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1

XiAn Lv Jing Technology | Open Energy Information  

Open Energy Info (EERE)

XiAn Lv Jing Technology XiAn Lv Jing Technology Jump to: navigation, search Name XiAn Lv Jing Technology Place Xian, Shaanxi Province, China Sector Solar Product Xian-based solar integrated company. Coordinates 34.27301°, 108.928009° 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":34.27301,"lon":108.928009,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

2

MHK Projects/Norde lv | Open Energy Information  

Open Energy Info (EERE)

Norde lv Norde lv < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","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":57.6653,"lon":11.5878,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

3

Assessment of the LV-S2 & LV-S3 Stack Sampling Probe Locations for Compliance with ANSI/HPS N13.1-1999  

SciTech Connect (OSTI)

This document reports on a series of tests conducted to assess the proposed air sampling locations for the Hanford Tank Waste Treatment and Immobilization Plant (WTP) Group 1-2A exhaust stacks with respect to the applicable criteria regarding the placement of an air sampling probe. The LV-C2, LV-S2, and LV-S3 exhaust stacks were tested together as a group (Test Group 1-2A). This report only covers the results of LV-S2 and LV-S3; LV-C2 will be reported on separately. Federal regulations1 require that a sampling probe be located in the exhaust stack according to the criteria established by the American National Standards Institute/Health Physics Society (ANSI/HPS) N13.1-1999, Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stack and Ducts of Nuclear Facilities. 2 These criteria address the capability of the sampling probe to extract a sample that represents the effluent stream.

Glissmeyer, John A.; Antonio, Ernest J.; Flaherty, Julia E.; Amidan, Brett G.

2014-09-30T23:59:59.000Z

4

Terahertz-Emitting Silicon-Germanium Devices Ralph T. Troeger, Thomas N. Adam, Samit K. Ray, Pengcheng Lv, Ulrike Lehmann, and James  

E-Print Network [OSTI]

, Pengcheng Lv, Ulrike Lehmann, and James Kolodzey Department of Electrical and Computer Engineering

Kolodzey, James

5

DG Demonet Smart LV Grid (Smart Grid Project) | Open Energy Information  

Open Energy Info (EERE)

Demonet Smart LV Grid (Smart Grid Project) Demonet Smart LV Grid (Smart Grid Project) Jump to: navigation, search Project Name DG Demonet Smart LV Grid Country Austria Coordinates 47.516232°, 14.550072° 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":47.516232,"lon":14.550072,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

6

Design of active loops for magnetic field mitigation in MV/LV substation surroundings  

Science Journals Connector (OSTI)

Abstract This paper deals with the application and optimization of active loops for the mitigation of the magnetic field generated by complex sources, especially MV/LV substations. Various active-loop configurations are proposed, which are analyzed in several regions located close to a particular MV/LV substation, and the optimum geometry and location of the loops are obtained together with the optimum current (magnitude and phase) to be injected into the loops. All this is performed by means of a genetic algorithm in order to reduce the average magnetic field inside the target volume (inspection volume) to the minimum. The performance of the proposed active loops is compared with that obtained via other well-known mitigation technique, such as conductive/ferromagnetic passive shields. The main results are analyzed, and the differences, in terms of performance, between the two shielding techniques, and their proper application to MV/LV substations, are highlighted.

Juan Carlos del-Pino-Lpez; Luca Giaccone; Aldo Canova; Pedro Cruz-Romero

2015-01-01T23:59:59.000Z

7

Office of the General Counsel Building 460 P.O. Box 5000  

E-Print Network [OSTI]

Office of the General Counsel Building 460 P.O. Box 5000 Upton. NY 11973-5000 Phone 516 344-8629 EN of Energy WY;'W.bnl.gov Memo Date: September 30, 1999 To: George Malosh From: Gregory Fes~ Subject: DOE Te: As above stated #12;DEPARTMENT OF ENERGY TECHNOLOGY PARTNERSHIP 0!\\-1BUDS INTTIATIVE C01\\rf

8

Pre-print of Chapter to appear in L.V. Shavinina (Ed). The International Handbook of Giftedness. Springer Science  

E-Print Network [OSTI]

- 1 - Pre-print of Chapter to appear in L.V. Shavinina (Ed). The International Handbook, languages, social studies etc. Yet reality does not function in this discrete manner. Although critical in-depth and ground-breaking work in optics, physics, astronomy, and theology. His book entitled

Bardsley, John

9

Distributed voltage control strategy for LV networks with inverter-interfaced generators  

Science Journals Connector (OSTI)

Abstract Low voltage distribution networks are characterized by an ever growing diffusion of single and three phase distributed generators whose unregulated operation may deplete the power quality levels, in particular as regard voltage profiles and unbalances. This issue is at present under discussion by several national and international standardization bodies and the general trend is to require, for the new connections of generators to medium and low voltage grids, their participation to the reactive power network management. In this paper a novel strategy proposes to control the network voltage unbalance suitably for coordinating single and three-phase inverter interfaced embedded generators, concurrently with a local volt/var regulation action as foreseen by the new grid connection requirements. Simulations conducted on case study network representing a typical Italian 4-wire LV distribution system under different load/generation conditions, demonstrate that the coordinated action of single-phase and three-phase inverters may considerably reduce the degree of unbalance thus improving the network power quality levels.

R. Caldon; M. Coppo; R. Turri

2014-01-01T23:59:59.000Z

10

125Te NMR chemical-shift trends in PbTeGeTe and PbTeSnTe alloys  

SciTech Connect (OSTI)

Complex tellurides, such as doped PbTe, GeTe, and their alloys, are among the best thermoelectric materials. Knowledge of the change in 125Te NMR chemical shift due to bonding to dopant or solute atoms is useful for determination of phase composition, peak assignment, and analysis of local bonding. We have measured the 125Te NMR chemical shifts in PbTe-based alloys, Pb1?xGexTe and Pb1?xSnxTe, which have a rocksalt-like structure, and analyzed their trends. For low x, several peaks are resolved in the 22-kHz MAS 125Te NMR spectra. A simple linear trend in chemical shifts with the number of Pb neighbors is observed. No evidence of a proposed ferroelectric displacement of Ge atoms in a cubic PbTe matrix is detected at low Ge concentrations. The observed chemical shift trends are compared with the results of DFT calculations, which confirm the linear dependence on the composition of the first-neighbor shell. The data enable determination of the composition of various phases in multiphase telluride materials. They also provide estimates of the 125Te chemical shifts of GeTe and SnTe (+970 and +400150 ppm, respectively, from PbTe), which are otherwise difficult to access due to Knight shifts of many hundreds of ppm in neat GeTe and SnTe.

Njegic, Bosiljka [Ames Laboratory; Levin, Evgenii M. [Ames Laboratory; Schmidt-Rohr, Klaus [Ames Laboratory

2013-10-08T23:59:59.000Z

11

Synthesis, characterization and performance of Cd1xInxTe compound for solar cell applications  

E-Print Network [OSTI]

), Tebbin, P.O. Box 87 Helwan, Cairo 11412, Egypt b Department of Physics, University of Central Florida­vis­NIR spectrophotometer and band gap energy of 1.37 eV for Cd0.6In0.4Te was obtained. The best photovoltaic conversion efficiency of 1.89% was obtained for the Cd0.6In0.4Te sample with a short circuit current density (Jsc) of 15

Chow, Lee

12

P.O. Box 45339 San Francisco, CA  

E-Print Network [OSTI]

UCSF P.O. Box 45339 San Francisco, CA 94145-0339 UCSF P.O. Box 45339 San Francisco, CA 94145-0339 UCSF P.O. Box 45339 San Francisco, CA 94145-0339 UCSF P.O. Box 45339 San Francisco, CA 94145-0339 UCSF P.O. Box 45339 San Francisco, CA 94145-0339 UCSF P.O. Box 45339 San Francisco, CA 94145-0339 UCSF P

Yamamoto, Keith

13

OP-PO-0010-001.PDF  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

OP-PO-0010-001.doc Student Caretaker Date: 20000830 1. Introduction: To increase the accessibility of photon beams, especially for non-CAMD staff, LSUCAMD has initiated the...

14

Site Considerations for Repowering With Advanced Circulating Pressurized Fluidized Bed Combustion (APFBC) from the L.V. Sutton Station Concept Assessment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tonnemacher et al., Site Considerations for Repowering With APFBC from the L.V. Sutton Station Concept Assessment Tonnemacher et al., Site Considerations for Repowering With APFBC from the L.V. Sutton Station Concept Assessment paper 970562 Page 1 of 36 Site Considerations for Repowering with Advanced Circulating Pressurized Fluidized Bed Combustion (APFBC) from the L.V. Sutton Station Concept Assessment Gary C. Tonnemacher, P.E., and David C. Killen, P.E. Carolina Power & Light Company Raleigh, North Carolina Richard E. Weinstein, P.E., Harvey N. Goldstein, P.E., and Jay S. White Parsons Power Group Inc. Reading, Pennsylvania Robert W. Travers, P.E. U.S. Department of Energy Office of Fossil Energy / Germantown, Maryland electronic mail addresses/phone no. electronic mail addresses/phone no. Tonnemacher{ Gary.Tonnemacher@CPLC.COM 919 / 546-6091 Goldstein { Harvey_N_Goldstein@Parsons.COM

15

Electronic Properties of LiFePO4 and Li doped LiFePO4  

SciTech Connect (OSTI)

The potential use of different iron phosphates as cathodematerials in lithium-ion batteries has recently been investigated.1 Oneof the promising candidates is LiFePO4. This compound has severaladvantages in comparison to the state-of-the-art cathode material incommercial rechargeable lithium batteries. Firstly, it has a hightheoretical capacity (170 mAh/g). Secondly, it occurs as mineraltriphylite in nature and is inexpensive, thermally stable, non-toxic andnon-hygroscopic. However, its low electronic conductivity (~;10-9 S/cm)results in low power capability. There has been intense worldwideresearch activity to find methods to increase the electronic conductivityof LiFePO4, including supervalent ion doping,2 introducingnon-carbonaceous network conduction3 and carbon coating, and theoptimization of the carbon coating on LiFePO4 particle surfaces.4Recently, the Li doped LiFePO4 (Li1+xFe1-xPO4) synthesized at ARL hasyield electronic conductivity increase up to 106.5 We studied electronicstructure of LiFePO4 and Li doped LiFePO4 by synchrotron based soft X-rayemission (XES) and X-ray absorption (XAS) spectroscopies. XAS probes theunoccupied partial density of states, while XES the occupied partialdensity of states. By combining XAS and XES measurements, we obtainedinformation on band gap and orbital character of both LiFePO4 and Lidoped LiFePO4. The occupied and unoccupied oxygen partial density ofstates (DOS) of LiFePO4 and 5 percent Li doped LiFePO4 are presented inFig. 1. Our experimental results clearly indicate that LiFePO4 has wideband gap (~; 4 eV). This value is much larger than what is predicted byDFT calculation. For 5 percent Li doped LiFePO4, a new doping state wascreated closer to the Fermi level, imparting p-type conductivity,consistent with thermopower measurement. Such observation substantiatesthe suggestion that high electronic conductivity in Li1.05Fe0.95 PO4 isdue to available number of charge carriers in the material. Furthermore,Hall effect measurement on Li doped sample confirmed presence of freecharge carriers, which are responsible for the observed electronicconductivity increase in Li doped LiFePO4. There is no evidence that Fe3+valence is created by doping with excessive Li+ in Li1.05Fe0.95PO4, asshown by Fe-edge XAS. (Fig.2) Instead, charge-carrier holes resideprimarily in unoccupied O 2p states, which compensate for the chargedeficiency from Li+ substitution for Fe2+. The increased conductivity inLi1.05Fe0.95PO4 is attributed to the new charge carriers (doped holes)and the strong electron correlation between O 2p and Fe 3dstates.

Zhuang, G.V.; Allen, J.L.; Ross, P.N.; Guo, J.-H.; Jow, T.R.

2005-06-28T23:59:59.000Z

16

Magnetoluminescence of CdTe/MnTe/CdMgTe heterostructures with ultrathin MnTe layers  

SciTech Connect (OSTI)

CdTe/MnTe/CdMgTe quantum-well structures with one or two monolayers of MnTe inserted at CdTe/CdMgTe interfaces were fabricated. The spectra of the excitonic luminescence from CdTe quantum wells and their variation with temperature indicate that introduction of ultrathin MnTe layers improves the interface quality. The effect of a magnetic field in the Faraday configuration on the spectral position of the exciton-emission peaks indicates that frustration of magnetic moments in one-monolayer MnTe insertions is weaker than in two-monolayer insertions. The effect of a magnetic field on the exciton localization can be explained in terms of the exciton wave-function shrinkage and obstruction of the photoexcited charge-carrier motion in the quantum well.

Agekyan, V. F., E-mail: vfag@rambler.ru [St. Petersburg State University, Fock Institute of Physics (Russian Federation); Holz, P. O. [Polish Academy of Sciences, Institute of Physics (Poland); Karczewski, G. [Linkoeping University (Sweden); Katz, V. N. [St. Petersburg State University, Fock Institute of Physics (Russian Federation); Moskalenko, E. S. [Russian Academy of Sciences, Ioffe Physical Technical Institute (Russian Federation); Serov, A. Yu.; Filosofov, N. G. [St. Petersburg State University, Fock Institute of Physics (Russian Federation)

2011-10-15T23:59:59.000Z

17

Sciences Po Grenoble working paper n.13  

E-Print Network [OSTI]

, highlighting the huge enterprise of formatting and framing the `process of `economization' (Caliskan & Callon1 Sciences Po Grenoble working paper n.13 Economic Circuits in Madagascar `Agencing of transactions leads to the emergence of what will call an economic circuit. We define an economic circuit

Paris-Sud XI, Université de

18

Electronic Properties of LiFePO4 and Li doped LiFePO4  

SciTech Connect (OSTI)

LiFePO{sub 4} has several potential advantages in comparison to the transition metal oxide cathode materials used in commercial lithium-ion batteries. However, its low intrinsic electronic conductivity ({approx} 10{sup -9} S/cm) is problematic. We report here a study by soft x-ray absorption/emission spectroscopy of the electronic properties of undoped LiFePO{sub 4} and Li-doped LiFePO{sub 4} in which Li{sup +} ions are substituted for Fe{sup 2+} ions in an attempt to increase the intrinsic electronic conductivity. The conductivities of the Li{sub 1+x}Fe{sub 1-x}PO{sub 4} samples were, however, essentially unchanged from that of the undoped LiFePO{sub 4}. Nonetheless, evidence for changing the electronic properties of LiFePO{sub 4} by doping with excess Li+ was observed by the XAS/XES spectroscopy. New pre-edge features the O-1s XAS spectrum of Li{sub 1.05}Fe{sub 0.95}PO4 is a direct indication that the charge compensation for substitution of Fe{sup 2+} by Li{sup +} resides in the unoccupied O-2p orbitals. A charge transfer (CT) excitation was also observed in the doped material implying that the unoccupied O-2p orbitals created by doping are strongly hybridized with unoccupied Fe-3d orbitals of neighboring sites. However, the strong covalent bonding within the (PO{sub 4}){sup 3-} anions and the large separation of the Fe cations means that the charge created by doping is not delocalized in the manner of electrons or holes in a semiconductor.

Allen, J.L.; Zhuang, G.V.; Ross, P.N.; Guo, J.-H.; Jow, T.R.

2006-05-31T23:59:59.000Z

19

CdTe/CdZnTe pixellated radiation detector.  

E-Print Network [OSTI]

??The work in this thesis is focused on the study of CdTe/CdZnTe pixellated detectors. During this research, three main aspects have been covered in the (more)

Mohd Zain, Rasif

2015-01-01T23:59:59.000Z

20

Weak topological insulators in PbTe/SnTe superlattices  

E-Print Network [OSTI]

It is desirable to realize topological phases in artificial structures by engineering electronic band structures. In this paper we investigate (PbTe)[subscript m](SnTe)[subscript 2n?m] superlattices along the [001] direction ...

Yang, Gang

Note: This page contains sample records for the topic "te po lv" 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

Te INCLUSIONS IN CdTe GROWN FROM A SLOWLY COOLED Te SOLUTION AND BY THE TRAVELLING SOLVENT METHOD  

E-Print Network [OSTI]

135 Te INCLUSIONS IN CdTe GROWN FROM A SLOWLY COOLED Te SOLUTION AND BY THE TRAVELLING SOLVENT. Abstract. 2014 CdTe crystals have been grown from a slowly cooled Te solution and with the travelling. Introduction. - CdTe crystals for nuclear radia- tion detectors are usually grown from a slowly cooled solution

Paris-Sud XI, Université de

22

Oak Ridge Operations PO. Box E  

Office of Legacy Management (LM)

PO. Box E PO. Box E Oak Ridge,Tennessee 37830 E. 6. DeLaney, DRAP, NE-24 COMPLETION OF DECONTAMINATION OF GILMAN HALL, UNIVERSITY OF CALIFORNIA AT BERKELEY Attached is a copy of the final report covering the remedial actions and associated radiological survey work on Gilman Hall. Your attention is called to the last paragraph of the attached letter from Mr. Davis (SAN) which states: "Completion of this work has fulfilled OR's obligation under the Formerly Utilized Sites Remedial Action Program (FuSRAP). No further involvement by OR/FUSRAP in this matter is required." CE-53:EHH Attachment: As Stated E. L. Keller, Director Technical Services Division _I ." ....I__ - . . _. ._ . ..- - --..-l-.l_ U.S. DEPARTMENT OF ENERGY memmcmhm SET. Francisco Operations Office (ESQA)

23

Synthesis and luminescence of CePO4:Tb/LaPO4 core/sheath nanowires  

SciTech Connect (OSTI)

CePO4:Tb/LaPO4 core/sheath architectured nanowires have been successful synthesized by a facile aqueous chemical method mediated by original CePO4:Tb aggregation seeds. The seed crystals serve as both a luminescence center and nucleation site for epitaxial growth. The seed nanocrystals have irregular sphere-like shape with an average size of around 6.8 nm and a narrow size distribution. When the seed crystals are coated with LaPO4, the resulting CePO4:Tb/LaPO4 core/sheath architectured nanowires have mean diameters of about 7.6 nm and lengths up to 331 nm. Both the photo- and X-ray luminescence demonstrate that the LaPO4 coating increases the luminescence efficiency. These core-sheath structured nanowires may find potential applications in solid state lighting, medical imaging and radiation detection.

Li, Yuebin; Sun, Zhong; Ma, Lun; Zhang, Xing; Yao, Mingzhen; Joly, Alan G.; Liu, Zuli; Chen, Wei

2010-03-26T23:59:59.000Z

24

2010 shanghai ExPo EDiTion soCiology graDUaTE Daisy  

E-Print Network [OSTI]

life for all. #12;1 06 13 ConTEnTs 02 BUilDing BriDgEs To China: Professor John hearn writes about Goodman's research into German adventurers in China, including architect Walther Frey who designed some at the Shanghai expo 16 whaT nExT for China: Chinese Ambassador Zhang Junsai and historian John Wong write about

Du, Jie

25

1 WJL WJL 3/14/00 revised PC dimensions, requiring LV panels to go to space in a second rack REQUIRED SIGNATURES, DATE  

E-Print Network [OSTI]

1 WJL WJL 3/14/00 revised PC dimensions, requiring LV panels to go to space in a second rack INCHES ALL DIMENSIONS ARE TOFp DRAWING NUMBER REV. DATE DATE W.J. Llope 1/26/00 DRWN BY TOFp Rack NUMBER REV. DATECOGNIZANT ENG PRODUCTION APP TOFp/pVPD Rack1 Contents 5U Breaker Panel 15U SM255 Mount

Llope, William J.

26

Physical Oceanography Distributed Active Archive Center (PO.DAAC) |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Physical Oceanography Distributed Active Archive Center (PO.DAAC) Physical Oceanography Distributed Active Archive Center (PO.DAAC) Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov » Communities » Ocean » Data Physical Oceanography Distributed Active Archive Center (PO.DAAC) Dataset Summary Description PO.DAAC is an element of the Earth Observing System Data Information System (EOSDIS). PO.DAAC's primary responsibility is to provide distribution and archive support for NASA's physical oceanography missions such as TOPEX/Poseidon and SeaWinds on QuikSCAT. However, PO.DAAC additionally collaborates with other institutes to acquire complementary data products and value-added services. Tags {Oceans,"ocean dynamics","Earth observing system",EOS,navigation,"information systems",NASA,JPL,"Jet Propulsion Laboratory"}

27

Luminescence Enhancement of CdTe Nanostructures in LaF3:Ce/CdTe...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Enhancement of CdTe Nanostructures in LaF3:CeCdTe Nanocomposites. Luminescence Enhancement of CdTe Nanostructures in LaF3:CeCdTe Nanocomposites. Abstract: Radiation detection...

28

TE Connectivity Finds Answers in Tomography  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

TE Connectivity Finds Answers in Tomography TE Connectivity Finds Answers in Tomography Print Thursday, 22 August 2013 10:50 TE Connectivity is a world leader in connectivity-the...

29

PoGOLite: Neutron Background Studies for High Latitudes  

E-Print Network [OSTI]

PoGOLite: Neutron Background Studies for High Latitudes Maria Fernanda Muñoz Salinas SH2006. The measurements showed a neutron background ten times higher than expected. Because of this, new simulations of the PoGOLite flight which will take place in the summer of 2012. The neutron background was simulated

Haviland, David

30

IR spectroscopy of lattice vibrations and comparative analysis of the ZnTe/CdTe quantum-dot superlattices on the GaAs substrate and with the ZnTe and CdTe buffer layers  

SciTech Connect (OSTI)

A comparative analysis of multiperiod ZnTe/CdTe superlattices with the CdTe quantum dots grown by molecular beam epitaxy on the GaAs substrate with the ZnTe and CdTe buffer layers is carried out. The elastic-stress-induced shifts of eigenfrequencies of the modes of the CdTe- and ZnTe-like vibrations of materials forming similar superlattices but grown on different buffer ZnTe and CdTe layers are compared. The conditions of formation of quantum dots in the ZnTe/CdTe superlattices on the ZnTe and CdTe buffer layers differ radically.

Kozyrev, S. P. [Russian Academy of Sciences, Lebedev Institute of Physics (Russian Federation)], E-mail: skozyrev@sci.lebedev.ru

2009-07-15T23:59:59.000Z

31

Oak Ridge Site Specific Advisory Board * P.O...  

Broader source: Energy.gov (indexed) [DOE]

Board * P.O. Box 2001, EM-91, Oak Ridge, TN 37831 Phone: 865-241-4583, 865-241-4584, 1-800-382-6938 * Fax: 865-574-3521 * Internet: www.oakridge.doe.govemssab Many Voices...

32

PoGOLite -a high sensitivity balloon-borne  

E-Print Network [OSTI]

high-energy emission is assumed to be from pair production-induced cascades. The geometry of the system-rays is a powerful diagnostic of source emission mechanisms · PoGOLite is optimised for point sources (e.g. Crab magnetised neutron stars (e.g. Hecurles X-1) PoGOLite is optimised for point-like sources covers 25-80 ke

Haviland, David

33

Upconversion Luminescence of CdTe Nanoparticles. | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of CdTe Nanoparticles. Upconversion Luminescence of CdTe Nanoparticles. Abstract: Efficient upconversion luninescence is observed from CdTe nanoparticles in solution and...

34

Diffusion of Te vacancy and interstitials of Te, Cl, O, S, P and Sb in CdTe: A density functional theory study  

E-Print Network [OSTI]

Diffusion of Te vacancy and interstitials of Te, Cl, O, S, P and Sb in CdTe: A density functional profiles in CdTe of native, Te adatom and vacancy, and anionic non-native interstitial adatoms P, Sb, O, S B.V. All rights reserved. 1. Introduction Cadmium telluride (CdTe) based thin films have emerged

Khare, Sanjay V.

35

Comparison of Small Polaron Migration and Phase Separation in Olivine LiMnPO? and LiFePO? using Hybrid Density Functional Theory  

E-Print Network [OSTI]

Using hybrid density functional theory based on the Heyd-Scuseria-Ernzerhof (HSE06) functional, we compared polaron migration and phase separation in olivine LiMnPO? to LiFePO?. The barriers for free hole and electron ...

Ong, Shyue Ping

36

RAPID DETERMINATION OF {sup 210} PO IN WATER SAMPLES  

SciTech Connect (OSTI)

A new rapid method for the determination of {sup 210}Po in water samples has been developed at the Savannah River National Laboratory (SRNL) that can be used for emergency response or routine water analyses. If a radiological dispersive device (RDD) event or a radiological attack associated with drinking water supplies occurs, there will be an urgent need for rapid analyses of water samples, including drinking water, ground water and other water effluents. Current analytical methods for the assay of {sup 210}Po in water samples have typically involved spontaneous auto-deposition of {sup 210}Po onto silver or other metal disks followed by counting by alpha spectrometry. The auto-deposition times range from 90 minutes to 24 hours or more, at times with yields that may be less than desirable. If sample interferences are present, decreased yields and degraded alpha spectrums can occur due to unpredictable thickening in the deposited layer. Separation methods have focused on the use of Sr Resin?, often in combination with 210Pb analysis. A new rapid method for {sup 210}Po in water samples has been developed at the Savannah River National Laboratory (SRNL) that utilizes a rapid calcium phosphate co-precipitation method, separation using DGA Resin? (N,N,N?,N? tetraoctyldiglycolamide extractant-coated resin, Eichrom Technologies or Triskem-International), followed by rapid microprecipitation of {sup 210}Po using bismuth phosphate for counting by alpha spectrometry. This new method can be performed quickly with excellent removal of interferences, high chemical yields and very good alpha peak resolution, eliminating any potential problems with the alpha source preparation for emergency or routine samples. A rapid sequential separation method to separate {sup 210} Po and actinide isotopes was also developed. This new approach, rapid separation with DGA Resin plus microprecipitation for alpha source preparation, is a significant advance in radiochemistry for the rapid determination of {sup 210}Po.

Maxwell, S.

2013-05-22T23:59:59.000Z

37

Origin of the charge gap in LaMnPO  

Science Journals Connector (OSTI)

We present high temperature inelastic neutron scattering and magnetic susceptibility measurements of the antiferromagnetic insulator LaMnPO that are consistent with the presence of two-dimensional magnetic correlations up to a temperature Tmax?700K?TN=375 K, the Nel temperature. Optical transmission measurements show the T=300 K direct charge gap ?=1 eV has decreased only marginally by 500 K and suggest it decreases by only 10% at Tmax. Density functional theory and dynamical mean-field theory calculations reproduce a direct charge gap in paramagnetic LaMnPO only when a strong Hund's coupling JH=0.9 eV is included, as well as on-site Hubbard U=8 eV. Our results show that LaMnPO is a Mott-Hund's insulator, in which the charge gap is rather insensitive to antiferromagnetic exchange coupling.

D. E. McNally; J. W. Simonson; K. W. Post; Z. P. Yin; M. Pezzoli; G. J. Smith; V. Leyva; C. Marques; L. DeBeer-Schmitt; A. I. Kolesnikov; Y. Zhao; J. W. Lynn; D. N. Basov; G. Kotliar; M. C. Aronson

2014-11-18T23:59:59.000Z

38

SF 6432-PO Standard Terms and Conditions for Purchase Orders  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

PO (04-95) PO (04-95) SECTION II STANDARD TERMS AND CONDITIONS FOR PURCHASE ORDERS INDEX OF CLAUSES AWARD BASIS (Applicable only to the Request for Quotation). Unless otherwise specified in Section I of the RFQ, award will be on the basis of low net cost to Sandia. Low net cost includes price, transportation charges, and payment discount terms. ______________________________________________________________________________________________________________________________ The terms and conditions stated for this Purchase Order, referred herein as "contract," are the only ones governing this transaction and cannot be changed or terminated orally. No terms and conditions appearing on any form originated by the Contractor shall be applicable. ______________________________________________________________________________________________________________________________

39

X-ray standing wave study of CdTe/MnTe/CdTe(001) heterointerfaces J. C. Boulliard,a)  

E-Print Network [OSTI]

features of the first stages of growth of ultrathin pseudomorphic MnTe 001 strained layers buried in CdTe on CdTe 001 substrates. Experiments with 004 and 113 reflecting planes show evidence of the presenceTe layers grown in CdTe 001 by molecular beam epitaxy. The results will be compared to high resolution

Boyer, Edmond

40

PoS(2008LHC)053 First physics with ATLAS  

E-Print Network [OSTI]

PoS(2008LHC)053 First physics with ATLAS Dirk ZERWAS, on behalf of the ATLAS collaboration LAL, Orsay E-mail: zerwas@lal.in2p3.fr The expected performance of ATLAS for first physics is summarized with ATLAS Dirk ZERWAS, on behalf of the ATLAS collaboration 1. Introduction The ATLAS experiment is one

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "te po lv" 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

Effects of Laser Energy and Wavelength on the Analysis of LiFePO4...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Laser Energy and Wavelength on the Analysis of LiFePO4 Using Laser Assisted Atom Probe Tomography. Effects of Laser Energy and Wavelength on the Analysis of LiFePO4 Using Laser...

42

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion Battery Cathode. LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion...

43

Co-synthesis of LiFePO4 and Carbon Nanotubes  

E-Print Network [OSTI]

of LiFePO 4 and carbon nanotubes potentially bypassessynthesis of LiFePO 4 and Carbon Nanotubes James Wilcox* ,that multi-walled carbon nanotubes (MWCNTs, Figure 1) and

Wilcox, James; Doeff, Marca M.

2006-01-01T23:59:59.000Z

44

A synthesis of LiFePO 4 starting from FePO 4 under reducing atmosphere  

Science Journals Connector (OSTI)

A fast and easy way to produce LiFePO 4 starting from FePO 4 used as iron and phosphorus source is proposed. 5% hydrogen is employed as a reducing agent and various compounds containing lithium as lithiation agents. The selected lithiation agents included: LiCl CH 3 COOLi LiOH Li 2 S LiH and Li 2 CO 3 . Solid state synthesis is used for the LiFePO 4 preparation and the so obtained materials are structurally characterized by XRD. The materials are used to fabricate composite electrode and their specific capacity is evaluated by low rate galvanostatic charge/discharge cycles (C/10 rate). Among the various lithium salts the acetate give rise to the LiFePO 4 with the best electrochemical performance. The morphology of this material is further investigated by SEM microscopy and the specific capacity is evaluated as a function of the discharge rate and the cycle number.

2014-01-01T23:59:59.000Z

45

Observation de super-rseaux CdTe-HgTe par microscopie lectronique en transmission  

E-Print Network [OSTI]

-conducteurs II-VI a été beaucoup plus tardive [2]. Dans cette dernière famille, le système CdTe- HgTe présente l'avantage d'un accord de maille quasi parfait entre les deux composés (a = 0,648 nm pour CdTe contre a = 0 JET MOL?CULAIRE. - Les super- réseaux CdTe-HgTe ont été épitaxiés sur un substrat CdTe d

Paris-Sud XI, Université de

46

Frequently Asked Questions about Polonium 210 What is Polonium 210 (Po-210)?  

E-Print Network [OSTI]

is a radioactive material that occurs in nature at very low levels. Po-210 results from the natural radioactive Po-210 is a radioactive material that occurs in nature at very low levels. It is found naturally effects. Your skin or a piece of paper is enough to stop the radiation emitted by Po-210. What are common

47

PO Box 6050, Irvine, CA 92616-6050 www.extension.uci.edu Accounting Courses  

E-Print Network [OSTI]

PO Box 6050, Irvine, CA 92616-6050 www.extension.uci.edu Accounting Courses (Not a Certificate Program) #12;PO Box 6050, Irvine, CA 92616-6050 www.extension.uci.edu LIST OF COURSES Course # Accounting://learn.uci.edu for more information on how the online courses work. Revised 9/27/12 #12;PO Box 6050, Irvine, CA 92616

Barrett, Jeffrey A.

48

TE Connectivity Finds Answers in Tomography  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

TE Connectivity Finds Answers in TE Connectivity Finds Answers in Tomography TE Connectivity Finds Answers in Tomography Print Thursday, 22 August 2013 10:50 TE Connectivity is a world leader in connectivity-the $13 billion global company designs and manufactures more than 500,000 different electronic connectivity products for the automotive, energy, industrial, broadband communications, consumer device, healthcare, aerospace, and defense industries. TE Connectivity has a long-standing commitment to innovation and engineering excellence. Their products help address challenges arising from companies' need for energy efficiency, always-on communications, and ever-increasing productivity. Recently, a team led by TE's senior manager of materials development, Dr. Jerzy Gazda (at left), has been investigating how ALS tomography capabilities can help the company develop more efficient connectors.

49

Si, CdTe and CdZnTe radiation detectors for imaging applications.  

E-Print Network [OSTI]

??The structure and operation of CdTe, CdZnTe and Si pixel detectors based on crystalline semiconductors, bump bonding and CMOS technology and developed mainly at Oy (more)

Schulman, Tom

2006-01-01T23:59:59.000Z

50

Recycling of CdTe photovoltaic waste  

DOE Patents [OSTI]

A method for extracting and reclaiming metals from scrap CdTe photovoltaic cells and manufacturing waste by leaching the waste with a leaching solution comprising nitric acid and water, skimming any plastic material from the top of the leaching solution, separating the glass substrate from the liquid leachate and electrolyzing the leachate to separate Cd from Te, wherein the Te is deposits onto a cathode while the Cd remains in solution.

Goozner, Robert E. (Charlotte, NC); Long, Mark O. (Charlotte, NC); Drinkard, Jr., William F. (Charlotte, NC)

1999-01-01T23:59:59.000Z

51

Recycling ZnTe, CdTe, and Other Compound Semiconductors by Ambipolar Electrolysis  

E-Print Network [OSTI]

The electrochemical behavior of ZnTe and CdTe compound semiconductors dissolved in molten ZnCl[subscript 2] and equimolar CdCl[subscript 2]KCl, respectively, was examined. In these melts dissolved Te is present as the ...

Osswald, Sebastian

52

Semitransparent ultrathin CdTe solar cells Semitransparent ultrathin CdTe solar cells and durabilityand durability  

E-Print Network [OSTI]

Semitransparent ultrathin CdTe solar cells Semitransparent ultrathin CdTe solar cells core technology is built around · sputter deposition · CdS/CdTe cell structure · Extensive IPTe cellsultrathin CdTe cells X26 stateoftheart compared with other CdTe deposition: [X26 technology has been

Rollins, Andrew M.

53

Response of Cds/CdTe Devices to Te Exposure of Back Contact: Preprint  

SciTech Connect (OSTI)

Theoretical predictions of thin-film CdS/CdTe photovoltaic (PV) devices have suggested performance may be improved by reducing recombination due to Te-vacancy (VTe) or Te-interstitial (Tei) defects. Although formation of these intrinsic defects is likely influenced by CdTe deposition parameters, it also may be coupled to formation of beneficial cadmium vacancy (VCd) defects. If this is true, reducing potential effects of VTe or Tei may be difficult without also reducing the density of VCd. In contrast, post-deposition processes can sometimes afford a greater degree of defect control. Here we explore a post-deposition process that appears to influence the Te-related defects in polycrystalline CdTe. Specifically, we have exposed the CdTe surface to Te prior to ZnTe:Cu/Ti contact-interface formation with the goal of reducing VTe but without significantly reducing VCd. Initial results show that when this modified contact is used on a CdCl2-treated CdS/CdTe device, significantly poorer device performance results. This suggests two things: First, the amount of free-Te available during contact formation (either from chemical etching or CuTe or ZnTe deposition) may be a more important parameter to device performance than previously appreciated. Second, if processes have been used to reduce the effect of VTe (e.g., oxygen and chlorine additions to the CdTe), adding even a small amount of Te may produce detrimental defects.

Gessert, T. A.; Burst, J. M.; Ma, J.; Wei, S. H.; Kuciauskas, D.; Barnes, T. M.; Duenow, J. N.; Young, M. R.; Rance, W. L.; Li, J. V.; Dippo, P.

2012-06-01T23:59:59.000Z

54

High performance Zintl phase TE materials with embedded nanoparticles...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

performance Zintl phase TE materials with embedded nanoparticles High performance Zintl phase TE materials with embedded nanoparticles Performance of zintl phase thermoelectric...

55

CdSxTe1-x Alloying in CdS/CdTe Solar Cells  

SciTech Connect (OSTI)

A CdS{sub x}Te{sub 1-x} layer forms by interdiffusion of CdS and CdTe during the fabrication of thin film CdTe photovoltaic (PV) devices. The CdS{sub x}Te{sub 1-x} layer is thought to be important because it relieves strain at the CdS/CdTe interface that would otherwise exist due to the 10% lattice mismatch between these two materials. Our previous work has indicated that the electrical junction is located in this interdiffused CdS{sub x}Te{sub 1-x} region. Further understanding, however, is essential to predict the role of this CdS{sub x}Te{sub 1-x} layer in the operation of CdS/CdTe devices. In this study, CdS{sub x}Te{sub 1-x} alloy films were deposited by radio-frequency magnetron sputtering and coevaporation from CdTe and CdS sources. Both radio-frequency-magnetron-sputtered and coevaporated CdS{sub x}Te{sub 1-x} films of lower S content (x < 0.3) have a cubic zincblende (ZB) structure akin to CdTe, whereas those of higher S content have a hexagonal wurtzite (WZ) structure like that of CdS. Films become less preferentially oriented as a result of a CdCl{sub 2} heat treatment at {approx}400 C for 5 min. Films sputtered in a 1% O{sub 2}/Ar ambient are amorphous as deposited, but show CdTe ZB, CdS WZ, and CdTe oxide phases after a CdCl{sub 2} heat treatment. Films sputtered in O{sub 2} partial pressure have a much wider bandgap than expected. This may be explained by nanocrystalline size effects seen previously for sputtered oxygenated CdS (CdS:O) films.

Duenow, J. N.; Dhere, R. G.; Moutinho, H. R.; To, B.; Pankow, J. W.; Kuciauskas, D.; Gessert, T. A.

2011-01-01T23:59:59.000Z

56

Energy loss rate of a charged particle in HgTe/(HgTe, CdTe) quantum wells  

SciTech Connect (OSTI)

The energy loss rate (ELR) of a charged particle in a HgTe/(HgTe, CdTe) quantum well is investigated. We consider scattering of a charged particle by the bulk insulating states in this type of topological insulator. It is found that the ELR characteristics due to the intraband excitation have a linear energy dependence while those due to interband excitation depend on the energy exponentially. An interesting quantitative result is that for a large range of the incident energy, the mean inelastic scattering rate is around a few terahertz.

Chen, Qinjun; Sin Ang, Yee [School of Physics, University of Wollongong, New South Wales 2522 (Australia)] [School of Physics, University of Wollongong, New South Wales 2522 (Australia); Wang, Xiaolin [Institute for Superconducting and Electronic Materials, University of Wollongong, New South Wales 2522 (Australia)] [Institute for Superconducting and Electronic Materials, University of Wollongong, New South Wales 2522 (Australia); Lewis, R. A.; Zhang, Chao [School of Physics, University of Wollongong, New South Wales 2522 (Australia) [School of Physics, University of Wollongong, New South Wales 2522 (Australia); Institute for Superconducting and Electronic Materials, University of Wollongong, New South Wales 2522 (Australia)

2013-11-04T23:59:59.000Z

57

Recycling of CdTe photovoltaic waste  

DOE Patents [OSTI]

A method for extracting and reclaiming metals from scrap CdTe photovoltaic cells and manufacturing waste by leaching the metals in dilute nitric acid, leaching the waste with a leaching solution comprising nitric acid and water, skimming any plastic material from the top of the leaching solution, separating the glass substrate from the liquid leachate, adding a calcium containing base to the leachate to precipitate Cd and Te, separating the precipitated Cd and Te from the leachate, and recovering the calcium-containing base.

Goozner, Robert E. (Charlotte, NC); Long, Mark O. (Charlotte, NC); Drinkard, Jr., William F. (Charlotte, NC)

1999-04-27T23:59:59.000Z

58

Infrared spectroscopy of lattice vibrations in ZnTe/CdTe superlattices with quantum dots on the GaAs substrate with the ZnTe buffer layer  

SciTech Connect (OSTI)

The results of the analysis of the infrared lattice reflectance spectra of multiperiod ZnTe/CdTe superlattices with CdTe quantum dots are reported. The samples are grown by molecular beam epitaxy on the GaAs substrate with the ZnTe buffer layer. Due to the large number of periods of the superlattices, it is possible to observe CdTe-like vibration modes in the quantum dots, i.e., the dislocation-free stressed islands formed during the growth due to relaxation of elastic stresses between the ZnTe and CdTe layers are markedly different in their lattice parameters. From the frequency shifts of the CdTe- and ZnTe-like vibration modes with respect to the corresponding modes in the unstressed materials, it is possible to estimate the level of elastic stresses.

Kozyrev, S. P. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)], E-mail: skozyrev@sci.lebedev.ru

2009-03-15T23:59:59.000Z

59

{sup 210}Po and {sup 210}Pb intake by the Portuguese population: The contribution of seafood in the dietary intake of {sup 210}Po and {sup 210}Pb  

SciTech Connect (OSTI)

Through analysis of {sup 210}Po and {sup 210}Pb in the diet, the average ingestion rate for the Portuguese population is estimated at 1.2 and 0.47 Bq d{sup -1} per capita for {sup 210}Po and {sup 210}Pb, respectively. Detailed analysis of foods indicate that seafood alone contributes up to 70% of the {sup 210}Po ingestion rate, whereas cerals, vegetables, and meat altogether contribute 79% of the {sup 210}Pb ingestion rate. Consumption of seafood, both in terms of quantities (kg d{sup -1} per person) and preferential consumption of certain marine species, is the cause of the relatively high intake of {sup 210}Po and high {sup 210}Po:{sup 210}Pb ratio in the diet in comparison with other countries. Other {sup 210}Po and {sup 210}Pb sources, namely inhalation of surface air and cigarette smoke, contribute only a small percentage of the adsorption of these radionuclides in the blood. Estimated total body burdens of {sup 210}Po and {sup 210}Pb in adult men, 70 Bq, are 3.5 times higher than estimates for humans living in normal radioactivity regions and consuming a reference diet. Average whole body effective doses for the adult from the Portuguese population are estimated at about 85 {mu}Sv y{sup -1} from {sup 210}Po and 170 {mu}Sv y{sup -1} from {sup 210}Pb adsorbed with the diet. Effective dose from {sup 210}Po in the diet may vary from 25 {mu}Sv y{sup -1} in an heavy consumer of sardines, to 1,000 {mu}Sv y{sup -1} in an hypothetical heavy consumer of molluscs. 46 refs., 2 figs., 4 tabs.

Carvalho, F.P. [Instituto Nacional de Engenharia e Tecnolgia Industrial, Savavem (Portugal)

1995-10-01T23:59:59.000Z

60

Formation and optical properties of CdTe/ZnTe nanostructures with different CdTe thicknesses grown on Si (100) substrates  

SciTech Connect (OSTI)

Atomic force microscopy (AFM) and photoluminescence (PL) measurements were carried out to investigate the formation and the optical properties of CdTe/ZnTe nanostructures with various CdTe thicknesses grown on Si (100) substrates by using molecular beam epitaxy and atomic layer epitaxy. AFM images showed that uniform CdTe/ZnTe quantum dots with a CdTe layer thickness of 2.5 ML (monolayer) were formed on Si (100) substrates. The excitonic peaks corresponding to transitions from the ground electronic subband to the ground heavy-hole band in the CdTe/ZnTe nanostructures shifted to a lower energy with increasing thickness of the CdTe layer. The activation energies of the carriers confined in the CdTe/ZnTe nanostructures grown on Si (100) substrates were obtained from the temperature-dependent PL spectra. The present observations can help improve understanding of the formation and the optical properties in CdTe/ZnTe nanostructures with different CdTe thicknesses grown on Si (100) substrates.

Lee, H. S.; Park, H. L.; Lee, I.; Kim, T. W. [Department of Physics, Yonsei University, Seoul 120-749 (Korea, Republic of); Advanced Semiconductor Research Center, Division of Electronics and Computer Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791 (Korea, Republic of)

2007-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

E-Print Network 3.0 - aes po vyidnoshennyu Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

solutions of the 3D NavierStokes equations for compressible Summary: Jiang Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China......

62

Growth and optical properties of CdTe quantum dots in ZnTe nanowires  

SciTech Connect (OSTI)

We report on the formation of optically active CdTe quantum dots in ZnTe nanowires. The CdTe/ZnTe nanostructures have been grown by a gold nanocatalyst assisted molecular beam epitaxy in a vapor-liquid solid growth process. The presence of CdTe insertions in ZnTe nanowire results in the appearance of a strong photoluminescence band in the 2.0 eV-2.25 eV energy range. Spatially resolved photoluminescence measurements reveal that this broad emission consists of several sharp lines with the spectral width of about 2 meV. The large degree of linear polarization of these individual emission lines confirms their nanowire origin, whereas the zero-dimensional confinement is proved by photon correlation spectroscopy.

Wojnar, Piotr; Janik, Elzbieta; Baczewski, Lech T.; Kret, Slawomir; Karczewski, G.; Wojtowicz, Tomasz [Institute of Physics, Polish Academy of Sciences, Al Lotnikow 32/46, 02-668 Warsaw (Poland); Goryca, Mateusz; Kazimierczuk, Tomasz; Kossacki, Piotr [Institute of Experimental Physics, Faculty of Physics, University of Warsaw, ul Hoza 69, 00-681 Warsaw (Poland)

2011-09-12T23:59:59.000Z

63

Charge transfer in liquid semiconductors: The K-Te system  

Science Journals Connector (OSTI)

The neutron diffraction patterns of molten KxTe1-x alloys for x=0.12 and x-0.50 demonstrate the persistence of covalently bonded tellurium in the liquid. In the case of liquid K0.12Te0.88, the measured structure is domianted by the Te-Te contribution, and is remarkably similar to that of pure liquid tellurium. The equiatomic alloy K0.50Te0.50 is shown to contain mostly Te pairs which are identified with Zintl ions, Te22-. The presence of these ions explains the semiconducting behavior of these alloys deduced from recent electrical transport measurements.

