eingesetzt. GuD-Kraftwerke er- reichenmitetwa60Prozent die höchsten

Stein, Oliver

472

Tafelbild der Vorlesung im SoSe 2004 gehalten von  

E-Print Network (OSTI)

;Kapitel 10 ¨Ubungen > # The Newton Approximation set for kubic > # > newton3 := proc( x, y) > local z, m

Nagler, Jan

473

Central Moloney: Order (2013-SE-4702) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Moloney had manufactured and distributed noncompliant liquid-immersed distribution transformers in commerce in the U.S. -- 14 units of basic model 30300150 and and one unit of...

474

Department of Mechanics KTH, SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

of surfactant solution Effects of pressure as well as concentration of the surfactant on permeate flux concentration remains constant. 3.4.2. Effect of surfactant concentration Fig. 14 shows negligible influence enhanced ultrafiltration Gargi Ghosh, Prashant K. Bhattacharya Department of Chemical Engineering, Indian

Haviland, David