J. Fortner, Marie-Louise Saboungi, and J. E. Enderby

1992-08-31T23:59:59.000Z

64

Phonon blocking by two dimensional electron gas in polar CdTe/PbTe heterojunctions  

SciTech Connect (OSTI)

Narrow-gap lead telluride crystal is an important thermoelectric and mid-infrared material in which phonon functionality is a critical issue to be explored. In this Letter, efficient phonon blockage by forming a polar CdTe/PbTe heterojunction is explicitly observed by Raman scattering. The unique phonon screening effect can be interpreted by recent discovery of high-density two dimensional electrons at the polar CdTe/PbTe(111) interface which paves a way for design and fabrication of thermoelectric devices.

Zhang, Bingpo; Cai, Chunfeng; Zhu, He; Wu, Feifei; Ye, Zhenyu; Chen, Yongyue; Li, Ruifeng; Kong, Weiguang; Wu, Huizhen, E-mail: hzwu@zju.edu.cn [Department of Physics and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

2014-04-21T23:59:59.000Z

65

ZnTe: Gibbs free energy  

Science Journals Connector (OSTI)

This document is part of Volume 44 Semiconductors, Subvolume B New Data and Updates for II-VI Compounds of Landolt-Brnstein Group III Condensed Matter. It contains data on ZnTe (zinc telluride), Element...

J. Gutowski; K. Sebald; T. Voss

2009-01-01T23:59:59.000Z

66

Facultad de Ciencias Departamento de Fsica Te  

E-Print Network [OSTI]

Facultad de Ciencias Departamento de F??�sica Te ?? orica Jet production in charged current deep Ciencias F??�sicas'' by M ?? onica Luisa V ?? azquez Acosta Director : Juan Terr ?? on Cuadrado 16/12/2002 #12; #12; Facultad de Ciencias Departamento de F??�sica Te ?? orica Producci ?? on de chorros hadr ?? onicos en

67

GaTe semiconductor for radiation detection  

DOE Patents [OSTI]

GaTe semiconductor is used as a room-temperature radiation detector. GaTe has useful properties for radiation detectors: ideal bandgap, favorable mobilities, low melting point (no evaporation), non-hygroscopic nature, and availability of high-purity starting materials. The detector can be used, e.g., for detection of illicit nuclear weapons and radiological dispersed devices at ports of entry, in cities, and off shore and for determination of medical isotopes present in a patient.

Payne, Stephen A. (Castro Valley, CA); Burger, Arnold (Nashville, TN); Mandal, Krishna C. (Ashland, MA)

2009-06-23T23:59:59.000Z

68

Au/PO43-/TiO2 and PO43-/Au/TiO2 catalysts for CO oxidation: effect of synthesis details on catalytic performance  

SciTech Connect (OSTI)

Supported gold catalysts are active for CO oxidation, but the high-temperature deactivation is a shortcoming that may constrain their applications. Herein, we attempted to address this problem by using phosphate-doped Au/TiO{sub 2} synthesized via two routes. In route I, Au/PO{sub 4}{sup 3-}/TiO{sub 2} catalysts were prepared by treating TiO{sub 2} (Degussa P25) with diluted H{sub 3}PO{sub 4}, followed by loading gold via deposition-precipitation. In route II, PO{sub 4}{sup 3-}/Au/TiO{sub 2} catalysts were prepared by treating H{sub 2}-reduced Au/TiO{sub 2} with diluted H{sub 3}PO{sub 4}. These catalysts were systematically pretreated at 200 or 500 C before reaction testing. The overall CO conversion on 200 C-pretreated Au/PO43-/TiO2 or PO43-/Au/TiO2 was always lower than that on 200 C-pretreated Au/TiO2. However, the advantage of the phosphate addition became apparent after thermal treatment at a higher temperature. Both Au/PO43-/TiO2 and PO43-/Au/TiO2 pretreated at 500 C retained significant activities at room temperature, whereas 500 C-pretreated Au/TiO2 lost its activity. Control experiments and catalyst characterization were performed to investigate the impact of synthesis details on catalytic performance.

Ma, Zhen [ORNL; Overbury, Steven {Steve} H [ORNL; Dai, Sheng [ORNL

2007-01-01T23:59:59.000Z

69

CdTe AND CdTe : Hg ALLOYS CRYSTAL GROWTH USING STOICHIOMETRIC AND OFF-STOICHIOMETRIC  

E-Print Network [OSTI]

123 CdTe AND CdTe : Hg ALLOYS CRYSTAL GROWTH USING STOICHIOMETRIC AND OFF-STOICHIOMETRIC ZONE.-Briand, 92190 Meudon/Bellevue, France Résumé. 2014 En vue de la croissance de cristaux de CdTe de haute cristaux semi-isolants Cd0, 9Hg0, 1Te. Abstract. 2014 Some aspects of the thermodynamic state of CdTe

Paris-Sud XI, Université de

70

Recycling of LiFePO4 Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8-11, 2011 8-11, 2011 Linda Gaines Center for Transportation Research Argonne National Laboratory Recycling of LiFePO 4 Batteries 7th International Symposium on Inorganic Phosphate Materials Phosphate Materials for Energy Storage We don't want to trade one crisis for another!  Battery material shortages are unlikely - We demonstrated that lithium demand can be met - Recycling mitigates potential scarcity  Life-cycle analysis checks for unforeseen impacts  We need to find something to do with the used materials - Safe - Economical 2 Battery materials could get used multiple times Initial Use Automotive power Secondary Use Utility storage Residential storage Power at remote location Refurbishment Rejuvenate (change electrolyte) Switch out bad module

71

PO*WW*ER mobile treatment unit process hazards analysis  

SciTech Connect (OSTI)

The objective of this report is to demonstrate that a thorough assessment of the risks associated with the operation of the Rust Geotech patented PO*WW*ER mobile treatment unit (MTU) has been performed and documented. The MTU was developed to treat aqueous mixed wastes at the US Department of Energy (DOE) Albuquerque Operations Office sites. The MTU uses evaporation to separate organics and water from radionuclides and solids, and catalytic oxidation to convert the hazardous into byproducts. This process hazards analysis evaluated a number of accident scenarios not directly related to the operation of the MTU, such as natural phenomena damage and mishandling of chemical containers. Worst case accident scenarios were further evaluated to determine the risk potential to the MTU and to workers, the public, and the environment. The overall risk to any group from operation of the MTU was determined to be very low; the MTU is classified as a Radiological Facility with low hazards.

Richardson, R.B.

1996-06-01T23:59:59.000Z

72

Magnetic phase diagram of magnetoelectric LiMnPO4  

SciTech Connect (OSTI)

The nature of the spin-flop (SF) transition in the magnetoelectric quasi-2D Heisenberg system LiMnPO4 is studied in fields applied along the a axis. A refinement of the magnetic structure using neutron diffraction data in the SF phase reveals that the spins reorient from being parallel to the a axis to be nearly along the c axis at magnetic fields between 4 and 4.7 T, depending on temperature. The low-field antiferromagnetic phase boundary is shown to join the spin-flop line tangentially at the so-called bicritical point, where there is a suppression of the ordering temperature. At the bicritical field, we observe an increased intensity of the Lorentz broadened elastic scattering at magnetic Bragg peaks above TN as compared to zero field and 10 T, without an increase in peak width. This suggests an increased density of fluctuations at the bicritical field as compared to zero field.

Toft-Petersen, Rasmus; Andersen, Niels H.; Li, Haifeng; Li, Jiying; Tian, Wei; Budko, Serguei L.; Jensen, Thomas B.S.; Niedermayer, Christof; Laver, Mark; Zaharko, Oksana; Lynn, Jeffrey W.; Vaknin, David

2012-06-14T23:59:59.000Z

73

Theory of Ferroelectric Phase Transition in KH2PO4 Type Crystals. I  

Science Journals Connector (OSTI)

......isotope effect on the transition temperature in KH2PO4...and a theory of the phase transition is developed under the...interactions between ions and protons and the...of the Ferroelectric Phase Transition in KH2PO4 -Role of......

Masaharu Tokunaga; Takeo Matsubara

1966-04-01T23:59:59.000Z

74

GoPoMoSA: A Goal-Oriented Process Modeling and Simulation Advisor  

E-Print Network [OSTI]

and improvement. This paper presents GoPoMoSA (Goal-oriented Process Modeling and Simulation Advisor), a semi-automatedGoPoMoSA: A Goal-Oriented Process Modeling and Simulation Advisor Xu Bai and LiGuo Huang Dept and Simulation Advisor that semi-automatically discovers suitable Software Process Modeling and Simula- tion

Egyed, Alexander

75

PoGO : The Polarised Gamma-ray Observer S. Larssona  

E-Print Network [OSTI]

. Recently, the detection of high linear polarisation, (80±20)%, in a gamma ray burst ob- served, this observation will have far reaching implications for models of gamma- ray bursts. Many of the X-ray and gamma-ray1 PoGO : The Polarised Gamma-ray Observer S. Larssona and M. Pearceb (for the PoGO Collaboration

Haviland, David

76

High-Rate Cathodes Based on Li3V2(PO4)3 Nanobelts Prepared via...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cathodes Based on Li3V2(PO4)3 Nanobelts Prepared via Surfactant-Assisted Fabrication. Abstract: In this work, we synthesized monoclinic Li3V2(PO4)3 nanobelts via a single-step,...

77

Nano-Structured Li3V2(PO4)3 /Carbon Composite for High Rate Lithium...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nano-Structured Li3V2(PO4)3 Carbon Composite for High Rate Lithium Ion Batteries. Nano-Structured Li3V2(PO4)3 Carbon Composite for High Rate Lithium Ion Batteries. Abstract:...

78

Page 366 Courses: Political Science (POLS) Sonoma State University 2014-2015 Catalog poLS 311 Modern poLitiCAL tHougHt: MACHiAVeLLi to oBAMA (4)  

E-Print Network [OSTI]

Page 366 Courses: Political Science (POLS) Sonoma State University 2014-2015 Catalog poLS 311 Modern poLitiCAL tHougHt: MACHiAVeLLi to oBAMA (4) Examination of the major writings from Machiavelli AMeriCAn poLitiCAL tHougHt (4) An examination of the development of American political ideas

Ravikumar, B.

79

LiFePO4 batteries with enhanced lithium-ion-diffusion ability due to graphene addition  

Science Journals Connector (OSTI)

In this study, graphene was added to LiFePO4 via a hydrothermal method to improve the lithium-ion-diffusion ability of LiFePO4. The influence of graphene addition on LiFePO4 was studied by X-ray diffraction (XRD)...

Van Hiep Nguyen; Hal-Bon Gu

2014-10-01T23:59:59.000Z

80

Polymorphism and thermochemistry of MgAlPO4O, a product of lazulite breakdown at high temperature  

Science Journals Connector (OSTI)

...Vergasova et al., 2000). In the MgO-Al2O3-P2O5-H2O system, besides lazulite, trolleite and the various polymorphs of angelite Mg2PO4OH (Brunet et al., 1998), the compound MgAlPO4O is a ternary compound stable under metamorphic conditions. MgAl-PO4O...

Peter Schmid-Beurmann; Fabrice Brunet; Volker Kahlenberg; Edgar Dachs

Note: This page contains sample records for the topic "te po lv" 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

Bright green-emitting, energy transfer and quantum cutting of Ba3Ln(PO4)3: Tb3+ (Ln = La, Gd) under VUV-UV excitation  

Science Journals Connector (OSTI)

Tb3+ doped Ba3Gd(PO4)3 and Ba3La(PO4)3 phosphors were synthesized using the traditional high temperature...

Hou, Dejian; Liang, Hongbin; Xie, Mubiao; Ding, Xuemei; Zhong, Jiuping; Su, Qiang; Tao, Ye; Huang, Yan; Gao, Zhenhua

2011-01-01T23:59:59.000Z

82

Average resonance capture study of Te124  

Science Journals Connector (OSTI)

An average resonance capture study of Te124 was carried out by bombarding samples of Te123 with 2- and 24-keV neutron beams. The complete set of 0+, 1+, 2+ states disclosed by the experiment is consistent with the data of Robinson, Hamilton, and Snelling, demonstrating that there are no undetected states of these spins (especially 0+ states) below about 2500 keV. In particular, proposed 0+ levels at 1156 and 1290 keV are ruled out. This impacts various attempted interpretations in terms of intruder states, U(5), and O(6) symmetries.

R. F. Casten; J.-Y. Zhang; B.-C. Liao

1991-07-01T23:59:59.000Z

83

Two New Adamite-Type Phases, CO2(OH)PO4 and Zn2(OH)PO4: Structure-Directing Effect of Organic Additives  

Science Journals Connector (OSTI)

The hydrothermal syntheses, X-ray single crystal structures, and certain properties of cobalt hydroxyphosphate, Co2(OH)PO4, and zinc hydroxyphosphate, Zn2(OH)PO4, are described. Both materials are isomorphous with the adamite-type M2 (OH)XO4 structure, and consist of a condensed vertex- and edge-sharing network of MO5, distorted M O6(M = Co, Zn), and PO4 subunits. Both snythetic procedures required the presence of organic reagents which are not incorporated into the crystalline reaction products. Crystal data: Co2(OH)PO4, Mr = 229.84, orthorhombic, space group Pnnm (No. 58), a = 8.042(3) , b = 8.369(2) , c = 5.940(2) , V = 399.80 3, Z = 4, R = 2.40%, and Rw = 2.71% (589 observed reflections with I > 3 ?(I)). Zn2(OH)PO4, Mr = 242.74, orthorhombic, space group Pnnm (No. 58), a = 8.103(2), , b = 8.3292(9) , c = 5.9659(8) , V = 402.65 , Z = 4, R = 3.58%, and Rw = 3.90% (708 data with I > 3?(I)).

William T.A. Harrison; J.T. Vaughey; Laurie L. Dussack; Allan J. Jacobson; Theresa E. Martin; Galen D. Stucky

1995-01-01T23:59:59.000Z

84

CoNvoLvULACeAe oF SoNorA, MeXiCo. i. COnVOlVUlUS, CRESSA, DICHOnDRA, EVOlVUlUS, IpOMOEA,  

E-Print Network [OSTI]

), coastal salt scrub and mangroves (1), and mixed conifer forest (1). Nearly 10 percent of the Sonoran-Sonora Desert Museum P.O. Box 210036, Tucson, Arizona 85721 2021 N. Kinney Road, Tucson, Arizona 85743, U vegetation types: tropical deciduous forest (44), oak woodland (34), Sonoran desert (33), foothills

Sanderson, Mike

85

THE DEFECT STRUCTURE OF CdTe (*) F. A. KRGER  

E-Print Network [OSTI]

THE DEFECT STRUCTURE OF CdTe (*) F. A. KR?GER David Packard Professor of Electrical Engineering haute résistivité. Abstract. 2014 Evidence concerning the defect structure of CdTe is reviewed

Paris-Sud XI, Université de

86

PRESENT LIMITATIONS OF CdTe DETECTORS IN NUCLEAR MEDICINE  

E-Print Network [OSTI]

365 PRESENT LIMITATIONS OF CdTe DETECTORS IN NUCLEAR MEDICINE R. ALLEMAND, P. BOUTEILLER, M. LAVAL quality criteria, it is necessary to compare Cd-Te detectors results (or estimated characteristics) with other methods (i. e. 8cintillation cameras) in order to know the effective interest of Cd-Te in nuclear

Boyer, Edmond

87

Hybrid functional calculations of a Te antisite in bulk CdTe.  

E-Print Network [OSTI]

?? The detection of gamma-rays is an important issue in a cast array ofindustries. CdTe is a semiconductor used for gamma-ray detectors whichcan operate at (more)

rdal, Kristinn Bjrgvin

2013-01-01T23:59:59.000Z

88

Excited states of acceptors in CdTe and ZnTe  

Science Journals Connector (OSTI)

Higher excited states of acceptors in CdTe and ZnTe are obtained by using the Baldereschi and Lipari spherical model including the cubic correction and the central-cell effect. This is done by solving the coupled radial equations by the finite-element method with Arnoldi's algorithm, which gives several (?20) low-lying states simultaneously. Our procedure allows one to determine very accurately the host band-structure parameters. In the case of CdTe we obtain the Luttinger parameters ?1 = 5.30, ?2 = 1.62, ?3 = 2.10 and the dielectric constant ?0 = 9.3. For ZnTe we obtain ?1 = 3.80, ?2 = 0.86, ?3 = 1.32 and ?0 = 9.4.

M. Said; M.A. Kanehisa

1990-01-01T23:59:59.000Z

89

The PeTroleum InsTITuTe Annual report 2009 The PeTroleum InsTITuTe  

E-Print Network [OSTI]

The PeTroleum InsTITuTe Annual report 2009 The PeTroleum InsTITuTe Annual report - 2009 online version #12;The PeTroleum InsTITuTe Annual report 2009 #12;The PeTroleum InsTITuTe Annual report 2009 overvIew Annual Report 2009 THE PETROLEUM INSTITUTE Office of the President 4 OFFICE OF THE PRESIDENT DR

90

Influence of CdTe thickness on structural and electrical properties of CdTe/CdS solar cells  

E-Print Network [OSTI]

Influence of CdTe thickness on structural and electrical properties of CdTe/CdS solar cells A a b s t r a c ta r t i c l e i n f o Available online xxxx Keywords: Solar cells CdCl2 CdTe Thin absorbers Due to its high scalability and low production cost, CdTe solar cells have shown a very strong

Romeo, Alessandro

91

Typesetting Posters withTypesetting Posters with LaTeXLaTeX  

E-Print Network [OSTI]

Typesetting Posters withTypesetting Posters with LaTeXLaTeX:: A Practical GuideA Practical Guide?What is the Problem? ·· Posters are used to present technicalPosters are used to present technical material at some conferencesmaterial at some conferences ­­ In some cases these posters may be very largeIn some cases these posters

Stephenson, Ben

92

Mechanism of terahertz photoconductivity in semimetallic HgTe/CdHgTe quantum wells  

SciTech Connect (OSTI)

Terahertz photoconductivity in magnetic fields in semimetallic HgTe/CdHgTe quantum wells has been studied. The main contribution to photoconductivity comes from a signal that appears as a result of electron-gas heating. It is shown that, with the cyclotron resonance conditions satisfied, the photoconductivity signal is composed of cyclotron-resonance and bolometric components. However, in this case too, the bolometric contribution predominates.

Vasilyev, Yu. B., E-mail: yu.vasilyev@mail.ioffe.ru [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Mikhailov, N. N. [Russian Academy of Sciences, Rzhanov Institute of Semiconductor Physics, Siberian Branch (Russian Federation); Gouider, F. [Institut fuer Angewandte Physik (Germany); Vasilyeva, G. Yu. [St. Petersburg State Polytechnic University (Russian Federation); Nachtwei, G. [Institut fuer Angewandte Physik (Germany)

2012-05-15T23:59:59.000Z

93

Oak Ridge Site Specific Advisory Board * P.O. Box 2001, EM-91...  

Broader source: Energy.gov (indexed) [DOE]

April 12, 2012 Susan Cange Acting Manager for Environmental Management DOE-Oak Ridge Office P.O. Box 2001, EM-90 Oak Ridge, TN 37831 Dear Ms. Cange: Recommendation 209:...

94

Oak Ridge Site Specific Advisory Board * P.O. Box 2001, EM-91...  

Office of Environmental Management (EM)

October 16, 2012 Susan Cange Deputy Manager for Environmental Management DOE-Oak Ridge Office P.O. Box 2001, EM-90 Oak Ridge, TN 37831 Dear Ms. Cange: Recommendation 211 :...

95

Magentic Moment of the +-Resonance via p po Crystal Ball, TAPS collaborations  

E-Print Network [OSTI]

Magentic Moment of the +-Resonance via p po Crystal Ball, TAPS collaborations Introduction Experiment Results Conclusions PhD theses of: B. Boillat, Basel E. Downie, Glasgow S. Schumann, Mainz B

Krusche, Bernd

96

Co-synthesis of LiFePO4 and Carbon Nanotubes  

E-Print Network [OSTI]

as low as 0.1% have been reported for nanotubes in epoxy. 8of LiFePO 4 and carbon nanotubes potentially bypassesthat multi-walled carbon nanotubes (MWCNTs, Figure 1) and

Wilcox, James; Doeff, Marca M.

2006-01-01T23:59:59.000Z

97

Enhancing electrochemical performance of LiFePO4 by in situ reducing flexible graphene  

Science Journals Connector (OSTI)

Well-dispersed graphene materials reduced by Ac under hydrothermal condition...4 battery materials, which was synthesized at surface of graphene sheets. The as-prepared LiFePO4/graphene composites were characteri...

Lianhong Zhang; Hongyu Liang

2013-10-01T23:59:59.000Z

98

COMPARISON OF CSS-CdTe AND PVD-CdTe WITH DIFFERENT ACTIVATION PROCESSES , G. Khrypunov2,4  

E-Print Network [OSTI]

University, Leicestershire, LE11 3TU, UK ABSTRACT: CdTe polycrystalline thin film solar cells have a strong AM1.5 illumination. Amongst several attractive features high chemical stability of CdTe and a simple simplification has been done by substituting the CdCl2 step by treating CdTe films in an atmosphere containing

Romeo, Alessandro

99

THE PERFORMANCE OF THIN FILM SOLAR CELLS EMPLOYING PHOTOVOLTAIC Cu22014x Te-CdTe HETEROJUNCTIONS (1)  

E-Print Network [OSTI]

195 THE PERFORMANCE OF THIN FILM SOLAR CELLS EMPLOYING PHOTOVOLTAIC Cu22014x Te This paper is a short status report on the continuing development of Cu22014xTe-CdTe thin film solar cells Company has had a conti- nuous effort on thin film solar cells for the past four and a half years

Paris-Sud XI, Université de

100

First-principles study of the electronic and structural properties of (CdTe)n/(ZnTe)n superlattices  

Science Journals Connector (OSTI)

Abstract We present the results of a first-principles study of the electronic and structural properties of binary CdTe and ZnTe compounds and their (CdTe)n/(ZnTe)n superlattices (SLs). The computational method is based on the full-potential linear muffin tin orbitals method (FP-LMTO) augmented by a plane-wave basis (PLW). The exchange and correlation energy is described in the local density approximation (LDA) using the PerdewWang parameterization including a generalized gradient approximation (GGA). The calculated structural properties of CdTe and ZnTe compounds are in good agreement with available experimental and theoretical data. We have also carried out band-structure calculations for the binary CdTe and ZnTe compounds and their (CdTe)n/(ZnTe)n superlattices (SLs). From the results of the electronic properties, we find that the parent material CdTe and ZnTe and their superlattices have a direct band gaps. The fundamental band gap decreases with increasing the number of monolayer n.

M. Boucharef; S. Benalia; D. Rached; M. Merabet; L. Djoudi; B. Abidri; N. Benkhettou

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

PoS(EPS-HEP2013)326 Measurement of the ratio of the leptonic widths  

E-Print Network [OSTI]

PoS(EPS-HEP2013)326 Measurement of the ratio of the leptonic widths ee/µµ for the J/ V. M. The European Physical Society Conference on High Energy Physics EPS-HEP2013 18-24 July 2013 Stockholm, Sweden-NonCommercial-ShareAlike Licence. http://pos.sissa.it/ #12;PoS(EPS-HEP2013)326 ee(J/)/µµ (J/) measurement E. M. Baldin 1 2 3 4 5 6

102

Electrochemical Performance of LiMnPO4 Synthesized with Off-Stoichiometry  

E-Print Network [OSTI]

of LiMPO4 compounds is of interest as cathode ma- terials for rechargeable lithium batteries. LiFePO4 has been in- tensely studied and several techniques such as carbon coating, coat- ing with a metallic2PO4 using heat-treatments at 350°C for 10 h and at 700°C for 10 h under Ar or air atmosphere

Ceder, Gerbrand

103

Optimization of LiFePO4 Nanoparticle Suspensions with Polyethyleneimine for Aqueous Processing  

SciTech Connect (OSTI)

Addition of dispersants to aqueous based lithium-ion battery electrode formulations containing LiFePO{sub 4} is critical to obtaining a stable suspension. The resulting colloidal suspensions enable dramatically improved coating deposition when processing electrodes. This research examines the colloidal chemistry modifications based on polyethyleneimine (PEI) addition and dispersion characterization required to produce high quality electrode formulations and coatings for LiFePO{sub 4} active cathode material. The isoelectric point, a key parameter in characterizing colloidal dispersion stability, of LiFePO{sub 4} and super P C45 were determined to be pH = 4.3 and 3.4, respectively. PEI, a cationic surfactant, was found to be an effective dispersant. It is demonstrated that 1.0 wt % and 0.5 wt % PEI were required to stabilize the LiFePO{sub 4} and super P C45 suspension, respectively. LiFePO{sub 4} cathode suspensions with 1.5 wt % PEI demonstrated the best dispersibility of all components, as evidenced by viscosity and agglomerate size of the suspensions and elemental distribution within dry cathodes. The addition of PEI significantly improved the LiFePO{sub 4} performance.

Li, Jianlin [ORNL; Armstrong, Beth L [ORNL; Kiggans, Jim [ORNL; Daniel, Claus [ORNL; Wood III, David L [ORNL

2012-01-01T23:59:59.000Z

104

ORISE "AK RlDGE lNSTlT"TE FOR SCIENCE AND EDUCATION  

Office of Legacy Management (LM)

t\i,;;; il.,. (' t\i,;;; il.,. (' . d ORISE "AK RlDGE lNSTlT"TE FOR SCIENCE AND EDUCATION August 1,200l Robert Atkin U.S. Department of Energy Oak Ridge Operations Office P.O. Box 2001 Oak Ridge, TN 3783 1 SUBJECT: CONTRACT NO. DE-AC05000R22750 FINAL REPORT-VERIFICATION SURVEY OF THE NEW BRUNSWICK LABORATORY SITE, NEW BRUNSWICK, NEW JERSEY Dear Mr. Atkin: The Environmental Survey and Site Assessment Program (ESSAP) of the Oak Ridge Institute for Science and Education (ORISE) conducted verification surveys at the New Brunswick Laboratory Site, located in the town of New Brunswick, New Jersey, during the period of August through November 1996. A draft report detailing the procedures and results of the survey was submitted to the U.S. Department of Energy

105

Luminescence Enhancement of CdTe Nanostructures in LaF3:Ce/CdTe Nanocomposites  

SciTech Connect (OSTI)

Radiation detection demands new scintillators with high quantum efficiency, high energy resolution and short luminescence lifetimes. Nanocomposites consisting of quantum dots and Ce3+ doped nanophosphors may be able to meet these requirements. Here we report the luminescence of LaF3:Ce/CdTe nanocomposites which were synthesized by a wet chemistry method. In LaF3:Ce/CdTe nanocomposites the CdTe quantum dots are converted into nanowires, while in LaF3/CdTe nanocomposites no such conversion is observed. The CdTe luminescence in LaF3:Ce/CdTe nanocomposites is enhanced about 5 times, while in LaF3/CdTe nanocomposites no enhancement was observed. Energy transfer, light-re-absorption and surface passivation are likely the reasons for the luminescence enhancement.

Yao, Mingzhen; Zhang, Xing; Ma, Lun; Chen, Wei; Joly, Alan G.; Huang, Jinsong; Wang, Qingwu

2010-11-15T23:59:59.000Z

106

New chalcogenide glasses in the CdTe-AgI-As{sub 2}Te{sub 3} system  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer Determination of the glass-forming region in the pseudo-ternary CdTe-AgI-As{sub 2}Te{sub 3} system. Black-Right-Pointing-Pointer Characterization of macroscopic properties of the new CdTe-AgI-As{sub 2}Te{sub 3} glasses. Black-Right-Pointing-Pointer Characterization of the total conductivity of CdTe-AgI-As{sub 2}Te{sub 3} glasses. Black-Right-Pointing-Pointer Comparison between the selenide and telluride equivalent systems. -- Abstract: Chalcogenide glasses in the pseudo-ternary CdTe-AgI-As{sub 2}Te{sub 3} system were synthesized and the glass-forming range was determined. The maximum content of CdTe in this glass system was found to be equal to 15 mol.%. The macroscopic characterizations of samples have consisted in Differential Scanning Calorimetry, density, and X-ray diffraction measurements. The cadmium telluride addition does not generate any significant change in the glass transition temperature but the resistance of binary AgI-As{sub 2}Te{sub 3} glasses towards crystallisation is estimated to be decreasing on the base of {Delta}T = T{sub x} - T{sub g} parameter. The total electrical conductivity {sigma} was measured by complex impedance spectroscopy. First, the CdTe additions in the (AgI){sub 0.5}(As{sub 2}Te{sub 3}){sub 0.5} host glass, (CdTe){sub x}(AgI){sub 0.5-x/2}(As{sub 2}Te{sub 3}){sub 0.5-x/2} lead to a conductivity decrease at x {<=} 0.05. Then, the behaviour is reversed at 0.05 {<=} x {<=} 0.15. The obtained results are discussed by comparison with the equivalent selenide system.

Kassem, M. [Univ. Picardie Jules Verne, F-80000 Amiens (France)] [Univ. Picardie Jules Verne, F-80000 Amiens (France); Le Coq, D., E-mail: david.lecoq@univ-littoral.fr [Univ. Lille Nord de France, F-59000 Lille (France); ULCO, LPCA, EA 4493, F-59140 Dunkerque (France); Boidin, R.; Bychkov, E. [Univ. Lille Nord de France, F-59000 Lille (France) [Univ. Lille Nord de France, F-59000 Lille (France); ULCO, LPCA, EA 4493, F-59140 Dunkerque (France)

2012-02-15T23:59:59.000Z

107

Relations between structural parameters and physical properties in CdTe and Cd0.96Zn0.04Te alloys  

E-Print Network [OSTI]

481 Relations between structural parameters and physical properties in CdTe and Cd0.96Zn0.04Te cristaux de CdTe et de Cd0,96Zn0,04Te, de densité de dislocations variant entre 5 x 104 et 6 x 105 cm-2. La and photoluminescence experiments were performed on several CdTe and Cd0.96Zn0.04Te crystals with dislocation density

Paris-Sud XI, Université de

108

Synthesis of HA-Seeded TTCP (Ca4(PO4)2O) Powders at 12301C from Ca(CH3COO)2 . H2O and NH4H2PO4  

E-Print Network [OSTI]

Synthesis of HA-Seeded TTCP (Ca4(PO4)2O) Powders at 12301C from Ca(CH3COO)2 . H2O and NH4H2PO4 University, Clemson, South Carolina 29634 Tetracalcium phosphate (TTCP) Ca4(PO4)2O is one of the major powder- state process by soaking Ca- and P-containing precursors be- tween 13501 and 15001C. Such procedures

Tas, A. Cuneyt

109

Relationships between Fe redistribution and Po2 during mineral dissolution under low O2 conditions  

Science Journals Connector (OSTI)

Iron-bearing olivine was dissolved at different partial pressures of atmospheric oxygen (Po2) in a glove box to clarify the relationships between Fe redistribution and Po2 during mineral dissolution and to provide a deeper understanding of weathering under low oxygen conditions. The olivine was first dissolved at pH 4.56.0 and 1555C under the ambient air using a modified flow-through system. Some portion of Fe2+ released from olivine was oxidized and precipitated as Fe3+ oxides/hydroxides, and remained in the system, while the other portion flowed out of the system as Fe2+. Then, a kinetic model, considering mineral dissolution, water flow and Fe2+ oxidation rates, was made to estimate Fe behavior at different pHs, temperatures and dissolved O2 concentrations during dissolution. The kinetic model was applied to the experimental results under the ambient air; the validity of the model was confirmed by good agreement between the observed and calculated ? values where ? is a ratio of the amount of Fe3+ precipitated to the total amount of Fe2+ actually dissolved from olivine, an indicator of the oxidation state of a mineral dissolution system. Then, by using the kinetic model, we analyzed the results of the olivine dissolution experiments at 0.20 atm to 8.7נ105atm of Po2 and at constant pH and temperature. While the dissolution rates of olivine were not affected significantly by Po2, the olivine dissolution has indicated that ? decreases with decrease in Po2 and the ? variation at low Po2 cannot be explained by the classic rate law of Fe2+ oxidation. The calculations of ? based on the above kinetic model have revealed that the observed ? variation is well explained by the decrease in the power of [O2] (x) with decrease in [O2] for the Fe2+ oxidation rate, d[Fe2+]/dt=k[Fe2+][O2]x[OH]y (k: the rate constant, 0?x?1, and y?2); the x value decreased from 1.0 to 0.76 at 0.20 to 8.7נ105atm of Po2, respectively. The ??Po2 relationships imply that the ? value in a paleosol (fossil weathering profile) increases with increase in Po2 in the Paleoproterozoic.

Hirokazu Sugimori; Yoshiki Kanzaki; Takashi Murakami

2012-01-01T23:59:59.000Z

110

Characterization of CdZnTe ambient temperature detectors  

SciTech Connect (OSTI)

A great deal of interest has been generated in the use of cadmium telluride (CdTe) and cadmium zinc telluride (CdZnTe) detectors for ambient temperature detection of radionuclides. The addition of zinc to CdTe provides several benefits that enhance the materials operational characteristics at ambient temperature. Recent movement in the industry is to produce larger volume detectors using CdZnTe without much known about the effects of larger geometry on performance. The purpose of this study is to get an idea of the relationship of detector performance to both area and thickness variations.

Lavietes, A.

1994-09-01T23:59:59.000Z

111

High Performance Zintl Phase TE Materials with Embedded Particles...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

TE Materials with Embedded Particles Presents results from embedding nanoparticles in magnesium silicide alloy matrix reducing thermal conductivity by phonon scattering and...

112

A Search for Neutrinoless Double Beta Decay of Te-130.  

E-Print Network [OSTI]

??This dissertation describes an experimental search for neutrinoless double beta (0???) decay of 130Te. An observation of 0??? decay would establish that neutrinos are Majorana (more)

Bryant, Adam Douglas

2010-01-01T23:59:59.000Z

113

Effect of Manganese Concentration in the Cd1-xMnxTe/CdTe Tandem Structure on Photovoltaic Energy Conversion  

Science Journals Connector (OSTI)

Abstract The photovoltaic electricity is obtained by direct conversion of sunlight into electricity by solar cells. The objective of this work is the study and simulation of a Tandem photovoltaic structure based on Cd1-xMnxTe as top material cell. This paper describes the optimization of energy efficiency for Cd1-xMnxTe thin films deposited by epitaxy on CdTe substrat. We present the impact of the manganese concentration in Cd1-xMnxTe thin films on solar cells performances. Our study includes simulation results to show the conversion efficiency and main performances factors as function of the manganese concentration.

A. Aissat; M. El Bey; M. Fathi; J.P. Vilcot

2013-01-01T23:59:59.000Z

114

Atomistic simulation of CdTe solid-liquid coexistence equilibria...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

simulation of CdTe solid-liquid coexistence equilibria. Atomistic simulation of CdTe solid-liquid coexistence equilibria. Abstract: Atomistic simulations of CdTe using a...

115

Strain relaxation of CdTe films growing on lattice-mismatched substrates  

E-Print Network [OSTI]

gap approaches the value of bulk CdTe crystals. This makesbulk crystals with crystalline CdTe ?lms for the purpose ofthe top layer of thick CdTe ?lms grown on Si(001) substrate

Ma, Zhixun; Yu, Kin Man; Walukiewicz, Wladek; Yu, Peter Y.; Mao, Samuel S.

2009-01-01T23:59:59.000Z

116

Mechanical and Electrical Properties of CdTe Tetrapods Studied by Atomic Force Microscopy  

E-Print Network [OSTI]

Electrical Properties of CdTe Tetrapods Studied by Atomicelectrical properties of CdTe tetrapod-shaped nanocrystalsIntroduction CdSe and CdTe nanocrystals possess interesting

2008-01-01T23:59:59.000Z

117

E-Print Network 3.0 - amorphous ge-sb-te films Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

times in GeSbTe films irradiated... commercial phase-change optical recording systems, such as those based on GeSbTe Ref. 3 or AglnSbTe,4 use... the crystalline and...

118

Mixed Salts of LiTFSI and LiBOB for Stable LiFePO4-Based Batteries...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mixed Salts of LiTFSI and LiBOB for Stable LiFePO4-Based Batteries at Elevated Temperatures. Mixed Salts of LiTFSI and LiBOB for Stable LiFePO4-Based Batteries at Elevated...

119

Dataset Lifecycle Policy Development & Implementation at the PO.DAAC AGU Paper Number: IN53C-1579  

E-Print Network [OSTI]

Dataset Lifecycle Policy Development & Implementation at the PO.DAAC AGU Paper Number: IN53C-1579 Dataset Lifecycle Policy Development & Implementation at the PO.DAAC National Aeronautics and Space Aeronautics and Space Administration Jet Propulsion Laboratory/California Institute of Technology II. Dataset

Wright, Dawn Jeannine

120

Simplified Electrochemical and Thermal Model of LiFePO4-Graphite Li-Ion Batteries for Fast Charge Applications  

E-Print Network [OSTI]

Simplified Electrochemical and Thermal Model of LiFePO4- Graphite Li-Ion Batteries for Fast Charge, a simplified electrochemical and thermal model of LiFePO4-graphite based Li-ion batteries is developed for battery management system (BMS) applications and comprehensive aging investigations. Based on a modified

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "te po lv" 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

Particle-size and morphology dependence of the preferred interface orientation in LiFePO4 nano-  

E-Print Network [OSTI]

Particle-size and morphology dependence of the preferred interface orientation in LiFePO4 nano insights into the equilibrium properties and potential two-phase lithiation mechanisms in LiFePO4 nano, if experimentally-relevant nano-particles were to (de)lithiate under a thermodynamic two-phase mechanism

Ceder, Gerbrand

122

Effects of O vacancies and N or Si substitutions on Li+ migration in Li3PO4 electrolytes  

E-Print Network [OSTI]

Effects of O vacancies and N or Si substitutions on Li+ migration in Li3PO4 electrolytes from first constructed realistic models of various types of isolated defects in crystalline Li3PO4 involving O vacancies on the production and migration of mobile Li ions. We find that mobile Li-ion vacancies are stabilized by removing

Holzwarth, Natalie

123

Interfacial Reaction Between Nb Foil and n-Type PbTe Thermoelectric Materials During Thermoelectric Contact Fabrication  

Science Journals Connector (OSTI)

PbTe is a high-conversion-efficiency thermoelectric (TE) material that is commonly used in space exploration applications. Integration of PbTe in TE devices has a significant impact on the conversion efficienc...

Haiyang Xia; Cheng-Lung Chen; Fivos Drymiotis; Aiping Wu

2014-11-01T23:59:59.000Z

124

CdS/CdTe Solar Cells Containing Directly-Deposited CdSxTe1-x Alloy Layers  

SciTech Connect (OSTI)

A CdS{sub x}Te{sub 1-x} layer forms by interdiffusion of CdS and CdTe during the fabrication of thin-film CdTe photovoltaic (PV) devices. The CdS{sub x}Te{sub 1-x} layer is thought to be important because it relieves strain at the CdS/CdTe interface that would otherwise exist due to the 10% lattice mismatch between these two materials. Our previous work [1] has indicated that the electrical junction is located in this interdiffused CdS{sub x}Te{sub 1-x} region. Further understanding, however, is essential to predict the role of this CdS{sub x}Te{sub 1-x} layer in the operation of CdS/CdTe devices. In this study, CdS{sub x}Te{sub 1-x} alloy films were deposited by radio-frequency (RF) magnetron sputtering and co-evaporation from CdTe and CdS sources. Both RF-magnetron-sputtered and co-evaporated CdS{sub x}Te{sub 1-x} films of lower S content (x<;0.3) have a cubic zincblende (ZB) structure akin to CdTe, whereas those of higher S content have a hexagonal wurtzite (WZ) structure like that of CdS. Films become less preferentially oriented as a result of a CdCl{sub 2} heat treatment (HT) at {approx}400 C for 5 min. Films sputtered in a 1% O{sub 2}/Ar ambient are amorphous as deposited, but show CdTe ZB, CdS WZ, and CdTe oxide phases after a CdCl{sub 2} HT. Films sputtered in O{sub 2} partial pressure have a much wider bandgap than expected. This may be explained by nanocrystalline size effects seen previously [2] for sputtered oxygenated CdS (CdS:O) films. Initial PV device results show that the introduction of a directly-deposited CdS{sub x}Te{sub 1-x} alloy layer into the device structure produces devices of comparable performance to those without the alloy layer when a CdCl{sub 2} HT is performed. Further investigation is required to determine whether the CdCl{sub 2} heat treatment step can be altered or eliminated through direct deposition of the alloy layer.

Duenow, J. N.; Dhere, R. G.; Moutinho, H. R.; To, B.; Pankow, J. W.; Kuciauskas, D.; Gessert, T. A.

2011-01-01T23:59:59.000Z

125

NONLINEAR OPTICAL EFFECTS IN ROTATIONALLY-TWINNED CRYSTALS: AN EVALUATION OF CdTe, ZnTe AND ZnSe  

E-Print Network [OSTI]

405 NONLINEAR OPTICAL EFFECTS IN ROTATIONALLY-TWINNED CRYSTALS: AN EVALUATION OF CdTe, ZnTe AND Zn une loi en N2. On discutera les avantages potentiels en optique non linéaire des cristaux de CdTe, Zn-spaced twin planes the enhancement is proportional to N2. A comparison is made between CdTe, ZnTe, and Zn

Boyer, Edmond

126

?-decay of the new isotope Po187: Probing prolate structures beyond the neutron mid-shell at N = 104  

Science Journals Connector (OSTI)

The new neutron-deficient isotope Po187 has been identified in the complete fusion reaction Ti46+Sm144?Po187+3n at the velocity filter SHIP. Striking features of the Po187 ? decay are the strongly-hindered decay to the spherical ground state and unhindered decay to a surprisingly low-lying deformed excited state at 286 keV in the daughter nucleus Pb183. Based on the potential energy surface calculations, the Po187 ground state and the 286 keV excited state in Pb183 were interpreted as being of prolate origin. The systematic deviation of the ?-decay properties in the lightest odd-A Po isotopes relative to the smooth behavior in the even-A neighbors is discussed. Improved data for the decay of 187Bim,g were also obtained.

A. N. Andreyev; S. Antalic; D. Ackermann; S. Franchoo; F. P. Heberger; S. Hofmann; M. Huyse; I. Kojouharov; B. Kindler; P. Kuusiniemi; S. R. Lesher; B. Lommel; R. Mann; G. Mnzenberg; K. Nishio; R. D. Page; J. J. Ressler; B. Streicher; S. Saro; B. Sulignano; P. Van Duppen; D. Wiseman; R. Wyss

2006-04-25T23:59:59.000Z

127

Twin Laws and Energy in Monoclinic Hydroxyapatite, Ca5(PO4)3(OH)  

Science Journals Connector (OSTI)

Twin Laws and Energy in Monoclinic Hydroxyapatite, Ca5(PO4)3(OH) ... The structure of the resulting twinned interfaces are hypothesized, and the twin energy for each interface is calculated. ... It results that the activation energy for the nucleation of a three-dimensional (3D) twin can be hardly distinguished from the one needed to nucleate a single 3D crystal. ...

Dino Aquilano; Marco Bruno; Marco Rubbo; Linda Pastero; Francesco Roberto Massaro

2014-11-25T23:59:59.000Z

128

Philadelphia University P.O. Box (1) Philadelphia University 19392 Jordan  

E-Print Network [OSTI]

[1/3] Philadelphia University P.O. Box (1) Philadelphia University 19392 Jordan Fax Number: +962 in Computer Science Personal Information Date of Birth : April 7, 1961 Place of Birth : Irbid, Jordan of Science (With Honor) Computer Science Department, The Yarmouk University, Ibid, Jordan. 1980 Secondary

129

PoS(HTRS2011)024 Implications of high-precision spectra of  

E-Print Network [OSTI]

PoS(HTRS2011)024 Implications of high-precision spectra of thermonuclear X-ray bursts A few years after the discovery of thermonuclear X-ray bursts from accreting neutron stars, Jan van Paradijs proposed a method for using observations of thermonuclear X-ray bursts to constrain both

Miller, Cole

130

Philosophy of Computer Science: PoC Meets AI and Law  

E-Print Network [OSTI]

Philosophy of Computer Science: PoC Meets AI and Law (Roundtable Discussion) Organized by Rainhard thematically related to, and will follow consecutively from, the Symposium on History and Philosophy in computer science. The Philosophy of Computer Science is concerned with philosophical issues that arise from

Fisher, Michael

131

Studies of Neutron Backgrounds for PoGOLite a Balloon-borne Gamma-ray Polarimeter  

E-Print Network [OSTI]

Studies of Neutron Backgrounds for PoGOLite ­ a Balloon-borne Gamma-ray Polarimeter Jaroslav, neutrons stars and jets from active galaxies. To this day, polarisation has only been measured for the Crab, performed using Monte Carlo simulations in Geant4, of the atmospheric neutron background and its effect

Haviland, David

132

Electron-impact study of PO2 using the R-matrix method  

Science Journals Connector (OSTI)

The R-matrix approach is used to study the electron scattering from PO2 radical at low electron impact energies. The elastic scattering phenomenon is studied in static-exchange, one-state and many-states close-coupling approximation. The elastic differential cross sections, corresponding momentum-transfer cross sections, and collision frequency are calculated in the one-state configuration interaction approximation only. Calculations reveal a stable bound state of PO2? having symmetry 1A1, a configuration of ?8a12,?2b12,?5b22,?1a22, and vertical electron affinity of 2.94 eV. The excited state of anion PO2? having symmetry 3B1 is also just bound relative to the ground state of PO2 at its equilibrium geometry. The shape, core-excited, and Feshbach resonances are analyzed in different symmetries up to 7 eV. The partial waves up to l=4 are used to represent continuum electron. The converged cross sections are obtained for the partial waves having l greater than 4 by applying Born correction. Certain interesting spectroscopic properties of radical are also reported.

Anand Bharadvaja; Savinder Kaur; K. L. Baluja

2013-06-06T23:59:59.000Z

133

PoS(ICHEP2010)487 ATL-DAQ-PROC-2010-053  

E-Print Network [OSTI]

PoS(ICHEP2010)487 ATL-DAQ-PROC-2010-053 30November2010 The ATLAS High Level Trigger Configuration, Egham, TW20 0EX, UK E-mail: S.George@rhul.ac.uk On behalf of the ATLAS Collaboration. In 2010 ATLAS has execution time, the Steering has a facility to cache results, avoiding later recalculation. To control rate

Sheldon, Nathan D.

134

The Exploits of Sman shads mythical founder, Dge rab shad po can  

E-Print Network [OSTI]

in archive entry) This oral history account describes the exploits of Sman shads mythical founder, Dge rab shad po can. Genre or type (i.e. epic, song, ritual) Oral history. Name of recorder (if different from collector) Zla ba sgrol ma...

Zla ba sgrol ma

2009-11-17T23:59:59.000Z

135

Comparing NWS PoP Forecasts to Third-Party Providers  

Science Journals Connector (OSTI)

In this paper, the authors verify probability of precipitation (PoP) forecasts provided by the National Weather Service (NWS), The Weather Channel (TWC), and CustomWeather (CW). The n-day-ahead forecasts, where n ranges from 1 to 3 for the NWS, ...

J. Eric Bickel; Eric Floehr; Seong Dae Kim

2011-10-01T23:59:59.000Z

136

Session: Poster Session + Poster Award + Scientific Award + Excellent young wind doctor award (PO.202) Track: Technical  

E-Print Network [OSTI]

tower-mounted instruments. Typical turbine hub heights are now in excess of 70m. For such machinesSession: Poster Session + Poster Award + Scientific Award + Excellent young wind doctor award (PO.202) Track: Technical COMMERCIAL LIDAR PROFILERS FOR WIND ENERGY. A COMPARATIVE GUIDE. (abstract

137

: BG051PO001/07/3.3-02/7 1. . -  

E-Print Network [OSTI]

for students and educators Allow s for publishing and Tagging of m ultim edia resources Critical feedback via com m entingAllow s for rating of m ultim edia resources Video blogging : BG051PO001/07/3.3-02/7 #12

Borissova, Daniela

138

Session: Poster Session + Poster Award + Scientific Award + Excellent young wind doctor award (PO.206) Track: Technical  

E-Print Network [OSTI]

Session: Poster Session + Poster Award + Scientific Award + Excellent young wind doctor award (PO the erection of masts equipped with calibrated cup or sonic anemometers. In order to reduce costs associated, the mean horizontal wind speed measured with a LiDAR shows very good comparison to cup anemometers. However

139

Abnormal characteristics in crystallisation of Ca(PO3)2 glass  

Science Journals Connector (OSTI)

... When the chemical composition of a glass is the same as that of the growing crystal, equation (1) is applicable ... viscosity (P), and ?G is the degree of undercooling. In Ca(PO3)2 glass, the crystalline phase has the same chemical composition as that of the ...

Yoshihiro Abe

1979-11-01T23:59:59.000Z

140

Li ion migration in Li3PO4 electrolytes: Effects of O vacancies and N substitutions  

E-Print Network [OSTI]

Li ion migration in Li3PO4 electrolytes: Effects of O vacancies and N substitutions Y. A. Dua and N structures of isolated defects associated with extrinsic Li ion vacancies and interstitials. In particular the combination of an O vacancy and a N substitution, stabilizing a Li ion vacancy. We also studied the effects

Holzwarth, Natalie

Note: This page contains sample records for the topic "te po lv" 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

PoS(Bormio2013)041 Direct Reactions for Nuclear Astrophysics  

E-Print Network [OSTI]

PoS(Bormio2013)041 Direct Reactions for Nuclear Astrophysics C.A. Bertulani Department of Physics at the small astrophysical energies. In recent years indirect reaction methods have been developed and applied to extract low-energy astrophysical S-factors. These methods require a combination of new experimental

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

142

Alameda Creek Alliance P.O. Box 2626 Niles, CA 94536 (510) 499-9185  

E-Print Network [OSTI]

Alameda Creek Alliance P.O. Box 2626 · Niles, CA · 94536 · (510) 499-9185 e-mail: alamedacreek@hotmail.com web site: www.alamedacreek.org Alameda Creek Alliance Annual Membership Dinner Presentation Alliance. Join the Alameda Creek Alliance for a presentation by Robin Grossinger of the San Francisco

143

TE Link Dormant Mode Used in GMPLS Optical Transport Networks for Energy Saving  

Science Journals Connector (OSTI)

This paper evaluates power efficiency of TE link dormant mode in optical transport network, considering daily traffic variability and GMPLS protocol. The proposed TE link dormant mode...

Li, Xin; Huang, Shanguo; Guo, Bingli; Zhang, Jie; Gu, Wanyi

144

Laser irradiation effects on the CdTe/ZnTe quantum dot structure studied by Raman and AFM spectroscopy  

SciTech Connect (OSTI)

Micro-Raman spectroscopy has been applied to investigate the impact of laser irradiation on semiconducting CdTe/ZnTe quantum dots (QDs) structures. A reference sample (without dots) was also studied for comparison. Both samples were grown by molecular beam epitaxy technique on the p-type GaAs substrate. The Raman spectra have been recorded for different time of a laser exposure and for various laser powers. The spectra for both samples exhibit peak related to the localized longitudinal (LO) ZnTe phonon of a wavenumber equal to 210 cm{sup -1}. For the QD sample, a broad band corresponding to the LO CdTe phonon related to the QD-layer appears at a wavenumber of 160 cm{sup -1}. With increasing time of a laser beam exposure and laser power, the spectra get dominated by tellurium-related peaks appearing at wavenumbers around 120 cm{sup -1} and 140 cm{sup -1}. Simultaneously, the ZnTe surface undergoes rising damage, with the formation of Te aggregates at the pinhole edge as reveal atomic force microscopy observations. Local temperature of irradiated region has been estimated from the anti-Stokes/Stokes ratio of the Te modes intensity and it was found to be close or exceeding ZnTe melting point. Thus, the laser damage can be explained by the ablation process.

Zielony, E.; Placzek-Popko, E.; Henrykowski, A.; Gumienny, Z.; Kamyczek, P.; Jacak, J. [Institute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw (Poland); Nowakowski, P.; Karczewski, G. [Institute of Physics, Polish Academy of Sciences, al. Lotnikow 32/46, 02-668 Warsaw (Poland)

2012-09-15T23:59:59.000Z

145

Superprotonic Phase Transition in CsH(PO3H) Calum R. I. Chisholm, Ryan B. Merle, Dane A. Boysen, and Sossina M. Haile*  

E-Print Network [OSTI]

and like typical salts of phosphorous acid, it contains the tetrahedral group PO3H.12 The overall chemical) was synthesized from aqueous solutions of cesium carbonate and phosphorous acid in which the Cs:PO3H mole ratio

146

Use of separate ZnTe interface layers to form ohmic contacts to p-CdTe films  

DOE Patents [OSTI]

A method of is disclosed improving electrical contact to a thin film of a p-type tellurium-containing II-VI semiconductor comprising: depositing a first undoped layer of ZnTe on a thin film of p-type tellurium containing II-VI semiconductor with material properties selected to limit the formation of potential barriers at the interface between the p-CdTe and the undoped layer, to a thickness sufficient to control diffusion of the metallic-doped ZnTe into the p-type tellurium-containing II-VI semiconductor, but thin enough to minimize affects of series resistance; depositing a second heavy doped p-type ZnTe layer to the first layer using an appropriate dopant; and depositing an appropriate metal onto the outer-most surface of the doped ZnTe layer for connecting an external electrical conductor to an ohmic contact. 11 figs.

Gessert, T.A.

1999-06-01T23:59:59.000Z

147

Use of separate ZnTe interface layers to form OHMIC contacts to p-CdTe films  

DOE Patents [OSTI]

A method of improving electrical contact to a thin film of a p-type tellurium-containing II-VI semiconductor comprising: depositing a first undoped layer of ZnTe on a thin film of p-type tellurium containing II-VI semiconductor with material properties selected to limit the formation of potential barriers at the interface between the p-CdTe and the undoped layer, to a thickness sufficient to control diffusion of the metallic-doped ZnTe into the p-type tellurim-containing II-VI semiconductor, but thin enough to minimize affects of series resistance; depositing a second heavy doped p-type ZnTe layer to the first layer using an appropriate dopant; and depositing an appropriate metal onto the outer-most surface of the doped ZnTe layer for connecting an external electrical conductor to an ohmic contact.

Gessert, Timothy A. (Conifer, CO)

1999-01-01T23:59:59.000Z

148

Fabrication of Graphene Embedded LiFePO4 Using a Catalyst Assisted Self Assembly Method as a Cathode Material for High Power Lithium-Ion Batteries  

Science Journals Connector (OSTI)

Tailoring Crystal Structure and Morphology of LiFePO4/C Cathode Materials Synthesized by Heterogeneous Growth on Nanostructured LiFePO4 Seed Crystals ... Enhancement of Electrochemical Activity of LiFePO4 (olivine) by Amphiphilic Ru-bipyridine Complex Anchored to a Carbon Nanotube ... properties have also been investigated after assembling coin cells with the CA-graphene/LiFePO4 composite as a cathode active material. ...

WonKeun Kim; WonHee Ryu; DongWook Han; SungJin Lim; JiYong Eom; HyukSang Kwon

2014-03-12T23:59:59.000Z

149

Real-time observation of nanoscale topological transitions in epitaxial PbTe/CdTe heterostructures  

SciTech Connect (OSTI)

The almost completely immiscible PbTe/CdTe heterostructure has recently become a prototype system for self-organized quantum dot formation based on solid-state phase separation. Here, we study by real-time transmission electron microscopy the topological transformations of two-dimensional PbTe-epilayers into, first, a quasi-one-dimensional percolation network and subsequently into zero-dimensional quantum dots. Finally, the dot size distribution coarsens by Ostwald ripening. The whole transformation sequence occurs during all stages in the fully coherent solid state by bulk diffusion. A model based on the numerical solution of the Cahn-Hilliard equation reproduces all relevant morphological and dynamic aspects of the experiments, demonstrating that this standard continuum approach applies to coherent solids down to nanometer dimensions. As the Cahn-Hilliard equation does not depend on atomistic details, the observed morphological transformations are general features of the model. To confirm the topological nature of the observed shape transitions, we developed a parameter-free geometric model. This, together with the Cahn-Hilliard approach, is in qualitative agreement with the experiments.

Groiss, H., E-mail: heiko.groiss@jku.at, E-mail: istvan.daruka@jku.at; Daruka, I., E-mail: heiko.groiss@jku.at, E-mail: istvan.daruka@jku.at; Springholz, G.; Schffler, F. [Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Linz 4040 (Austria); Koike, K.; Yano, M. [Nanomaterials Microdevices Research Center, Osaka Institute of Technology, Asahi-ku Ohmiya, Osaka 535-8585 (Japan); Hesser, G. [Center for Surface- and Nanoanalytics (ZONA), Johannes Kepler University, Linz 4040 (Austria); Zakharov, N.; Werner, P. [Max Planck Institute of Microstructure Physics, Halle 06120 (Germany)

2014-01-01T23:59:59.000Z

150

Process Development for High Voc CdTe Solar Cells  

SciTech Connect (OSTI)

This is a cumulative and final report for Phases I, II and III of this NREL funded project (subcontract # XXL-5-44205-10). The main research activities of this project focused on the open-circuit voltage of the CdTe thin film solar cells. Although, thin film CdTe continues to be one of the leading materials for large-scale cost-effective production of photovoltaics, the efficiency of the CdTe solar cells have been stagnant for the last few years. This report describes and summarizes the results for this 3-year research project.

Ferekides, C. S.; Morel, D. L.

2011-05-01T23:59:59.000Z

151

The development of low cost LiFePO4-based high power lithium-ion batteries  

SciTech Connect (OSTI)

The cycling performance of low-cost LiFePO4-based high-power lithium-ion cells was investigated and the components were analyzed after cycling to determine capacity fade mechanisms. Pouch type LiFePO4/natural graphite cells were assembled and evaluated by constant C/2 cycling, pulse-power and impedance measurements. From post-test electrochemical analysis after cycling, active materials, LiFePO4 and natural graphite, showed no degradation structurally or electrochemically. The main reasons for the capacity fade of cell were lithium inventory loss by side reaction and possible lithium deposition on the anode.

Shim, Joongpyo; Sierra, Azucena; Striebel, Kathryn A.

2003-11-25T23:59:59.000Z

152

physica status solidi, 19 June 2012 Amorphous structures of Ge/Sb/Te  

E-Print Network [OSTI]

physica status solidi, 19 June 2012 Amorphous structures of Ge/Sb/Te alloys: Density functional functional simulations, Ge/Sb/Te alloys. Corresponding author: e-mail r.jones@fz-juelich.de, Phone: +49 discussed the alloy As30Ge10Si12Te48, and Te-based alloys have been well represented ever since. Alloys

153

Paul Sellin, Radiation Imaging Group The role of defects on CdTe detector performance  

E-Print Network [OSTI]

Paul Sellin, Radiation Imaging Group The role of defects on CdTe detector performance P.J. Sellin1-destructive material characterisation techniques have been applied to CdTe wafers grown by the Travelling Heater Method Imaging Group PL mapping of whole CdTe wafers PL ( =819 nm) scan for two CdTe wafers, (left: wafer L700

Sellin, Paul

154

Self-Assembly of CdTe Tetrapods into Network Monolayers at the Air/Water  

E-Print Network [OSTI]

Self-Assembly of CdTe Tetrapods into Network Monolayers at the Air/Water Interface Matthew D present a versatile method for cadmium telluride (CdTe) tetrapod syn- thesis by utilizing multiple Te the tetrapod shape. CdTe tetra- pods are a promising inorganic semicon- ductor for photovoltaic cells due

Lin, Zhiqun

155

Analysis of the thermal behavior of a LiFePO4 battery cell  

Science Journals Connector (OSTI)

This paper presents theory, experiments and numerical modeling results for the electrothermal analysis of Lithium Iron Phosphate (LiFePO4) battery cells. Thermal management of batteries is important for several reasons including thermal runaway and maintaining battery operating time. A battery pack is comprised of battery cells which are stacked together without cooling surfaces except for the pack outer surface. The central cells in the pack are therefore exposed to the risk of overheating. A model for a single specific commercial LiFePO4 battery cell is presented together with preliminary experiments and results for determination of heating sources during charging and discharging. Based on the experimental results we extract model parameters for use in the model. The experiments lead to relations for the cell surface temperature and the lump temperature of the cell. A reasonable agreement between experiments and the model is found and suggestions for further work is indicated.

Marian-Ciprian Niculu??; Christian Veje

2012-01-01T23:59:59.000Z

156

Pressure-Induced Transformations of the Low-Cristobalite Phase of GaPO4  

Science Journals Connector (OSTI)

Tsuneyuki et al. predicted a new high pressure phase of silica using a molecular dynamics calculation; this calculation was novel in that it predicted a new crystal structure using only a knowledge of the chemical composition [Nature (London) 339, 209 (1989)]. We report that the low-cristobalite phase of GaPO4 undergoes a pressure-induced transition at 15.9 GPa to this novel phase, which contains tetrahedral and octahedral coordination shells of oxygen atoms around the phosphorus and gallium atoms, respectively. This pressure-induced coordination change in GaPO4 verifies a mechanism proposed for the tetrahedral-to-octahedral coordination change in minerals that occurs in the transition zone between the upper and lower mantle.

Julie L. Robeson; Robert R. Winters; William S. Hammack

1994-09-19T23:59:59.000Z

157

Charge dynamics in KH{sub 2}PO{sub 4} systematically modified by proton irradiation  

SciTech Connect (OSTI)

Our systematic study employing high-resolution nuclear magnetic resonance measurements shows that the hydrogen bonds and proton transport in the KH{sub 2}PO{sub 4} (KDP) system may be tuned sensitively by proton irradiation. In particular, the hydrogen-bond length in KDP increased by a properly chosen dose of proton irradiation is shown to give rise to a minimum in the activation energy of proton hopping in the hydrogen-bond direction.

Kweon, Jin Jung; Lee, Kyu Won; Lee, Cheol Eui [Department of Physics and Institute for Nano Science, Korea University, Seoul 136-713 (Korea, Republic of); Lee, Kwang-Sei [Department of Nano Systems Engineering, Center for Nano Manufacturing, Inje University, Gimhae 621-749 (Korea, Republic of); Oh, In-Hwan [Neutron Science Division, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of)

2011-08-15T23:59:59.000Z

158

Energy measurement of muons above 1 TeV  

Science Journals Connector (OSTI)

Pair production and bremsstrahlung cross-sections have sufficient magnitude and energy-dependence for muons above 1 TeV to suggest the use of these cross-sections for measurement of muon energies. A series of Mon...

M. K. Moe

1970-03-11T23:59:59.000Z

159

Selective Area Epitaxy of CdTe on Nanopatterned Substrates.  

E-Print Network [OSTI]

?? HgCdTe/Si devices can potentially be significantly improved by the use of nanopatterned substrate structures on Si to control point and extended crystal defects. This (more)

Fahey, Stephen

2013-01-01T23:59:59.000Z

160

Selective Area Epitaxy of CdTe on Nanopatterned Substrates.  

E-Print Network [OSTI]

??HgCdTe/Si devices can potentially be significantly improved by the use of nanopatterned substrate structures on Si to control point and extended crystal defects. This thesis (more)

Fahey, Stephen D.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

A Search for Neutrinoless Double Beta Decay of Te-130  

E-Print Network [OSTI]

Bolometric experiments for neutrinoless double beta 3.2.1A Search for Neutrinoless Double Beta Decay of Te by AdamSpring 2010 A Search for Neutrinoless Double Beta Decay of

Bryant, Adam Douglas

2010-01-01T23:59:59.000Z

162

Optimized Operating Range for Large-Format LiFePO4/Graphite Batteries  

SciTech Connect (OSTI)

e investigated the long-term cycling performance of large format 20Ah LiFePO4/graphite batteries when they are cycled in various state-of-charge (SOC) ranges. It is found that batteries cycled in the medium SOC range (ca. 20~80% SOC) exhibit superior cycling stability than batteries cycled at both ends (0-20% or 80-100%) of the SOC even though the capcity utilized in the medium SOC range is three times as large as those cycled at both ends of the SOC. Several non-destructive techniques, including a voltage interruption approach, model-based parameter identification, electrode impedance spectra analysis, ?Q/?V analysis, and entropy change test, were used to investigate the performance of LiFePO4/graphite batteries within different SOC ranges. The results reveal that batteries at the ends of SOC exhibit much higher polarization impedance than those at the medium SOC range. These results can be attributed to the significant structural change of cathode and anode materials as revealed by the large entropy change within these ranges. The direct correlation between the polarization impedance and the cycle life of the batteries provides an effective methodology for battery management systems to control and prolong the cycle life of LiFePO4/graphite and other batteries.

Jiang, Jiuchun; Shi, Wei; Zheng, Jianming; Zuo, Pengjian; Xiao, Jie; Chen, Xilin; Xu, Wu; Zhang, Jiguang

2014-06-01T23:59:59.000Z

163

Large-Area Balloon-Borne Polarized Gamma Ray Observer (PoGO)  

SciTech Connect (OSTI)

We are developing a new balloon-borne instrument (PoGO), to measure polarization of soft gamma rays (30-200 keV) using asymmetry in azimuth angle distribution of Compton scattering. PoGO is designed to detect 10% polarization in 100mCrab sources in a 6-8 hour observation and bring a new dimension to studies on gamma ray emission/transportation mechanism in pulsars, AGNs, black hole binaries, and neutron star surface. The concept is an adaptation to polarization measurements of well-type phoswich counter consisting of a fast plastic scintillator (the detection part), a slow plastic scintillator (the active collimator) and a BGO scintillator (the bottom anti-counter). PoGO consists of close-packed array of 217 hexagonal well-type phoswich counters and has a narrow field-of-view ({approx} 5 deg{sup 2}) to reduce possible source confusion. A prototype instrument has been tested in the polarized soft gamma-ray beams at Advanced Photon Source (ANL) and at Photon Factory (KEK). On the results, the polarization dependence of EGS4 has been validated and that of Geant4 has been corrected.

Andersson, V.; Chen, P.; Kamae, T.; Madejski, G.; Mizuno, T.; Ng, J.; Tajima, H.; Thurston, T.; /SLAC; Bogaert, G.; /Ecole Polytechnique; Fukazawa, Y.; /Hiroshima U.; Saito,; Takahashi, T.; /Sagamihara, Inst. Space Astron. Sci.; Barbier, L.; Bloser, P.; Harding, A.; Hunter, S.; Krizmanic, J.; Mitchell, J.; Streitmatter, R.; Fernholz, R.; Groth, E.; /NASA, Goddard /Princeton U. /Royal Inst. Tech., Kista /Stockholm U. /Tokyo Inst. Tech. /Yamagata U.

2005-06-30T23:59:59.000Z

164

Ab initio study of the migration of small polarons in olivine LixFePO4 and their association with lithium ions and vacancies  

Science Journals Connector (OSTI)

Using first-principles pseudopotential calculations, we investigate the formation and transport of small polarons in olivine LixFePO4. It is demonstrated that excess charge carriers form small polarons in LiFePO4 and FePO4. Lower limits to the activation barrier for small polaron migration are calculated within the GGA+U framework. Additionally, the interaction between lithium ions and polarons is investigated and estimates of binding energies between lithium ions and polarons are provided. Our results show that the binding energy between electron polarons and Li+ ions in FePO4 is lower than that between hole polarons and lithium vacancies in LiFePO4. The electron transfer rate is predicted to be higher in FePO4 than in LiFePO4.

Thomas Maxisch; Fei Zhou; Gerbrand Ceder

2006-03-13T23:59:59.000Z

165

INTERACTION OF DEFECTS IN CdTe-CRYSTALS HEAVILY DOPED WITH CHLORINE  

E-Print Network [OSTI]

ClTe) and (VCd 2 ClTe)] form, but larger clusters as well. Thus, the compensation process in Cl doped CdTe, PAGE In order to clarify the mechanism of compensation in semi-insulating crystals of CdTe doped.1051/rphysap:01977001202023500 #12;236 FIG. 1. - Photoluminescence spectra of In and Cl doped CdTe. ND = 10 17

Paris-Sud XI, Université de

166

REVUE DE PHYSIQUE APPLIQUE PHASE DIAGRAM CALCULATION IN THE Te-Bi-Sb TERNARY SYSTEM  

E-Print Network [OSTI]

by the stoichio- metric compounds Bi2Te3-Sb2Te3 and SnTe-PbTe [16, 17] exhibit complete miscibility in both liquid 1976) Résumé. 2014 On calcule le diagramme de l'équilibre liquide-solide dans le système ternaire Te be achieved either by means of time- and labor-consuming measurements which permit plotting the equilibrium

Boyer, Edmond

167

LiFePO4/CA cathode nanocomposite with 3D conductive network structure for Li-ion battery  

Science Journals Connector (OSTI)

A novel LiFePO4/Carbon aerogel (LFP/CA) nanocomposite with 3D conductive network structure was synthesized by using carbon aerogels as both template and conductive framework, and subsequently wet impregnating LiF...

Qiong Jiang; Yunlong Xu; Chongjun Zhao

2012-04-01T23:59:59.000Z

168

Tunable bluegreen emission phosphor Ca2PO4Cl:Ce3+, Tb3+: Luminescence and energy transfer  

Science Journals Connector (OSTI)

Abstract A series of tunable emission phosphors Ca2PO4Cl:Ce3+, Tb3+ are synthesized by a high temperature solid-state method. The emitting color of Ca2PO4Cl:Ce3+, Tb3+ can be adjusted from blue to green with increasing the Tb3+ doping content. The energy transfer from Ce3+ to Tb3+ in Ca2PO4Cl has been validated, and proved to be a resonant type via a dipoledipole interaction. The critical distance of energy transfer is calculated by the concentration quenching method, and about 1.77nm. Ca2PO4Cl:Ce3+, Tb3+ has a broad excitation band in the near ultraviolet range, and produces green emission, therefore, it may have potential application as near ultraviolet convertible phosphor for white light emitting diodes.

Panlai Li; Zhijun Wang; Zhiping Yang; Qinglin Guo

2014-01-01T23:59:59.000Z

169

Electrical characteristics of the CdTe-n-CdHgTe structure fabricated in a single molecular-beam epitaxy process  

SciTech Connect (OSTI)

An extraordinary shape of the capacitance-voltage characteristics of CdTe-CdHgTe structures has been detected; these characteristics include a specific 'hump' in the inversion region, the height of which increased severalfold under illumination. Additional measurements using an optical probe, measurements of current-voltage characteristics, and an analysis of the energy-band diagram of the structure showed the following. CdTe, in contrast to CdHgTe, is a p-type semiconductor with an acceptor concentration of 1 x 10{sup 16} cm{sup -3}; there is a hole inversion layer in CdHgTe at the boundary with CdTe, which causes the 'hump'; and the barrier height for holes at the CdTe-Cd{sub 0.43}Hg{sub 0.57}Te interface was determined as 0.13 eV.

Mashukov, Yu. P., E-mail: dr_mashukov@mail.ru; Mikhailov, N. N.; Vasilyev, V. V. [Russian Academy of Sciences, Rzhanov Institute of Semiconductor Physics, Siberian Branch (Russian Federation)

2010-09-15T23:59:59.000Z

170

Phonon self-energy and origin of anomalous neutron scattering spectra in SnTe and PbTe thermoelectrics  

SciTech Connect (OSTI)

The anharmonic lattice dynamics of rock-salt thermoelectric compounds SnTe and PbTe are investigated with inelastic neutron scattering (INS) and first-principles calculations. The experiments show that, surprisingly, although SnTe is closer to the ferroelectric instability, phonon spectra in PbTe exhibit a more anharmonic character. This behavior is reproduced in first-principles calculations of the temperature-dependent phonon self-energy. Our simulations reveal how the nesting of phonon dispersions induces prominent features in the self-energy, which account for the measured INS spectra and their temperature dependence. We establish that the phase-space for three-phonon scattering processes, rather than just the proximity to the lattice instability, is the mechanism determining the complex spectrum of the transverse-optical ferroelectric mode.

Li, Chen [ORNL] [ORNL; Ma, Jie [ORNL] [ORNL; May, Andrew F [ORNL] [ORNL; Cao, Huibo [ORNL] [ORNL; Christianson, Andrew D [ORNL] [ORNL; Ehlers, Georg [ORNL] [ORNL; Singh, David J [ORNL] [ORNL; Sales, Brian C [ORNL] [ORNL; Delaire, Olivier A [ORNL] [ORNL

2014-01-01T23:59:59.000Z

171

A 3 TeV on 3 TeV proton-proton dedicated collider for Fermilab  

SciTech Connect (OSTI)

The Fermilab Dedicated Collider proposed in May 1983 is a 2 TeV on 2 TeV p)bar p) collider. The expected luminosity is )approximately) 10/sup 31/ cm/sup (minus/2)sec/sup )minus/1) and the estimated cost is )approximately) $362M (FY-83 dollars). Since 1983 both the superconducting magnet and the particle detector technologies have advanced and the countenance of physics, hence the desired characteristics of new facilities have also altered somewhat. We want to show here that with the new magnet technology used for the SSC one can construct a 3 TeV on 3 TeV pp collider on the Fermilab site. This pp Dedicated Collider )PPDC) will have a luminosity of about 10/sub 33/cm/sup )minus/2)sec)sup)minus)1) and a cost only )approximately) 50)percent) more than that of the p)bar p) Dedicated Collider. 3 figs

Teng, L.C.

1988-03-30T23:59:59.000Z

172

Coulomb interaction of acceptors in Cd{sub 1?x}Mn{sub x}Te/CdTe quantum dot  

SciTech Connect (OSTI)

The investigation on the effect of confining potential like isotropic harmonic oscillator type potential on the binding and the Coulomb interaction energy of the double acceptors in the presence of magnetic field in a Cd{sub 1?x}Mn{sub x}Te/CdTe Spherical Quantum Dot has been made for the Mn ion composition x=0.3 and compared with the results obtained from the square well type potential using variational procedure in the effective mass approximation.

Kalpana, P.; Nithiananthi, P., E-mail: kjkumar-gri@rediffmail.com; Jayakumar, K., E-mail: kjkumar-gri@rediffmail.com [Department of Physics, Gandhigram Rural University, Gandhigram-624302, TamilNadu (India); Reuben, A. Merwyn Jasper D. [Department of Physics, School of Engineering, Saveetha University, Thandalam, Chennai- 600104, TamilNadu (India)

2014-04-24T23:59:59.000Z

173

Three-dimensional graphene/LiFePO{sub 4} nanostructures as cathode materials for flexible lithium-ion batteries  

SciTech Connect (OSTI)

Graphical abstract: Graphene/LiFePO{sub 4} composites as a high-performance cathode material for flexible lithium-ion batteries have been prepared by using a co-precipitation method to synthesize graphene/LiFePO4 powders as precursors and then followed by a solvent evaporation process. - Highlights: Flexible LiFePO{sub 4}/graphene films were prepared first time by a solvent evaporation process. The flexible electrode exhibited a high discharge capacity without conductive additives. Graphene network offers the electrode adequate strength to withstand repeated flexing. - Abstract: Three-dimensional graphene/LiFePO{sub 4} nanostructures for flexible lithium-ion batteries were successfully prepared by solvent evaporation method. Structural characteristics of flexible electrodes were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscopy (SEM). Electrochemical performance of graphene/LiFePO{sub 4} was examined by a variety of electrochemical testing techniques. The graphene/LiFePO{sub 4} nanostructures showed high electrochemical properties and significant flexibility. The composites with low graphene content exhibited a high capacity of 163.7 mAh g{sup ?1} at 0.1 C and 114 mAh g{sup ?1} at 5 C without further incorporation of conductive agents.

Ding, Y.H., E-mail: yhding@xtu.edu.cn [College of Chemical Engineering, Xiangtan University, Hunan 411105 (China); Institute of Rheology Mechanics, Xiangtan University, Hunan 411105 (China); Ren, H.M. [Institute of Rheology Mechanics, Xiangtan University, Hunan 411105 (China); Huang, Y.Y. [BTR New Energy Materials Inc., Shenzhen 518000 (China); Chang, F.H.; Zhang, P. [Institute of Rheology Mechanics, Xiangtan University, Hunan 411105 (China)

2013-10-15T23:59:59.000Z

174

Effects of Cu Diffusion from ZnTe:Cu/Ti Contacts on Carrier Lifetime of CdS/CdTe Thin Film Solar Cells: Preprint  

SciTech Connect (OSTI)

We study the performance of CdS/CdTe thin film PV devices processed with a ZnTe:Cu/Ti contact to investigate how carrier lifetime in the CdTe layer is affected by Cu diffusion from the contact.

Gessert, T. A.; Metzger, W. K.; Asher, S. E.; Young, M. R.; Johnston, S.; Dhere, R. G.; Duda, A.

2008-05-01T23:59:59.000Z

175

Influence of EDTA{sup 2-} on the hydrothermal synthesis of CdTe nanocrystallites  

SciTech Connect (OSTI)

Transformation from Te nanorods to CdTe nanoparticles was achieved with the assistance of EDTA as a ligand under hydrothermal conditions. Experimental results showed that at the beginning of reaction Te nucleated and grew into nanorods. With the proceeding of reaction, CdTe nucleus began to emerge on the surface, especially on the tips of Te nanorods. Finally, nearly monodispersed hexagonal CdTe nanoparticles with diameters of about 200 nm were obtained. The effects of EDTA on the morphology and formation of CdTe nanoparticles were discussed in consideration of the strong ligand-effect of EDTA, which greatly decreased the concentration of Cd{sup 2+}. Furthermore, the possible formation process of CdTe nanoparticles from Te nanorods was further proposed. The crystal structure and morphology of the products were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). - Graphical Abstract: Firstly, Te nucleated and grew into nanorods in the presence of EDTA{sup 2-}. Then CdTe nucleus began to emerge on Te nanorods and finally monodispersed CdTe nanoparticles were obtained. Highlights: Black-Right-Pointing-Pointer EDTA serves as a strong ligand with Cd{sup 2+}. Black-Right-Pointing-Pointer The existence of EDTA constrains the nucleation of CdTe and promotes the formation of Te nanorods. Black-Right-Pointing-Pointer With the proceeding of reaction, CdTe nucleus began to emerge on the surface, especially on the tips of Te nanorods. Black-Right-Pointing-Pointer Nearly monodispersed hexagonal CdTe nanoparticles with diameters of about 200 nm were finally obtained.

Gong Haibo [Center of Bio and Micro/nano Functional Materials, State Key Lab of Crystal Materials, Shandong University, Jinan 250100 (China); School of Materials Science and Engineering, University of Jinan, Jinan 250022 (China); Hao Xiaopeng, E-mail: xphao@sdu.edu.cn [Center of Bio and Micro/nano Functional Materials, State Key Lab of Crystal Materials, Shandong University, Jinan 250100 (China); Wu Yongzhong [Center of Bio and Micro/nano Functional Materials, State Key Lab of Crystal Materials, Shandong University, Jinan 250100 (China); Cao Bingqiang; Xu Hongyan [School of Materials Science and Engineering, University of Jinan, Jinan 250022 (China); Xu Xiangang [Center of Bio and Micro/nano Functional Materials, State Key Lab of Crystal Materials, Shandong University, Jinan 250100 (China)

2011-12-15T23:59:59.000Z

176

Electrical Characterization of Cu Composition Effects in CdS/CdTe Thin-Film Solar Cells with a ZnTe:Cu Back Contact: Preprint  

SciTech Connect (OSTI)

We study the effects of Cu composition on the CdTe/ZnTe:Cu back contact and the bulk CdTe. For the back contact, its potential barrier decreases with Cu concentration while its saturation current density increases. For the bulk CdTe, the hole density increases with Cu concentration. We identify a Cu-related deep level at {approx}0.55 eV whose concentration is significant when the Cu concentration is high. The device performance, which initially increases with Cu concentration then decreases, reflects the interplay between the positive influences and negative influences (increasing deep levels in CdTe) of Cu.

Li, J. V.; Duenow, J. N.; Kuciauskas, D.; Kanevce, A.; Dhere, R. G.; Young, M. R.; Levi, D. H.

2012-07-01T23:59:59.000Z

177

Metallurgy, thermal stability, and failure mode of the commercial Bi-Te-based thermoelectric modules.  

SciTech Connect (OSTI)

Bi-Te-based thermoelectric (TE) alloys are excellent candidates for power generation modules. We are interested in reliable TE modules for long-term use at or below 200 C. It is known that the metallurgical characteristics of TE materials and of interconnect components affect the performance of TE modules. Thus, we have conducted an extensive scientific investigation of several commercial TE modules to determine whether they meet our technical requirements. Our main focus is on the metallurgy and thermal stability of (Bi,Sb){sup 2}(Te,Se){sup 3} TE compounds and of other materials used in TE modules in the temperature range between 25 C and 200 C. Our study confirms the material suite used in the construction of TE modules. The module consists of three major components: AlN cover plates; electrical interconnects; and the TE legs, P-doped (Bi{sub 8}Sb{sub 32})(Te{sub 60}) and N-doped (Bi{sub 37}Sb{sub 3})(Te{sub 56}Se{sub 4}). The interconnect assembly contains Sn (Sb {approx} 1wt%) solder, sandwiched between Cu conductor with Ni diffusion barriers on the outside. Potential failure modes of the TE modules in this temperature range were discovered and analyzed. The results show that the metallurgical characteristics of the alloys used in the P and N legs are stable up to 200 C. However, whole TE modules are thermally unstable at temperatures above 160 C, lower than the nominal melting point of the solder suggested by the manufacture. Two failure modes were observed when they were heated above 160 C: solder melting and flowing out of the interconnect assembly; and solder reacting with the TE leg, causing dimensional swelling of the TE legs. The reaction of the solder with the TE leg occurs as the lack of a nickel diffusion barrier on the side of the TE leg where the displaced solder and/or the preexisting solder beads is directly contact the TE material. This study concludes that the present TE modules are not suitable for long-term use at temperatures above 160 C due to the reactivity between the Sn-solder and the (Bi,Sb){sup 2}(Te,Se){sup 3} TE alloys. In order to deploy a reliable TE power generator for use at or below 200 C, alternate interconnect materials must be used and/or a modified module fabrication technique must be developed.

Yang, Nancy Y. C.; Morales, Alfredo Martin

2009-02-01T23:59:59.000Z

178

Effect of solvents on morphologies of PbTe nanostructures: Controllable synthesis of hollow and solid PbTe nanocubes by a solvothermal method  

SciTech Connect (OSTI)

We demonstrate a facile solvothermal route to grow hollow and solid PbTe nanocubes. The hollow PbTe nanocubes were successfully achieved when EtOH was used as solvent in the presence of nonionic polymer PEG, while the solid PbTe nanocubes were obtained when EG was used as solvent in the presence of PEG, whilst keeping the other experimental conditions constant. The results indicate that the solvents used in reaction system play a key role to determine the interior structure of PbTe nanocubes. On the basis of the experimental results and analysis, a possible growth mechanism has been discussed in detail for the hollow and solid PbTe nanocubes. - Graphical abstract: A facile solution-phase route has been developed to synthesize hollow and solid PbTe nanocubes. The possible growth mechanism of hollow and solid PbTe nanocubes was discussed in detail. Highlights: Black-Right-Pointing-Pointer A facile controllable route was described for hollow and solid PbTe nanocubes. Black-Right-Pointing-Pointer The hollow PbTe nanocubes were achieved using EtOH as solvent. Black-Right-Pointing-Pointer The solid PbTe nanocubes were obtained using EG as solvent. Black-Right-Pointing-Pointer The solvent played a key role for the formation of hollow and solid PbTe nanocubes.

Wang Wenzhong, E-mail: wzhwang@aphy.iphy.ac.cn [School of Science, Minzu University of China, Beijing 100081 (China); Wang Lijuan [School of Science, Minzu University of China, Beijing 100081 (China); Zhou Qing [College of Science, Guizhou University, Guiyang 550025 (China)

2012-04-15T23:59:59.000Z

179

Hadron supercolliders: The 1-TeV scale and beyond  

SciTech Connect (OSTI)

Greater understanding of the connection between the weak and electromagnetic interactions is central to progress in elementary-particle physics. A definitive exploration of the mechanism for electroweak symmetry breaking will require collisions between fundamental constituents at energies on the order of 1 TeV. This goal drives the design of high-energy, high-luminosity hadron colliders that will be commissioned during the next decade, but by no means completely defines their scientific potential. These three lectures are devoted to a review of the standard-model issues that motivated an experimental assault on the 1-TeV scale, an introduction to the machines and the experimental environment they will present, and a survey of possibilities for measurement and discovery with a multi-TeV hadron collider. 72 refs., 29 figs.

Quigg, C.

1990-08-10T23:59:59.000Z

180

The development of low cost LiFePO4-based high power lithium-ion batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

development of low cost LiFePO4-based high power lithium-ion batteries development of low cost LiFePO4-based high power lithium-ion batteries Title The development of low cost LiFePO4-based high power lithium-ion batteries Publication Type Journal Article Year of Publication 2005 Authors Striebel, Kathryn A., Joongpyo Shim, Azucena Sierra, Hui Yang, Xiangyun Song, Robert Kostecki, and Kathryn N. McCarthy Journal Journal of Power Sources Volume 146 Pagination 33-38 Keywords libob, lifepo4, lithium-ion, post-test, raman spectroscopy Abstract Pouch type LiFePO4-natural graphite lithium-ion cells were cycled at constant current with periodic pulse-power testing in several different configurations. Components were analyzed after cycling with electrochemical, Raman and TEM techniques to determine capacity fade mechanisms. The cells with carbon-coated current collectors in the cathode and LiBOB-salt electrolyte showed the best performance stability. In many cases, iron species were detected on the anodes removed from cells with both TEM and Raman spectroscopy. The LiFePO4 electrodes showed unchanged capacity suggesting that the iron is migrating in small quantities and is acting as a catalyst to destabilize the anode SEI in these cells.

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181

What causes high resistivity in CdTe  

SciTech Connect (OSTI)

Shallow donors are often introduced into semiconductor materials to enhance n-type conductivity. However, they can sometimes also be used to obtain compensation between donors and acceptors, resulting in high resistivity in semiconductors. For example, CdTe can be made semi-insulating by shallow donor doping. This is routinely done to obtain high resistivity in CdTe-based radiation detectors. However, it is widely believed that the shallow donor alone cannot be responsible for the high resistivity in CdTe. This is based on the argument that it is practically impossible to control the shallow donor doping level so precisely that the free carrier density can be brought below the desired value suitable for radiation detection applications. Therefore, a deep native donor is usually assumed to exist in CdTe and pin the Fermi level near midgap. In this paper, we present our calculations on carrier statistics and energetics of shallow donors and native defects in CdTe and illustrate different donor-specific mechanisms for achieving carrier compensation. Our results show that the shallow donor can be used to reliably obtain high resistivity in CdTe without requiring additional deep donors. Since radiation detection applications require both high resistivity and good carrier transport, one should generally use shallow donors and shallow acceptors for carrier compensation and avoid deep centers that are effective carrier traps. This study highlights how the interaction between impurities and native defects intricately affects the Fermi level pinning in the semiconductor band gap and the associated resistivity of the material.

Biswas, Koushik [ORNL; Du, Mao-Hua [ORNL

2012-01-01T23:59:59.000Z

182

Optically induced magnetic polarons in EuTe  

SciTech Connect (OSTI)

Direct measurements of the photoinduced magnetization in EuTe, using a two color pump-and-probe technique, are presented. The photoinduced effect was pumped using photons of above-the-bandgap energy, and detected by the Faraday rotation of a probe beam of energy below-the-bandgap. The photoinduced Faraday rotation changes sign, as expected from our model for the optically induced magnetic polaron. The EuTe spin-flop transition at low fields is also detected as a sharp step in the photoinduced Faraday rotation, and its observation provides additional supports for the photoinduced polaron model.

Henriques, A. B.; Galgano, G. D. [Instituto de Fsica, Universidade de So Paulo, Caixa Postal 66318, 05315-970, So Paulo (Brazil); Abramof, E.; Rappl, P. H. O. [LAS - INPE, Av. Dos Astronautas, 1758, 12227-010, So Jos dos Campos (Brazil)

2013-12-04T23:59:59.000Z

183

Precision Calibration of the NuTeV Calorimeter  

E-Print Network [OSTI]

NuTeV is a neutrino-nucleon deep-inelastic scattering experiment at Fermilab. The detector consists of an iron-scintillator sampling calorimeter interspersed with drift chambers, followed by a muon toroidal spectrometer. We present determinations of response and resolution functions of the NuTeV calorimeter for electrons, hadrons, and muons over an energy range of 4.8 to 190 GeV. The absolute hadronic energy scale is determined to an accuracy of 0.43%. We compare our measurements to predictions from calorimeter theory and GEANT3 simulations.

The NuTeV Collaboration; D. A. Harris; J. Yu

1999-08-20T23:59:59.000Z

184

Relativistic calculations of electronic states of TeH  

Science Journals Connector (OSTI)

Relativistic configuration interaction calculations of five ?? states [3/2 1/2 1/2(II) 3/2(II) 5/2] of TeH are carried out. Comparison calculations of the 2? and 4? ?s states are also carried out with the objective of understanding the effect of spinorbit interaction on the electronic states of TeH. These calculations enable assignment of some of the experimentally observed spectra. The 1/2(II) 3/2(II) and 5/2 states exhibit interesting avoided crossings.

K. Balasubramanian; Ming Han; M. Z. Liao

1987-01-01T23:59:59.000Z

185

Westinghouse P.O. Box 1970 Hanford COlTlpany Richland, Washington 99352  

Office of Scientific and Technical Information (OSTI)

Westinghouse P.O. Box 1970 Westinghouse P.O. Box 1970 Hanford COlTlpany Richland, Washington 99352 Hanford Operations and Engineering Contractor for the U S . Department of Energy under Contract DE-AC06-87RL10930 Approved for Public Release o-vrrorr 91: WHC-MR-0293 Revision 2 _-- Legend and Legacy: Fifty Years of Defense Production at the Hanford Site M. S. Gerber Date Published September 1992 Prepared for the U.S. Department of Energy Office of Environmental Restoration and Waste Manage men t 3 e f e r e n c e WHC-c: INFORMATION RELEASE REEUEST IN 0 Y 3s % - a - - Referencas Available to I n t e n d e d Audience T r a n s m i t to 00E-HQIOffice o f Scienofic and Tacnnical l n f o r m a a o n x u AurhorlRsquestor (PnnredlSignarure) $ & rnS*G&Gec #/L+ f2 lntenaed Audience u a Internal Sponsor s x t e r n

186

Balloon-borne hard X-ray polarimetry with PoGOLite  

E-Print Network [OSTI]

PoGOLite is a hard X-ray polarimeter operating in the 25-100 keV energy band. The instrument design is optimised for the observation of compact astrophysical sources. Observations are conducted from a stabilised stratospheric balloon platform at an altitude of approximately 40 km. The primary targets for first balloon flights of a reduced effective area instrument are the Crab and Cygnus-X1. The polarisation of incoming photons is determined using coincident Compton scattering and photo-absorption events reconstructed in an array of plastic scintillator detector cells surrounded by a bismuth germanate oxide (BGO) side anticoincidence shield and a polyethylene neutron shield. A custom attitude control system keeps the polarimeter field-of-view aligned to targets of interest, compensating for sidereal motion and perturbations such as torsional forces in the balloon rigging. An overview of the PoGOLite project is presented and the outcome of the ill-fated maiden balloon flight is discussed.

,

2012-01-01T23:59:59.000Z

187

Structures of {sup 201}Po and {sup 205}Rn from EC/{beta}{sup +}-decay studies  

SciTech Connect (OSTI)

Several low-lying excited states in {sub 86}{sup 205}Rn{sub 119} and {sub 84}{sup 201}Po{sub 117} were identified for the first time following EC/{beta}{sup +} decay of {sup 205}Fr and {sup 201}At, respectively, using {gamma}-ray and conversion electron spectroscopy at the CERN isotope separator on-line (ISOLDE) facility. The EC/{beta}{sup +} branch from {sup 205}Fr was measured to be 1.5(2)%. The excited states of the daughter nuclei are understood in terms of the odd nucleon coupling to the neighboring even-even core. The neutron single-particle energies of the p{sub 3/2} orbital relative to the f{sub 5/2} ground state in {sup 205}Rn, and the f{sub 5/2} orbital relative to the p{sub 3/2} ground state in {sup 201}Po, were determined to be 31.4(2) and 5.7(3) keV, respectively. We tentatively identify a (13/2){sup +} isomeric level at 657.1(5) keV in {sup 205}Rn. The systematic behavior of the (13/2){sup +} and (3/2){sup -} levels is also discussed.

Deo, A. Y.; Podolyak, Zs.; Walker, P. M.; Farrelly, G.; Gelletly, W. [Department of Physics, University of Surrey, Guildford GU2 7XH (United Kingdom); Algora, A. [IFIC, CSIC - Universidad de Valencia, E-46071 (Spain); Institute of Nuclear Research of the Hungarian Academy of Sciences, Debrecen, H-4001 (Hungary); Rubio, B.; Agramunt, J.; Estevez, E. [IFIC, CSIC - Universidad de Valencia, E-46071 (Spain); Fraile, L. M. [Grupo de Fisica Nuclear, Facultad CC. Fisicas, Universidad Complutense, E-28040 Madrid (Spain); Al-Dahan, N. [Department of Physics, University of Surrey, Guildford GU2 7XH (United Kingdom); Department of Physics, University of Kerbala, Kerbala (Iraq); Alkhomashi, N. [Department of Physics, University of Surrey, Guildford GU2 7XH (United Kingdom); KACST, P.O. Box 6086, Riyadh 11442 (Saudi Arabia); Briz, J. A.; Maira, A. [Instituto de Estructura de la Materia, CSIC, E-28006 Madrid (Spain); Herlert, A. [ISOLDE, PH Department, CERN, CH-1211 Geneva (Switzerland); Koester, U. [Institut Laue Langevin, 6 rue Jules Horowitz, F-38042 Grenoble Cedex 9 (France); Singla, S. [Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110 016 (India)

2010-02-15T23:59:59.000Z

188

Combustion Synthesis of Nanoparticulate LiMgxMn1-xPO4 (x=0, 0.1, 0.2) Carbon Composites  

E-Print Network [OSTI]

for Rechargeable Lithium Batteries. J. Electrochem. Soc.Materials for Lithium Batteries. J. Electrochem. Soc. 148,LiMnPO 4 for Lithium Ion Batteries. Electrochem. and Solid

Doeff, Marca M

2010-01-01T23:59:59.000Z

189

PRECONTACT SURFACE CHEMISTRY EFFECTS ON CdWCdTe SOLAR CELL PERFORMANCE AND STABILITY  

E-Print Network [OSTI]

PRECONTACT SURFACE CHEMISTRY EFFECTS ON CdWCdTe SOLAR CELL PERFORMANCE AND STABILITY Dave Albin (CBD) and close spaced sublimation (CSS) respectively. CdTe growth is followed by either solution

Sites, James R.

190

Impurity and back contact effects on CdTe/CdS thin film solar cells.  

E-Print Network [OSTI]

??CdTe/CdS thin film solar cells are the most promising cost-effective solar cells. The goal of this project is to improve the performance for CdS/CdTe devices (more)

Zhao, Hehong

2008-01-01T23:59:59.000Z

191

Resonant Level Enhancement of the Thermoelectric Power of Bi2Te3...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Power of Bi2Te3 with Tin Application to practical p-type thermoelectric tin alloys for heat pumps. heremans.pdf More Documents & Publications The tin impurity in Bi0.5Sb1.5Te3...

192

Pressure-induced Phase Transition in Thiol-capped CdTe Nanoparticles  

SciTech Connect (OSTI)

Phase transitions for CdTe nanoparticles (NPs) under high pressure up to 37.0 GPa have been studied using fluorescence measurements. The phase transition from cinnarbar to rocksalt phase has been observed in CdTe NPs solution at 5.8 GPa, which is much higher than the phase transition pressure of bulk CdTe (3.8 GPa) and that of CdTe NPs in solid form (0.8 GPa). CdTe NPs solution therefore shows elevated phase transition pressure and enhanced stability against pressure compared with bulk CdTe and CdTe NPs in solid forms. The enhanced stability of CdTe NPs solution has been attributed to possible shape change in the phase transition and/or inhomogeneous strains in nanoparticle solutions.

Wu, F; Zaug, J; Young, C; Zhang, J Z

2006-11-29T23:59:59.000Z

193

Ligand Mediated Surface Reconstruction of Photoluminescent CdTe Quantum Dots.  

E-Print Network [OSTI]

??Enhancement of photoluminescence (PL) is observed for light-shielded dodecylamine-capped colloidal CdTe quantum dots (CdTe/DDA QDs) dispersed in toluene after washing and recapping. The PL quantum (more)

Onnink, A.J.

2013-01-01T23:59:59.000Z

194

Development of Materials and Structures for p-type Contacts in CdTe Solar Cells.  

E-Print Network [OSTI]

??Solar cells based on CdTe absorbers are attractive due to the optimal direct band gap energy and large absorption coefficient of CdTe, however, their performance (more)

Ferizovic, Dino

2012-01-01T23:59:59.000Z

195

WAVELENGTH DEPENDENT EFFECTIVE TRAP DENSITY IN CdTe : EVIDENCE FOR THE PRESENCE OF TWO  

E-Print Network [OSTI]

1 WAVELENGTH DEPENDENT EFFECTIVE TRAP DENSITY IN CdTe : EVIDENCE FOR THE PRESENCE OF TWO.1016/S0030-4018(96)00516-0 #12;2 Photorefractive semiconductors like CdTe are characterized by a low

196

Change in the current-carrier concentration upon doping PbTe with gallium  

SciTech Connect (OSTI)

Upon doping PbTe with gallium, both high-resistivity samples with intrinsic conductivity and low-resistivity samples with electronic conductivity (n/sub e/ = 10/sup 18/ cm/sup -3/) are produced on the PbTe-GaTe section. A thorough investigation of the dependence of the thermo-emf of Pb/sub 1-x/Ga/sub x/Te on the excess Pb and Te side showed the presence of a wide region with intrinsic conductivity. The experimental data can be explained by the fact that impure gallium in PbTe has negative Hubbard energy and stabilizes the Fermi level almost at the center of the forbidden band. At high gallium concentrations, Ga/sub 2/Te/sub 3/ precipitates at first, and then GaTe precipitates as well. The lead forming in excess transforms Ga/sup 3 +/ to Ga/sup +/, which produces the electronic conductivity in the material.

Bushmarina, G.S.; Gruzinov, B.F.; Drabkin, I.A.; Lev, E.Ya.; Moizhes, B.Ya; Suprun, S.G.

1987-07-01T23:59:59.000Z

197

Junction Evolution During Fabrication of CdS/CdTe Thin-film PV Solar Cells (Presentation)  

SciTech Connect (OSTI)

Discussion of the formation of CdTe thin-film PV junctions and optimization of CdTe thin-film PV solar cells.

Gessert, T. A.

2010-09-01T23:59:59.000Z

198

1. INTRODUCTION CdTe/CdS solar cells are among the most promising  

E-Print Network [OSTI]

Te/CdS SOLAR CELLS A.Romeo, A.N. Tiwari, and H. Zogg Thin Films Physics Group, Institute of Quantum ElectronicsTe/CdS thin film solar cells. The merits of different TCOs and the properties of the CdTe/CdS solar cells1. INTRODUCTION CdTe/CdS solar cells are among the most promising devices for low cost and high

Romeo, Alessandro

199

Detector Performance of Ammonium-Sulfide-Passivated CdZnTe and CdMnTe Materials  

SciTech Connect (OSTI)

Dark currents, including those in the surface and bulk, are the leading source of electronic noise in X-ray and gamma detectors, and are responsible for degrading a detector's energy resolution. The detector material itself determines the bulk leakage current; however, the surface leakage current is controllable by depositing appropriate passivation layers. In previous research, we demonstrated the effectiveness of surface passivation in CZT (CdZnTe) and CMT (CdMnTe) materials using ammonium sulfide and ammonium fluoride. In this research, we measured the effect of such passivation on the surface states of these materials, and on the performances of detectors made from them.

Kim, K.H.; Bolotnikov, A.E.; Camarda, G.S.; Marchini, L.; Yang, G.; Hossain, A.; Cui, Y.; Xu, L.; and James, R.B.

2010-08-01T23:59:59.000Z

200

Nanoscale Imaging of Photocurrent and Efficiency in CdTe Solar Cells  

Science Journals Connector (OSTI)

Nanoscale Imaging of Photocurrent and Efficiency in CdTe Solar Cells ... The local collection characteristics of grain interiors and grain boundaries in thin-film CdTe polycrystalline solar cells are investigated using scanning photocurrent microscopy. ... photovoltaics; CdTe; scanning photocurrent microscopy; solar cells; NSOM ...

Marina S. Leite; Maxim Abashin; Henri J. Lezec; Anthony Gianfrancesco; A. Alec Talin; Nikolai B. Zhitenev

2014-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

Carbon Sequestration in Terrestrial Ecosystems (CSiTE) PRINCIPAL INVESTIGATOR: Stan D. Wullschleger  

E-Print Network [OSTI]

Carbon Sequestration in Terrestrial Ecosystems (CSiTE) PRINCIPAL INVESTIGATOR: Stan D. Wullschleger://csite.eds.ornl.gov PROJECT DESCRIPTION The Carbon Sequestration in Terrestrial Ecosystems (CSiTE) project conducts research of switchgrass growing in the field. #12;Carbon Sequestration in Terrestrial Ecosystems (CSiTE) tion of inputs

202

NREL study may provide future guidance in improving CdS/CdTe photovoltaic device performance.  

E-Print Network [OSTI]

NREL study may provide future guidance in improving CdS/CdTe photovoltaic device performance. The majority of minority carrier lifetime (MCL) studies performed on CdS/CdTe photovoltaic (PV) devices have Carrier Lifetime Measurements in Superstrate and Substrate CdTe PV Devices." Proc. 37th IEEE Photovoltaic

203

Low temperature growth of ZnTe by synchroton radiation using metalorganic sources  

Science Journals Connector (OSTI)

The use of synchrotron radiation to convert diethylzinc and diethyltelluride molecules into ZnTe has been employed for ZnTe growth. The formation of ZnTe epitaxial layer on (100) oriented GaAs substrate at room temperature is experimentally demonstrated. It is shown by x?ray photoelectron spectroscopy that no carbon is included in the film. ?

Makoto Ikejiri; Toshihiro Ogata; Hiroshi Ogawa; Mitsuhiro Nishio; Akira Yoshida

1994-01-01T23:59:59.000Z

204

Solar Energy Materials & Solar Cells 91 (2007) 13881391 Bifacial configurations for CdTe solar cells  

E-Print Network [OSTI]

Solar Energy Materials & Solar Cells 91 (2007) 1388­1391 Bifacial configurations for CdTe solar We present a different back contact for CdTe solar cell by the application of only a transparent that acts as a free-Cu stable back contact and at the same time allows to realize bifacial CdTe solar cells

Romeo, Alessandro

205

PHOTOSCANNING OF CdTe DETECTORS FOR INVESTIGATION OF CRYSTAL QUALITY  

E-Print Network [OSTI]

349 PHOTOSCANNING OF CdTe DETECTORS FOR INVESTIGATION OF CRYSTAL QUALITY AND CONTACT BEHAVIOUR P. A. Preliminary results are reported on light scanning of CdTe detectors with a mechanical scanning system using is absorbed in CdTe with an absorption length of appro- ximately 10 gm. The two mirrors were driven

Paris-Sud XI, Université de

206

Optical implementation of entangled multi-spin states in a CdTe quantum well  

E-Print Network [OSTI]

Optical implementation of entangled multi-spin states in a CdTe quantum well J.M. Baoa , A in a CdTe quantum well. Our method, relying on the exchange interaction between optically excited holes; 78.67.De; 42.50.Md Keywords: A. CdTe quantum wells; D. Ultrafast optics; D. Quantum computation; D

Bao, Jiming

207

Structural tuning of color chromaticity through nonradiative energy transfer by interspacing CdTe nanocrystal monolayers  

E-Print Network [OSTI]

Structural tuning of color chromaticity through nonradiative energy transfer by interspacing CdTe transfer in the heterostructure of layer-by-layer spaced CdTe nanocrystal NC solids. We achieved highly demonstrated efficient FRET in LbL assembled bilayers of CdTe NCs. In another structure, alternating layers

Demir, Hilmi Volkan

208

USE OF VARIOUS DEVICE GEOMETRIES TO IMPROVE THE PERFORMANCE OF CdTe DETECTORS (*)  

E-Print Network [OSTI]

343 USE OF VARIOUS DEVICE GEOMETRIES TO IMPROVE THE PERFORMANCE OF CdTe DETECTORS (*) K. ZANIO. - The most direct method of increasing the resolution of CdTe gamma ray and x-ray detectors is to increase of Environmental and Biomedical Research. doped CdTe. Devices do not polarize as those having blocking contacts

Paris-Sud XI, Université de

209

NUMERICAL MODELING OF CIGS AND CdTe SOLAR CELLS: SETTING THE BASELINE  

E-Print Network [OSTI]

NUMERICAL MODELING OF CIGS AND CdTe SOLAR CELLS: SETTING THE BASELINE M. Gloeckler, A. Consequently specific baseline parameters for CIGS and CdTe are proposed. The modeling results important complications that are often found in experimental CIGS and CdTe solar cells. 1. INTRODUCTION

Sites, James R.

210

USE OF CdTe DETECTORS IN BONE MINERAL MEASUREMENTS J. VOGEL, J. ULLMAN  

E-Print Network [OSTI]

375 USE OF CdTe DETECTORS IN BONE MINERAL MEASUREMENTS J. VOGEL, J. ULLMAN Nuclear Medicine. Cet ensemble emploie des détecteurs CdTe mesurant la transmission d'un faisceau collimaté de rayons X periods of prolonged bedrest or weightlessness. The unit employs CdTe detectors to mea- sure

Paris-Sud XI, Université de

211

Nonresonant four-wave mixing in photorefractive CdTe crystals using a picosecond parametric generator  

E-Print Network [OSTI]

Nonresonant four-wave mixing in photorefractive CdTe crystals using a picosecond parametric at nonresonant interaction, thus allowing a study of time-resolved carrier transport in CdTe crystals to be made space-charge SC electric fields have been studied in vanadium or germanium doped semi-insulating CdTe

Boyer, Edmond

212

IMPROVEMENTS IN THE MANUFACTURE OF CdTe GAMMA RAY DETECTORS  

E-Print Network [OSTI]

141 IMPROVEMENTS IN THE MANUFACTURE OF CdTe GAMMA RAY DETECTORS S. BRELANT The Aerospace been made in the quality of chlorine-doped CdTe crystals manufactured by the traveling heater method applications of CdTe gamma ray detectors has been the continuous measurement of ablating materials

Paris-Sud XI, Université de

213

CRYSTAL GROWTH BY SOLVENT TECHNIQUES AND CHARACTERISTIC PROPERTIES OF CdTe  

E-Print Network [OSTI]

117 CRYSTAL GROWTH BY SOLVENT TECHNIQUES AND CHARACTERISTIC PROPERTIES OF CdTe T. TAGUCHI, J and holes are obtained. REVUE DE PHYSIQUE APPLIQU?E TOME 12, F?VRIER 1977, PAGE 117 1. Introduction. - CdTe during donor doping since CdTe has a strong tendency for self compensation However, in spite of a great

Paris-Sud XI, Université de

214

APPLICATIONS OF CdTe. A REVIEW Mobil Tyco Solar Energy Corporation, 16 Hickory Drive  

E-Print Network [OSTI]

APPLICATIONS OF CdTe. A REVIEW F. V. WALD Mobil Tyco Solar Energy Corporation, 16 Hickory Drive sont également données. Abstract. 2014 The review considers the history of CdTe in short form advanced. II. APPLICATIONS OF CADMIUM TELLURIDE AND DEVICES BASED ON THIS MATERIAL. Section II. 1 : CdTe

Paris-Sud XI, Université de

215

CHARACTERIZATION OF CdTe WITH PHOTOELECTRONIC TECHNIQUES A. M. MANCINI and C. MANFREDOTTI  

E-Print Network [OSTI]

255 CHARACTERIZATION OF CdTe WITH PHOTOELECTRONIC TECHNIQUES A. M. MANCINI and C. MANFREDOTTI seront discutés dans le cas où elles sont mises en 0153uvre sur CdTe. Abstract. 2014 Thermally stimulated current (TSC) and space-charge limited current (SCLC) measurements have been performed in CdTe grown

Paris-Sud XI, Université de

216

BIOTELEMETRY BASED ON CdTe-DETECTORS J. BOJSEN, N. ROSSING, O. SOEBERG and S. VADSTRUP  

E-Print Network [OSTI]

radionuclide detectors (CdTe) 2-3 mm3 (developed by C. R. N. Strasbourg) have been tested with special to the skin for surface detection [2, 3]. Among several new semiconductor materials the cadmium telluride (CdTe. - The detector probe, developed by C. R. N., Strasbourg, France, consists of a CdTe- crystal (2-3 mm

Paris-Sud XI, Université de

217

EFFECT OF BACK-CONTACT COPPER CONCENTRATION ON CdTe CELL OPERATION  

E-Print Network [OSTI]

EFFECT OF BACK-CONTACT COPPER CONCENTRATION ON CdTe CELL OPERATION A.O. Pudov, M. Gloeckler, S of Mechanical Engineering Colorado State University, Ft. Collins, CO 80523 ABSTRACT CdTe solar cells were Copper is commonly used to form low-barrier contacts to p-type CdTe absorbers. Copper, however, is a fast

Sites, James R.

218

CHARACTERIZATION OF UNDOPED HIGH RESISTIVITY CdTe GROWN BY A THM METHOD  

E-Print Network [OSTI]

185 CHARACTERIZATION OF UNDOPED HIGH RESISTIVITY CdTe GROWN BY A THM METHOD R. STUCK, J. C. MULLER techniques of cadmium tellu- ride crystals (CdTe) allowed to obtain high resistivity crystals of detector shape of the phase diagram of CdTe, it seemed interesting to characterize these materials in order

Paris-Sud XI, Université de

219

Exploring the Potential for High-Quality Epitaxial CdTe Solar Cells , Ana Kanevce2  

E-Print Network [OSTI]

Exploring the Potential for High-Quality Epitaxial CdTe Solar Cells Tao Song1 , Ana Kanevce2 National Renewable Energy Laboratory, Golden, CO, 80401, USA Abstract -- Traditional polycrystalline CdTeV and ~ 20%. Epitaxial CdTe with high-quality, low defect-density, and high carrier density, could yield

Sites, James R.

220

Biaxial CdTe/CaF2 films growth on amorphous surface , F. Tang a  

E-Print Network [OSTI]

electron microscopy Metal organic chemical vapor deposition A continuous and highly biaxially textured CdTe nanorods as a buffer layer. The interface between the CdTe film and CaF2 nanorods and the morphology of the CdTe film were studied by transmission electron microscopy (TEM) and scanning electron microscopy

Wang, Gwo-Ching

Note: This page contains sample records for the topic "te po lv" 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

DISSERTATION ELECTRON-REFLECTOR STRATEGY FOR CdTe THIN-FILM SOLAR CELLS  

E-Print Network [OSTI]

DISSERTATION ELECTRON-REFLECTOR STRATEGY FOR CdTe THIN-FILM SOLAR CELLS Submitted by Kuo-Jui Hsiao ELECTRON- REFLECTOR STRATEGY FOR CdTe THIN-FILM SOLAR CELLS BE ACCEPTED AS FULFILLING IN PART REQUIREMENTS SOLAR CELLS The CdTe thin-film solar cell has a large absorption coefficient and high theoretical

Sites, James R.

222

Trace formula for dielectric cavities III: TE modes  

E-Print Network [OSTI]

The construction of the semiclassical trace formula for the resonances with the transverse electric (TE) polarization for two-dimensional dielectric cavities is discussed. Special attention is given to the derivation of the two first terms of Weyl's series for the average number of such resonances. The obtained formulas agree well with numerical calculations for dielectric cavities of different shapes.

E. Bogomolny; R. Dubertrand

2012-06-15T23:59:59.000Z

223

STAFF POSITION DESCRIPTION SAN JOSE STA TE HUMAN RESOURCES  

E-Print Network [OSTI]

STAFF POSITION DESCRIPTION SAN JOSE STA TE HUMAN RESOURCES UNIVERSITY Workforce Planning l: 408-924-2250 I408-924-1784 (fax) Job Description Staff Date: Workforce Planning, Human Resources (Name [Workforce Planning reviews the CSU classification standards with essential duties of the positions] F

Su, Xiao

224

Results of a Si/CdTe Compton Telescope  

E-Print Network [OSTI]

We have been developing a semiconductor Compton telescope to explore the universe in the energy band from several tens of keV to a few MeV. We use a Si strip and CdTe pixel detector for the Compton telescope to cover an energy range from 60 keV. For energies above several hundred keV, the higher efficiency of CdTe semiconductor in comparison with Si is expected to play an important role as an absorber and a scatterer. In order to demonstrate the spectral and imaging capability of a CdTe-based Compton Telescope, we have developed a Compton telescope consisting of a stack of CdTe pixel detectors as a small scale prototype. With this prototype, we succeeded in reconstructing images and spectra by solving the Compton equation from 122 keV to 662 keV. The energy resolution (FWHM) of reconstructed spectra is 7.3 keV at 511 keV and 3.1 keV at 122 keV, respectively. The angular resolution obtained at 511 keV is measured to be 12.2 degree (FWHM).

Kousuke Oonuki; Takaaki Tanaka; Shin Watanabe; Shin'ichiro Takeda; Kazuhiro Nakazawa; Takefumi Mitani; Tadayuki Takahashi; Hiroyasu Tajima; Yasushi Fukazawa; Masaharu Nomachi

2005-09-21T23:59:59.000Z

225

Ion-beam-induced damage formation in CdTe  

SciTech Connect (OSTI)

Damage formation in <111>- and <112>-oriented CdTe single crystals irradiated at room temperature and 15 K with 270 keV Ar or 730 keV Sb ions was investigated in situ using Rutherford backscattering spectroscopy (RBS) in channeling configuration. Defect profiles were calculated from the RBS spectra using the computer code DICADA and additional energy-dependent RBS measurements were performed to identify the type of defects. At both temperatures no formation of a buried amorphous layer was detected even after prolonged irradiation with several 10{sup 16} ions/cm{sup 2}. The fact that CdTe is not rendered amorphous even at 15 K suggests that the high resistance to amorphization is caused by the high ionicity of CdTe rather than thermal effects. The calculated defect profiles show the formation of a broad defect distribution that extends much deeper into the crystal than the projected range of the implanted ions at both temperatures. The post-range defects in CdTe thus do not seem to be of thermal origin either, but are instead believed to result from migration driven by the electronic energy loss.

Rischau, C. W.; Schnohr, C. S.; Wendler, E.; Wesch, W. [Institut fuer Festkoerperphysik, Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz 1, D-07743 Jena (Germany)

2011-06-01T23:59:59.000Z

226

Diffuse TeV Emission at the Galactic Centre  

E-Print Network [OSTI]

The High-Energy Stereoscopic System (HESS) has detected intense diffuse TeV emission correlated with the distribution of molecular gas along the galactic ridge at the centre of our Galaxy. Earlier HESS observations of this region had already revealed the presence of several point sources at these energies, one of them (HESS J1745-290) coincident with the supermassive black hole Sagittarius A*. It is still not entirely clear what the origin of the TeV emission is, nor even whether it is due to hadronic or leptonic interactions. It is reasonable to suppose, however, that at least for the diffuse emission, the tight correlation of the intensity distribution with the molecular gas indicates a pionic-decay process involving relativistic protons. In this paper, we explore the possible source(s) of energetic hadrons at the galactic centre, and their propagation through a turbulent medium. We conclude that though Sagittarius A* itself may be the source of cosmic rays producing the emission in HESS J1745-290, it cannot be responsible for the diffuse emission farther out. A distribution of point sources, such as pulsar wind nebulae dispersed along the galactic plane, similarly do not produce a TeV emission profile consistent with the HESS map. We conclude that only a relativistic proton distribution accelerated throughout the inter-cloud medium can account for the TeV emission profile measured with HESS.

Elizabeth Wommer; Fulvio Melia; Marco Fatuzzo

2008-04-18T23:59:59.000Z

227

TheerbInsTITuTeSectionname The Erb Institute  

E-Print Network [OSTI]

Conservation & Policy 17 Green Markets 20 Entrepreneurship 24 Corporate Sustainability & Public Policy 27 [ ]Year in Review 2012 #12;ii TheerbInsTITuTeSectionname Social Enterprise 4 Local Impact 7 Energy 10 Education 31 Climate Change & Communication 34 The Erb Institute for Global Sustainable Enterprise Erb Inst

Edwards, Paul N.

228

TeV Particle Astrophysics II: Summary comments  

E-Print Network [OSTI]

A unifying theme of this conference was the use of different approaches to understand astrophysical sources of energetic particles in the TeV range and above. In this summary I review how gamma-ray astronomy, neutrino astronomy and (to some extent) gravitational wave astronomy provide complementary avenues to understanding the origin and role of high-energy particles in energetic astrophysical sources.

Thomas K. Gaisser

2006-12-11T23:59:59.000Z

229

Carrier dynamics and activation energy of CdTe quantum dots in a Cd{sub x}Zn{sub 1-x}Te quantum well  

SciTech Connect (OSTI)

We investigate the optical properties of CdTe quantum dots (QDs) in a Cd{sub 0.3}Zn{sub 0.7}Te quantum well (QW) grown on GaAs (100) substrates. Carrier dynamics of CdTe/ZnTe QDs and quantum dots-in-a-well (DWELL) structure is studied using time-resolved photoluminescence (PL) measurements, which show the longer exciton lifetime of the DWELL structure. The activation energy of the electrons confined in the DWELL structure, as obtained from the temperature-dependent PL spectra, was also higher than that of electrons confined in the CdTe/ZnTe QDs. This behavior is attributed to the better capture of carriers into QDs within the surrounding QW.

Han, W. I.; Lee, J. H.; Yu, J. S.; Choi, J. C. [Department of Physics, Yonsei University, Wonju 220-710 (Korea, Republic of); Lee, H. S. [Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Gwangju 500-712 (Korea, Republic of)

2011-12-05T23:59:59.000Z

230

Exploring Resonance Levels and Nanostructuring in the PbTe?CdTe System and Enhancement of the Thermoelectric Figure of Merit  

SciTech Connect (OSTI)

We explored the effect of Cd substitution on the thermoelectric properties of PbTe in an effort to test a theoretical hypothesis that Cd atoms on Pb sites of the rock salt lattice can increase the Seebeck coefficient via the formation of a resonance level in the density of states near the Fermi energy. We find that the solubility of Cd is less than previously reported, and CdTe precipitation occurs to create nanostructuring, which strongly suppresses the lattice thermal conductivity. We present detailed characterization including structural and spectroscopic data, transmission electron microscopy, and thermoelectric transport properties of samples of PbTe?x% CdTe?0.055% PbI{sub 2} (x = 1, 3, 5, 7, 10), PbTe?1% CdTe?y% PbI{sub 2} (y = 0.03, 0.045, 0.055, 0.08, 0.1, 0.2), PbTe?5% CdTe?y% PbI{sub 2} (y = 0.01, 0.03, 0.055, 0.08), and PbTe?1% CdTe?z% Sb (z = 0.3, 0.5, 1, 1.5, 2, 3, 4, 5, 6). All samples follow the Pisarenko relationship, and no enhancement of the Seebeck coefficient was observed that could be attributed to a resonance level or a distortion in the density of states. A maximum ZT of 1.2 at 720 K was achieved for the PbTe?1% CdTe?0.055% PbI{sub 2} sample arising from a high power factor of 17 ?W/(cm K{sup 2}) and a very low lattice thermal conductivity of 0.5 W/(m K) at 720 K.

Ahn, Kyunghan; Han, Mi-Kyung; He, Jiaqing; Androulakis, John; Ballikaya, Sedat; Uher, Ctirad; Dravid, Vinayak; Kanatzidis, Mercouri G.

2010-01-01T23:59:59.000Z

231

Center for Integrated Solutions to Climate Challenges, Arizona State University, PO Box 878009, Tempe AZ 85287-8009 Department of Computer Science, University of Kaiserslautern, PO Box 3049, 67653 Kaiserslautern, Germany  

E-Print Network [OSTI]

, Grant 1131) as part of the International Graduate School (IRTG 1131) at University of Kaiserslautern, Tempe AZ 85287-8009 2 Department of Computer Science, University of Kaiserslautern, PO Box 3049, 67653. Sonoran Arroyo Mall, Mesa AZ 85212 4 School of Geographical Sciences and Urban Planning, Arizona State

Hall, Sharon J.

232

Pacific Northwest Site Office P.O. BOX 350, Kg-42  

Broader source: Energy.gov (indexed) [DOE]

Pacific Northwest Site Office Pacific Northwest Site Office P.O. BOX 350, Kg-42 Richland, Washington 99352 JAN 1 8 2019 MEMORANDUM FOR SCOTT B. HARRIS, GENERAL COUNSEL OFFICE OF GENERAL COUNSEL FROM: SUBJECT: GC- I , HQ JULIE K. ERlCKSON PACIFIC NORTHWEST SITE OFFICE 20 1 1 ANNUAL NATIONAL ENVIRONMENTAL POLICY ACT (NEPA) PLANNING SUMMARY DOE 0 45 1.1B requires Secretarial Officers and Heads of Field Organizations to submit a Annual NEPA Planning Summary to the Office of General Counsel. We have consulted your December 8,201 0, memorandum, and guidance posted on the Office of NEPA Policy and Compliailce (GC-54) web site, and have no NEPA activities to report. If you have any questions, please contact me, or your staff may contact Theresa Aldridge, Operations Division, at (509) 372-4508, or Peter Siebach, Integrated Support Center - Chicago

233

TRI-STATE GENERATION AND TRANSMISSION ASSOCIATION, INC. HEADQUARTERS: P.O  

Broader source: Energy.gov (indexed) [DOE]

TRI-STATE GENERATION AND TRANSMISSION ASSOCIATION, INC. TRI-STATE GENERATION AND TRANSMISSION ASSOCIATION, INC. HEADQUARTERS: P.O . BOX 33695 DENVER, COLORADO 80233-0695 October 31, 2013 Ms. Julie A. Smith and Mr. Christopher Lawrence Office of Electricity Delivery and Energy Reliability (OE-20) U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 Submitted electronically via email to : juliea.smith@hq.doe.gov and christopher.lawrence@hq.doe.gov 303-452-6111 Re: Department of Energy-Improving Performance of Federal Permitting and Review of Infrastructure Projects, Request for Information, 78 Fed. Reg. 53436 (Aug. 29, 2013) Dear Ms. Smith and Mr. Lawrence: Tri-State Generation and Transmission Assoc. , Inc. (Tri-State) appreciates the opportunity to provide comments regarding the proposed draft Integrated Interagency Pre-

234

Low-temperature structural phase transition in synthetic libethenite Cu2PO4OH  

Science Journals Connector (OSTI)

Low-temperature structural properties of the synthetic mineral libethenite Cu2PO4OH were investigated by single-crystal X-ray diffraction, synchrotron X-ray powder diffraction, specific heat measurements, and Raman spectroscopy. A second-order structural phase transition from the Pnnm symmetry (a=8.0553(8), b=8.3750(9), c=5.8818(6) at 180K) to the P21/n symmetry (a=8.0545(8), b=8.3622(9), c=5.8755(6), ?=90.0012(15) at 120K) was found at 160K during cooling. At 120K, the monoclinic angle is 90.0012(15) from single crystal X-ray data vs 90.083(1) from powder X-ray diffraction data. The P21/ntoPnnm transition may be a general feature of the adamite-type compounds, M2XO4OH.

Alexei A. Belik; Pan?e Naumov; Jungeun Kim; Shunsuke Tsuda

2011-01-01T23:59:59.000Z

235

Complete genome sequence of Marinomonas posidonica type strain (IVIA-Po-181T)  

SciTech Connect (OSTI)

Marinomonas posidonica IVIA-Po-181T Lucas-Eli o et al. 2011 belongs to the family Oceanospirillaceae within the phylum Proteobacteria. Different species of the genus Marinomonas can be readily isolated from the seagrass Posidonia oceanica. M. posidonica is among the most abundant species of the genus detected in the cultured microbiota of P. oceanica, suggesting a close relationship with this plant, which has a great ecological value in the Mediterranean Sea, covering an estimated surface of 38,000 Km2. Here we describe the genomic features of M. posidonica. The 3,899,940 bp long genome harbors 3,544 pro- tein-coding genes and 107 RNA genes and is a part of the Genomic Encyclopedia of Bacteria and Archaea project.

Lucas-Elio, Patricia [University of Murcia, Murcia, Spain; Goodwin, Lynne A. [Los Alamos National Laboratory (LANL); Woyke, Tanja [U.S. Department of Energy, Joint Genome Institute; Pitluck, Sam [U.S. Department of Energy, Joint Genome Institute; Nolan, Matt [U.S. Department of Energy, Joint Genome Institute; Kyrpides, Nikos C [U.S. Department of Energy, Joint Genome Institute; Detter, J C [U.S. Department of Energy, Joint Genome Institute; Copeland, A [U.S. Department of Energy, Joint Genome Institute; Lu, Megan [Los Alamos National Laboratory (LANL); Bruce, David [Los Alamos National Laboratory (LANL); Detter, J. Chris [U.S. Department of Energy, Joint Genome Institute; Tapia, Roxanne [Los Alamos National Laboratory (LANL); Han, Cliff [Los Alamos National Laboratory (LANL); Land, Miriam L [ORNL; Ivanova, N [U.S. Department of Energy, Joint Genome Institute; Mikhailova, Natalia [U.S. Department of Energy, Joint Genome Institute; Johnston, Andrew W. B. [University of East Anglia, Norwich, United Kingdom; Sanchez-Amat, Antonio [University of Murcia, Murcia, Spain

2012-01-01T23:59:59.000Z

236

P.O. Box 2078 Carlsbad, New Mexico USA 88221-2078 Phone: (505) 234-7200 Fax: (505) 234-7083  

E-Print Network [OSTI]

P.O. Box 2078 Carlsbad, New Mexico USA 88221-2078 Phone: (505) 234-7200 Fax: (505) 234-7083 TP TS:02018 P.O. Box 2078 Carlsbad, New Mexico USA 88221-2078 Phone: (505) 234-7200 Fax: (505) 234

237

The Great Sons of Thang stong rgyal po: the Bu chen of the Pin valley, Spiti1  

E-Print Network [OSTI]

The Great Sons of Thang stong rgyal po: the Bu chen of the Pin valley, Spiti1 Pascale Dollfus GEOGRAPHICAL AND CULTURAL SETTING Standing to the south-west, Pin is one of four units constituting Spiti2 Range and shares its eastern frontiers with Tibet (Map 1). It includes the whole valley of the Pin river

Paris-Sud XI, Université de

238

Does Online Mobile Gaming Overcharge You for De-Yu Chen, Po-Ching Lin, and Kuan-Ta Chen  

E-Print Network [OSTI]

Does Online Mobile Gaming Overcharge You for The Fun? De-Yu Chen, Po-Ching Lin, and Kuan-Ta Chen, National Chung Cheng University Abstract--With the growing popularity of online mobile games, the network traffic generated by them accounts for an increas- ingly significant proportion of mobile Internet traffic

Chen, Sheng-Wei

239

Enhanced high rate and low temperature electrochemical properties of LiFePO4/C composites by doping samarium ion  

Science Journals Connector (OSTI)

The olivine-type samarium-doped LiFe1 ? x Sm x PO4/C (x?=?0, 0.01, 0.02, 0.03, 0.04, and 0.05) composites were synthesized via liquid-phase precipitation reaction...

Zhipeng Ma; Guangjie Shao; Xu Wang; Jianjun Song

2013-09-01T23:59:59.000Z

240

Cloud-to-Ground Lightning Distribution and Its Relationship with Orography and Anthropogenic Emissions in the Po Valley  

Science Journals Connector (OSTI)

The main object of this work is to study the lightning climatology in the Po Valley in Italy and how it varies in time (interannual, annual, weekly, and daily time scales) and space (sea coast, plains, and mountain areas) and how that is related ...

Laura Feudale; Agostino Manzato

2014-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

Matlab for Scientists and Engineers Instructor: Po Chen (pchen@uwyo.edu) Phone: (307)766-3086 Office: ESB2036  

E-Print Network [OSTI]

1 Matlab for Scientists and Engineers Instructor: Po Chen (pchen@uwyo.edu) Phone: (307 using Matlab. We emphasize the systematic development of algorithms and programs. Topics include basic data structures and flow control, object-oriented programming and Matlab graphics. By the end

Chen, Po

242

Intelligent Strategies for Compliant Robotic Assembly Wyatt S. Newman (wsn@po.cwru.edu), Michael Branicky, Yoh-Han Pao,  

E-Print Network [OSTI]

into robotic practice. In automotive plants, applications of robots are dominated by painting, spot weldingIntelligent Strategies for Compliant Robotic Assembly Wyatt S. Newman (wsn@po.cwru.edu), Michael: A review of compliant-motion control strategies is presented, applicable to robotic assembly of industrial

Branicky, Michael S.

243

Product Safety Recall GME EMERGEncy PoSition indicatinG Radio BEaconS (EPiRBS)  

E-Print Network [OSTI]

Standard Communications Pty Ltd designs and manufactures a range of Emergency Position Indicating RadioProduct Safety Recall GME EMERGEncy PoSition indicatinG Radio BEaconS (EPiRBS) Mt400/Mt401/Mt403 Beacons (EPIRBs) marketed globally under the GME brand. Problem After exhaustive testing we have

244

Mixed Ionic and Electronic Conduction in Li3PO4 Electrolyte for a CO2 Gas Sensor  

E-Print Network [OSTI]

equilib- rium potential types, are most promising for CO2 monitoring among the solid-state and Measurements, The Ohio State University, Columbus, Ohio 43210, USA An electrochemical CO2 gas sensor using Li2. Because Li3PO4 electrolyte has been fabricated as a Lipon glass thin film in battery applications,14

Dutta, Prabir K.

245

Synthesis and electrochemical performance of LiMnxFex?1PO4/C cathode material for lithium secondary batteries  

Science Journals Connector (OSTI)

Carbon-coated LiMn0.8Fe0.2PO4.../C (C = 5 wt.%, 10 wt.%, 15 wt.%, and 20 wt.%) cathode material is synthesized using a solid-state method. No impurity is found within the synthesized active material, which is con...

Hyun-Soo Kim; Kyung Min Jin; Bong Soo Jin

2011-10-01T23:59:59.000Z

246

Division of Student Services 514 Gruening Building, P.O. Box 756340, Fairbanks, Alaska 99775-6340  

E-Print Network [OSTI]

Division of Student Services 514 Gruening Building, P.O. Box 756340, Fairbanks, Alaska 99775 AGREEMENT for the Review of Infrastructure, Sustainability and Energy Board Between the Associated Students of Sustainability, Faculty Senate, and Staff Council March 2011 Preamble In order to promote investment in energy

Ickert-Bond, Steffi

247

Impact of microwave synthesis conditions on the rechargeable capacity of LiCoPO4 for lithium ion batteries  

Science Journals Connector (OSTI)

LiCoPO4 was synthesized via microwave synthesis following the procedure previously described [23]. Lithium hydroxide (LiOH, 98% Sigma Aldrich) and cobalt(II) acetate tetrahydrate [Co(CH3COO)24H2O, Sigma Aldrich...

Reginald E. Rogers; Garry M. Clarke

2013-03-01T23:59:59.000Z

248

Advanced Electrodes for Solid Acid Fuel Cells by Platinum Deposition on CsH2PO4  

Science Journals Connector (OSTI)

Advanced Electrodes for Solid Acid Fuel Cells by Platinum Deposition on CsH2PO4 ... The unique characteristics of the CDP electrolyte pose several challenges to SAFC optimization, particularly in the area of cathode microstructure. ... 1% CO demonstrates the potential of this approach with optimized reforming catalysts and also the tolerance to CO poisoning at these elevated temps. ...

Alexander B. Papandrew; Calum R.I. Chisholm; Ramez A. Elgammal; Mustafa M. zer; Strahinja K. Zecevic

2011-03-15T23:59:59.000Z

249

29th International Cosmic Ray Conference Pune (2005) 00, 101-104 TeV Observations of EGRET Unidentified Sources  

E-Print Network [OSTI]

29th International Cosmic Ray Conference Pune (2005) 00, 101-104 TeV Observations of EGRET sr), high (>90%) duty factor, TeV gamma-ray observatory is ideal for searching for TeV emission from Milagro has sufficient exposure. Of these 68 sources, 29 are within 10 degrees of the Galactic plane. Te

California at Santa Cruz, University of

250

Electrical, optical, and thermal properties of Sn-doped phase change material Ge2Sb2Te5  

Science Journals Connector (OSTI)

In this article, effect of Sn on the electrical, optical, and thermal properties of Ge2Sb2Te5 is studied. Ge2Sb2Te5, Ge1.55Sb2Te5Sn0.45, and Ge1.1Sb2Te5Sn0.9...alloys are prepared by melt quenching technique and ...

Gurinder Singh; Aman Kaura; Monika Mukul; S. K. Tripathi

2013-01-01T23:59:59.000Z

251

High efficiency photodetectors fabricated by electrostatic layer-by-layer self-assembly of CdTe quantum dots  

E-Print Network [OSTI]

High efficiency photodetectors fabricated by electrostatic layer-by-layer self-assembly of CdTe 20 October 2008 We demonstrate high-performance photodetectors from multilayers of CdTe quantum dots. The synthesis of CdTe QDs in aqueous solution using cadmium perchlorate hydrate and Al2Te3 was previously re

Lin, Lih Y.

252

ROLE OF COPPER IN THE PERFORMANCE OF CdS/CdTe SOLAR CELLS * , D. Albin2  

E-Print Network [OSTI]

simulations to reproduce and explain some of the experimental results. Introduction The performance of CdTe Cucd in CdTe [1,2]. Cu can also migrate along grain boundaries toward the main junction. The standard with a relatively simpler one in which Cu metal of varying thickness is evaporated on Te-rich CdTe surfaces

Sites, James R.

253

1. INTRODUCTION CdTe/CdS is one of the most promising solar cell for low  

E-Print Network [OSTI]

with CdTe grown by close space sublimation, electrodeposition, spray pyrolysis, vacuum evaporation and RF conversion of CdTe layers, as well as for the intermixing of CdS-CdTe. An optimum annealing condition is required for the formation of an appropriate CdTe1-x-Sx intermixed interface. It is desirable to separately

Romeo, Alessandro

254

Nanoscale LiFePO4 and Li4Ti5O12 for High Rate Li-ion Batteries  

SciTech Connect (OSTI)

The electrochemical performances of nanoscale LiFePO4 and Li4Ti5O12 materials are described in this communication. The nanomaterials were synthesized by pyrolysis of an aerosol precursor. Both compositions required moderate heat-treatment to become electrochemically active. LiFePO4 nanoparticles were coated with a uniform, 2-4 nm thick carbon-coating using an organic precursor in the heat treatment step and showed high tap density of 1.24 g/cm3, in spite of 50-100 nm particle size and 2.9 wtpercent carbon content. Li4Ti5O12 nanoparticles were between 50-200 nm in size and showed tap density of 0.8 g/cm3. The nanomaterials were tested both in half cell configurations against Li-metal and also in LiFePO4/Li4Ti5O12 full cells. Nano-LiFePO4 showed high discharge rate capability with values of 150 and 138 mAh/g at C/25 and 5C, respectively, after constant C/25 charges. Nano-Li4Ti5O12 also showed high charge capability with values of 148 and 138 mAh/g at C/25 and 5C, respectively, after constant C/25 discharges; the discharge (lithiation) capability was comparatively slower. LiFePO4/Li4Ti5O12 full cells deliver charge/discharge capacity values of 150 and 122 mAh/g at C/5 and 5C, respectively.

Jaiswal, A.; Horne, C.R.; Chang, O.; Zhang, W.; Kong, W.; Wang, E.; Chern, T.; Doeff, M. M.

2009-08-04T23:59:59.000Z

255

High Efficiency CdTe/CdS Thin Film Solar Cells Prepared by Treating CdTe Films with a Freon Gas in Substitution of CdCl2  

E-Print Network [OSTI]

High Efficiency CdTe/CdS Thin Film Solar Cells Prepared by Treating CdTe Films with a Freon Gas delle Scienze, 37/A-43010 Fontanini, Parma, Italy ABSTRACT: CdTe/CdS thin film solar cells have reached in the preparation of high efficiency CdTe/CdS solar cells is the activation treatment of CdTe film. Most research

Romeo, Alessandro

256

Charge transport properties of CdMnTe radiation detectors  

SciTech Connect (OSTI)

Growth, fabrication and characterization of indium-doped cadmium manganese telluride (CdMnTe)radiation detectors have been described. Alpha-particle spectroscopy measurements and time resolved current transient measurements have yielded an average charge collection efficiency approaching 100 %. Spatially resolved charge collection efficiency maps have been produced for a range of detector bias voltages. Inhomogeneities in the charge transport of the CdMnTe crystals have been associated with chains of tellurium inclusions within the detector bulk. Further, it has been shown that the role of tellurium inclusions in degrading chargecollection is reduced with increasing values of bias voltage. The electron transit time was determined from time of flight measurements. From the dependence of drift velocity on applied electric field the electron mobility was found to be n = (718 55) cm2/Vs at room temperature.

Kim K.; Rafiel, R.; Boardman, M.; Reinhard, I.; Sarbutt, A.; Watt, G.; Watt, C.; Uxa, S.; Prokopovich, D.A.; Belas, E.; Bolotnikov, A.E.; James, R.B.

2012-04-11T23:59:59.000Z

257

Characterization of isothermal vapor phase epitaxial (Hg,Cd)Te  

Science Journals Connector (OSTI)

We report on the characterization of mercury cadmium telluride (Hg 1?x Cd x Te) film grown by the isothermal vapor phase epitaxial method (ISOVPE) and on the surface conversion of bulk Hg 1?xCd x Te to larger bandgap material. The crystal perfection is evaluated using defect etching electron beam and electrolyte electroreflectance (EBER and EER) and Rutherford backscattering spectrometry (RBS). Hall measurements are used to measure carrier densities and mobilities. Surface concentrations and concentration profiles are measured for the ISOVPE grown layers by transmission Fourier transform infrared spectroscopy (FTIR) and electron?probe microanalysis (EPMA) to establish quantitative informations about composition control. Metalinsulator?semiconductor (MIS) structures were made and the properties important to device performance such as compositional uniformity storage time and carrier concentration are measured. The ISOVPE layers are compared in quality to films grown by other methods and show promise for MIS devices.

S. B. Lee; L. K. Magel; M. F. S. Tang; D. A. Stevenson; J. H. Tregilgas; M. W. Goodwin; R. L. Strong

1990-01-01T23:59:59.000Z

258

Point Defect Characterization in CdZnTe  

SciTech Connect (OSTI)

Measurements of the defect levels and performance testing of CdZnTe detectors were performed by means of Current Deep Level Transient Spectroscopy (I-DLTS), Transient Charge Technique (TCT), Current versus Voltage measurements (I-V), and gamma-ray spectroscopy. CdZnTe crystals were acquired from different commercial vendors and characterized for their point defects. I-DLTS studies included measurements of defect parameters such as energy levels in the band gap, carrier capture cross sections, and defect densities. The induced current due to laser-generated carriers was measured using TCT. The data were used to determine the transport properties of the detectors under study. A good correlation was found between the point defects in the detectors and their performance.

Gul,R.; Li, Z.; Bolotnikov, A.; Keeter, K.; Rodriguez, R.; James, R.

2009-03-24T23:59:59.000Z

259

MHK Projects/TE4 | Open Energy Information  

Open Energy Info (EERE)

TE4 TE4 < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","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":52.3247,"lon":1.68765,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

260

RARE B MESON DECAYS T.E. Browder \\Lambda  

E-Print Network [OSTI]

Supported by the US Department of Energy c fl 2002 by T.E. Browder #12; 1 Introduction, Motivation on the construction of the Standard Model of particle physics. Recall that in a physical picture with only three. As a result, the weak neutral current, J 0 NC , J 0 NC = u¯u + d c ¯ d c + s c ¯ s c (2) = u¯u + d ¯ d cos 2

Browder, Tom

Note: This page contains sample records for the topic "te po lv" 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

Photoluminescence upconversion in colloidal CdTe quantum dots  

Science Journals Connector (OSTI)

Efficient photoluminescence (PL) up-conversion has been observed in colloidal CdTe quantum dots with an energy gain of as high as 360 meV. Compared with the normal PL, the peak energy of this up-converted PL (UCPL) shows a redshift of about 80 meV, and the corresponding radiative lifetime becomes nearly twice as long. This UCPL is attributed to the carrier recombination involving surface states mainly through a thermal excitation process.

Xiaoyong Wang; W. William Yu; Jiayu Zhang; Jose Aldana; Xiaogang Peng; Min Xiao

2003-09-22T23:59:59.000Z

262

Mr. John E. Kieling, Chief Hazardous Was te Bureau  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

John E. Kieling, Chief John E. Kieling, Chief Hazardous Was te Bureau Depa rtment of Energy Carlsbad Field Office P. O. Box 3090 Carlsbad , New Mexico 88221 NOV 0 5 2013 New Mexico Environment Department 2905 Rodeo Park Drive East. Building 1 Santa Fe, New Mexico 87505-6303 Subject: Panel 6 Closure and Final Waste Emplacement Notifications Dear Mr. Kieling : The purpose of this leiter is 1 0 notify th e New Mexico Environment Department (NMEO) that the

263

Density functional simulations of phase change materials: disordered phases of Ge8Sb2Te11 and Ag/In/Sb/Te alloys  

E-Print Network [OSTI]

E*PCOS2009 Density functional simulations of phase change materials: disordered phases of Ge8Sb2Te75.0Te17.7 (AIST). These represent two families used widely as phase change materials: pseudobinary and more flexible than those of Ag. Key words: Phase change materials, density functional calculations

264

ELUTIONS Inc formerly TeCom | Open Energy Information  

Open Energy Info (EERE)

ELUTIONS Inc formerly TeCom ELUTIONS Inc formerly TeCom Jump to: navigation, search Name ELUTIONS Inc (formerly TeCom) Place Tampa, Florida Zip 33605 Sector Efficiency Product Tampa-based wireless enterprise automation solutions firm. Elutions provides an Active Energy Management service allowing users to increase efficiency by monitoring, forecasting and analyzing utility resource consumption. Coordinates 27.94653°, -82.459269° 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":27.94653,"lon":-82.459269,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

265

A New Limit on the Neutrinoless DBD of 130Te  

E-Print Network [OSTI]

We report the present results of CUORICINO a cryogenic experiment on neutrinoless double beta decay (DBD) of 130Te consisting of an array of 62 crystals of TeO2 with a total active mass of 40.7 kg. The array is framed inside of a dilution refrigerator, heavily shielded against environmental radioactivity and high-energy neutrons, and operated at a temperature of ~8 mK in the Gran Sasso Underground Laboratory. Temperature pulses induced by particle interacting in the crystals are recorded and measured by means of Neutron Transmutation Doped thermistors. The gain of each bolometer is stabilized with voltage pulses developed by a high stability pulse generator across heater resistors put in thermal contact with the absorber. The calibration is performed by means of two thoriated wires routinely inserted in the set-up. No evidence for a peak indicating neutrinoless DBD of 130Te is detected and a 90% C.L. lower limit of 1.8E24 years is set for the lifetime of this process. Taking largely into account the uncertainties in the theoretical values of nuclear matrix elements, this implies an upper boud on the effective mass of the electron neutrino ranging from 0.2 to 1.1 eV. This sensitivity is similar to those of the 76Ge experiments.

C. Arnaboldi; D. R. Artusa; F. T. Avignone III; M. Balata; I. Bandac; M. Barucci; J. W. Beeman; C. Brofferio; C. Bucci; S. Capelli; L. Carbone; S. Cebrian; O. Cremonesi; R. J. Creswick; A. de Waard; H. A. Farach; E. Fiorini; G. Frossati; E. Guardincerri; A. Giuliani; P. Gorla; E. E. Haller; J. McDonald; E. B. Norman; A. Nucciotti; E. Olivieri; M. Pallavicini; E. Palmieri; E. Pasca; M. Pavan; M. Pedretti; G. Pessina; S. Pirro; E. Previtali; L. Risegari; C. Rosenfeld; S. Sangiorgio; M. Sisti; A. R. Smith; L. Torres; G. Ventura

2005-01-13T23:59:59.000Z

266

Electronic and thermal transport in GeTe: A versatile base for thermoelectric materials  

SciTech Connect (OSTI)

GeTe is a narrow-band gap semiconductor, where Ge vacancies generate free charge carriers, holes, forming a self-dopant degenerate system with p-type conductivity, and serves as a base for high-performance multicomponent thermoelectric materials. There is a significant discrepancy between the electronic and thermal transport data for GeTe-based materials reported in the literature, which obscures the baseline knowledge and prevents a clear understanding of the effect of alloying GeTe with various elements. A comprehensive study including XRD, SEM, EDS, Seebeck coefficient, electrical resistivity, thermal conductivity, and 125Te NMR of several GeTe samples was conducted. Similar Seebeck coefficient and electrical resistivity are observed for all GeTe samples used showing that the concentration of Ge vacancies generating charge carriers is constant along the ingot. Very short 125Te NMR spin-relaxation time agrees well with high carrier concentration obtained from the Hall effect measurements. Our data show that at ~700 K, GeTe has a very large power factor, 42 ?Wcm-1K-2, much larger than that of any high efficiency thermoelectric telluride at these temperatures. Electronic and thermal properties of GeTe are compared to PbTe, another well-known thermoelectric material, where free charge carriers, holes or electrons, are generated by vacancies on Pb or Te sites, respectively. Discrepancy in the data for GeTe reported in literature can be attributed to the variation in the Ge:Te ratio of solidified samples as well as to different conditions of measurements.

None

2013-08-29T23:59:59.000Z

267

Electronic and thermal transport in GeTe: A versatile base for thermoelectric materials  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

GeTe is a narrow-band gap semiconductor, where Ge vacancies generate free charge carriers, holes, forming a self-dopant degenerate system with p-type conductivity, and serves as a base for high-performance multicomponent thermoelectric materials. There is a significant discrepancy between the electronic and thermal transport data for GeTe-based materials reported in the literature, which obscures the baseline knowledge and prevents a clear understanding of the effect of alloying GeTe with various elements. A comprehensive study including XRD, SEM, EDS, Seebeck coefficient, electrical resistivity, thermal conductivity, and 125Te NMR of several GeTe samples was conducted. Similar Seebeck coefficient and electrical resistivity are observed for all GeTe samples used showing that the concentration of Ge vacancies generating charge carriers is constant along the ingot. Very short 125Te NMR spin-relaxation time agrees well with high carrier concentration obtained from the Hall effect measurements. Our data show that at ~700 K, GeTe has a very large power factor, 42 ?Wcm-1K-2, much larger than that of any high efficiency thermoelectric telluride at these temperatures. Electronic and thermal properties of GeTe are compared to PbTe, another well-known thermoelectric material, where free charge carriers, holes or electrons, are generated by vacancies on Pb or Te sites, respectively. Discrepancy in the data for GeTe reported in literature can be attributed to the variation in the Ge:Te ratio of solidified samples as well as to different conditions of measurements.

None

2013-08-29T23:59:59.000Z

268

Development of ZnTe:Cu Contacts for CdTe Solar Cells: Cooperative Research and Development Final Report, CRADA Number CRD-08-320  

SciTech Connect (OSTI)

The main focus of the work at NREL was on the development of Cu-doped ZnTe contacts to CdTe solar cells in the substrate configuration. The work performed under the CRADA utilized the substrate device structure used at NREL previously. All fabrication was performed at NREL. We worked on the development of Cu-doped ZnTe as well as variety of other contacts such as Sb-doped ZnTe, CuxTe, and MoSe2. We were able to optimize the contacts to improve device parameters. The improvement was obtained primarily through increasing the open-circuit voltage, to values as high as 760 mV, leading to device efficiencies of 7%.

Dhere, R.

2012-04-01T23:59:59.000Z

269

Vibrational spectroscopic characterization of the phosphate mineral althausite Mg2(PO4)(OH,F,O) Implications for the molecular structure  

Science Journals Connector (OSTI)

Abstract Natural single-crystal specimens of althausite from Brazil, with general formula Mg2(PO4)(OH,F,O) were investigated by Raman and infrared spectroscopy. The mineral occurs as a secondary product in granitic pegmatites. The Raman spectrum of althausite is characterized by bands at 1020, 1033 and 1044cm?1, assigned to ?1 symmetric stretching modes of the HOPO 3 3 - and PO 4 3 - units. Raman bands at around 1067, 1083 and 1138cm?1 are attributed to both the HOP and PO antisymmetric stretching vibrations. The set of Raman bands observed at 575, 589 and 606cm?1 are assigned to the ?4 out of plane bending modes of the PO4 and H2PO4 units. Raman bands at 439, 461, 475 and 503cm?1 are attributed to the ?2 PO4 and H2PO4 bending modes. Strong Raman bands observed at 312, 346cm?1 with shoulder bands at 361, 381 and 398cm?1 are assigned to MgO stretching vibrations. No bands which are attributable to water were found. Vibrational spectroscopy enables aspects of the molecular structure of althausite to be assessed.

Ray L. Frost; Andrs Lpez; Yunfei Xi; Ricardo Scholz

2014-01-01T23:59:59.000Z

270

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion Battery Cathode  

SciTech Connect (OSTI)

Electrochemically active LiMnPO4 nanoplates have been synthesized via novel single step solid state reaction in molten hydrocarbon. The LiMnPO4 prepared show unique porous nanoplate shape ~50nm in thickness with highly preferred crystallographic orientation. The reversible cycling of carbon coated LiMnPO4 show flat potential at 4.1 V vs. Li with specific capacity reaching up to 168mAh/g and excellent cycling performance using only galvanostatic charging / discharging mode.

Choi, Daiwon; Wang, Donghai; Bae, In-Tae; Xiao, Jie; Nie, Zimin; Wang, Wei; Viswanathan, Vilayanur V.; Lee, Yun Jung; Zhang, Jiguang; Graff, Gordon L.; Yang, Zhenguo; Liu, Jun

2010-08-11T23:59:59.000Z

271

First-Principles Study of Back Contact Effects on CdTe Thin Film Solar Cells  

SciTech Connect (OSTI)

Forming a chemically stable low-resistance back contact for CdTe thin-film solar cells is critically important to the cell performance. This paper reports theoretical study of the effects of the back-contact material, Sb{sub 2}Te{sub 3}, on the performance of the CdTe solar cells. First-principles calculations show that Sb impurities in p-type CdTe are donors and can diffuse with low diffusion barrier. There properties are clearly detrimental to the solar-cell performance. The Sb segregation into the grain boundaries may be required to explain the good efficiencies for the CdTe solar cells with Sb{sub 2}Te{sub 3} back contacts.

Du, Mao-Hua [ORNL

2009-01-01T23:59:59.000Z

272

Multi-TeV flaring from blazars: Markarian 421 a case study  

E-Print Network [OSTI]

The TeV blazar Markarian 421 underwent multi-TeV flaring during April 2004 and simultaneously observed in x-ray and TeV energies. It was observed that the TeV outbursts had no counterparts in the lower energies, which implies that this might be an orphan flare. In the context of hadronic model, we have shown that this multi-TeV flaring can be produced due to the interaction of Fermi-accelerated protons of energy $\\lesssim 168$ TeV with the background photons in the low energy tail of the synchrotron self-Compton spectrum of the blazar jet. We fit very well the flaring spectrum with this model. Based on this study, we speculate that Mrk 501 and PG 1553+113 are possible candidates for orphan flaring in the future.

Sahu, Sarira; Rajpoot, Subhash

2015-01-01T23:59:59.000Z

273

The Effect of Structural Vacancies on the Thermoelectric Properties of (Cu2Te)1-x(Ga2Te3)x  

SciTech Connect (OSTI)

We have studied the effects of structural vacancies on the thermoelectric properties of the ternary compounds (Cu2Te)1-x(Ga2Te3)x (x = 0.5, 0.55, 0.571, 0.6, 0.625, 0.667 and 0.75), which are solid solutions found in the pseudo-binary phase diagram for Cu2Te and Ga2Te3. This system possesses tunable structural vacancy concentrations. The x= 0.5 phase, CuGaTe2, is nominally devoid of structural vacancies, while the rest of the compounds contain varying amounts of these features, and the volume density of vacancies increases with Ga2Te3 content. The sample with x = 0.5, 0.55, 0.571, 0.6, 0.625 crystallize in the chalcopyrite structure while the x = 0.667 and 0.75 adopt the Ga2Te3 defect zinc blende structure. Strong scattering of heat carrying phonons by structural defects, leads to the reduction of thermal conductivity, which is beneficial to the thermoelectric performance of materials. On the other hand, these defects also scatter charge carriers and reduce the electrical conductivity. All the samples investigated are p-type semiconductors as inferred by the signs of their respective Hall (RH) and Seebeck (S) coefficients. The structural vacancies were found to scatter phonons strongly, while a combination of increased carrier concentration, and vacancies decreases the Hall mobility ( H), degrading the overall thermoelectric performance. The room temperature H drops from 90 cm2/V s for CuGaTe2 to 13 cm2/V s in Cu9Ga11Te21 and 4.6 cm2/V s in CuGa3Te5. The low temperature thermal conductivity decreases significantly with higher Ga2Te3 concentrations (higher vacancy concentration) due to increased point defect scattering which dominate thermal resistance terms. At high temperatures, the dependence of thermal conductivity on the Ga2Te3 content is less significant. The presence of strong Umklapp scattering leads to low thermal conductivity at high temperatures for all samples investigated. The highest ZT among the samples in this study was found for the defect-free CuGaTe2 with ZT ~ 1.0 at 840K.

Ye, Zuxin [GM Research and Development Center; Cho, Jung Y [GM R& D and Planning, Warren, Michigan; Tessema, Misle [GM Research and Development Center; Salvador, James R. [GM R& D and Planning, Warren, Michigan; Waldo, Richard [GM R& D and Planning, Warren, Michigan; Wang, Hsin [ORNL; Cai, Wei [ORNL

2013-01-01T23:59:59.000Z

274

NICXEL PLATIl'iG GF UFUNNN CYLINDEIiS I SYMBOLI Po$Fcsroj  

Office of Legacy Management (LM)

NICXEL PLATIl'iG GF UFUNNN CYLINDEIiS NICXEL PLATIl'iG GF UFUNNN CYLINDEIiS I SYMBOLI Po$Fcsroj --- It-- ___.. A._.. ..,. - ., -.- ,,,.. _,,,...._ .' . -. a....... "!' 7 !c:H.) 4) At a reoemt visit to the kfonne Iaboratoriea of International Nlkkel, aranllzl 4 l%eumnlnm~llndar,3/b'l)x8"longwas sandblasted, degreasd in triohl~nth$'e~an~ snd immersed for 15 eeooPd# in 181 ooncentration of HCl et room temrperature. Following th.b,the sample was givema anthodic treatmentueinga plAt1niumanode at 25 smperds per square foot. After the cat&d10 treatment the sample w-88 water rinsed and plated to appmdmntoly l/i, ml1 wing a high sulfate nickel t&h at rosa tG3mpamture with vigoroum agitetlonand etl.+l/2 salpa per square root. This primer coat required approximately 15 minutes in the plating bath. After this, the sezaple 5

275

DETERMINATION AND CHARACTERIZATION OF DEEP LEVELS IN p-CdTe(Cl)  

E-Print Network [OSTI]

photons de 122 keV (57Co) et de 5 keV pour des photons de 59 keV (241Am). Abstract. 2014 CdTe single doped CdTe single crystals grown from tellurium solvent have a good resolution for gamma-rays, when. The investigation of the energy levels system of charged centres in CdTe, as well as in other II-VI compounds

Paris-Sud XI, Université de

276

ELECTRIC PROPERTIES OF SEMI-INSULATING CRYSTALS CdTe : Cl  

E-Print Network [OSTI]

239 ELECTRIC PROPERTIES OF SEMI-INSULATING CRYSTALS CdTe : Cl E. N. ARKADYEVA and O. A. MATVEEV A Des mesures d'effet Hall et de conductivité sont effectuées sur des cristaux de CdTe, dopé au chlore and conductivity measurement are carried out on chlorine doped semi- insulating CdTe crystals, of p and n electric

Boyer, Edmond

277

Voltage Dependent Carrier Collection in CdTe Solar Cells D.L. Btzner1  

E-Print Network [OSTI]

Voltage Dependent Carrier Collection in CdTe Solar Cells D.L. Bätzner1 , Guido Agostinelli2 , A to 1000nm, i.e. the band edge region of CdTe. Region I is further divided in a `blue' part between 300 nm III is as well subdivided in region IIIa from about 800 nm to the band gap of CdTe (~850 nm

Romeo, Alessandro

278

CdTe OPTICAL WAVEGUIDE MODULATORS (*) D. L. SPEARS and A. J. STRAUSS  

E-Print Network [OSTI]

401 CdTe OPTICAL WAVEGUIDE MODULATORS (*) D. L. SPEARS and A. J. STRAUSS Lincoln Laboratory guides d'ondes opto-acoustiques et opto-électriques ont été réalisés dans des guides d'ondes n-/n+ CdTe-électriques de faible tension ont été réalisés en appliquant des électrodes en or sur des plaquettes n+ de CdTe

Paris-Sud XI, Université de

279

ELECTROABSORPTION BY IMPURITIES AND DEFECTS IN SEMI-INSULATING CdTe  

E-Print Network [OSTI]

263 ELECTROABSORPTION BY IMPURITIES AND DEFECTS IN SEMI-INSULATING CdTe G. NEU, Y. MARFAING, R des défauts dans CdTe compensé non dopé et dopé au chlore de 1,2 à 1,6 eV. Trois groupes de symétrie. Abstract. 2014 Electroabsorption experiments have been conducted on semi-insulating CdTe prepared

Paris-Sud XI, Université de

280

CdTe-Cu(OH){sub 2} nanocomposite: Aqueous synthesis and characterization  

SciTech Connect (OSTI)

CdTe-Cu(OH){sub 2} nanocomposites were synthesized in aqueous solution by a seed-mediated growth approach. The effect of refluxing time and the concentration of Cu{sup 2+} on the preparation of these samples were measured using UV-visible absorption and photoluminescence analysis. The emission peak of the synthesized nanocomposites (CdTe-Cu(OH){sub 2}) was shifted from 605 (CdTe seed) to 621 nm. The size of CdTe nanoparticles were averaged about 3.22 nm, and the CdTe-Cu(OH){sub 2} nanocomposites were averaged as 5.19 nm. The synthesized CdTe-Cu(OH){sub 2} nanocomposite were characterized with XRD, EDAX, TEM, FT-IR, EPR, and thermal analysis (TG/DTG curves). The results indicate that as-prepared nanoparticles with core/shell structure exhibit interesting optical properties. -- Graphical Abstract: Schematic of aqueous synthesis route for CdTe-Cu(OH){sub 2} nanocomposite and The Stokes shift of CdTe nanocrystals and CdTe-Cu(OH){sub 2} Nanocomposites, (CdTe: emission at 605 nm, CdTe-Cu(OH){sub 2}: emission at 621 nm). Display Omitted Highlights: {yields} CdTe-Cu(OH){sub 2} nanocomposites were synthesized by a seed-mediated growth approach. {yields} The synthetic procedure is simple, and can be easily scaled up. {yields} The effect of refluxing time on the preparation of these samples was measured. {yields} The Cu(OH){sub 2} shell thickness was controlled by the amount of Cu in the solution. {yields} TEM images demonstrated homogeneous size distribution for these nanocomposites.

Abd El-sadek, M.S., E-mail: el_sadek_99@yahoo.co [Nanomaterial Laboratory, Physics Department, Faculty of Science, South Valley University, Qena 83523 (Egypt); Crystal Growth Centre, Anna University Chennai, Chennai 600025 (India); Moorthy Babu, S. [Crystal Growth Centre, Anna University Chennai, Chennai 600025 (India)

2011-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

DISSERTATION Role of the Cu-O Defect in CdTe Solar Cells  

E-Print Network [OSTI]

OF THE CU-O DEFECT COMPLEX IN CDTE SOLAR CELLS Thin-film CdTe is one of the leading materials used the defects present in thin-film CdTe deposited for solar cells. One key defect seen in the thin-film CdDISSERTATION Role of the Cu-O Defect in CdTe Solar Cells Submitted by Caroline R. Corwine

Sites, James R.

282

Superficies y Vacio 8, 69-72(1999) Sociedad Mexicana de Ciencias de Superficies y de Vaco. Electronic properties of (CdTe)x(In2Te3)1-x thin films grown by close spaced vapor  

E-Print Network [OSTI]

(CSVT-FE); CdTe and In2Te3 were employed as sources. The temperature of evaporation of the CdTe and In2 the band gap energy from a value as low as 0.6 eV up to 1.5 eV, the band gap of CdTe. It has been reported I. INTRODUCTION The ternary compound CdIn2Te4 is of interest since all compounds formed by mixing CdTe

Meléndez Lira, Miguel Angel

283

PoS(PRA2009)028 The ATLAS Survey of the CDFS and ELAIS-S1 Fields  

E-Print Network [OSTI]

PoS(PRA2009)028 The ATLAS Survey of the CDFS and ELAIS-S1 Fields Emil Lenc, Ray Norris Australia Telescope National Facility E-mail: Emil.Lenc@csiro.au, Ray.Norris@csiro.au Andrew Hopkins, Rob Sharp Anglo of Sydney E-mail: krandall@physics.usyd.edu.au The first phase of the ATLAS (Australia Telescope Large Area

Norris, Ray

284

Electrical properties of PbTe single crystals with excess tellurium  

SciTech Connect (OSTI)

The effects of excess (up to 0.1 at %) Te atoms and heat treatment at 473 and 573 K for 120 h on the conductivity {sigma}, thermopower {alpha}, and Hall coefficient R of PbTe single crystals are studied. It is shown that excess Te atoms and annealing strongly affect the values and character of the temperature dependences of these parameters and the signs of {alpha} and R at low temperatures, which is caused by the acceptor effect of these atoms and the formation of antisite defects due to localization of Te in vacancies of the lead sublattice upon annealing.

Bagiyeva, G. Z., E-mail: bagieva-gjulandam@rambler.ru; Mustafayev, N. B.; Abdinova, G. Dj.; Abdinov, D. Sh. [National Academy of Sciences of Azerbaijan, Abdullaev Institute of Physics (Azerbaijan)

2011-11-15T23:59:59.000Z

285

Characterization and Analysis of CIGS and CdTE Solar Cells: December 2004 - July 2008  

SciTech Connect (OSTI)

The work reported here embodies a device-physics approach based on careful measurement and interpretation of data from CIGS and CdTe solar cells.

Sites, J. R.

2009-01-01T23:59:59.000Z

286

Some possible sources of IceCube TeV-PeV neutrino events  

E-Print Network [OSTI]

The IceCube Collaboration has observed 37 neutrino events in the energy range $30\\, {\\text TeV}\\lesssim E_{\

Sarira Sahu; Luis Salvador Miranda

2014-08-21T23:59:59.000Z

287

Review of Photovoltaic Energy Production Using CdTe Thin-Film Modules: Extended Abstract Preprint  

SciTech Connect (OSTI)

CdTe has near-optimum bandgap, excellent deposition traits, and leads other technologies in commercial PV module production volume. Better understanding materials properties will accelerate deployment.

Gessert, T. A.

2008-09-01T23:59:59.000Z

288

Fabrication of ultra thin CdS/CdTe solar cells by magnetron sputtering.  

E-Print Network [OSTI]

?? CdTe is a nearly perfect absorber material for second generation polycrystalline solar cells because the bandgap closely matches the peak of the solar spectrum, (more)

Plotnikov, Victor

2009-01-01T23:59:59.000Z

289

Construo e caracterizao de clula solar tipo barreira Schottky CdTe/Al.  

E-Print Network [OSTI]

??In this work the techniques of hot wall epitaxy (HWE) and molecular beam epitaxy (MBE) on thin films of CdTe (cadmium telluride) were used in (more)

Denis Rafael de Oliveira Pereira

2011-01-01T23:59:59.000Z

290

E-Print Network 3.0 - arond te dual-axis Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Michigan University Collection: Mathematics 62 BunchTiming Measurement in the Muon Cooling Experiment Summary: Bunch-Timing Measurement in the Muon Cooling Experiment Via TE...

291

Band structure engineering of anatase TiO{sub 2} by metal-assisted P-O coupling  

SciTech Connect (OSTI)

In this work, we demonstrate that the metal-assisted P-O coupling is an effective approach to improve the photoelectrochemical properties of TiO{sub 2}. The (Sc + P) and (In + P) codoping effects on electronic structures and photocatalytic activities of anatase TiO{sub 2} are examined by performing hybrid density functional theory calculations. It is found that the coupling of P dopant with the second-nearest neighboring O atom assisted by acceptor metals (Sc/In) leads to the fully occupied and delocalized intermediate bands within the band gap of anatase TiO{sub 2}, which is driven by the P-O antibonding states (?*). This metal-assisted P-O coupling can prevent the recombination of photogenerated electron-hole pairs and effectively reduce the band gap of TiO{sub 2}. Moreover, the band edge alignments in (Sc + P) and (In + P) codoped anatase TiO{sub 2} are desirable for water-splitting. The calculated optical absorption curves indicate that (Sc + P) and (In + P) codoping in anatase TiO{sub 2} can also effectively enhance the visible light absorption.

Wang, Jiajun; Meng, Qiangqiang [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China)] [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China); Huang, Jing [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China) [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China); School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei, Anhui 230601 (China); Li, Qunxiang, E-mail: liqun@ustc.edu.cn; Yang, Jinlong [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China) [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China); Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)

2014-05-07T23:59:59.000Z

292

Direct preparation of CaTi4 (PO4)6 coatings on the surface of titanium substrate by micro arc oxidation  

Science Journals Connector (OSTI)

CaTi4 (PO4)6...coatings was prepared on the surface of CP (commercially pure) Titanium substrate via micro arc oxidation in a newly designed electrolyte system. The preparation method micro arc oxidation, as wel...

Zhongwei Zhao; Shimei Wen

2007-12-01T23:59:59.000Z

293

A Facile Route To Modify Ferrous Phosphate and Its Use as an Iron-Containing Resource for LiFePO4 via a Polyol Process  

Science Journals Connector (OSTI)

Mattievich, E.; Danon, J.Hydrothermal Synthesis and Mssbauer Studies of Ferrous Phosphate of the Homologous Series Fe32+(PO4)2(H2O)n J. Inorg. ... Mattievich, E.; Danon, J. ...

Shaomin Li; Xichuan Liu; Rui Mi; Hao Liu; Yinchuan Li; Woon-min Lau; Jun Mei

2014-05-26T23:59:59.000Z

294

Composites of Graphene and LiFePO4 as Cathode Materials for Lithium-Ion Battery: A Mini-review  

Science Journals Connector (OSTI)

This mini-review highlights selectively the recent research progress in the composites of LiFePO4 and graphene. In particularly, the different fabrication protocols, and the electrochemical performance of the com...

Haixia Wu; Qinjiao Liu; Shouwu Guo

2014-10-01T23:59:59.000Z

295

Identification of Eu oxidation states in a doped Sr5(PO4)3F phosphor by TOF-SIMS imaging  

Science Journals Connector (OSTI)

An Eu-doped Sr5(PO4)3F phosphor with a hexagonal apatite structure was prepared by a urea assisted combustion method. There was evidence of the...

Swart, H C; Nagpure, I M; Ntwaeaborwa, O M; Fisher, G L; Terblans, J J

2012-01-01T23:59:59.000Z

296

Thermal runaway features of 18650 lithium-ion batteries for LiFePO4 cathode material by DSC and VSP2  

Science Journals Connector (OSTI)

In view of availability, accountability, and applicability, LiFePO4 cathode material has been confirmed to be better than LiCoO2...cathode material. Nevertheless, few related researches were conducted for thermal

Chia-Yuan Wen; Can-Yong Jhu; Yih-Wen Wang

2012-09-01T23:59:59.000Z

297

~~~~: Gmt Lakes Cat-bar) ALTERNaTE I  

Office of Legacy Management (LM)

~~~: Gmt Lakes Cat-bar) ~~~: Gmt Lakes Cat-bar) ALTERNaTE I --------------------------------------- NAME: 333 Iv. Mkhi qr) Aw. thka o ~~~---~~~--~~~_-----__ C I TV : 8 Morim 'Love 82 10 bhh &Q Ir -+----------- STATE- fL I - ------ l OWNER(S) -__----_ past: Current: I --------------------____ Owner contacted q yes p no; _____--_____-____------~~~l if yes, data contacted -_--------__- TYPE OF OPERATION ---_------------- 0 Research & Development q Production scale testing 0 Pilot Scale 0 Bench Scale process 0 Theoretical Studies 0 Sample & Analysis Facility Type p Manufacturing I ! fJ University 0 Research Organization ! 0 Government Sponsored F+ci li ty 0 Other ----~~-~~~----~------ 0 Production 0 Disposal/Storage TYPE OF CUNTRKT ----~---~__----_ / w Prime

298

Simple shear processing of bulk BI?TE? alloys  

E-Print Network [OSTI]

diagram of the ECAE process. 26 FIGURE Page 14. Optical photomicrograph of p-type Biz Te& alloy grains before extrusion. . . . . 29 15. Optical photomicrograph of n-type Bi&Tet alloy grains before extrusion . . . . . 30 16. Schematic of ECAE tool... route C at 0. 3 in/min and 500'C 26. Optical photomicrograph of p-type BisTes alloy grains, after two passes 41 via route C at 0. 01 in/min and 500'C 42 FIGURE 27. Optical photomicrograph of p-type Biz Teq alloy grains, after four passes via route...

Im, Jae-taek

2012-06-07T23:59:59.000Z

299

TeV Astrophysics Constraints on Planck Scale Lorentz Violation  

E-Print Network [OSTI]

We analyze observational constraints from TeV astrophysics on Lorentz violating nonlinear dispersion for photons and electrons without assuming any a priori equality between the photon and electron parameters. The constraints arise from thresholds for vacuum Cerenkov radiation, photon decay and photo-production of electron-positron pairs. We show that the parameter plane for cubic momentum terms in the dispersion relations is constrained to an order unity region in Planck units. We find that the threshold configuration can occur with an asymmetric distribution of momentum for pair creation, and with a hard photon for vacuum Cerenkov radiation.

Ted Jacobson; Stefano Liberati; David Mattingly

2002-09-24T23:59:59.000Z

300

Electromagnetic leptogenesis at the TeV scale  

E-Print Network [OSTI]

We construct an explicit model implementing electromagnetic leptogenesis. In a simple extension of the Standard Model, a discrete symmetry forbids the usual decays of the right-handed neutrinos, while allowing for an effective coupling between the left-handed and right-handed neutrinos through the electromagnetic dipole moment. This generates correct leptogenesis with resonant enhancement and also the required neutrino mass via a TeV scale seesaw mechanism. The model is consistent with low energy phenomenology and would have distinct signals in the next generation colliders, and, perhaps even the LHC.

Debajyoti Choudhury; Namit Mahajan; Sudhanwa Patra; Utpal Sarkar

2011-04-11T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

{sup 1}H and {sup 31}P nuclear magnetic resonance study of proton-irradiated KH{sub 2}PO{sub 4}  

SciTech Connect (OSTI)

We have studied the microscopic structure and dynamics in a proton-irradiated KH{sub 2}PO{sub 4} single crystal. Our {sup 1}H and {sup 31}P nuclear magnetic resonance measurements indicate that proton irradiation gives rise to a decrease in the local dipolar order of the rigid lattice protons and an increase in interstitial protons as well as structural distortion of the PO{sub 4} tetrahedra.

Kim, Se-Hun [Department of Physics and Institute for Nano Science, Korea University, Seoul 136-713 (Korea, Republic of); Faculty of Science Education and Educational Research Institute, Cheju National University, Cheju 690-756 (Korea, Republic of); Lee, Kyu Won; Oh, B. H.; Lee, Cheol Eui [Department of Physics and Institute for Nano Science, Korea University, Seoul 136-713 (Korea, Republic of); Hong, K. S. [Korea Basic Science Institute, Daejeon 305-333 (Korea, Republic of)

2007-11-01T23:59:59.000Z

302

Implementation of the MPC and A Operations Monitorying (MOM) System at JSC PO Sevmas  

SciTech Connect (OSTI)

The Material Protection, Control and Accounting (MPC&A) Program has been working since 1994 with nuclear sites in Russia to upgrade the physical protection (PP) and material control and accounting (MC&A) functions at facilities containing weapons usable nuclear material. In early 2001, the MPC&A program initiated the MPC&A Operations Monitoring (MOM) Project to monitor facilities where MPC&A upgrades have been installed to provide increased confidence that personnel are present and vigilant, provide confidence that security procedures are being properly performed and provide additional assurance that nuclear materials have not been stolen. The MOM project began as a pilot project at the Moscow State Engineering Physics Institute (MEPhI) and a MOM system was successfully installed in October 2001. Following the success of the MEPhI pilot project, the MPC&A Program expanded the installation of MOM systems to several other Russian facilities, including the JSC 'PO' Sevmash', Severodvinsk, Russia. The MOM system was made operational at Sevmash in September, 2008. This paper will discuss the objectives of the MOM system installed at Sevmash and indicate how the objectives influenced the development of the conceptual design. The paper will also describe activities related to installation of the infrastructure and the MOM system at Sevmash. Experience gained from operation of the system and how the objectives are being met will also be discussed. The paper will describe how the MOM system is used at Sevmash and, in particular, how the data is analyzed. Finally, future activities including potential expansion of the MOM system, operator training, data sharing and analysis, procedure development, repair and maintenance will be included in the paper.

Monogarov, A.; Taranenko, V.; Serov,A; Duncan, C; Brownell, L; Pratt, W.T.; Carbonaro, J; White, R.M.; Coffing, J.A.

2010-07-11T23:59:59.000Z

303

Effect of shells on photoluminescence of aqueous CdTe quantum dots  

SciTech Connect (OSTI)

Graphical abstract: Size-tunable CdTe coated with several shells using an aqueous solution synthesis. CdTe/CdS/ZnS quantum dots exhibited high PL efficiency up to 80% which implies the promising applications for biomedical labeling. - Highlights: CdTe quantum dots were fabricated using an aqueous synthesis. CdS, ZnS, and CdS/ZnS shells were subsequently deposited on CdTe cores. Outer ZnS shells provide an efficient confinement of electron and hole inside the QDs. Inside CdS shells can reduce the strain on the QDs. Aqueous CdTe/CdS/ZnS QDs exhibited high stability and photoluminescence efficiency of 80%. - Abstract: CdTe cores with various sizes were fabricated in aqueous solutions. Inorganic shells including CdS, ZnS, and CdS/ZnS were subsequently deposited on the cores through a similar aqueous procedure to investigate the effect of shells on the photoluminescence properties of the cores. In the case of CdTe/CdS/ZnS quantum dots, the outer ZnS shell provides an efficient confinement of electron and hole wavefunctions inside the quantum dots, while the middle CdS shell sandwiched between the CdTe core and ZnS shell can be introduced to obviously reduce the strain on the quantum dots because the lattice parameters of CdS is situated at the intermediate-level between those of CdTe and ZnS. In comparison with CdTe/ZnS coreshell quantum dots, the as-prepared water-soluble CdTe/CdS/ZnS quantum dots in our case can exhibit high photochemical stability and photoluminescence efficiency up to 80% in an aqueous solution, which implies the promising applications in the field of biomedical labeling.

Yuan, Zhimin; Yang, Ping, E-mail: mse_yangp@ujn.edu.cn

2013-07-15T23:59:59.000Z

304

A rapid microwave heating route to synthesize graphene modified LiFePO4/C nanocomposite for rechargeable lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract A simple and rapid method for synthesizing graphene modified LiFePO4/C nanocomposite has been developed for the first time by using a microwave heating. The obtained sample is characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectra, Fourier transform infrared spectroscopy (FTIR) and various electrochemical testing techniques. XRD results indicate that the nanosized olivine LiFePO4/(C+graphene) is successfully synthesized. The size of as-synthesized nanoparticles can be controlled below 200nm with good reproducibility through this route. TEM image shows that the LiFePO4/C nanoparticles are embedded in graphene sheets. The electrochemical performance results reveal that the modification of LiFePO4/C with graphene could construct an effective conducting network, which significantly enhance the properties of LiFePO4/C based composite, including high discharge capacity, stable cycle performance, good rate capability and small charge-transfer resistance. The excellent performance shows that the graphene modified LiFePO4/C synthesized via microwave heating is a promising cathode material for rechargeable lithium-ion batteries.

Zhaozhi Wang; Haifu Guo; Peng Yan

2014-01-01T23:59:59.000Z

305

Advanced CdTe Photovoltaic Technology: September 2007 - March 2009  

SciTech Connect (OSTI)

During the last eighteen months, Abound Solar (formerly AVA Solar) has enjoyed significant success under the SAI program. During this time, a fully automated manufacturing line has been developed, fabricated and commissioned in Longmont, Colorado. The facility is fully integrated, converting glass and semiconductor materials into complete modules beneath its roof. At capacity, a glass panel will enter the factory every 10 seconds and emerge as a completed module two hours later. This facility is currently undergoing trials in preparation for large volume production of 120 x 60 cm thin film CdTe modules. Preceding the development of the large volume manufacturing capability, Abound Solar demonstrated long duration processing with excellent materials utilization for the manufacture of high efficiency 42 cm square modules. Abound Solar prototype modules have been measured with over 9% aperture area efficiency by NREL. Abound Solar demonstrated the ability to produce modules at industry leading low costs to NREL representatives. Costing models show manufacturing costs below $1/Watt and capital equipment costs below $1.50 per watt of annual manufacturing capacity. Under this SAI program, Abound Solar supported a significant research and development program at Colorado State University. The CSU team continues to make progress on device and materials analysis. Modeling for increased device performance and the effects of processing conditions on properties of CdTe PV were investigated.

Barth, K.

2011-05-01T23:59:59.000Z

306

Electrolyte electroreflectance study of laser annealing effects on the CdTe/Hg0.8Cd0.2Te (111) system  

Science Journals Connector (OSTI)

We have investigated the effects of laser annealing on the CdTe/Hg0.8Cd0.2Te?(111) system by measuring the electrolyte electroreflectance (EER) spectra from both the CdTe layer as well as the interface region. The sample was a Hg0.8Cd0.2Te?(111) single crystal with a 500??thick polycrystallineCdTefilmdeposited on it; a section of the interface was annealed using the neodymium: yttrium aluminum garnet (Nd:YAG) laser 1.06??m line. Our observations indicate the presence of strain due to lattice mismatch at the interface; laser annealing relieves this strain. In addition the annealing also causes the diffusion of Hg ions from the interfacial region into the passivant layer. The changes in the line shapes of the EER spectra also show an improvement in the crystalline quality of the passivant layer.

P. M. Amirtharaj; Fred H. Pollak; J. R. Waterman; P. R. Boyd

1982-01-01T23:59:59.000Z

307

Superficies y Vaco 12, 16-19, Junio 2001 Sociedad Mexicana de Ciencia de Superficies y de Vaco. Near-IR bandgap engineering employing the alloy (CdTe)x(In2Te3)1-x  

E-Print Network [OSTI]

the closed space vapor transport technique combined with free evaporation. As sources we employed CdTe and In thin films 1. Introduction CdTe and its alloys are versatile optoelectronic materials, some of 1.19 eV and 1.15 eV have been reported [5, 6], suggest the use of the compounds In2Te3 and CdTe

Meléndez Lira, Miguel Angel

308

New limits on the $?^{+}$EC and ECEC processes in $^{120}$Te  

E-Print Network [OSTI]

New limits on the double beta processes for $^{120}$Te have been obtained using a 400 cm$^3$ HPGe detector and a source consisting of natural Te0$_2$ powder. At a confidence level of 90% the limits are $0.19\\times 10^{18}$ y for the $\\beta^+$EC$(0\

A S Barabash; F Hubert; Ph Hubert; V Umatov

2007-03-13T23:59:59.000Z

309

A Proposal of the Method for Energy Measurements of Muons over 10 TeV  

Science Journals Connector (OSTI)

......energy determination method of high energy muons, which is based upon an observation...TeV. The uncertainty of the muon energy to be measured can be reduced if...the Editor paratus when a high energy muon in TeV region traverses through......

Tomonori Wada; Takashi Kitamura

1969-06-01T23:59:59.000Z

310

Photocurrent Mapping of 3D CdSe/CdTe Windowless Solar Cells  

Science Journals Connector (OSTI)

Photocurrent Mapping of 3D CdSe/CdTe Windowless Solar Cells ... back contact; CdSe; CdTe; photovoltaic; 3D solar cells; SPCM ... Scanning photocurrent microscopy (SPCM) has been used to evaluate the local performance of solar cells by scanning a finely focused optical beam across the surface while monitoring device response. ...

Carlos M. Hangarter; Ratan Debnath; Jong Y. Ha; Mehmet A. Sahiner; Christopher J. Reehil; William A. Manners; Daniel Josell

2013-08-22T23:59:59.000Z

311

Unravelling the atomic structure of AgInSbTe phase change materials: Theoretical perspective  

E-Print Network [OSTI]

E*PCOS2011 Unravelling the atomic structure of AgInSbTe phase change materials: Theoretical-GST. Key words: phase change materials, Ag/In/Sb/Te alloys, density functional, molecular dynamics 1. INTRODUCTION Phase change (PC) materials are chalcogenide alloys that switch very rapidly between the amorphous

312

Search for Short Duration Bursts of TeV Gamma Rays with the Milagrito Telescope  

E-Print Network [OSTI]

OG 2.3.07 Search for Short Duration Bursts of TeV Gamma Rays with the Milagrito Telescope Gus for short duration bursts of TeV photons. Such bursts may result from "traditional" gamma-ray bursts to gamma-ray bursts, the final stages of black hole evaporation) the most compelling reason may

California at Santa Cruz, University of

313

Unusual Otto excitation dynamics and enhanced coupling of light to TE plasmons in graphene  

E-Print Network [OSTI]

Unusual Otto excitation dynamics and enhanced coupling of light to TE plasmons in graphene Daniel R are a unique and unusual aspect of graphene's plasmonic response that are predicted to manifest when the sign plasmons in graphene. We show that TE plasmons supported by graphene in an Otto configuration unusually

Park, Namkyoo

314

Development of Nanostructures in Thermoelectric Pb-Te-Sb Alloys , L. A. Collins2  

E-Print Network [OSTI]

in the figure of merit of thermoelectric materials. Fabrication of nanostructured thermoelectric materials via the discovery of materials with a high thermoelectric figure of merit, zT, defined as S2 T/, where immiscible thermoelectric materials: PbTe-Sb2Te3. This ternary system was selected for investigation because

315

Bandgap engineering of CdxZn1xTe nanowires Keivan Davami,a  

E-Print Network [OSTI]

junction. These structures have been used in solar cells2,3 and eld effect transistors.4 Alloy nanowires device fabrication. Alloy nano- wires in various systems have been used to construct solar cells into a furnace. In a set of trial experiments, ZnTe (99.99% Aldrich) and CdTe (99.99% Aldrich) source powders

Cuniberti, Gianaurelio

316

Epitaxial growth of CdTe thin film on cube-textured Ni by metal-organic chemical vapor deposition  

SciTech Connect (OSTI)

CdTe thin film has been grown by metalorganic chemical vapor deposition (MOCVD) on Ni(100) substrate. Using x-ray pole figure measurements we observed the epitaxial relationship of {111}CdTe// {001}Ni with [110]CdTe//[010]Ni and [112] CdTe//[100]Ni. The 12 diffraction peaks in the (111) pole figure of CdTe film and their relative positions with respect to the four peak positions in the (111) pole figure of Ni substrate are consistent with four equivalent orientational domains of CdTe with three to four superlattice match of about 0.7% in the [110] direction of CdTe and the [010] direction of Ni. The electron backscattered diffraction (EBSD) images show that the CdTe domains are 30 degrees orientated from each other.

GIARE, C [Rensselaer Polytechnic Institute (RPI); RAO, S [Rensselaer Polytechnic Institute (RPI); RILEY, M [Rensselaer Polytechnic Institute (RPI); CHEN, L [Rensselaer Polytechnic Institute (RPI); Goyal, Amit [ORNL; BHAT, I [Rensselaer Polytechnic Institute (RPI); LU, T [Rensselaer Polytechnic Institute (RPI); WANG, G [Rensselaer Polytechnic Institute (RPI)

2012-01-01T23:59:59.000Z

317

ZnO/Sn:In2O3 and ZnO/CdTe band offsets for extremely thin absorber...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ZnOSn:In2O3 and ZnOCdTe band offsets for extremely thin absorber photovoltaics . ZnOSn:In2O3 and ZnOCdTe band offsets for extremely thin absorber photovoltaics . Abstract: Band...

318

Band gap of CdTe and Cd{sub 0.9}Zn{sub 0.1}Te crystals  

SciTech Connect (OSTI)

The band gap E{sub g} of the CdTe and Cd{sub 0.9}Zn{sub 0.1}Te crystals and its temperature dependence are determined by optical methods. This is motivated by considerable contradictoriness of the published data, which hampers the interpretation and calculation of characteristics of detectors of X-ray and {gamma} radiation based on these materials (E{sub g} = 1.39-1.54 and 1.51-1.6 eV for CdTe and Cd{sub 0.9}Zn{sub 0.1}Te, respectively). The used procedure of determination of E{sub g} is analyzed from the viewpoint of the influence of the factors leading to inaccuracies in determination of its value. The measurements are performed for well-purified high-quality samples. The acquired data for CdTe (E{sub g} = 1.47-1.48 eV) and Cd{sub 0.9}Zn{sub 0.1}Te (E{sub g} = 1.52-1.53 eV) at room temperature substantially narrow the range of accurate determination of E{sub g}.

Kosyachenko, L. A., E-mail: lakos@chv.ukrpact.net; Sklyarchuk, V. M.; Sklyarchuk, O. V.; Maslyanchuk, O. L. [Chernovtsy National University (Ukraine)

2011-10-15T23:59:59.000Z

319

Phase formation and phase transformations in Bi-Te films with nanoscale thickness  

SciTech Connect (OSTI)

The processes of phase formation are studied in a binary Bi-Te system using the kinematic electron diffraction technique. It is established that, in the case of both simultaneous and layer-by-layer deposition of bismuth and tellurium and irrespective of the order of their deposition, phases with compositions Bi{sub 2}Te{sub 3} and BiTe are formed at the condensation plane in the amorphous and crystalline state, respectively. The amorphous Bi{sub 2}Te{sub 3} phase is stable at room temperature and crystallizes at a temperature of 423 K. It is shown that ordering of the phase BiTe is not a consequence of atomic order of the structure; rather, it is caused by the real structure of the object (by blocks)

Akhmedov, K. M. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)], E-mail: axmedovqurban@rambler.ru

2008-09-15T23:59:59.000Z

320

Growth of CdTe thin films on graphene by close-spaced sublimation method  

SciTech Connect (OSTI)

CdTe thin films grown on bi-layer graphene were demonstrated by using the close-spaced sublimation method, where CdTe was selectively grown on the graphene. The density of the CdTe domains was increased with increasing the number of the defective sites in the graphene, which was controlled by the duration of UV exposure. The CdTe growth rate on the bi-layer graphene electrodes was 400?nm/min with a bandgap energy of 1.451.49?eV. Scanning electron microscopy, micro-Raman spectroscopy, micro-photoluminescence, and X-ray diffraction technique were used to confirm the high quality of the CdTe thin films grown on the graphene electrodes.

Jung, Younghun; Yang, Gwangseok; Kim, Jihyun, E-mail: hyunhyun7@korea.ac.kr [Department of Chemical and Biological Engineering, Korea University, Seoul 136-701 (Korea, Republic of)] [Department of Chemical and Biological Engineering, Korea University, Seoul 136-701 (Korea, Republic of); Chun, Seungju; Kim, Donghwan [Department of Materials Science and Engineering, Korea University, Seoul 136-701 (Korea, Republic of)] [Department of Materials Science and Engineering, Korea University, Seoul 136-701 (Korea, Republic of)

2013-12-02T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

Cd-rich and Te-rich low-temperature photoluminescence in cadmium telluride  

SciTech Connect (OSTI)

Low-temperature photoluminescence emission spectra were measured in cadmium telluride (CdTe) samples in which composition was varied to promote either Cd or Te-rich stoichiometry. The ability to monitor stoichiometry is important, since it has been shown to impact carrier recombination. Te-rich samples show transitions corresponding to acceptor-bound excitons (?1.58?eV) and free-electron to acceptor transitions (?1.547?eV). In addition to acceptor-bound excitons, Cd-rich samples show transitions assigned to donor-bound excitons (1.591?eV) and Te vacancies at 1.552?eV. Photoluminescence is a noninvasive way to monitor stoichiometric shifts induced by post-deposition anneals in polycrystalline CdTe thin films deposited by close-spaced sublimation.

Albin, D. S., E-mail: david.albin@nrel.gov; Kuciauskas, D.; Ma, J.; Metzger, W. K.; Burst, J. M.; Moutinho, H. R.; Dippo, P. C. [National Renewable Energy Laboratory, Golden, Colorado 80401 (United States)

2014-03-03T23:59:59.000Z

322

TenTen: A New Array of Multi-TeV Imaging Cherenkov Telescopes  

E-Print Network [OSTI]

The exciting results from H.E.S.S. point to a new population of gamma-ray sources at energies E > 10 TeV, paving the way for future studies and new discoveries in the multi-TeV energy range. Connected with these energies is the search for sources of PeV cosmic-rays (CRs) and the study of multi-TeV gamma-ray production in a growing number of astrophysical environments. TenTen is a proposed stereoscopic array (with a suggested site in Australia) of modest-sized (10 to 30m^2) Cherenkov imaging telescopes with a wide field of view (8 to 10deg diameter) optimised for the E~10 to 100 TeV range. TenTen will achieve an effective area of ~10 km^2 at energies above 10 TeV. We outline here the motivation for TenTen and summarise key performance parameters.

Rowell, G; Clay, R; Dawson, B; Denman, J; Protheroe, R; Smith, A G K; Thornton, G; Wild, N

2007-01-01T23:59:59.000Z

323

TenTen: A New Array of Multi-TeV Imaging Cherenkov Telescopes  

E-Print Network [OSTI]

The exciting results from H.E.S.S. point to a new population of gamma-ray sources at energies E > 10 TeV, paving the way for future studies and new discoveries in the multi-TeV energy range. Connected with these energies is the search for sources of PeV cosmic-rays (CRs) and the study of multi-TeV gamma-ray production in a growing number of astrophysical environments. TenTen is a proposed stereoscopic array (with a suggested site in Australia) of modest-sized (10 to 30m^2) Cherenkov imaging telescopes with a wide field of view (8 to 10deg diameter) optimised for the E~10 to 100 TeV range. TenTen will achieve an effective area of ~10 km^2 at energies above 10 TeV. We outline here the motivation for TenTen and summarise key performance parameters.

G. Rowell; V. Stamatescu; R. Clay; B. Dawson; J. Denman; R. Protheroe; A. G. K. Smith; G. Thornton; N. Wild

2007-10-10T23:59:59.000Z

324

V-183: Cisco TelePresence TC and TE Bugs Let Remote Users Deny Service and  

Broader source: Energy.gov (indexed) [DOE]

3: Cisco TelePresence TC and TE Bugs Let Remote Users Deny 3: Cisco TelePresence TC and TE Bugs Let Remote Users Deny Service and Remote Adjacent Authenticated Users Gain Root Shell Access V-183: Cisco TelePresence TC and TE Bugs Let Remote Users Deny Service and Remote Adjacent Authenticated Users Gain Root Shell Access June 21, 2013 - 6:00am Addthis PROBLEM: Three vulnerabilities were reported in Cisco TelePresence TC and TE PLATFORM: The following product models are affected by the vulnerabilities: Cisco TelePresence MX Series Cisco TelePresence System EX Series Cisco TelePresence Integrator C Series Cisco TelePresence Profiles Series running Cisco TelePresence Quick Set Series Cisco IP Video Phone E20 ABSTRACT: Cisco TelePresence TC and TE Software contain two vulnerabilities in the implementation of the Session Initiation Protocol (SIP) that could allow an

325

CdTe Feedstock Development and Validation: Cooperative Research and Development Final Report, CRADA Number CRD-08-00280  

SciTech Connect (OSTI)

The goal of this work was to evaluate different CdTe feedstock formulations (feedstock provided by Redlen) to determine if they would significantly improve CdTe performance with ancillary benefits associated with whether changes in feedstock would affect CdTe cell processing and possibly reliability of cells. Feedstock also included attempts to intentionally dope the CdTe with pre-selected elements.

Albin, D.

2011-05-01T23:59:59.000Z

326

Investigation of Junction Properties of CdS/CdTe Solar Cells and their Correlation to Device Properties (Presentation)  

SciTech Connect (OSTI)

The objective of the Junction Studies are: (1) understand the nature of the junction in the CdTe/CdS device; (2) correlate the device fabrication parameters to the junction formation; and (3) develop a self consistent device model to explain the device properties. Detailed analysis of CdS/CdTe and SnO{sub 2}/CdTe devices prepared using CSS CdTe is discussed.

Dhere, R. G.; Zhang, Y.; Romero, M. J.; Asher, S. E.; Young, M.; To, B.; Noufi, R.; Gessert, T. A.

2008-05-01T23:59:59.000Z

327

HIGH EFFICIENCY CdTe/CdS THIN FILM SOLAR CELLS WITH A NOVEL BACK-CONTACT Nicola Romeoa  

E-Print Network [OSTI]

HIGH EFFICIENCY CdTe/CdS THIN FILM SOLAR CELLS WITH A NOVEL BACK-CONTACT Nicola Romeoa , Alessio in the fabrication of high efficiency CdTe/CdS thin film solar cells. Usually, it is done first by etching the Cd: Back Contact, CdTe, Thin Film 1 INTRODUCTION The back contact in the CdTe/CdS thin film solar cell

Romeo, Alessandro

328

OPTIMIZATION OF GRADED BAND GAP CdHgTe SOLAR CELLS A. BOUAZZI (*), Y. MARFAING and J. MIMILA-ARROYO  

E-Print Network [OSTI]

limited to 6 % in Cu2Te/CdTe junctions [4, 5], 7.9 % in CdS/CdTe heterojunctions and 6 % in homojunc with uniform doping followed by a base region with uni- form gap and doping. Our goal is to find the optimum

Boyer, Edmond

329

PHONONS-DEFECTS INTERACTIONS IN CdTe J. L. TISSOT, P. L. VUILLERMOZ and A. LAUGIER  

E-Print Network [OSTI]

267 PHONONS-DEFECTS INTERACTIONS IN CdTe J. L. TISSOT, P. L. VUILLERMOZ and A. LAUGIER Laboratoire Einstein, 69621 Villeurbanne Cedex, France Résumé. 2014 Les défauts électriquement inactifs dans CdTe ont of electrically inactive defects has been performed on CdTe single crystals by two different experimental

Boyer, Edmond

330

Interference effects in photoreflectance and contactless electroreflectance spectra of CdTe films grown on Si substrate  

E-Print Network [OSTI]

Interference effects in photoreflectance and contactless electroreflectance spectra of CdTe films and contactless electroreflectance CER spectra of CdTe films grown on Si substrate, at energies below the band gap of CdTe. The simultaneous observation of OF in the reflectance (R) spectrum having the same period

Ghosh, Sandip

331

PHYSICAL REVIEW B 84, 205305 (2011) Spin-phonon coupling in single Mn-doped CdTe quantum dot  

E-Print Network [OSTI]

PHYSICAL REVIEW B 84, 205305 (2011) Spin-phonon coupling in single Mn-doped CdTe quantum dot C. L dynamics of a single Mn atom in a laser driven CdTe quantum dot is addressed theoretically. Recent of single Mn-doped CdTe dots, information about the quantum spin state of a single Mn atom is extracted from

Paris-Sud XI, Université de

332

Quantifying electron-phonon coupling in CdTe12xSex nanocrystals via coherent phonon manipulation  

E-Print Network [OSTI]

Quantifying electron-phonon coupling in CdTe12xSex nanocrystals via coherent phonon manipulation B to manipulate coherent phonon excitation and quantify the strength of electron-phonon coupling in CdTe1?xSex nanocrystals (NCs). Raman active CdSe and CdTe longitudinal optical phonon (LO) modes are excited and probed

Xu, Xianfan

333

Effect of Shunts on Thin-Film CdTe Module Performance. Galymzhan T. Koishiyev, James R. Sites  

E-Print Network [OSTI]

Effect of Shunts on Thin-Film CdTe Module Performance. Galymzhan T. Koishiyev, James R. Sites circuit model is used to analyze the impact of shunts on basic performance parameters of a CdTe thin with each other in their effect on the module. To address these questions, a 2-D circuit model of a CdTe

Sites, James R.

334

CdTe EPITAXIAL FILMS AND THEIR PROPERTIES S. N. MAXIMOVSKY, I. P. REVOCATOVA, V. M. SALMAN,  

E-Print Network [OSTI]

161 CdTe EPITAXIAL FILMS AND THEIR PROPERTIES S. N. MAXIMOVSKY, I. P. REVOCATOVA, V. M. SALMAN, M CdTe films of p and n type conductivity with a given devia- tion of film composition from PHYSIQUE APPLIQU?E TOME 12, F?VRIER 1977, PAGE 161 The design of reliable CdTe nuclear radiation counters

Paris-Sud XI, Université de

335

Post-Synthesis Crystallinity Tailoring of Water-Soluble Polymer Encapsulated CdTe Nanoparticles using Rapid Thermal Annealing  

E-Print Network [OSTI]

Post-Synthesis Crystallinity Tailoring of Water-Soluble Polymer Encapsulated CdTe Nanoparticles The crystallinity of colloidal CdTe nanoparticles has been enhanced post synthesis. This control over CdTe NPs have been demonstrated suitable for use in applications involving efficient solar cells

336

A SMALL PORTABLE DETECTOR HEAD USING MIS-CONTACTED CdTe FOR X-RAY SPECTROMETRY  

E-Print Network [OSTI]

339 A SMALL PORTABLE DETECTOR HEAD USING MIS-CONTACTED CdTe FOR X-RAY SPECTROMETRY P. EICHINGER for semiconductor radiation detectors is discussed. A versatile head consisting of a 2 mm thick, 10 mm diameter CdTe and its applica- tion to CdTe and CdS has already been published [2, 3], but because of the many

Paris-Sud XI, Université de

337

Substrate effect on CdTe layers grown by metalorganic vapor phase N. V. Sochinskiia),b)  

E-Print Network [OSTI]

Substrate effect on CdTe layers grown by metalorganic vapor phase epitaxy N. V. Sochinskiia for publication 30 December 1996 CdTe layers were grown by metalorganic vapor phase epitaxy MOVPE on different substrates like sapphire, GaAs, and CdTe wafers. The growth was carried out at the temperature 340 °C

Viña, Luis

338

Photoluminescence Studies on Cu and O Defects in Crystalline and Thin-film CdTe Caroline R. Corwine,1  

E-Print Network [OSTI]

Photoluminescence Studies on Cu and O Defects in Crystalline and Thin-film CdTe Caroline R. Corwine Laboratory, Golden, CO 80401 ABSTRACT Polycrystalline thin-film CdTe is one of the leading materials used various process steps alter defect states in the CdTe layer. Low-temperature photoluminescence (PL

Sites, James R.

339

CARRIER TRANSPORT AND TRAPPING PROCESS IN HIGH-RESISTIVITY CdTe GROWN BY A MODIFIED THM  

E-Print Network [OSTI]

189 CARRIER TRANSPORT AND TRAPPING PROCESS IN HIGH-RESISTIVITY CdTe GROWN BY A MODIFIED THM T, PAGE 189 1. Introduction. - Recent results of studies on carrier transport in high-purity CdTe crystals current measure- ments. This paper discusses trapping and detrapping effects in high-resistivity CdTe

Paris-Sud XI, Université de

340

Micron-Resolution Photocurrent of CdTe Solar Cells Using Multiple Wavelengths Jason F. Hiltner1  

E-Print Network [OSTI]

Micron-Resolution Photocurrent of CdTe Solar Cells Using Multiple Wavelengths Jason F. Hiltner1 variations in the quantum efficiency near the CdTe band gap, which track intermixing of Cd wavelengths with energies near and slightly below the CdTe band gap (1.5 eV) to be used. Temperature tuning

Sites, James R.

Note: This page contains sample records for the topic "te po lv" 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

Paul Sellin, Centre for Nuclear and Radiation Physics Charge transport and mobility mapping in CdTe  

E-Print Network [OSTI]

Paul Sellin, Centre for Nuclear and Radiation Physics Charge transport and mobility mapping in CdTe, JAP 92 (2002) 3198-3206 Introduction Motivation for this Work: r THM-grown CdTe supplied by Eurorad signal response? r Pulse shape analysis can identify regions of trapping or reduced mobility r Does CdTe

Sellin, Paul

342

Trapping phosphate anions inside the [Ag{sub 4}I]{sup 3+} framework: Structure, bonding, and properties of Ag{sub 4}I(PO{sub 4})  

SciTech Connect (OSTI)

Orange-red Ag{sub 4}I(PO{sub 4}) crystallizes in the monoclinic system, space group P2{sub 1}/m (No. 11), with the unit cell dimensions a=9.0874(6) A, b=6.8809(5) A, c=11.1260(7) A, {beta}=109.450(1){sup o}, and Z=4. The crystal structure is fully ordered; it comprises the silver-iodine three-dimensional positively charged framework hosting the tetrahedral PO{sub 4}{sup 3-} guest anions. The framework features high coordination numbers for iodine and manifold Ag-Ag bonds ranging from 3.01 to 3.46 A. The Ag-Ag interaction is bonding, it involves silver 4d and 5s orbitals lying, together with the orbitals of iodine, just below the Fermi level. Though the orbitals of silver and iodine define the conducting properties of the title compound, the interaction between the framework and the guest anions is also important and is responsive to the number of the silver atoms surrounding the PO{sub 4}{sup 3-} tetrahedra. Ag{sub 4}I(PO{sub 4}) melts incongruently at 591 K and produces a mixture of the silver phosphate and an amorphous phase upon cooling. Pure Ag{sub 4}I(PO{sub 4}) is a poor conductor with a room temperature conductivity of 3x10{sup -6} S m{sup -1}. The discrepancies between the properties observed here and those reported previously in the literature are discussed. - Graphical abstract: Regular [PO{sub 4}] tetrahedra fill large voids in the Ag-I framework to form a host-guest compound, Ag{sub 4}I(PO{sub 4}). It has a perfectly ordered crystal structure, atypical for this kind of compounds, rendering the study of the manifold Ag-Ag bonds and the host-guest interaction. However, this ordering leads to low ionic conductivity.

Oleneva, Olga S.; Kirsanova, Maria A.; Shestimerova, Tatiana A.; Abramchuk, Nikolay S.; Davliatshin, Dmitry I.; Bykov, Mikhail A. [Department of Chemistry, Lomonosov Moscow State University (Russian Federation); Dikarev, Evgeny V. [Department of Chemistry, University at Albany (United States); Shevelkov, Andrei V. [Department of Chemistry, Lomonosov Moscow State University (Russian Federation)], E-mail: shev@inorg.chem.msu.ru

2008-01-15T23:59:59.000Z

343

Electric dipole moment in KH{sub 2}PO{sub 4} systematically modified by proton irradiation  

SciTech Connect (OSTI)

We have carried out an impedance spectroscopy study on a series of proton-irradiated KH{sub 2}PO{sub 4} (KDP) systems. A systematic modification was observed in the transverse dipole moment of the proton-irradiated KDP systems, associated with hydrogen-ion displacements, as obtained from dielectric constant measurements by using a mean-field approximation. Besides, intercorrelation of the charge transport with the dielectric properties was revealed, both having closely to do with the hydrogen-bond modification.

Jin Kweon, Jung; Lee, Cheol Eui [Department of Physics and Institute for Nano Science, Korea University, Seoul 136-713 (Korea, Republic of); Noh, S. J.; Kim, H. S. [Department of Applied Physics, Dankook University, Yongin 448-701 (Korea, Republic of)

2012-01-01T23:59:59.000Z

344

Laboratory Results Area Lab ID Th-230 Ra-226 Pb-210 Po-210 U-238 ANSI Sum1  

E-Print Network [OSTI]

Laboratory Results Area Lab ID Th-230 Ra-226 Pb-210 Po-210 U-238 ANSI Sum1 Gamma Reading Area H Area I Confirmation 0405025-2 1.66 5.13 2.88 3.48 0.95 4.55 9741 Clear 11th Street 0405215-3 1.28 4.59 3.55 3.55 1.68 4.37 ++ Area K 0404284-2 14.8 43.4 17.4 13.8 10.6 80.8 15146 Estimated - lab

345

ATLAS SUSY search prospects at 10 TeV  

E-Print Network [OSTI]

The search for physics beyond the Standard Model (BSM) is one of the most important goals for the general purpose detector ATLAS at the Large Hadron Collider at CERN. Already with early LHC data, the ATLAS experiment should be sensitive to discover physics beyond the Standard Model. This paper summarizes the prospects of the ATLAS experiment to find experimental evidence for Supersymmetry (SUSY) and Universal Extra Dimensions (UED) in channels with jets, leptons and missing transverse energy for an integrated luminosity of L = 200pb-1 at a centre-of-mass energy sqrt s = 10 TeV. Only a selection of the results is presented focussing on the the discovery reach for inclusive searches.

Janet Dietrich

2009-10-29T23:59:59.000Z

346

Prospects for Electroweakino Discovery at a 100 TeV Hadron Collider  

E-Print Network [OSTI]

We investigate the prospects of discovering split Supersymmetry at a future 100 TeV proton-proton collider through the direct production of electroweakino next-to-lightest-supersymmetric-particles (NLSPs). We focus on signatures with multi-lepton and missing energy: $3\\ell$, opposite-sign dileptons and same-sign dileptons. We perform a comprehensive study of different electroweakino spectra. A 100 TeV collider with 3000/fb data is expected to exclude Higgsino thermal dark matter candidates with $m_{\\rm{LSP}}\\sim 1 $ TeV if Wino NLSPs are lighter than about 3.2 TeV. The $3\\ell$ search usually offers the highest mass reach, which varies in the range of (2-4) TeV depending on scenarios. In particular, scenarios with light Higgsinos have generically simplified parameter dependences. We also demonstrate that, at a 100 TeV collider, lepton collimation becomes a crucial issue for NLSPs heavier than about 2.5 TeV. We finally compare our results with the discovery prospects of gluino pair productions and deduce which ...

Gori, Stefania; Wang, Lian-Tao; Wells, James D

2014-01-01T23:59:59.000Z

347

Prospects for Electroweakino Discovery at a 100 TeV Hadron Collider  

E-Print Network [OSTI]

We investigate the prospects of discovering split Supersymmetry at a future 100 TeV proton-proton collider through the direct production of electroweakino next-to-lightest-supersymmetric-particles (NLSPs). We focus on signatures with multi-lepton and missing energy: $3\\ell$, opposite-sign dileptons and same-sign dileptons. We perform a comprehensive study of different electroweakino spectra. A 100 TeV collider with 3000/fb data is expected to exclude Higgsino thermal dark matter candidates with $m_{\\rm{LSP}}\\sim 1 $ TeV if Wino NLSPs are lighter than about 3.2 TeV. The $3\\ell$ search usually offers the highest mass reach, which varies in the range of (2-4) TeV depending on scenarios. In particular, scenarios with light Higgsinos have generically simplified parameter dependences. We also demonstrate that, at a 100 TeV collider, lepton collimation becomes a crucial issue for NLSPs heavier than about 2.5 TeV. We finally compare our results with the discovery prospects of gluino pair productions and deduce which SUSY breaking model can be discovered first by electroweakino searches.

Stefania Gori; Sunghoon Jung; Lian-Tao Wang; James D. Wells

2014-10-23T23:59:59.000Z

348

Studies on optoelectronic properties of DC reactive magnetron sputtered CdTe thin films  

SciTech Connect (OSTI)

Cadmium telluride continues to be a leading candidate for the development of cost effective photovoltaics for terrestrial applications. In the present work two individual metallic targets of Cd and Te were used for the deposition of CdTe thin films on mica substrates from room temperature to 300 C by DC reactive magnetron sputtering method. XRD patterns of CdTe thin films deposited on mica substrates exhibit peaks at 2? = 27.7, 46.1 and 54.6, which corresponds to reflection on (1 1 1), (2 2 0) and (3 1 1) planes of CdTe cubic structure. The intensities of XRD patterns increases with the increase of substrate temperature upto 150 C and then it decreases at higher substrate temperatures. The conductivity of CdTe thin films measured from four probe method increases with the increase of substrate temperature. The activation energies (?E) are found to be decrease with the increase of substrate temperature. The optical transmittance spectra of CdTe thin films deposited on mica have a clear interference pattern in the longer wavelength region. The films have good transparency (T > 85 %) exhibiting interference pattern in the spectral region between 1200 2500 nm. The optical band gap of CdTe thin films are found to be in the range of 1.48 1.57. The refractive index, n decreases with the increase of wavelength, ?. The value of n and k increases with the increase of substrate temperature.

Kumar, B. Rajesh, E-mail: rajphyind@gmail.com [Department of Physics, Sri Venkateswara University, Tirupati - 517 502, A.P, India and Department of Physics, Sri Krishnadevaraya University, Anantapur - 515 003, A.P (India); Hymavathi, B.; Rao, T. Subba [Department of Physics, Sri Krishnadevaraya University, Anantapur - 515 003, A.P (India)

2014-01-28T23:59:59.000Z

349

Simulation of relaxation times and energy spectra of the CdTe/Hg{sub 1-x}Cd{sub x}Te/CdTe quantum well for variable valence band offset, well width, and composition x  

SciTech Connect (OSTI)

The dependences of relaxation times and energy spectrum of the CdTe/Hg{sub 1-x}Cd{sub x}Te/CdTe quantum well (QW) on its parameters were simulated in the cadmium molar fraction range 0 < x < 0.16. It was found that the x increase from 0 to 0.16 changes electron wave function localization in the QW. A criterion for determining the number of interface levels of localized electrons depending on QW parameters was obtained. The effect of a sharp (by two orders of magnitude) increase in the relaxation time of localized electrons was detected at small QW widths and x close to 0.16.

Melezhik, E. O., E-mail: emelezhik@gmail.com; Gumenjuk-Sichevska, J. V.; Sizov, F. F. [National Academy of Sciences, Lashkariev Institute of Semiconductor Physics (Ukraine)

2010-10-15T23:59:59.000Z

350

Heating induced structural and chemical behavior of KD{sub 2}PO{sub 4} in the 25 C215 C temperature range  

SciTech Connect (OSTI)

We have used powder x-ray diffraction (XRD) to investigate the structural and chemical modifications undergone by KD{sub 2}PO{sub 4} (DKDP) upon heating from room temperature to 215 C. Full-profile (Le Bail) analysis of our temperature-resolved data shows no evidence of polymorphic structural transitions or deuteriumhydrogen isotope exchange occurring below T{sub s} = 185 C. The lattice parameters of DKDP vary smoothly upon heating to T{sub s} and are 0.2% to 0.6% greater than those of its isostructural hydrogenated counterpart KH{sub 2}PO{sub 4} (KDP). In addition, XRD isotherms collected at T{sub s} demonstrate the structural and chemical stability of the title compound at this temperature over a 10.5 h time period. Upon further heating, however, the tetragonal DKDP phase becomes unstable, as evidenced by its transition to a monoclinic DKDP modification and eventual chemical decomposition via dehydration. - Highlights: Structural and chemical behavior of KD{sub 2}PO{sub 4} is investigated upon heating to 215 C No polymorphic transitions or deuterium-hydrogen isotope exchange below T{sub s} = 185 C KD{sub 2}PO{sub 4} is structurally and chemically stable at T{sub s} over a 10.5 h time period KD{sub 2}PO{sub 4} chemically decomposes via dehydration upon heating above T{sub d} = 195 C.

Botez, Cristian E., E-mail: cbotez@utep.edu; Morris, Joshua L.; Encerrado Manriquez, Andres J.; Anchondo, Adan

2013-09-15T23:59:59.000Z

351

Quantum cutting by cooperative energy transfer in YbxY1?xPO4:Tb3+  

Science Journals Connector (OSTI)

We present experimental evidence for cooperative energy transfer from Tb3+ to two Yb3+ ions and a determination of the energy-transfer rate. Energy transfer from Tb3+ to Yb3+ was investigated by luminescence measurements on (YbxY1?x)PO4 doped with 1% Tb3+. Time-resolved luminescence experiments were analyzed using Monte Carlo simulations based on theories for phonon-assisted, cooperative, and accretive energy transfer. The luminescence decay curves of the D45 emission from Tb3+ show an excellent agreement with simulations based on cooperative energy transfer via dipole-dipole interaction, while a phonon-assisted or an accretive energy-transfer mechanism cannot explain the experimental results. The energy-transfer rate to two nearest-neighbor Yb3+ ions is 0.26ms?1. This corresponds to an upper limit of the energy-transfer efficiency of 88% in YbPO4. Application of cooperative energy transfer has prospects for increasing the energy efficiency of crystalline Si solar cells by photon doubling of the high energy part of the solar spectrum.

P. Vergeer; T. J. H. Vlugt; M. H. F. Kox; M. I. den Hertog; J. P. J. M. van der Eerden; A. Meijerink

2005-01-31T23:59:59.000Z

352

Chlorapatite (Ca5(PO4)3Cl) Characterization?by?XPS:?An?Environmentally Important Secondary Mineral  

Science Journals Connector (OSTI)

Chlorapatite (Ca5(PO4)3Cl) is an environmentally important secondary phosphate mineral one of the apatite family of minerals. It is of significance geochemically in ore soil sedimentary and waste systems. We have used XPS to study the binding energy of primary photoelectrons from the powder of a well-fractured massive block sample. The sample is from Telemark Norway and is part of the Harvard University Mineralogical Museums collection. General survey and high-resolution spectra were collected using a Perkin Elmer Physical Electronics 5200C spectrometer. Adventitious carbon was used for energy referencing. Charge corrected binding energies for the photoelectrons of chlorapatite (Ca 2p 3/2 Ca 2p 1/2 P 2p 3/2 P 2p 1/2 P?2s O 1s Cl 2p 3/2 and Cl 2p 1/2) are reported. The charge corrected binding energy for Si 2p photoelectrons of either isomorphically substituted silicate (e.g. Ca5(PO4 SiO4)3Cl) or host quartz present in the natural sample is also reported. The observed binding energies are useful in identifying environmentally important calcium phosphate minerals such as chlorapatite in ore bodies soils sediments and phosphate-stabilized waste systems.

T. Taylor Eighmy; Amy E. Kinner; Elisabeth L. Shaw; J. Dykstra Eusden Jr.; Carl A. Francis

1999-01-01T23:59:59.000Z

353

Concentrations of /sup 207/Bi and /sup 210/Pb-/sup 210/Bi-/sup 210/Po disequilibrium in fish  

SciTech Connect (OSTI)

Radioactive /sup 207/Bi, produced during nuclear testing at the Pacific Proving Grounds, concentrates in the muscle tissue and organs of goatfish and certain pelagic lagoon fish from Bikini and Enewetak Atolls. It is reasonable to expect that fish capable of accumulating /sup 207/Bi could also be efficient accumulators of other bismuth isotopes - namely /sup 210/Bi, the daughter of naturally occurring /sup 210/Pb. Therefore, /sup 210/Bi and consequently /sup 210/Po, the decay product of /sup 210/Bi, would be expected in notable excess over the precursor /sup 210/Pb in specific tissues. To test this assumption, we compared concentrations of /sup 210/Pb, /sup 210/Bi, and /sup 210/Po in muscle, liver, and bone separated from some reef species from the Marshall Islands. Concentrations of /sup 210/Bi in muscle and liver were found to exceed those of its precursor by factors of 2 to 15. The excess /sup 210/Bi in some species, however, is not from the environmental sources (either food or water) from which /sup 207/Bi is derived. The data suggest that the excess /sup 210/Bi may be translocated to muscle and liver tissue following the decay of /sup 210/Pb in bone.

Noshkin, V.E.; Wong, K.M.; Eagle, R.J.; Jokela, T.A.

1984-10-01T23:59:59.000Z

354

Effect of low energy ion irradiation on CdTe crystals: Luminescence enhancement  

SciTech Connect (OSTI)

In this work we show that low energy ion sputtering is a very efficient technique as a cleaning process for CdTe substrates. We demonstrate, by using several techniques like grazing-angle x-ray diffraction, cathodoluminescence, microluminescence, and micro-Raman spectroscopy that the luminescent properties of CdTe substrates can be very much increased when CdTe surfaces are irradiated with low energy Argon ions. We postulate that this enhancement is mainly due to the removal of surface damage induced by the cutting and polishing processes. The formation of a low density of nonluminescent aggregates after the sputtering process has also been observed.

Olvera, J.; Plaza, J. L.; Dios, S. de; Dieguez, E. [Departamento de Fisica de Materiales, Laboratorio de Crecimiento de Cristales, Facultad de Ciencias, Universidad Autonoma de Madrid, Cantoblanco, 28049 Madrid (Spain); Martinez, O.; Avella, M. [Departamento Fisica Materia Condensada, GdS-Optronlab Group, Universidad de Valladolid, Edificio I-D, Paseo de Belen 1, 47011 Valladolid (Spain)

2010-12-15T23:59:59.000Z

355

Chapter 1.19: Cadmium Telluride Photovoltaic Thin Film: CdTe  

SciTech Connect (OSTI)

The chapter reviews the history, development, and present processes used to fabricate thin-film, CdTe-based photovoltaic (PV) devices. It is intended for readers who are generally familiar with the operation and material aspects of PV devices but desire a deeper understanding of the process sequences used in CdTe PV technology. The discussion identifies why certain processes may have commercial production advantages and how the various process steps can interact with each other to affect device performance and reliability. The chapter concludes with a discussion of considerations of large-area CdTe PV deployment including issues related to material availability and energy-payback time.

Gessert, T. A.

2012-01-01T23:59:59.000Z

356

Search for Neutral Heavy Leptons in the NuTeV Experiment at Fermilab  

E-Print Network [OSTI]

Preliminary results from a search for neutral heavy leptons in the NuTeV experiment at Fermilab. The upgraded NuTeV neutrino detector for the 1996-1997 run included an instrumented decay region for the NHL search which, combined with the NuTeV calorimeter, allows detection in several decay modes (mu-mu-nu, mu-e-nu, mu-pi, e-pi, and e-e-nu). We see no evidence for neutral heavy leptons in our current search in the mass range from 0.3 GeV to 2.0 GeV decaying into final states containing a muon.

NuTeV Collaboration; R. B. Drucker

1998-11-23T23:59:59.000Z

357

Microsoft Word - Report Cover A08LV023.doc  

Broader source: Energy.gov (indexed) [DOE]

Report on the Audit of National Security Report on the Audit of National Security Technologies, LLC Costs Claimed under Department of Energy Contract No. DE-AC52-06NA25946 for Fiscal Year 2007 OAS-FC-09-01 May 2009 Department of Energy Washington, DC 20585 May 18,2009 MEMORANDUM FOR THE MANAGER, NEVADA SITE OFFICE 4p.5h- FROM: George W. Collard ~ssistant Inspector General for Performance Audits Office of Inspector General SUBJECT: INFORMATION: Audit Report on "Audit of National Security Technologies, LLC Costs Claimed Under Contract No. DE-AC52-06NA25946 for Fiscal Year 2007" BACKGROUND National Security Technologies, LLC (NSTec), the management and operating contractor of the Nevada Test Site (Test Site), assumed its management responsibilities on July 1,2006, under

358

Fall 2008 Electives COURSE # CR LV COURSE TITLE SCHEDULE INSTRUCTOR  

E-Print Network [OSTI]

74601 3 G RAWLS' POLITICAL PHIL TH 4 30-6 15 RASMUSSEN PL76101 3 G HEGEL/PHENOMENOL/SPIRIT M 6 30-8 15

Huang, Jianyu

359

http://oilab.seas.wustl.edu --1 2007, LV WANG  

E-Print Network [OSTI]

WANG Motivation for Optical ImagingMotivation for Optical Imaging · Safety -- Non-ionizing radiation DOT, UOT, PAT OM, SNOM OCT Simulation software MCML available from http://oilab.seas.wustl.edu Soft

Wang, Lihong

360

7KLV LV DQ DXWKRUGHSRVLWHG YHUVLRQ SXEOLVKHG LQ KWWSRDWDRXQLYWRXORXVHIU (SULQWV ,'  

E-Print Network [OSTI]

metabolites, 4-hydroxycyclophophosphamide, aldophospha- mide, acrolein and phosphoramide mustard (Joqueviel et

Mailhes, Corinne

Note: This page contains sample records for the topic "te po lv" 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

Hydrothermal synthesis and structure of an open framework Co0.7Zn1.3(PO4)2(NH3CH2CH2NH3) and Co6.2(OH)4(PO4)4Zn1.80, a new adamite type phase  

Science Journals Connector (OSTI)

The hydrothermal reaction of cobalt(II)oxalate di-hydrate, zinc oxide, and triethyl-orthophosphate, using 1,2-diaminoethane as structure directing template in water, produced two major crystal phases in almost equal amount: the purple crystals of [NH3CH2CH2NH3][Co0.7Zn1.3(PO4)2] (1) and the red burgundy crystals of Co6.2(OH)4(PO4)4Zn1.80 (2), a new adamite type phase. The structure of [NH3CH2CH2NH3] [Co0.7Zn1.3(PO4)2] (1) exhibits a 3D open framework built from PO4 and (Co/Zn)O4 tetrahedra, and (Co/Zn)O5 trigonal bipyramids, forming two major channels, an 8-membered ring channel and a 16-membered ring channel, that host the ethanediammonium ions. The Co6.2(OH)4(PO4)4Zn1.80 (2) is isomorphous with adamite-type M2(OH)XO4 structure, with a condensed vertex and edge sharing network of (Co/Zn)O5, and distorted CoO6, and PO4 subunits. The cobalt preference for higher coordination numbers is displayed in this structure, where the octahedral sites are wholly occupied by cobalt. Thermal analysis confirmed that these compounds display high thermal stability.

Aderemi Oki; Matthias Zeller; Yaneth Coranza; Jose Luevano; Allen D. Hunter

2007-01-01T23:59:59.000Z

362

Li-Ion Battery with LiFePO4 Cathode and Li4Ti5O12 Anode for Stationary Energy Storage  

SciTech Connect (OSTI)

i-ion batteries based on commercially available LiFePO4 cathode and Li4Ti5O12 anode were investigated for potential stationary energy storage applications. The full cell that operated at flat 1.85V demonstrated stable cycling for 200 cycles followed by a rapid fade. A significant improvement in cycling stability was achieved via Ketjen black coating of the cathode. A Li-ion full cell with Ketjen black modified LiFePO4 cathode and an unmodified Li4Ti5O12 anode exhibited negligible fade after more than 1200 cycles with a capacity of ~130mAh/g. The improved stability, along with its cost-effectiveness, environmentally benignity and safety, make the LiFePO4/ Li4Ti5O12 Li-ion battery a promising option of storing renewable energy.

Wang, Wei; Choi, Daiwon; Yang, Zhenguo

2013-01-01T23:59:59.000Z

363

The TE Wave Transmission Method for Electron Cloud Measurements at Cesr-TA  

E-Print Network [OSTI]

CLOUD MEASUREMENTS AT CESR-TA* S. De Santis # , J. Byrd,Wave measurements at the Cesr-TA ring at Cornell University.CBP-836 THE TE WAVE TRANSMISSION METHOD FOR

Desantis, S.

2010-01-01T23:59:59.000Z

364

Energy spectrum of cosmic ray muons above 10 TeV according to BUST data  

Science Journals Connector (OSTI)

The energy spectrum of cosmic ray muons in the range of several TeV to ... obtained through the analysis of multiple interactions of muons (the pair meter technique) in the ... are compared with prior BUST data o...

A. G. Bogdanov; R. P. Kokoulin

2011-03-01T23:59:59.000Z

365

TeV scale left-right symmetry with spontaneous D-parity breaking  

SciTech Connect (OSTI)

The different scenarios of spontaneous breaking of D parity have been studied in both the nonsupersymmetric and the supersymmetric version of the left-right symmetric models (LRSM). We explore the possibility of a TeV scale SU(2){sub R} breaking scale M{sub R} and hence TeV scale right-handed neutrinos from both minimization of the scalar potential as well as the coupling constant unification point of view. We show that, although minimization of the scalar potential allows the possibility of a TeV scale M{sub R} and tiny neutrino masses in LRSM with spontaneous D-parity breaking, the gauge coupling unification at a high scale {approx}10{sup 16} GeV does not favor a TeV scale symmetry breaking except in the supersymmetric left-right model with Higgs doublet and bidoublet. The phenomenology of neutrino mass is also discussed.

Borah, Debasish [Indian Institute of Technology Bombay, Mumbai-400076 (India); Patra, Sudhanwa; Sarkar, Utpal [Physical Research Laboratory, Ahmedabad-380009 (India)

2011-02-01T23:59:59.000Z

366

Molybdenum Nitride Films in the Back Contact Structure of Flexible Substrate CdTe Solar Cells.  

E-Print Network [OSTI]

??CdTe solar cells in the superstrate configuration have achieved record efficiencies of 16% but those in the substrate configuration have reached efficiencies of only 7.8%. (more)

Guntur, Vasudha

2011-01-01T23:59:59.000Z

367

Optical properties of single ZnTe nanowires grown at low temperature  

SciTech Connect (OSTI)

Optically active gold-catalyzed ZnTe nanowires have been grown by molecular beam epitaxy, on a ZnTe(111) buffer layer, at low temperature (350 C) under Te rich conditions, and at ultra-low density (from 1 to 5 nanowires per ?m{sup 2}). The crystalline structure is zinc blende as identified by transmission electron microscopy. All nanowires are tapered and the majority of them are <111> oriented. Low temperature micro-photoluminescence and cathodoluminescence experiments have been performed on single nanowires. We observe a narrow emission line with a blue-shift of 2 or 3 meV with respect to the exciton energy in bulk ZnTe. This shift is attributed to the strain induced by a 5 nm-thick oxide layer covering the nanowires, and this assumption is supported by a quantitative estimation of the strain in the nanowires.

Artioli, A.; Stepanov, P.; Den Hertog, M.; Bougerol, C.; Genuist, Y.; Donatini, F.; Andr, R.; Nogues, G.; Tatarenko, S.; Ferrand, D.; Cibert, J. [Inst NEEL, Universiy of Grenoble Alpes, F-38042 Grenoble (France) [Inst NEEL, Universiy of Grenoble Alpes, F-38042 Grenoble (France); Inst NEEL, CNRS, F-38042 Grenoble (France); Rueda-Fonseca, P. [Inst NEEL, Universiy of Grenoble Alpes, F-38042 Grenoble (France) [Inst NEEL, Universiy of Grenoble Alpes, F-38042 Grenoble (France); Inst NEEL, CNRS, F-38042 Grenoble (France); INAC, CEA and Universit de Grenoble, 17 rue des Martyrs, 38054 Grenoble (France); Bellet-Amalric, E.; Kheng, K. [INAC, CEA and Universit de Grenoble, 17 rue des Martyrs, 38054 Grenoble (France)] [INAC, CEA and Universit de Grenoble, 17 rue des Martyrs, 38054 Grenoble (France)

2013-11-25T23:59:59.000Z

368

UNIVERSITY OF CALIFORNIA, TeV Energy Spectra of the Crab Nebula, Mrk 421 and  

E-Print Network [OSTI]

UNIVERSITY OF CALIFORNIA, IRVINE TeV Energy Spectra of the Crab Nebula, Mrk 421 and the Cygnus . . . . . . . . . . . . . . . . . . . . 2 i Cosmic Rays . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 ii The Search for the Origin with Milagro . . . . . . . . . . . . . . . . . . . . . 69 IVThe Milagro Energy Reconstruction Algorithm 73 I

California at Santa Cruz, University of

369

V-183: Cisco TelePresence TC and TE Bugs Let Remote Users Deny...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Cisco TelePresence Profiles Series running Cisco TelePresence Quick Set Series Cisco IP Video Phone E20 ABSTRACT: Cisco TelePresence TC and TE Software contain two vulnerabilities...

370

Collimation and Radiative Deceleration of Jets in TeV AGNs  

E-Print Network [OSTI]

We consider some implications of the rapid X-ray and TeV variability observed in M87 and the TeV blazars. We outline a model for jet focusing and demonstrate that modest radiative cooling can lead to recollimation of a relativistic jet in a nozzle having a very small cross-sectional radius. Such a configuration can produce rapid variability at large distances from the central engine and may explain recent observations of the HST-1 knot in M87. Possible applications of this model to TeV blazars are discussed. We also discuss a scenario for the very rapid TeV flares observed with HESS and MAGIC in some blazars, that accommodates the relatively small Doppler factors inferred from radio observations.

Amir Levinson; Omer Bromberg

2007-12-17T23:59:59.000Z

371

p-CdTe/n-CdS photovoltaic cells in the substrate configuration.  

E-Print Network [OSTI]

??In this thesis, p-CdTe/n-CdS solar cells in the substrate configuration have been studied. The focus is on device fabrication, performance optimization, and the development of (more)

Wu, Hsiang Ning (1984 - )

2014-01-01T23:59:59.000Z

372

Development of high efficieny CdTe thin-film solar cell.  

E-Print Network [OSTI]

??CdTe films were deposited by sputtering technique and were then carried out by CdCl2 treatment. The SEM micrographs show that the grain sizes of the (more)

Huang, Yein-rein

2011-01-01T23:59:59.000Z

373

Stability Issues in Sputtered CdS/CdTe Solar Cells.  

E-Print Network [OSTI]

?? Magnetron sputtering is a well-established thin-film deposition technique which is particularly well-suited for sub-micron layers. We use this method to deposit ultra-thin CdS/CdTe layers (more)

Paudel, Naba Raj

2011-01-01T23:59:59.000Z

374

Studies of sputtered CdTe and CdSe solar cells.  

E-Print Network [OSTI]

??CdTe has recently become the most commercially successful polycrystalline thin filmsolar module material. Its low cost, large-area solar module is reshaping the silicondominatedsolar panel market; (more)

Kwon, Dohyoung

2012-01-01T23:59:59.000Z

375

Development of CdTe thin film solar cells on flexible foil substrates.  

E-Print Network [OSTI]

??Cadmium telluride (CdTe) is a leading thin film photovoltaic (PV) material due to its near ideal band gap of 1.45 eV, its high optical absorption (more)

Hodges, Deidra Ranel

2009-01-01T23:59:59.000Z

376

CdTe/CdS Thin Film Solar Cells Fabricated on Flexible Substrates.  

E-Print Network [OSTI]

??Cadmium Telluride (CdTe) is a leading thin film photovoltaic (PV) material due to its near ideal bandgap of 1.45 eV and its high optical absorption (more)

Palekis, Vasilios

2011-01-01T23:59:59.000Z

377

Photoluminescence and Extended X-ray Absorption Fine Structure Studies on CdTe Material.  

E-Print Network [OSTI]

??The direct-band-gap semiconductor CdTe is an important material for fabricating high efficiency, polycrystalline thin-film solar cells in a heterojunction configuration. The outstanding physical properties of (more)

Liu, Xiangxin

2006-01-01T23:59:59.000Z

378

Electron-reflector strategy for CdTe thin-film solar cells.  

E-Print Network [OSTI]

??The CdTe thin-film solar cell has a large absorption coefficient and high theoretical efficiency. Moreover, large-area photovoltaic panels can be economically fabricated. These features potentially (more)

Hsiao, Kuo-Jui

2010-01-01T23:59:59.000Z

379

Approaches to fabricating high-efficiency ultra-thin CdTe solar cells.  

E-Print Network [OSTI]

??This thesis is an investigation of the fabrication, characterization and performance of high-efficiency and ultra-thin CdTe solar cells with an aim of reducing the material (more)

Xia, Wei (1981 - )

2013-01-01T23:59:59.000Z

380

Room temperature ferromagnetism in Co defused CdTe nanocrystalline thin films  

SciTech Connect (OSTI)

Nanocrystalline Co defused CdTe thin films were prepared using electron beam evaporation technique by depositing CdTe/Co/CdTe stacked layers with different Co thickness onto glass substrate at 373 K followed by annealing at 573K for 2 hrs. Structural, morphological and magnetic properties of of all the Co defused CdTe thin films has been investigated. XRD pattern of all the films exhibited zinc blende structure with <111> preferential orientation without changing the crystal structure of the films. The grain size of the films increased from 31.5 nm to 48.1 nm with the increase of Co layer thickness from 25nm to 100nm. The morphological studies showed that uniform texture of the films and the presence of Co was confirmed by EDAX. Room temperature magnetization curves indicated an improved ferromagnetic behavior in the films with increase of the Co thickness.

Rao, N. Madhusudhana; Kaleemulla, S.; Begam, M. Rigana [Materials Physics Division, School of Advanced Sciences, VIT University, Vellore - 632 014 (India)

2014-04-24T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

Shunt Passivation Process for CdTe Solar Cell - New Post Deposition Technique.  

E-Print Network [OSTI]

?? A cadmium sulfide / cadmium telluride (CdS/CdTe) solar cell consists of thedevice stack: Glass substrate / SnO2:F (TCO, transparent conductive oxide) / CdS (n-type (more)

Tessema, Misle Mesfin

2009-01-01T23:59:59.000Z

382

Effect of Cu doping on Hole Mobility in CdTe  

SciTech Connect (OSTI)

High quality CdTe thin films grown by laser deposition technique and heavily doped with Cu have recently been reported to have resistivity and hole mobility comparable to those of bulk single crystals. To explain the experimental results we have calculated the effect of Cu on the band structure and phonon spectrum of CdTe using the density functional theory (DFT) and the linearized augmented plane wave (LAPW) method. We found that the introduction of a high density of Cu can lead to a reduction in the hole-LO phonon scattering. In addition, Cu doping can remove Cd vacancies in CdTe and thereby enhance the hole mobility in CdTe.

Ma Zhixun; Mao, Samuel S. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Liu Lei; Yu, Peter Y. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Department of Physics, University of California at Berkeley, Berkeley, CA 94720 (United States)

2010-01-04T23:59:59.000Z

383

Efficiency, Cost and Weight Trade-off in TE Power Generation System for Vehicle Exhaust Applications  

Broader source: Energy.gov [DOE]

It contains a detailed co-optimization of the thermoelectric module with the heat sink and a study of the tradeoff between the material cost and efficiency for the TE module and the heat sink. An optimum design is found.

384

The tin impurity in Bi0.5Sb1.5Te3 alloys  

Broader source: Energy.gov [DOE]

Extends work on tin to p-type thermoelectric alloys of formula Bi(2-x)Sb(x)Te(3) doped with Sn. Both single crystals and polycrystals prepared using powder metallurgical techniques are studied and properties reported.

385

TeC: end-user development of software systems for smart spaces  

Science Journals Connector (OSTI)

This paper presents TeC, a framework for end-user design, deployment, and evolution of applications for smart spaces. This work is motivated by the current gap between traditional software development approaches and end user desire to easily personalise and evolve their systems for smart spaces. TeC is precise enough to support the fully automated deployment of systems designed by end users, and it addresses important characteristics of ubiquitous computing, namely, the ability to describe dynamic adaptations and to relate system features to physical location and to the presence and identity of users. TeC is described by example, with four home automation systems concerning surveillance and energy management. The paper also discusses the implementation of the TeC middleware and preliminary evaluation concerning usability and engineering effort.

João P. Sousa; Daniel Keathley; Mong Le; Luan Pham; Daniel Ryan; Sneha Rohira; Samuel Tryon; Sheri Williamson

2011-01-01T23:59:59.000Z

386

Combined SIMS, AES and XPS Study of CdxHg1-xTe  

Science Journals Connector (OSTI)

The ternary compound CdxHg1_xTe is of great importance in infrared technology. The band gap of this material depends critically on the concentration x. Therefore, a detailed knowledge of the surface and bulk comp...

O. Ganschow; H. M. Nitz; L. Wiedmann

1979-01-01T23:59:59.000Z

387

Aqueous Synthesis of Zinc Blende CdTe/CdS Magic-Core/Thick-Shell...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CdTeCdS Magic-CoreThick-Shell Tetrahedral Shaped Nanocrystals with Emission Tunable to Near-Infrared Authors: Deng, Z., Schulz, O., Lin, S., Ding, B., Liu, X., Wei, X., Ros, R.,...

388

First results on neutrinoless double beta decay of Te-130 with the calorimetric cuoricino experiment  

E-Print Network [OSTI]

Evidence for Neutrinoless Double Beta Decay arXiv:hep-on Evidence for neutrinoless double beta decay- arXiv:hep-Results on Neutrinoless Double Beta Decay of 130 Te with the

2003-01-01T23:59:59.000Z

389

Surveying The TeV Sky With Milagro G. P. Walker for the Milagro Collaboration  

E-Print Network [OSTI]

Surveying The TeV Sky With Milagro G. P. Walker for the Milagro Collaboration Los Alamos National been reported by the Milagro collaboration [5]. In this analysis, the emission is resolved into regions

California at Santa Cruz, University of

390

Significant increase of the ferroelectric phase transition temperature in partially deuterated KH{sub 2}PO{sub 4} by proton irradiation  

SciTech Connect (OSTI)

The ferroelectric phase transition temperature was significantly raised by 5 K in partially deuterated KH{sub 2}PO{sub 4} irradiated by a proton beam. Increase in the hydrogen bond length was indicated by the dielectric constant analysis. Deuteron nuclear magnetic resonance (NMR) measurements of the electric field gradient tensor showed atomic displacement after the proton irradiation, and {sup 31}P NMR measurements of the chemical shift tensor revealed phosphorous displacement in the hydrogen-bonded direction and the PO{sub 4} tetrahedral distortion. Increase of the phase transition temperature can be closely related to the structural modification involving the hydrogen-bond geometry.

Kim, Se Hun; Lee, Kyu Won; Oh, B. H.; Kweon, J. J.; Lee, Cheol Eui [Department of Physics, Korea University, Seoul 136-713, Korea and Institute for Nano Science, Korea University, Seoul 136-713, Korea and Faculty of Science Education and Educational Research Institute, Cheju National University, Cheju 690-756 (Korea, Republic of); Department of Physics, Korea University, Seoul 136-713, Korea and Institute for Nano Science, Korea University, Seoul 136-713 (Korea, Republic of)

2007-09-17T23:59:59.000Z

391

Thermal Stability and Phase Transformation of Electrochemically Charged/Discharged LiMnPO4 Cathode for Li-Ion Battery  

SciTech Connect (OSTI)

Electrochemically active LiMnPO4 nanoplate at lithiated/delithiated state were subjected to thermal stability and phase transformation evaluate for safety as a cathode material for Li-ion battery. The phase transformation and oxygen evolution temperature on the delithiated MnPO4 were characterized using in-situ hot-stage X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), thermogravimetric - differential scanning calorimetry - mass spectroscopy (TGA-DSC-MS), transmission electron microscopy and scanning electron microscopy (SEM) - energy dispersive X-ray analysis (EDAX).

Choi, Daiwon; Xiao, Jie; Choi, Young Joon; Hardy, John S.; Vijayakumar, M.; Bhuvaneswari, M. S.; Liu, Jun; Xu, Wu; Wang, Wei; Yang, Zhenguo; Graff, Gordon L.; Zhang, Jiguang

2011-11-01T23:59:59.000Z

392

Simultaneous TE{sub 1} and TE{sub 2} mode lasing yielding dual-wavelength oscillation in a semiconductor laser with a tunnel junction  

SciTech Connect (OSTI)

Dual-frequency oscillation is obtained and investigated in a new type of injection heterolaser, an interband two-stage cascade laser with a tunneling p-n junction separating two active regions with quantum wells located in a common waveguide. The laser design provides for simultaneous oscillation at the first-order TE mode of wavelength {lambda} = 1.086 {mu}m and the second-order TE mode of wavelength {lambda} = 0.96 {mu}m in the continuous-wave regime at room temperature.

Aleshkin, V. Ya., E-mail: aleshkin@ipm.sci.nnov.ru [Russian Academy of Sciences, Institute for Physics of Microstructures (Russian Federation); Babushkina, T. S.; Birykov, A. A. [Nizhni Novgorod State University, Physicotechnical Institute (Russian Federation); Dubinov, A. A. [Russian Academy of Sciences, Institute for Physics of Microstructures (Russian Federation); Zvonkov, B. N.; Kolesnikov, M. N.; Nekorkin, S. M. [Nizhni Novgorod State University, Physicotechnical Institute (Russian Federation)

2011-05-15T23:59:59.000Z

393

CATHODOLUMINESCENCE STUDIES OF THE 1.4 eV BANDS IN CdTe (*) C. B. NORRIS and C. E. BARNES  

E-Print Network [OSTI]

219 CATHODOLUMINESCENCE STUDIES OF THE 1.4 eV BANDS IN CdTe (*) C. B. NORRIS and C. E. BARNESV luminescence bands in nominally undoped, nominally stoichiometric CdTe and in donor-compensated, Te-rich CdTe.4 eV transitions in CdTe arose from the fact that this transition is of a more complex nature than

Paris-Sud XI, Université de

394

Optical Stark Effect and Dressed Exciton States in a Mn-Doped CdTe Quantum Dot C. Le Gall,1  

E-Print Network [OSTI]

Optical Stark Effect and Dressed Exciton States in a Mn-Doped CdTe Quantum Dot C. Le Gall,1 A spin in a CdTe QD, like the strain- induced magnetic anisotropy or hyperfine coupling to the nuclei in this study is grown on a ZnTe substrate and contains CdTe QDs. A 6.5 monolayer thick CdTe layer is deposited

Boyer, Edmond

395

Lithium transition metal fluorophosphates (Li{sub 2}CoPO{sub 4}F and Li{sub 2}NiPO{sub 4}F) as cathode materials for lithium ion battery from atomistic simulation  

SciTech Connect (OSTI)

Lithium transition metal fluorophosphates (Li{sub 2}MPO{sub 4}F, M: Co and Ni) have been investigated from atomistic simulation. In order to predict the characteristics of these materials as cathode materials for lithium ion batteries, structural property, defect chemistry, and Li{sup +} ion transportation property are characterized. The coreshell model with empirical force fields is employed to reproduce the unit-cell parameters of crystal structure, which are in good agreement with the experimental data. In addition, the formation energies of intrinsic defects (Frenkel and antisite) are determined by energetics calculation. From migration energy calculations, it is found that these flurophosphates have a 3D Li{sup +} ion diffusion network forecasting good Li{sup +} ion conducting performances. Accordingly, we expect that this study provides an atomic scale insight as cathode materials for lithium ion batteries. - Graphical abstract: Lithium transition metal fluorophosphates (Li{sub 2}CoPO{sub 4}F and Li{sub 2}NiPO{sub 4}F). Display Omitted - Highlights: Lithium transition metal fluorophosphates (Li{sub 2}MPO{sub 4}F, M: Co and Ni) are investigated from classical atomistic simulation. The unit-cell parameters from experimental studies are reproduced by the coreshell model. Li{sup +} ion conducting Li{sub 2}MPO{sub 4}F has a 3D Li{sup +} ion diffusion network. It is predicted that Li/Co or Li/Ni antisite defects are well-formed at a substantial concentration level.

Lee, Sanghun, E-mail: sh0129.lee@samsung.com; Park, Sung Soo, E-mail: sung.s.park@samsung.com

2013-08-15T23:59:59.000Z

396

DISCOVERY OF A NEW TeV GAMMA-RAY SOURCE: VER J0521+211  

SciTech Connect (OSTI)

We report the detection of a new TeV gamma-ray source, VER J0521+211, based on observations made with the VERITAS imaging atmospheric Cherenkov Telescope Array. These observations were motivated by the discovery of a cluster of >30 GeV photons in the first year of Fermi Large Area Telescope observations. VER J0521+211 is relatively bright at TeV energies, with a mean photon flux of (1.93 0.13{sub stat} 0.78{sub sys}) 10{sup 11} cm{sup 2} s{sup 1} above 0.2 TeV during the period of the VERITAS observations. The source is strongly variable on a daily timescale across all wavebands, from optical to TeV, with a peak flux corresponding to ?0.3 times the steady Crab Nebula flux at TeV energies. Follow-up observations in the optical and X-ray bands classify the newly discovered TeV source as a BL Lac-type blazar with uncertain redshift, although recent measurements suggest z = 0.108. VER J0521+211 exhibits all the defining properties of blazars in radio, optical, X-ray, and gamma-ray wavelengths.

Archambault, S. [Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada); Arlen, T.; Aune, T. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States); Behera, B.; Federici, S. [DESY, Platanenallee 6, D-15738 Zeuthen (Germany); Beilicke, M.; Buckley, J. H.; Bugaev, V. [Department of Physics, Washington University, St. Louis, MO 63130 (United States); Benbow, W. [Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645 (United States); Bird, R. [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Bouvier, A. [Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 (United States); Byrum, K. [Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439 (United States); Cesarini, A.; Connolly, M. P. [School of Physics, National University of Ireland Galway, University Road, Galway (Ireland); Ciupik, L. [Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605 (United States); Cui, W.; Feng, Q.; Finley, J. P. [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States); Errando, M. [Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027 (United States); Falcone, A., E-mail: fortin@veritas.sao.arizona.edu, E-mail: errando@astro.columbia.edu, E-mail: jholder@physics.udel.edu, E-mail: sfegan@llr.in2p3.fr [Department of Astronomy and Astrophysics, 525 Davey Lab, Pennsylvania State University, University Park, PA 16802 (United States); Collaboration: VERITAS Collaboration; and others

2013-10-20T23:59:59.000Z

397

X-ray Studies of Unidentified Galactic TeV Gamma-ray Sources  

SciTech Connect (OSTI)

Many of the recently discovered Galactic TeV sources remain unidentified to date. A large fraction of the sources is possibly associated with relic pulsar wind nebula (PWN) systems. One key question here is the maximum energy (beyond TeV) attained in the compact PWNe. Hard X-ray emission can trace those particles, but current non-focussing X-ray instruments above 10 keV have difficulties to deconvolve the hard pulsar spectrum from its surrounding nebula.Some of the new TeV sources are also expected to originate from middle-aged and possibly even from old supernova remnants (SNR). But no compelling case for such an identification has been found yet. In established young TeV-emitting SNRs, X-ray imaging above 10 keV could help to disentangle the leptonic from the hadronic emission component in the TeV shells, if secondary electrons produced in hadronic collisions can be effectively detected. As SNRs get older, the high energy electron component is expected to fade away. This may allow to verify the picture through X-ray spectral evolution of the source population.Starting from the lessons we have learned so far from X-ray follow-up observations of unidentified TeV sources, prospects for Simbol-X to resolve open questions in this field will be discussed.

Puehlhofer, Gerd [Institut fuer Astronomie und Astrophysik, Sand 1, 72076 Tuebingen (Germany)

2009-05-11T23:59:59.000Z

398

Abundance determinations in HII regions: model fitting versus Te-method  

E-Print Network [OSTI]

The discrepancy between the oxygen abundances in high-metallicity HII regions determined through the Te-method (and/or through the corresponding "strong lines - oxygen abundance" calibration) and that determined through the model fitting (and/or through the corresponding "strong lines - oxygen abundance" calibration) is discussed. It is suggested to use the interstellar oxygen abundance in the solar vicinity, derived with very high precision from the high-resolution observations of the weak interstellar absorption lines towards the stars, as a "Rosetta stone" to verify the validity of the oxygen abundances derived in HII regions with the Te-method at high abundances. The agreement between the value of the oxygen abundance at the solar galactocentric distance traced by the abundances derived in HII regions through the Te-method and that derived from the interstellar absorption lines towards the stars is strong evidence in favor of that i) the two-zone model for Te seems to be a realistic interpretation of the temperature structure within HII regions, and ii) the classic Te-method provides accurate oxygen abundances in HII regions. It has been concluded that the "strong lines - oxygen abundance" calibrations must be based on the HII regions with the oxygen abundances derived with the Te-method but not on the existing grids of the models for HII regions.

L. S. Pilyugin

2002-11-14T23:59:59.000Z

399

Enhanced thermoelectric performance in Cd doped CuInTe{sub 2} compounds  

SciTech Connect (OSTI)

CuIn{sub 1?x}Cd{sub x}Te{sub 2} materials (x?=?0, 0.02, 0.05, and 0.1) are prepared using melting-annealing method and the highly densified bulk samples are obtained through Spark Plasma Sintering. The X-ray diffraction data confirm that nearly pure chalcopyrite structures are obtained in all the samples. Due to the substitution of Cd at In sites, the carrier concentration is greatly increased, leading to much enhanced electrical conductivity and power factor. The single parabolic band model is used to describe the electrical transport properties of CuInTe{sub 2} and the low temperature Hall mobility is also modeled. By combing theoretical model and experiment data, the optimum carrier concentration in CuInTe{sub 2} is proposed to explain the greatly enhanced power factors in the Cd doped CuInTe{sub 2}. In addition, the thermal conductivity is reduced by extra phonon scattering due to the atomic mass and radius fluctuations between Cd and In atoms. The maximum zTs are observed in CuIn{sub 0.98}Cd{sub 0.02}Te{sub 2} and CuIn{sub 0.9}Cd{sub 0.1}Te{sub 2} samples, which are improved by over 100% at room temperature and around 20% at 600?K.

Cheng, N. [State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049 (China); Liu, R. [State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); Bai, S. [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); Shi, X., E-mail: xshi@mail.sic.ac.cn; Chen, L. [State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China)

2014-04-28T23:59:59.000Z

400

Strong lensing probability in TeVeS theory  

E-Print Network [OSTI]

We recalculate the strong lensing probability as a function of the image separation in TeVeS (tensor-vector-scalar) cosmology, which is a relativistic version of MOND (MOdified Newtonian Dynamics). The lens is modeled by the Hernquist profile. We assume an open cosmology with $\\Omega_b=0.04$ and $\\Omega_\\Lambda=0.5$ and three different kinds of interpolating functions. Two different galaxy stellar mass functions (GSMF) are adopted: PHJ (Panter-Heavens-Jimenez, 2004) determined from SDSS data release one and Fontana (Fontana et al., 2006) from GOODS-MUSIC catalog. We compare our results with both the predicted probabilities for lenses by Singular Isothermal Sphere (SIS) galaxy halos in LCDM (lambda cold dark matter) with Schechter-fit velocity function, and the observational results of the well defined combined sample of Cosmic Lens All-Sky Survey (CLASS) and Jodrell Bank/Very Large Array Astrometric Survey (JVAS). It turns out that the interpolating function $\\mu(x)=x/(1+x)$ combined with Fontana GSMF matches the results from CLASS/JVAS quite well.

Da-Ming Chen

2007-12-11T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" from the National Library of EnergyBeta (NLEBeta).
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401

DEVELOPMENT OF CdZnTe RADIATION DETECTORS  

SciTech Connect (OSTI)

Cadmium Zinc Telluride (CdZnTe or CZT) is a very attractive material for room-temperature semiconductor detectors because of its wide band-gap and high atomic number. Despite these advantages, CZT still presents some material limitations and poor hole mobility. In the past decade most of the developing CZT detectors focused on designing different electrode configurations, mainly to minimize the deleterious effect due to the poor hole mobility. A few different electrode geometries were designed and fabricated, such as pixelated anodes and Frisch-grid detectors developed at Brookhaven National Lab (BNL). However, crystal defects in CZT materials still limit the yield of detector-grade crystals, and, in general, dominate the detector's performance. In the past few years, our group's research extended to characterizing the CZT materials at the micro-scale, and to correlating crystal defects with the detector's performance. We built a set of unique tools for this purpose, including infrared (IR) transmission microscopy, X-ray micro-scale mapping using synchrotron light source, X-ray transmission- and reflection-topography, current deep level transient spectroscopy (I-DLTS), and photoluminescence measurements. Our most recent work on CZT detectors was directed towards detailing various crystal defects, studying the internal electrical field, and delineating the effects of thermal annealing on improving the material properties. In this paper, we report our most recent results.

BOLOTNIKOV, A.; CAMARDA, G.; HOSSAIN, A.; KIM, K.H.; YANG, G.; GUL, R.; CUI, Y.; AND JAMES, R.B.

2011-10-23T23:59:59.000Z

402

PROOF-based analysis on the ATLAS Grid facilities: first experience with the PoD/PanDa plugin  

E-Print Network [OSTI]

In the ATLAS computing model Grid resources are managed by the PanDA system, a data-driven workload management system designed for production and distributed analysis. Data are stored under various formats in ROOT files and end-user physicists have the choice to use either the ATHENA framework or directly ROOT. The ROOT way to analyze data provides users the possibility to use PROOF to exploit the computing power of multi-core machines or to dynamically manage analysis facilities. Since analysis facilities are, in general, not dedicated to PROOF only, PROOF-on-Demand (PoD) is used to enable PROOF on top of an existing resource management system.\

Vilucchi, E; The ATLAS collaboration; Di Donato, C; Di Nardo, R; Doria, A; Ganis, G; Manafov, A; Mancini, G; Mazza, S; Preltz, F; Rebatto, D; Salvucci, A; Pineda, A S

2013-01-01T23:59:59.000Z

403

The Varying Role of po- in the Grammaticalization of Slavic Aspectual Systems: Sequences of Events, Delimitatives, and German Language Contact  

E-Print Network [OSTI]

;#23;I#28;#31;"#24;$#25;#24;#22;(#24;I"#20;%&9DI D THE VARYING ROLE OF PO- IN THE GRAMMATICALIZATION OF SLAVIC ASPECTUAL SYSTEMS 179 D >2?D #20;9D #12;9D#7;9D#29;#24;D%D#$#24;#23;!#29;#28; D#23;#24;#31;" D&"("$!#24;#26;#20;D(",#28;#31;#20;D&$.#28...;#31;#11;D"#21;D#23;#24;#30;#31;#28;#22;"9D &$"#30;D#29;#24;D,#20;&"D##20;#23;#24;#31;#11;9D#15;",#28;#31;"D#29;#24;D#"!#24;%$#24;.#24;!#30;"D#12;#11;#15;#6;#14;#8;#2; #11;#6;D/#24;D !#24;#30;#20;#29;D #24;&$"(9D#8;#24;#23; D#29;#24;D(",#28;#31;"D%D#12...

Dickey, Stephen M.

2011-01-01T23:59:59.000Z

404

Enhanced magnetism and nuclear ordering of 169Tm spins in TmPO4 C. Fermon, J. F. Gregg(*), J.-F. Jacquinot, Y. Roinel, V. Bouffard, G. Fournier and A. Abragam  

E-Print Network [OSTI]

1053 « Enhanced » magnetism and nuclear ordering of 169Tm spins in TmPO4 C. Fermon, J. F. Gregg.P.A.). Abstract 2014 Ordering of the nuclear spins of169Tm in TmPO4, caused by their « enhanced » nuclear magnetism, has been produced by Dynamic Nuclear Polarization (D.N.P.) followed by Adiabatic Demagnetization

Boyer, Edmond

405

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657-278-4533  

E-Print Network [OSTI]

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657 / Stanislaus Parking and Transportation Services ­ Vehicle Immobilization Policy Administrator: Vice President Updated: October 23, 2013 Parking and Transportation Services ­ Vehicle Immobilization Policy

de Lijser, Peter

406

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657-278-4533  

E-Print Network [OSTI]

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657 / Stanislaus Parking and Transportation Services - Contesting a Parking Violation at Court Policy Administrator Effective Date: January 1, 2010 Updated: October 23, 2013 Parking and Transportation Services - Contesting

de Lijser, Peter

407

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657-278-4533  

E-Print Network [OSTI]

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657 / Stanislaus Parking and Transportation Services - Contesting a Parking Violation Policy Administrator: Vice: January 1, 2010 Updated: October 10, 2013 Parking and Transportation Services - Contesting a Parking

de Lijser, Peter

408

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657-278-4533  

E-Print Network [OSTI]

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657 / Stanislaus Parking and Transportation Services ­ Notice of Delinquent Violations Policy Administrator: Vice: January 1, 1993 Updated: October 23, 2013 Parking and Transportation Services ­ Notice of Delinquent

de Lijser, Peter

409

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657-278-4533  

E-Print Network [OSTI]

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657 / Stanislaus Parking and Transportation Services ­ Administrative Hearing: Fee Waiver Policy Administrator) Effective Date: January 1, 2010 Updated: October 10, 2013 Parking and Transportation Services

de Lijser, Peter

410

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657-278-4533  

E-Print Network [OSTI]

Parking & Transportation Services P.O. Box 34065, Fullerton, CA 92834-9465 / T 657-278-3082 / F 657 / Stanislaus Parking and Transportation Services ­ Notice of Parking Violation Policy Administrator: Vice: January 1, 1999 Updated: October 23, 2013 Parking and Transportation Services ­ Notice of Parking

de Lijser, Peter

411

Direct synthesis of nanocrystalline Li0.90FePO4: observation of phase segregation of anti-site defects on delithiation  

E-Print Network [OSTI]

or mixtures thereof) dominating as the cathode material of choice. Recently, olivine-type LiMPO4 cathode materials have also risen to prominence. Since the initial report over a decade ago,1,2 the iron- based increase the surface electronic conductivity and reduce the particle size of the active LiFePO4 particles.3

Ryan, Dominic

412

Effect of low pO2 and host plant on colonization of roots by Pseudomonas putida PH6 (L1019)  

E-Print Network [OSTI]

tended to accumulate 1.3-fold more carbon, and "total" bacterial numbers were 1.8 to 2.4-fold higher in the low pO2 treatments than under aerated conditions. However, numbers of L1019 were 1.2 to 5.4-fold higher under aerated conditions, suggesting...

Tavaria, Freni Kekhasharu

1995-01-01T23:59:59.000Z

413

Role of intermediate phase for stable cycling of Na7V4(P2O7)4PO4 in sodium ion battery  

Science Journals Connector (OSTI)

...LiMn2O4/reduced graphene oxide hybrid for high rate lithium ion batteries . J Mater Chem 21...rate lithium-ion batteries . Electrochem Commun...2011 ) Reduced graphene oxide supported...Liu ZP ( 2011 ) Graphene modified LiFePO4...power lithium ion batteries . J Mater Chem 21...

Soo Yeon Lim; Heejin Kim; Jaehoon Chung; Ji Hoon Lee; Byung Gon Kim; Jeon-Jin Choi; Kyung Yoon Chung; Woosuk Cho; Seung-Joo Kim; William A. Goddard III; Yousung Jung; Jang Wook Choi

2014-01-01T23:59:59.000Z

414

Characterization of a new magnesium hydrogen orthophosphate salt, Mg3.5H2(PO4)3, synthesized in supercritical water  

E-Print Network [OSTI]

Characterization of a new magnesium hydrogen orthophosphate salt, Mg3.5H2(PO4)3, synthesized 2007 Available online 31 March 2007 Abstract Beige crystals of a new magnesium hydrogen orthophosphate water; IR and Raman spectra; Magnesium; Orthophosphate; Nanomaterial 1. Introduction Inorganic

Ryan, Dominic

415

The U.S. Department of Energy's Brookhaven National Laboratory P.O. Box 5000, Upton NY 11973 631 344-2345 www.bnl.gov Nuclear Physics  

E-Print Network [OSTI]

the Office of Nuclear Physics within the U.S. Department of Energy's Office of Science, RHIC gives physicists of Nuclear Physics within the U.S. Department of Energy's Office of Science Total Upgrade Cost: $ 700 millionThe U.S. Department of Energy's Brookhaven National Laboratory · P.O. Box 5000, Upton NY 11973

416

Note on XMM-Newton observations of the first unidentified TeV gamma-ray source TeV J2032+4130 by Horns et al. astro-ph/0705.0009  

E-Print Network [OSTI]

I comment on the -- apparent -- diffuse X-ray emission reported by Horns et al. in their XMM observations of TeV J2032+4130

Yousaf Butt

2007-05-02T23:59:59.000Z

417

DISCOVERY OF TeV GAMMA-RAY EMISSION FROM CTA 1 BY VERITAS  

SciTech Connect (OSTI)

We report the discovery of TeV gamma-ray emission coincident with the shell-type radio supernova remnant (SNR) CTA 1 using the VERITAS gamma-ray observatory. The source, VER J0006+729, was detected as a 6.5 standard deviation excess over background and shows an extended morphology, approximated by a two-dimensional Gaussian of semimajor (semiminor) axis 0. Degree-Sign 30 (0. Degree-Sign 24) and a centroid 5' from the Fermi gamma-ray pulsar PSR J0007+7303 and its X-ray pulsar wind nebula (PWN). The photon spectrum is well described by a power-law dN/dE = N {sub 0}(E/3 TeV){sup -{Gamma}}, with a differential spectral index of {Gamma} = 2.2 {+-} 0.2{sub stat} {+-} 0.3{sub sys}, and normalization N {sub 0} = (9.1 {+-} 1.3{sub stat} {+-} 1.7{sub sys}) Multiplication-Sign 10{sup -14} cm{sup -2} s{sup -1} TeV{sup -1}. The integral flux, F {sub {gamma}} = 4.0 Multiplication-Sign 10{sup -12} erg cm{sup -2} s{sup -1} above 1 TeV, corresponds to 0.2% of the pulsar spin-down power at 1.4 kpc. The energetics, colocation with the SNR, and the relatively small extent of the TeV emission strongly argue for the PWN origin of the TeV photons. We consider the origin of the TeV emission in CTA 1.

Aliu, E.; Errando, M. [Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027 (United States)] [Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027 (United States); Archambault, S. [Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada)] [Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada); Arlen, T. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States)] [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States); Aune, T.; Bouvier, A. [Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 (United States)] [Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 (United States); Beilicke, M.; Buckley, J. H.; Bugaev, V.; Dickherber, R. [Department of Physics, Washington University, St. Louis, MO 63130 (United States)] [Department of Physics, Washington University, St. Louis, MO 63130 (United States); Benbow, W. [Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645 (United States)] [Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645 (United States); Cesarini, A.; Connolly, M. P. [School of Physics, National University of Ireland Galway, University Road, Galway (Ireland)] [School of Physics, National University of Ireland Galway, University Road, Galway (Ireland); Ciupik, L. [Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605 (United States)] [Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605 (United States); Collins-Hughes, E. [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland)] [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Cui, W. [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States)] [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States); Duke, C. [Department of Physics, Grinnell College, Grinnell, IA 50112-1690 (United States)] [Department of Physics, Grinnell College, Grinnell, IA 50112-1690 (United States); Dumm, J. [School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States)] [School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States); Dwarkadas, V. V. [Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637 (United States)] [Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637 (United States); Falcone, A., E-mail: muk@astro.columbia.edu, E-mail: smcarthur@ulysses.uchicago.edu [Department of Astronomy and Astrophysics, 525 Davey Lab, Pennsylvania State University, University Park, PA 16802 (United States); and others

2013-02-10T23:59:59.000Z

418

Key experimental information on intermediate-range atomic structures in amorphous Ge2Sb2Te5 phase change material  

E-Print Network [OSTI]

.1063/1.3657139 Nature of phase transitions in crystalline and amorphous GeTe-Sb2Te3 phase change materials J. Chem. Phys on intermediate-range atomic structures in amorphous Ge2Sb2Te5 phase change material Shinya Hosokawa,1,2,a) Wolf change material Shinya Hosokawa, Wolf-Christian Pilgrim, Astrid Höhle, Daniel Szubrin, Nathalie Boudet

Paris-Sud XI, Université de

419

DETERMINATION OF BACK CONTACT BARRIER HEIGHT IN Cu(In,Ga)(Se,S)2 AND CdTe SOLAR CELLS  

E-Print Network [OSTI]

DETERMINATION OF BACK CONTACT BARRIER HEIGHT IN Cu(In,Ga)(Se,S)2 AND CdTe SOLAR CELLS Galymzhan T to quantify the energy barrier for holes between a Cu(In,Ga)(Se,S)2 (CIGSeS) or CdTe absorber and the back effectively kill the performance of the cell. Many CIGSeS and CdTe cells, however, do have a back

Sites, James R.

420

X-RAY ESCAPE PEAK VARIATIONS IN DIODES MADE FROM DOUBLY TRAVELLING SOLVENT GROWN p-TYPE CdTe  

E-Print Network [OSTI]

293 X-RAY ESCAPE PEAK VARIATIONS IN DIODES MADE FROM DOUBLY TRAVELLING SOLVENT GROWN p-TYPE CdTe H On a étudié la variation de l'intensité du pic d'échappement d'un compteur CdTe en fonction de la tension de height on the applied diode voltage was measured at diodes made from doubly travelling solvent grown CdTe

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "te po lv" 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

COMPARATIVE STUDY OF CdTe AND GaAs PHOTOREFRACTIVE PERFORMANCES FROM 1m TO 1.55m  

E-Print Network [OSTI]

1 COMPARATIVE STUDY OF CdTe AND GaAs PHOTOREFRACTIVE PERFORMANCES FROM 1µm TO 1.55µm L.A. de CdTe at different wavelengths from 1.06µm to 1.55µm. The sensitivity and performances of different for the extension of the photorefractive effect towards the wavelength region of 1.3-1.5µm. CdTe appears

Paris-Sud XI, Université de

422

Growth of CdTe Films on Amorphous Substrates Using CaF2 Nanorods as a Buffer Layer  

E-Print Network [OSTI]

Growth of CdTe Films on Amorphous Substrates Using CaF2 Nanorods as a Buffer Layer NICHOLAS LICAUSI biaxially textured CdTe films were grown on biaxial CaF2 buffer layers. The CaF2 nanorods were grown by oblique angle vapor deposition and possessed a {111}h121i biaxial texture. The CdTe film was deposited

Wang, Gwo-Ching

423

REVIEW OF CdTe MEDICAL APPLICATIONS Radiation Monitoring Devices, Inc. 44 Hunt St., Watertown, Massachusetts 02172, U. S. A.  

E-Print Network [OSTI]

REVIEW OF CdTe MEDICAL APPLICATIONS G. ENTINE Radiation Monitoring Devices, Inc. 44 Hunt St place de dents synthé- tiques. Par ailleurs, les détecteurs CdTe ont été utilisés pour le diagnostic d développer des photo- conducteurs X à base de CdTe pour les tomo-densitomètres ; toutefois, des progrès

Paris-Sud XI, Université de

424

Epitaxial growth of CdTe oriented thin films, infrared characterization and possible applications to photo-voltaic cells  

E-Print Network [OSTI]

573 Epitaxial growth of CdTe oriented thin films, infrared characterization and possible décembre 1979, accepté le 12 décembre 1979) Résumé. 2014 Des films minces orientés de CdTe, d de CdTe cubique dont la face (111), polie mécaniquement et décapée chimiquement, est préalablement

Paris-Sud XI, Université de

425

CONTRIBUTION TO THE DETERMINATION OF DEEP TRAPPING LEVELS IN HIGH RESISTIVITY FILMS OF n-TYPE CdTe  

E-Print Network [OSTI]

-TYPE CdTe C. LHERMITTE, D. CARLES and C. VAUTIER Laboratoire de Physique des couches minces, Faculté des conduction à l'obscurité et de la photoconductivité des couches minces de CdTe de type n nous permet de and the photoconductivity of n-type CdTe films enables us to emphasize the existence of a distribution of traps located

Boyer, Edmond

426

The Roles of Cu Impurity States in CdTe Thin Film Solar Cells Ken K. Chin1  

E-Print Network [OSTI]

1 The Roles of Cu Impurity States in CdTe Thin Film Solar Cells Ken K. Chin1 , T.A. Gessert2 of Cu impurity inclusion in CdTe thin film solar cells, such as degradation caused by Cu diffusion , and Su-Huai Wei2 1 Department of Physics and Apollo CdTe Solar Energy Research Center, NJIT, Newark, NJ

427

A Search for a Light Charged Higgs Boson Decaying to cs at ?s = 7 TeV.  

E-Print Network [OSTI]

??A search for a light charged Higgs boson decaying into cs is presented using data recorded in pp collisions at ?s = 7 TeV. The (more)

Martyniuk, Alex Christopher

2011-01-01T23:59:59.000Z

428

De herontwikkeling van het DSM terrein; naar een strategisch advies voor de ontwikkeling van het DSM terrein te Delft :.  

E-Print Network [OSTI]

??Het doel van het onderzoek is het traceren van het (bewust of onbewust) gevolgde strategisch proces voor de herontwikkeling van het DSM terrein te Delft, (more)

Schellekens, F.P.

2013-01-01T23:59:59.000Z

429

Calcul de la variation de mobilit des lectrons dans PbTe type n entre 50 et 300 K  

E-Print Network [OSTI]

, Classification Physics Abstracts 72.20F 1. Introduction. Les chalcog6nures tel le tellurure de plomb (PbTe) sont

Paris-Sud XI, Université de

430

Exploring alternative symmetry breaking mechanisms at the LHC with 7, 8 and 10 TeV total energy  

E-Print Network [OSTI]

In view of the annnouncement that in 2012 the LHC will run at 8 TeV, we study the possibility of detecting signals of alternative mechanisms of ElectroWeak Symmetry Breaking, described phenomenologically by unitarized models, at energies lower than 14 TeV. A complete calculation with six fermions in the final state is performed using the PHANTOM event generator. Our results indicate that at 8 TeV some of the scenarios with TeV scale resonances are likely to be identified while models with no resonances or with very heavy ones will be inaccessible, unless the available luminosity will be much higher than expected.

Alessandro Ballestrero; Diogo Buarque Franzosi; Ezio Maina

2012-03-13T23:59:59.000Z

431

Abidjan, Côte d'Ivoire: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Abidjan, Côte d'Ivoire: Energy Resources Abidjan, Côte d'Ivoire: Energy Resources Jump to: navigation, search Name Abidjan, Côte d'Ivoire Equivalent URI DBpedia GeoNames ID 2293538 Coordinates 5.341111°, -4.028056° 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":5.341111,"lon":-4.028056,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

432

Suzanne G.E. te Velthuis - Argonne National Laboratories, Materials Sicence  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NXRS > Suzanne G.E. te Velthuis NXRS > Suzanne G.E. te Velthuis Suzanne G.E. te Velthuis Physicist Bldg. 223, B-205 Phone 630-252-1075 This e-mail address is being protected from spambots. You need JavaScript enabled to view it. Quick Links Selected Publications Selected Invited Talks Present Position Physicist, Materials Science Division, Argonne National Laboratory (2005-Present). Education Ph.D. Degree, Deft University of Technology, The Netherlands (1999). Masters Degree in Applied Physics, Eindhoven University of Technology, The Netherlands (1993). Professional Expirence Assistant Scientist, Materials Science Division, Argonne National Laboratory, (2001-2005). Post-doctoral Scientist, Intense Pulsed Neutron Source, Argonne National Laboratory (1999-2001). Researcher in training (leading to PhD degree), Delft University of Technology, The Netherlands (1994 -1998).

433

Energy spectrum of charge carriers in Ag{sub 2}Te  

SciTech Connect (OSTI)

On the basis of investigations of the temperature and concentration dependences of kinetic coefficients (the Hall coefficientR, the electrical conductivity {sigma}, and thermopower {alpha}{sub 0}) in n-type Ag{sub 2}Te, it is established that Ag atoms in Ag{sub 2}Te create the shallow donor levels located at a distance of (0.002-7 x 10{sup -5}T) eV from the bottom of the conduction band. It is shown that silver telluride has n-type conductivity starting with the deficiency of Ag {>=} 0.01 at % in the stoichiometric composition, and it is practically impossible to achieve the stoichiometric composition in Ag{sub 2}Te.

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

2008-11-15T23:59:59.000Z

434

Optical characteristics of pulsed laser deposited Ge-Sb-Te thin films studied by spectroscopic ellipsometry  

SciTech Connect (OSTI)

Pulsed laser deposition technique was used for the fabrication of (GeTe){sub 1-x}(Sb{sub 2}Te{sub 3}){sub x} (x = 0, 0.33, 0.50, 0.66, and 1) amorphous thin films. Scanning electron microscopy with energy-dispersive x-ray analysis, x-ray diffraction, optical reflectivity, and sheet resistance temperature dependences as well as variable angle spectroscopic ellipsometry measurements were used to characterize as-deposited (amorphous) and annealed (rocksaltlike) layers. In order to extract optical functions of the films, the Cody-Lorentz model was applied for the analysis of ellipsometric data. Fitted sets of Cody-Lorentz model parameters are discussed in relation with chemical composition and the structure of the layers. The GeTe component content was found to be responsible for the huge optical functions and thickness changes upon amorphous-to-fcc phase transition.

Nemec, P. [Department of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210 Pardubice (Czech Republic); Prikryl, J.; Frumar, M. [Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210 Pardubice (Czech Republic); Nazabal, V. [Equipe Verres et Ceramiques, UMR-CNRS 6226, Sciences Chimiques de Rennes (SCR), Universite de Rennes 1, 35042 Rennes Cedex (France)

2011-04-01T23:59:59.000Z

435

Diffuse neutrinos from extragalactic supernova remnants: Dominating the 100 TeV IceCube flux  

E-Print Network [OSTI]

IceCube has measured a diffuse astrophysical flux of TeV-PeV neutrinos. The most plausible sources are unique high energy cosmic ray accelerators like hypernova remnants (HNRs) and remnants from gamma ray bursts in star-burst galaxies, which can produce primary cosmic rays with the required energies and abundance. In this case, however, ordinary supernova remnants (SNRs), which are far more abundant than HNRs, produce a comparable or larger neutrino flux in the ranges up to 100-150 TeV energies, implying a spectral break in the IceCube signal around these energies. The SNRs contribution in the diffuse flux up to these hundred TeV energies provides a natural baseline and then constrains the expected PeV flux.

Chakraborty, Sovan

2015-01-01T23:59:59.000Z

436

Phase assembly and photo-induced current in CdTe-ZnO nanocomposite thin films  

SciTech Connect (OSTI)

Sequential radio-frequency sputtering was used to produce CdTe-ZnO nanocomposite thin films with varied semiconductor-phase extended structures. Control of the spatial distribution of CdTe nanoparticles within the ZnO embedding phase was used to influence the semiconductor phase connectivity, contributing to both changes in quantum confinement induced spectral absorption and carrier transport characteristics of the resulting nanocomposite. An increased number density of CdTe particles deposited along the applied field direction produced an enhancement in the photo-induced current observed. These results highlight the opportunity to employ long-range phase assembly as a means to control optoelectronic properties of significant interest for photovoltaic applications.

Beal, R. J.; Kana Kana, J. B. [Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona 85721 (United States); Potter, B. G. Jr. [Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona 85721 (United States); College of Optical Sciences, University of Arizona, Tucson, Arizona 85721 (United States)

2012-07-16T23:59:59.000Z

437

Layer-by-Layer Assembly of Sintered CdSexTe1x Nanocrystal Solar Cells  

Science Journals Connector (OSTI)

solar cell; nanocrystal; CdTe; CdSexTe1?x; layer-by-layer; solution-processed; sintered ... For instance, devices fabricated using cadmium telluride (CdTe) and copper indium gallium selenide (CIGS) based active layers have exhibited laboratory scale power conversion efficiencies up to 17.3%(1) and 20.3%,(2) respectively, at commercial production costs as low as US $0.75/Watt. ... (20) More recently, the graded device concept has been extended to solution-processed organic solar cells, through a series of complementary donor materials(21) and to PbS quantum dot devices, where bandgap grading was accomplished through variation of the QD diameter. ...

Brandon I. MacDonald; Alessandro Martucci; Sergey Rubanov; Scott E. Watkins; Paul Mulvaney; Jacek J. Jasieniak

2012-06-12T23:59:59.000Z

438

Testing the plutonium isotopic analysis code FRAM with various CdTe detectors.  

SciTech Connect (OSTI)

The isotopic analysis code Fixed-energy Response-function Analysis with Multiple efficiency (FRAM)1,2 has been proven to successfully analyze plutonium spectra taken with a portable CdTe detector with Peltier cooling, the first results of this kind for a noncryogenic detector.3 These are the first wide-range plutonium gamma-ray isotopics analysis results obtained with other than Ge spectrometers. The CdTe spectrometer measured small plutonium reference samples in reasonable count times, covering the range from low to high burnup. This paper describes further testing of FRAM with two CdTe detectors of different sizes and resolutions using different analog and digital, portable multichannel analyzers (MCAs).

Vo, Duc T.; Russo, P. A. (Phyllis A.)

2002-01-01T23:59:59.000Z

439

Hybrid model of GeV-TeV gamma ray emission from Galactic Center  

E-Print Network [OSTI]

The observations of high energy $\\gamma$-ray emission from the Galactic center (GC) by HESS, and recently by Fermi, suggest the cosmic ray acceleration in the GC and possibly around the supermassive black hole. In this work we propose a lepton-hadron hybrid model to explain simultaneously the GeV-TeV $\\gamma$-ray emission. Both electrons and hadronic cosmic rays were accelerated during the past activity of the GC. Then these particles would diffuse outwards and interact with the interstellar gas and background radiation field. The collisions between hadronic cosmic rays with gas is responsible to the TeV $\\gamma$-ray emission detected by HESS. With fast cooling in the strong radiation field, the electrons would cool down and radiate GeV photons through inverse Compton scattering off the soft background photons. This scenario provides a natural explanation of the observed GeV-TeV spectral shape of $\\gamma$-rays.

Yi-Qing Guo; Qiang Yuan; Cheng Liu; Ai-Feng Li

2014-09-14T23:59:59.000Z

440

Charge transport properties of p-CdTe/n-CdTe/n{sup +}-Si diode-type nuclear radiation detectors based on metalorganic vapor-phase epitaxy-grown epilayers  

SciTech Connect (OSTI)

Charge transport properties of p-CdTe/n-CdTe/n{sup +}-Si diode-type nuclear radiation detectors, fabricated by growing p-and n-type CdTe epilayers on (211) n{sup +}-Si substrates using metalorganic vapor-phase epitaxy (MOVPE), were studied by analyzing current-voltage characteristics measured at various temperatures. The diode fabricated shows good rectification properties, however, both forward and reverse biased currents deviate from their ideal behavior. The forward current exhibits typical feature of multi-step tunneling at lower biases; however, becomes space charge limited type when the bias is increased. On the other hand, the reverse current exhibits thermally activated tunneling-type current. It was found that trapping centers at the p-CdTe/n-CdTe junction, which were formed due to the growth induced defects, determine the currents of this diode, and hence limit the performance of the nuclear radiation detectors developed.

Niraula, M.; Yasuda, K.; Wajima, Y.; Yamashita, H.; Tsukamoto, Y.; Suzuki, Y.; Matsumoto, M.; Takai, N.; Tsukamoto, Y.; Agata, Y. [Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555 (Japan)] [Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555 (Japan)

2013-10-28T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

Ionic conductivity and dielectric relaxation in {gamma}-irradiated TlGaTe{sub 2} crystals  

SciTech Connect (OSTI)

The switching effect, field and temperature dependences of the permittivity and conductivity of TlGaTe{sub 2} crystals subjected to various {gamma}-irradiation doses are studied. Under rather low electric fields, the phenomenon of threshold switching with an S-shaped current-voltage characteristic containing a portion with negative differential resistance is observed in the crystals. In the region of critical voltages, current and voltage oscillations and imposed modulation are observed. Possible mechanisms of switching, ionic conductivity, disorder, and electrical instability in TlGaTe{sub 2} crystals are discussed.

Sardarli, R. M., E-mail: sardarli@yahoo.com; Samedov, O. A.; Abdullayev, A. P. [National Academy of Sciences of Azerbaijan, Institute of Radiation Problems (Azerbaijan); Huseynov, E. K. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan); Salmanov, F. T.; Alieva, N. A.; Agaeva, R. Sh. [National Academy of Sciences of Azerbaijan, Institute of Radiation Problems (Azerbaijan)

2013-05-15T23:59:59.000Z

442

Measurement of Dijet Azimuthal Decorrelations in pp Collisions at {radical}(s)=7 TeV  

SciTech Connect (OSTI)

Azimuthal decorrelations between the two central jets with the largest transverse momenta are sensitive to the dynamics of events with multiple jets. We present a measurement of the normalized differential cross section based on the full data set ({integral}Ldt=36 pb{sup -1}) acquired by the ATLAS detector during the 2010 {radical}(s)=7 TeV proton-proton run of the LHC. The measured distributions include jets with transverse momenta up to 1.3 TeV, probing perturbative QCD in a high-energy regime.

Aad, G.; Ahles, F.; Beckingham, M.; Bernhard, R.; Bitenc, U.; Bruneliere, R.; Caron, S.; Carpentieri, C.; Christov, A.; Dahlhoff, A.; Dietrich, J.; Eckert, S.; Fehling-Kaschek, M.; Flechl, M.; Glatzer, J. [Fakultaet fuer Mathematik und Physik, Albert-Ludwigs-Universitaet, Freiburg i.Br. (Germany); Abbott, B. [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman Oklahoma (United States); Abdallah, J.; Bosman, M.; Casado, M. P.; Cavalli-Sforza, M. [Institut de Fisica d'Altes Energies and Universitat Autonoma de Barcelona and ICREA, Barcelona (Spain)

2011-04-29T23:59:59.000Z

443

Improvement of the energy resolution of CdTe detectors by pulse height correction from waveform  

E-Print Network [OSTI]

Semiconductor detectors made of CdTe crystal have high gamma-ray detection efficiency and are usable at room temperature. However, the energy resolution of CdTe detectors for MeV gamma-rays is rather poor because of the significant hole trapping effect. We have developed a method to improve the energy resolution by correcting the pulse height using the waveform of the signal and achieved 2.0% (FWHM) energy resolution for 662keV gamma-rays. Best energy resolution was achieved at temperatures between -10 degrees C and 0 degrees C.

Kikawa, T; Hiraki, T; Nakaya, T

2011-01-01T23:59:59.000Z

444

Improvement of the energy resolution of CdTe detectors by pulse height correction from waveform  

E-Print Network [OSTI]

Semiconductor detectors made of CdTe crystal have high gamma-ray detection efficiency and are usable at room temperature. However, the energy resolution of CdTe detectors for MeV gamma-rays is rather poor because of the significant hole trapping effect. We have developed a method to improve the energy resolution by correcting the pulse height using the waveform of the signal and achieved 2.0% (FWHM) energy resolution for 662keV gamma-rays. Best energy resolution was achieved at temperatures between -10 degrees C and 0 degrees C.

T. Kikawa; A. K. Ichikawa; T. Hiraki; T. Nakaya

2011-12-21T23:59:59.000Z

445

Ultrahigh Energy Cosmic Rays and Prompt TeV Gamma Rays from Gamma Ray Bursts  

E-Print Network [OSTI]

Gamma Ray Bursts (GRBs) have been proposed as one {\\it possible} class of sources of the Ultrahigh Energy Cosmic Ray (UHECR) events observed up to energies $\\gsim10^{20}\\ev$. The synchrotron radiation of the highest energy protons accelerated within the GRB source should produce gamma rays up to TeV energies. Here we briefly discuss the implications on the energetics of the GRB from the point of view of the detectability of the prompt TeV gamma rays of proton-synchrotron origin in GRBs in the up-coming ICECUBE muon detector in the south pole.

Pijushpani Bhattacharjee; Nayantara Gupta

2003-05-12T23:59:59.000Z

446

A search for neutrinoless double beta decay of 130Te with a low temperature calorimeter  

Science Journals Connector (OSTI)

Possible impacts of the bolometric technique on Neutrinoless Double Beta Decay (0??DVD) search are discussed. In this approach the performances of two TeO2 low temperature calorimeters with masses of 73 g and 340 g are reported: the FWHM resolutions are respectively 6 keV and 20 keV at 2614 keV. The operation of these detectors in a low background environment in the Gran Sasso underground laboratory has allowed to set a limit on the half?life of 130Te 2??DBD of about 2.51021 and to study the residual radioactive background components.

A. Alessandrello; C. Brofferio; D. V. Camin; O. Cremonesi; G. Gervasio; E. Fiorini; A. Giuliani; M. Pavan; G. Pessina; E. Previtali; L. Zanotti

1992-01-01T23:59:59.000Z

447

Shubnikov-de Haas Oscillations in the Bulk Rashba Semiconductor BiTeI  

SciTech Connect (OSTI)

Bulk magnetoresistance quantum oscillations are observed in high quality single crystal samples of BiTeI. This compound shows an extremely large internal spin-orbit coupling, associated with the polarity of the alternating Bi, Te, and I layers perpendicular to the c-axis. The corresponding areas of the inner and outer Fermi surfaces around the A-point show good agreement with theoretical calculations, demonstrating that the intrinsic bulk Rashba-type splitting is nearly 360 meV, comparable to the largest spin-orbit coupling generated in heterostructures and at surfaces.

Bell, C.; Bahramy, M.S.; Murakawa, H.; Checkelsky, J.G.; Arita, R.; Kaneko, Y.; Onose, Y.; Nagaosa, N.; Tokura, Y.; Hwang, H.Y.

2012-07-11T23:59:59.000Z

448

Use of a capillary X-ray focused beam to investigate the chemical composition of CdZnTe wafers with high resolution CdZnTe detectors  

SciTech Connect (OSTI)

The control of the concentration of Zn and its fluctuation in the high pressure Bridgman grown CdZnTe crystals is part of the characterization work on the ternary grown ingots grown in house. In order to reach both high sensitivity and high position resolution, the authors have developed a new system consisting of a X-ray generator, coupled to a focusing X-ray capillary, delivering intense beams in the micron scale, since the intensity gain is around a factor of 100 compared to conventional methods. The characteristic X-rays are measured through a high resolution CdZnTe detector (225 eV at 5.9 keV FWHM) cooled by a Peltier system. The results of the investigations on different kinds of crystals will be discussed.

Fougeres, P. [EURORAD, Strasbourg (France); Burggraf, Ch.; Burggraf, Chr.; Koebel, J.M.; Regal, R.; Hage-Ali, M.; Krauth, A.; Siffert, P. [CNRS, Strasbourg (France). Lab. PHASE; Koenig, C. [Univ. Louis Pasteur, Schiltigheim (France)

1998-12-31T23:59:59.000Z

449

Obtaining and investigation of Pb1-xMnxTe(Se, S) semimagnetic semiconductor nanolayers sesitive to infrared rays  

Science Journals Connector (OSTI)

In the given work the energy spectrum and wave functions have been theoretically calculated for quantum-sized films of Pb1-xMnxTe (Se,S) semimagnetic semiconductors. The photo-and electroluminescence properties of Pb1-xMnxTe ... Keywords: detector, electroluminescence, energy spectrum, infrared, nanolayer, photoluminescence, semimagnetic semiconductor, sensitive

M. A. Mehrabova; I. R. Nuriyev; R. M. Mamishova; T. I. Kerimova

2011-11-01T23:59:59.000Z

450

Search for resonances in the dijet mass spectrum from 7 TeV pp collisions at CMS  

E-Print Network [OSTI]

A search for narrow resonances with a mass of at least 1 TeV in the dijet mass spectrum is performed using pp collisions at ?s = 7 TeV corresponding to an integrated luminosity of 1 fb[superscript ?1], collected by the CMS ...

CMS Collaboration

451

The effect of impurities on the doping and VOC of CdTe/CdS thin film solar cells  

Science Journals Connector (OSTI)

The effect of introducing impurities in CdTe, namely antimony (Sb) and oxygen (O), on the net carrier concentration in CdS/CdTe solar cells and on their open-circuit voltage (VOC) has been investigated. Oxygen was introduced in the CdTe films during the deposition of this layer by the close-spaced sublimation process. The total pressure was held constant at 1330Pa (N2 and O2). The amount of oxygen was varied by varying its partial pressure. Antimony was introduced into CdTe using a post-deposition diffusion process. Following the deposition of CdTe a thin film (a few nm) of Sb was deposited onto the CdTe surface and subsequently heat-treated to cause in-diffusion of Sb. The temperature and time during the diffusion process were varied in the range of 300525C and 20160min respectively. In both instances it was possible to vary (increase) the doping concentration in CdTe. The increase in doping was accompanied by an increase in VOC. However, in all instances the doping in CdTe reached a maximum value, beyond which further increases were not possible leading to saturation in VOC. The highest VOC measured was similar to state-of-the-art values in the range of 800830mV, and the highest doping concentration measured was in the 1016cm?3 range.

H. Zhao; Alvi Farah; D. Morel; C.S. Ferekides

2009-01-01T23:59:59.000Z

452

PHOTOREFRACTIVE RESPONSE OF CdTe:V UNDER AC ELECTRIC FIELD FROM 1 TO 1.5m  

E-Print Network [OSTI]

for the extension of the photorefractive effect towards the wavelength region of 1.3-1.5µm. Cadmium Telluride (CdTe conduction (hole-electron competition). Sample and experimental set-up presentations : The CdTe sample we

453

Cadmium sulfate and CdTe-quantum dots alter DNA repair in zebrafish (Danio rerio) liver cells  

SciTech Connect (OSTI)

Increasing use of quantum dots (QDs) makes it necessary to evaluate their toxicological impacts on aquatic organisms, since their contamination of surface water is inevitable. This study compares the genotoxic effects of ionic Cd versus CdTe nanocrystals in zebrafish hepatocytes. After 24 h of CdSO{sub 4} or CdTe QD exposure, zebrafish liver (ZFL) cells showed a decreased number of viable cells, an accumulation of Cd, an increased formation of reactive oxygen species (ROS), and an induction of DNA strand breaks. Measured levels of stress defense and DNA repair genes were elevated in both cases. However, removal of bulky DNA adducts by nucleotide excision repair (NER) was inhibited with CdSO{sub 4} but not with CdTe QDs. The adverse effects caused by acute exposure of CdTe QDs might be mediated through differing mechanisms than those resulting from ionic cadmium toxicity, and studying the effects of metallic components may be not enough to explain QD toxicities in aquatic organisms. - Highlights: Both CdSO{sub 4} and CdTe QDs lead to cell death and Cd accumulation. Both CdSO{sub 4} and CdTe QDs induce cellular ROS generation and DNA strand breaks. Both CdSO{sub 4} and CdTe QDs induce the expressions of stress defense and DNA repair genes. NER repair capacity was inhibited with CdSO{sub 4} but not with CdTe QDs.

Tang, Song; Cai, Qingsong [The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79416 (United States); Chibli, Hicham [Department of Biomedical Engineering, McGill University, Montral, QC H3A 2B4 (Canada); Allagadda, Vinay [The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79416 (United States); Nadeau, Jay L. [Department of Biomedical Engineering, McGill University, Montral, QC H3A 2B4 (Canada); Mayer, Gregory D., E-mail: greg.mayer@ttu.edu [The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79416 (United States)

2013-10-15T23:59:59.000Z

454

STRUCTURAL AND CHEMICAL STUDIES ON CdTe/CdS THIN FILM SOLAR CELLS WITH ANALYTICAL TRANSMISSION ELECTRON MICROSCOPY  

E-Print Network [OSTI]

STRUCTURAL AND CHEMICAL STUDIES ON CdTe/CdS THIN FILM SOLAR CELLS WITH ANALYTICAL TRANSMISSION, A. N. Tiwari Thin Film Physics Group, Laboratory for Solid State Physics, Technopark ETH-Building, Technoparkstr. 1, CH-8005 Zurich, Switzerland ABSTRACT: CdTe/CdS thin £lm solar cells have been grown by closed

Romeo, Alessandro

455

Sonochemical and hydrothermal synthesis of PbTe nanostructures with the aid of a novel capping agent  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: PbTe nanostructures were prepared with the aid of Schiff-base compound. Sonochemical and hydrothermal methods were employed to fabricate PbTe nanostrucrues. The effect of preparation parameters on the morphology of PbTe was investigated. - Abstract: In this work, a new Schiff-base compound derived from 1,8-diamino-3,6-dioxaoctane and 2-hydroxy-1-naphthaldehyde marked as (2-HyNa)-(DaDo) was synthesized, characterized, and then used as capping agent for the preparation of PbTe nanostructures. To fabricate PbTe nanostructures, two different synthesis methods; hydrothermal and sonochemical routes, were applied. To further investigate, the effect of preparation parameters like reaction time and temperature in hydrothermal synthesis and sonication time in the presence of ultrasound irradiation on the morphology and purity of the final products was tested. The products were analyzed with the aid of SEM, TEM, XRD, FT-IR, and EDS. Based on the obtained results, it was found that pure cubic phased PbTe nanostructures have been obtained by hydrothermal and sonochemical approaches. Besides, SEM images showed that cubic-like and rod-like PbTe nanostructures have been formed by hydrothermal and sonochemical methods, respectively. Sonochemical synthesis of PbTe nanostructures was favorable, because the synthesis time of sonochemical method was shorter than that of hydrothermal method.

Fard-Fini, Shahla Ahmadian [Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Islamic Republic of Iran (Iran, Islamic Republic of); Salavati-Niasari, Masoud, E-mail: salavati@kashanu.ac.ir [Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, P.O. Box 87317-51167, Kashan, Islamic Republic of Iran (Iran, Islamic Republic of); Institute of Nano Science and Nano Technology, University of Kashan, P.O. Box 87317-51167, Kashan, Islamic Republic of Iran (Iran, Islamic Republic of); Mohandes, Fatemeh [Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, P.O. Box 87317-51167, Kashan, Islamic Republic of Iran (Iran, Islamic Republic of)

2013-10-15T23:59:59.000Z

456

Hydrogen passivation of Se and Te in AlSb M. D. McCluskey and E. E. Haller  

E-Print Network [OSTI]

Hydrogen passivation of Se and Te in AlSb M. D. McCluskey and E. E. Haller Lawrence Berkeley observed local vibrational modes LVM's arising from DX-hydrogen complex in AlSb. Hydrogen was diffused into bulk AlSb:Se and AlSb:Te by annealing in sealed quartz ampoules with either hydrogen gas or methanol CH

McCluskey, Matthew

457

A New LCA Methodology of Technology Evolution (TE-LCA) and its Application to the Production of Ammonia (1950-2000) (8 pp)  

Science Journals Connector (OSTI)

This paper presents a new LCA method of technology evolution (TE-LCA), and its application to the production ... over the last fifty years. The TE-LCA of a chemical process is the procedure ... then transformed ...

Ramon Mendivil; Ulrich Fischer

2006-03-01T23:59:59.000Z

458

Open-circuit voltage, fill factor, and efficiency of a CdS/CdTe solar cell  

SciTech Connect (OSTI)

The dependences of the open-circuit voltage, fill factor, and efficiency of the thin-film CdS/CdTe solar cell on the resistivity {rho} and carrier lifetime {tau} in the absorbing CdTe layer were studied. In the common case in which the uncompensated acceptor concentration and the electron lifetime in the CdTe layer are within 10{sup 15}-10{sup 16} cm{sup -3} and 10{sup -10}-10{sup -9} s, the calculation results correspond to the achieved efficiency of the best thin-film CdS/CdTe solar cells. It was shown that, by decreasing {rho} and increasing {tau} in the absorbing CdTe layer, the open-circuit voltage, fill factor, and efficiency can be substantially increased, with their values approaching the theoretical limit for such devices.

Kosyachenko, L. A., E-mail: lakos@chv.ukrpack.net; Grushko, E. V. [Yuriy Fedkovych Chernivtsi National University (Ukraine)

2010-10-15T23:59:59.000Z

459

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-Ion Battery Cathode  

Science Journals Connector (OSTI)

(1-21) Following the initial work by Padhi et al. on the inductive effects of polyanions in a phospho-olivine LiFePO4 cathode with an increased Fe2+/3+ redox couple potential, olivine structures have become the focus of Li-ion battery cathodes in recent years. ... This process shows potential for further improvement using a simplified synthesis route to obtain fully electrochemically active LiMnPO4, which appears to be a promising cathode material for Li-ion batteries. ... The low surface activity of this material, compared to lithiated transition-metal oxides used as cathode materials for Li-ion batteries, is due to the relatively low basicity and nucleophilicity of the O atoms in the olivine compds. ...

Daiwon Choi; Donghai Wang; In-Tae Bae; Jie Xiao; Zimin Nie; Wei Wang; Vilayanur V. Viswanathan; Yun Jung Lee; Ji-Guang Zhang; Gordon L. Graff; Zhenguo Yang; Jun Liu

2010-07-19T23:59:59.000Z

460

Combustion Synthesis of Nanoparticulate LiMgxMn1-xPO4 (x=0, 0.1, 0.2) Carbon Composites  

SciTech Connect (OSTI)

A combustion synthesis technique was used to prepare nanoparticulate LiMgxMn1-xPO4 (x=0, 0.1,0.2)/carbon composites. Powders consisted of carbon-coated particles about 30 nm in diameter, which were partly agglomerated into larger secondary particles. The utilization of the active materials in lithium cells depended most strongly upon the post-treatment and the Mg content, and was not influenced by the amount of carbon. Best results were achieved with a hydrothermally treated LiMg0.2Mn0.8PO4/C composite, which exhibited close to 50percent utilization of the theoretical capacity at a C/2 discharge rate.

Doeff, Marca M; Chen, Jiajun; Conry, Thomas E.; Wang, Ruigang; Wilcox, James; Aumentado, Albert

2009-12-14T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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

MATERIALS FOR SOLAR PHOTOCELLS : PLACE OF CdTe Laboratoire de Physique des Solides C. N. R. S., 1, place Aristide-Briand, 92190 Meudon, France  

E-Print Network [OSTI]

MATERIALS FOR SOLAR PHOTOCELLS : PLACE OF CdTe M. RODOT Laboratoire de Physique des Solides C. N. R général, puis appliqués à CdTe. On montre que CdTe est l'un des matériaux les plus prometteurs. Une revue des cellules au CdTe doivent encore être obtenues. Abstract. 2014 The choice of the best materials

Paris-Sud XI, Université de

462

Sr-90 Immobilization by Infiltration of a Ca-Citrate-PO{sub 4} Solution into the Hanford 100-N Area Vadose Zone  

SciTech Connect (OSTI)

This project was initiated to develop a strategy for infiltration of a Ca-citrate-PO{sub 4} solution in order to precipitate apatite [Ca{sub 6}(PO{sub 4}){sub 10}(OH){sub 2}] in desired locations in the vadose zone for Sr-90 remediation. Laboratory experiments have demonstrated that infiltration of a Ca-citrate-PO{sub 4} solution into sediments at low and high water saturation results in citrate biodegradation and formation of apatite. The citrate biodegradation rate was relatively uniform, in spite of the spatial variability of sediment microbial biomass, likely because of microbial transport processes that occur during solution infiltration. The precipitate was characterized as hydroxyapatite, and the Sr-90 substitution into apatite was shown to have an incorporation half-life of 5.5 to 16 months. One and two dimensional (1-D and 2-D) laboratory infiltration experiments quantified the spatial distribution of apatite that formed during solution infiltration. Slow infiltration in 2-D experiments at low water saturation show the apatite precipitate concentrated in the upper third of the infiltration zone. More rapid 1-D infiltration studies show the apatite precipitate concentrated at greater depth. (authors)

Szecsody, J.E.; Fruchter, J.S.; Burns, C.A.; Rockhold, M.L.; Oostrom, M.; Williams, M.D.; Vermeul, V.R. [Pacific Northwest National Laboratory, Richland, WA (United States)

2008-07-01T23:59:59.000Z

463

Effect of fuel rate and annealing process of LiFePO{sub 4} cathode material for Li-ion batteries synthesized by flame spray pyrolysis method  

SciTech Connect (OSTI)

In this study the effect of fuel rate and annealing on particle formation of LiFePO{sub 4} as battery cathode using flame spray pyrolysis method was investigated numerically and experimentally. Numerical study was done using ANSYS FLUENT program. In experimentally, LiFePO{sub 4} was synthesized from inorganic aqueous solution followed by annealing. LPG was used as fuel and air was used as oxidizer and carrier gas. Annealing process attempted in inert atmosphere at 700C for 240 min. Numerical result showed that the increase of fuel rate caused the increase of flame temperature. Microscopic observation using Scanning Electron Microscopy (SEM) revealed that all particles have sphere and polydisperse. Increasing fuel rate caused decreasing particle size and increasing particles crystallinity. This phenomenon attributed to the flame temperature. However, all produced particles still have more amorphous phase. Therefore, annealing needed to increase particles crystallinity. Fourier Transform Infrared (FTIR) analysis showed that all particles have PO4 function group. Increasing fuel rate led to the increase of infrared spectrum absorption corresponding to the increase of particles crystallinity. This result indicated that phosphate group vibrated easily in crystalline phase. From Electrochemical Impedance Spectroscopy (EIS) analysis, annealing can cause the increase of Li{sup +} diffusivity. The diffusivity coefficient of without and with annealing particles were 6.8439910{sup ?10} and 8.5988810{sup ?10} cm{sup 2} s{sup ?1}, respectively.

Halim, Abdul; Setyawan, Heru; Machmudah, Siti; Nurtono, Tantular; Winardi, Sugeng [Chemical Engineering, Sepuluh Nopember Institute of Technology, Kampus Sukolilo Surabaya Indonesia 60111 (Indonesia)

2014-02-24T23:59:59.000Z

464

HOMOGENEITY ALONG Cl-COMPENSATED THM GROWN CdTe INGOT NGO-TICH-PHUOC, G. M. MARTIN, C. BELIN and E. FABRE  

E-Print Network [OSTI]

195 HOMOGENEITY ALONG Cl-COMPENSATED THM GROWN CdTe INGOT NGO-TICH-PHUOC, G. M. MARTIN, C. BELIN resistivity CdTe is believed to present some potentialities as a material for y-rays detection at room carried out [8-9]. This paper presents an assessment of Cl-compen- sated, THM grown CdTe ingots : emphasis

Paris-Sud XI, Université de

465

THE RELATIONSHIP OF CdS/CdTe CELL BAND PROFILES TO J-V CHARACTERISTICS AND BIAS-DEPENDENT QUANTUM EFFICIENCY  

E-Print Network [OSTI]

-over, and, in some cases, long J-V and capacitance transient effects. CdTe is highly compensated containing by charge in the bulk CdTe within the absorber. PATHWAYS TO INCREASED EFFICIENCY There are several general to realize in practice. One pathway is by increasing the net negative charge in the CdTe by "p-type doping

Sites, James R.

466

Investigation of the evolution of single domain ,,111...B CdTe films by molecular beam epitaxy on miscut ,,001...Si substrate  

E-Print Network [OSTI]

Investigation of the evolution of single domain ,,111...B CdTe films by molecular beam epitaxy; accepted for publication 22 July 1998 A comprehensive view of the microstructure of 111 B CdTe films grown and scanning transmission electron microscopy. It is found that in the initial growth stage, CdTe nucleates

Pennycook, Steve

467

The irradiation hardness of CdTe solar cells was inves-tigated for extremely high fluence of protons (up to  

E-Print Network [OSTI]

ABSTRACT The irradiation hardness of CdTe solar cells was inves- tigated for extremely high fluence high fluences. One general degradation characteristic for CdTe cells was calculated using a damage dose formulation, allowing a comprehen- sive comparison with other cell technologies. CdTe cells show an excellent

Romeo, Alessandro

468

FLEXIBLE CdTe SOLAR CELLS BY A LOW TEMPERATURE PROCESS ON ITO/ZnO COATED A. Salavei, I. Rimmaudo, F. Piccinelli1  

E-Print Network [OSTI]

FLEXIBLE CdTe SOLAR CELLS BY A LOW TEMPERATURE PROCESS ON ITO/ZnO COATED POLYMERS A. Salavei, I of a deposition process for flexible CdTe devices on ITO/ZnO coated polymers. Optimization of fabrication process will be discussed. Keywords: Flexible Substrate, CdTe, ITO, Laser Processing, Thin Film Solar Cell 1 INTRODUCTION

Romeo, Alessandro

469

TeV J2032+4130: a not-so-dark Accelerator?  

E-Print Network [OSTI]

The HEGRA gamma-ray source TeV J2032+4130 is considered the prototypical 'dark accelerator', since it was the first TeV source detected with no firm counterparts at lower frequencies. The Whipple collaboration observed this source in 2003-5 and the emission hotspot appears displaced about 9 arcminutes to the northeast of the HEGRA position, though given the large positional uncertainties the HEGRA and Whipple positions are consistent. Here we report on Westerbork Synthesis Radio Telescope (WSRT), Very Large Array (VLA), Chandra and INTEGRAL data covering the locations of the Whipple and HEGRA hotspots. We confirm a dual-lobed radio source (also see Marti et al., 2007) coincident with the Whipple hotspot, as well as a weak, partially non-thermal shell-like object, with a location and morphology very similar to the HEGRA source, in our WSRT and mosaicked VLA datasets, respectively. Due to its extended nature, it is likely that the latter structure is a more plausible counterpart of the reported very high energy (VHE) gamma-ray emissions in this region. If so, TeV J2032+4130 may not be a 'dark accelerator' after all. Further observations with the new generation of imaging Cherenkov telescopes are needed to pin down the precise location and morphology of the TeV emission region and thus clear up the confusion over its possible lower frequency counterparts.

Yousaf M. Butt; Jorge A. Combi; Jeremy Drake; John P. Finley; Alexander Konopelko; Matthew Lister; Jerome Rodriguez; Debra Shepherd

2006-11-23T23:59:59.000Z

470

Accelerated Stress Testing and Diagnostic Analysis of Degradation in CdTe Solar Cells  

SciTech Connect (OSTI)

The primary goal of this study was to ascertain the presence and types of mechanisms affecting CdS/CdTe device stability in the temperature range of 60 to 120 ..deg..C. It should be noted that the results presented were specific to cells made using the specific growth conditions described.

Albin, D. S.

2008-11-01T23:59:59.000Z

471

First measurement of hadronic event shapes in pp collisions at ?s = 7 TeV  

E-Print Network [OSTI]

Hadronic event shapes have been measured in protonproton collisions at ?s =7 TeV, with a data sample collected with the CMS detector at the LHC. The sample corresponds to an integrated luminosity of 3.2 pb-1. Event-shape ...

CMS Collaboration

472

Results on CP Violation from Belle T.E. Browder representing the Belle Collaboration  

E-Print Network [OSTI]

Results on CP Violation from Belle T.E. Browder representing the Belle Collaboration Department of Physics, University of Hawaii, Honolulu, Hawaii Abstract. I describe the recent measurement of the CP In 1973, Kobayashi and Maskawa (KM) first proposed a model where CP violation is incorporated

Browder, Tom

473

14%-efficient flexible CdTe solar cells on ultra-thin glass substrates  

SciTech Connect (OSTI)

Flexible glass enables high-temperature, roll-to-roll processing of superstrate devices with higher photocurrents than flexible polymer foils because of its higher optical transmission. Using flexible glass in our high-temperature CdTe process, we achieved a certified record conversion efficiency of 14.05% for a flexible CdTe solar cell. Little has been reported on the flexibility of CdTe devices, so we investigated the effects of three different static bending conditions on device performance. We observed a consistent trend of increased short-circuit current and fill factor, whereas the open-circuit voltage consistently dropped. The quantum efficiency under the same static bend condition showed no change in the response. After storage in a flexed state for 24 h, there was very little change in device efficiency relative to its unflexed state. This indicates that flexible glass is a suitable replacement for rigid glass substrates, and that CdTe solar cells can tolerate bending without a decrease in device performance.

Rance, W. L.; Burst, J. M.; Reese, M. O.; Gessert, T. A.; Metzger, W. K.; Barnes, T. M. [National Renewable Energy Laboratory, Golden, Colorado 80401 (United States); Meysing, D. M.; Wolden, C. A. [Colorado School of Mines, Golden, Colorado 80401 (United States); Garner, S.; Cimo, P. [Corning Incorporated, Corning, New York 14831 (United States)

2014-04-07T23:59:59.000Z

474

MilagroA TeV Observatory for Gamma Ray Bursts  

E-Print Network [OSTI]

Milagro­A TeV Observatory for Gamma Ray Bursts B.L. Dingus and the Milagro Collaboration Los energy gamma-rays from gamma-ray bursts. The highest energy gamma rays supply very strong constraints on the nature of gamma-ray burst sources as well as fundamental physics. Because the highest energy gamma-rays

California at Santa Cruz, University of

475

Rational Synthesis of Ultrathin n-Type Bi2Te3 Nanowires with Enhanced Thermoelectric Properties  

E-Print Network [OSTI]

, which can generate electricity by recovering waste heat or be used as solid-state cooling devices, have-based thermoelectric power generation and solid-state cooling devices with superior performance in a reliableRational Synthesis of Ultrathin n-Type Bi2Te3 Nanowires with Enhanced Thermoelectric Properties

Xu, Xianfan

476

Expectations for neutron-antineutron oscillation time from TeV scale baryogenesis  

SciTech Connect (OSTI)

A TeV scale extension of the standard model that incorporates the seesaw mechanism for neutrino masses along with quark-lepton unification is presented. It is shown that this model leads to the {Delta}B= 2 baryon number violating process of neutron-antineutron (n-bar n) oscillation. The model has all the ingredients to generate the observed baryon asymmetry of the universe using the B-violating decay of a scalar field involved in the seesaw mechanism. The B-violating decay arises from the exchange of color sextet scalars which have TeV scale masses. Baryogenesis occurs below the sphaleron decoupling temperature and has been termed post-sphaleron baryogenesis. Here we show that the constraints of TeV scale baryogenesis, when combined with the neutrino oscillation data and restrictions from flavor changing neutral currents mediated by the colored scalars imply an upper limit on the n-bar n oscillation time of 5 Multiplication-Sign 10{sup 10} sec. regardless of the quark-lepton unification scale. If this scale is relatively low, in the (200 - 250) TeV range, {tau}{sub n-bar} {sub n} is predicted to be less than 10{sup 10} sec., which is accessible to the next generation of proposed experiments.

Babu, K. S. [Department of Physics, Oklahoma State University, Stillwater, OK 74078 (United States); Bhupal Dev, P. S. [Consortium for Fundamental Physics, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL (United Kingdom); Fortes, Elaine C. F. S. [Instituto de Fisica Teorica-Universidade Estadual Paulista, R. Dr. Bento Teobaldo Ferraz 271, Sao Paulo-SP, 01140-070 (Brazil); Mohapatra, Rabindra N. [Maryland Center for Fundamental Physics and Department of Physics, University of Maryland, College Park, MD 20742 (United States)

2013-05-23T23:59:59.000Z

477

REVIEW OF OPTICAL APPLICATIONS OF CdTe Mobil Tyco Solar Energy Corporation 16 Hickory Drive  

E-Print Network [OSTI]

REVIEW OF OPTICAL APPLICATIONS OF CdTe R. O. BELL Mobil Tyco Solar Energy Corporation 16 Hickory of optical applications. These include electrooptic modulation, high power laser windows, electroluminescence will be paid to the various optical absorption mechanisms and the effects of impurities on the optical behavior

Paris-Sud XI, Université de

478

Investigation of deep level defects in CdTe thin films  

SciTech Connect (OSTI)

In the past few years, a large body of work has been dedicated to CdTe thin film semiconductors, as the electronic and optical properties of CdTe nanostructures make them desirable for photovoltaic applications. The performance of semiconductor devices is greatly influenced by the deep levels. Knowledge of parameters of deep levels present in as-grown materials and the identification of their origin is the key factor in the development of photovoltaic device performance. Photo Induced Current Transient Spectroscopy technique (PICTS) has proven to be a very powerful method for the study of deep levels enabling us to identify the type of traps, their activation energy and apparent capture cross section. In the present work, we report the effect of growth parameters and LASER irradiation intensity on the photo-electric and transport properties of CdTe thin films prepared by Close-Space Sublimation method using SiC electrical heating element. CdTe thin films were grown at three different source temperatures (630, 650 and 700 C). The grown films were irradiated with Nd:YAG LASER and characterized by Photo-Induced Current Transient Spectroscopy, Photocurrent measurementand Current Voltage measurements. The defect levels are found to be significantly influenced by the growth temperature.

Shankar, H.; Castaldini, A. [Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, I-40127 Bologna (Italy); Dieguez, E.; Rubio, S. [Crystal Growth Lab, Department of Materials Physics, Faculty of Science, University Autonoma of Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid (Spain); Dauksta, E.; Medvid, A. [Institute of Technical Physics, Riga Technical University, 14 Azenes Str, Riga, Latvia, Department of Materials (Latvia); Cavallini, A. [Department of Physics and Astronomy,University of Bologna, Viale Berti Pichat 6/2, I-40127 Bologna (Italy)

2014-02-21T23:59:59.000Z

479

Comparison of Minority Carrier Lifetime Measurements in Superstrate and Substrate CdTe PV Devices  

SciTech Connect (OSTI)

We discuss typical and alternative procedures to analyze time-resolved photoluminescence (TRPL) measurements of minority carrier lifetime (MCL) with the hope of enhancing our understanding of how this technique may be used to better analyze CdTe photovoltaic (PV) device functionality. Historically, TRPL measurements of the fast recombination rate (t{sub 1}) have provided insightful correlation with broad device functionality. However, we have more recently found that t{sub 1} does not correlate as well with smaller changes in device performance, nor does it correlate well with performance differences observed between superstrate and substrate CdTe PV devices. This study presents TRPL data for both superstrate and substrate CdTe devices where both t{sub 1} and the slower TRPL decay (t{sub 2}) are analyzed. The study shows that changes in performance expected from small changes in device processing may correlate better with t{sub 2}. Numerical modeling further suggests that, for devices that are expected to have similar drift field in the depletion region, effects of changes in bulk MCL and interface recombination should be more pronounced in t{sub 2}. Although this technique may provide future guidance to improving CdS/CdTe device performance, it is often difficult to extract statistically precise values for t{sub 2}, and therefore t{sub 2} data may demonstrate significant scatter when correlated with performance parameters.

Gessert, T. A.; Dhere, R. G.; Duenow, J. N.; Kuciauskas, D.; Kanevce, A.; Bergeson, J. D.

2011-01-01T23:59:59.000Z

480

Nanoassembly control and optical absorption in CdTe-ZnO nanocomposite thin films  

SciTech Connect (OSTI)

The spatial distribution of CdTe nanoparticles within a ZnO thin-film matrix was manipulated using a dual-source, sequential radio-frequency (RF)-sputter deposition technique to produce nanocomposite materials with tuned spectral absorption characteristics. The relative substrate exposure time to each sputtering source was used to control the semiconductor phase connectivity, both within the film plane and along the film growth direction, to influence the degree of photocarrier confinement and the resulting optical transition energies exhibited by the CdTe phase. Significant changes (up to {Delta}E {approx_equal} 0.3 eV) in the absorption onset energy for the CdTe nanoparticle ensemble were produced through modification in the extended structure of the semiconductor phase. Raman spectroscopy, cross-sectional transmission electron microscopy, and x-ray diffraction were used to confirm the phase identity of the CdTe and ZnO and to characterize the nanostructures produced in these composite films. Isochronal annealing for 5 min at temperatures up to 800 deg. C further indicated the potential to improve film crystallinity as well as to establish the post-deposition thermal processing limits of stability for the semiconductor phase. The study highlights the significance of ensemble behavior as a means to influence quantum-scale semiconductor optical characteristics of import to the use of such materials as the basis for a variety of optoelectronic devices, including photosensitized heterojunction components in thin film photovoltaics.

Potter, B. G. Jr. [Materials Science and Engineering Department, University of Arizona, Tucson, Arizona 85721 (United States); College of Optical Sciences, University of Arizona, Tucson, Arizona 85721 (United States); Beal, R. J.; Allen, C. G. [Materials Science and Engineering Department, University of Arizona, Tucson, Arizona 85721 (United States)

2012-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "te po lv" 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.


481

OpTeC Annual Meeting Agenda 1 11 Sept. 2014 Optical Science & Engineering Conference  

E-Print Network [OSTI]

Devices for Polarization Control 9:05 am Tianbo Liu & David Dickensheets MSU Electrical and Computer in an SOFC #12;OpTeC Annual Meeting Agenda 2 11 Sept. 2014 9:40 am Alexander Mikhaylov,a Lauren Bennett

Maxwell, Bruce D.

482

Enhanced Thermoelectric Properties of Solution Grown Bi2Te3-xSex Nanoplatelet Composites  

E-Print Network [OSTI]

is the lattice contributions) and T is average absolute temperature. An ideal thermoelectric material on the efficiency of thermoelectric materials, and hence a decoupling of these parameters is required to improveEnhanced Thermoelectric Properties of Solution Grown Bi2Te3-xSex Nanoplatelet Composites Ajay Soni

Xiong, Qihua

483

DAnTE: a statistical tool for quantitative analysis of -omics data  

Science Journals Connector (OSTI)

......employing the Shapiro-Wilks test and features two non-parametric hypothesis tests (Wilcoxon rank sum test and Kruskal-Wallis test) when the normality assumption fails to hold. 3 SUMMARY DAnTE is designed as a complete downstream analysis......

Ashoka D. Polpitiya; Wei-Jun Qian; Navdeep Jaitly; Vladislav A. Petyuk; Joshua N. Adkins; David G. Camp; II; Gordon A. Anderson; Richard D. Smith

2008-07-01T23:59:59.000Z

484

High thermoelectric performance by resonant dopant indium in nanostructured SnTe  

E-Print Network [OSTI]

From an environmental perspective, lead-free SnTe would be preferable for solid-state waste heat recovery if its thermoelectric figure-of-merit could be brought close to that of the lead-containing chalcogenides. In this ...

Liao, Bolin

485

Study of forward Z + jet production in pp collisions at ?s = 7 TeV  

E-Print Network [OSTI]

A measurement of the Z(? ? [superscript +] ? [superscript ?]) + jet production cross-section in pp collisions at a centre-of-mass energy ?s = 7 TeV is presented. The analysis is based on an integrated luminosity of 1.0 ...

Williams, Michael

486

Spray Deposition of High Quality CuInSe2 and CdTe Films: Preprint  

SciTech Connect (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

487

Could the Wein fireball be associated to the "orphan" TeV flares ?  

E-Print Network [OSTI]

TeV $\\gamma$-ray detections in flaring states without activity in X-rays from blazars have attracted much attention due to the irregularity of these "orphan" flares. Although the synchrotron self-Compton model has been very successful in explaining the spectral energy distribution and spectral variability of these sources, it has not been able to describe these atypical flaring events. On the other hand, an electron-positron pair plasma at the base of the AGN jet was proposed as the mechanism of bulk acceleration of relativistic outflows. This plasma in quasi-themal equilibrium called Wein fireball emits radiation at MeV-peak energies serving as target of accelerated protons. In this work we describe the "orphan" TeV flares presented in blazars 1ES 1959+650 and Mrk421 assuming geometrical considerations in the jet and evoking the interactions of Fermi-accelerated protons and MeV-peak target photons coming from the Wein fireball. After describing successfully these "orphan" TeV flares, we correlate the TeV $\\g...

Fraija, Nissim

2015-01-01T23:59:59.000Z

488

Industrial Upscaling of CdTe/CdS Thin Film Solar Cells , A. Bosioa  

E-Print Network [OSTI]

, with the participation of the Marcegaglia industrial group, IFIS Bank of Venice, the contribution of Ministry 905223. E-mail address: Nicola.Romeo@unipr.it (Nicola Romeo). 1 INTRODUCTION CdTe with its energy gap" which means that only a few microns of the material are needed to absorb 90% of photons with energy

Romeo, Alessandro

489

1. INTRODUCTION Polycrystalline CdTe thin films solar cells have shown long  

E-Print Network [OSTI]

to the solar panel that can be adapted to any kind of shape and is easy to deploy in space. We have developed1. INTRODUCTION Polycrystalline CdTe thin films solar cells have shown long term stable performance for the solar cell, therefore high specific power (ratio of out- put power to the weight) solar cells

Romeo, Alessandro

490

Nuclear structure relevant to neutrinoless double beta decay candidate {sup 130}Te and other recent results  

SciTech Connect (OSTI)

We have undertaken a series of single-nucleon and pair transfer reaction measurements to help constrain calculations of the nuclear matrix elements for neutrinoless double beta decay. In this talk, a short overview of measurements relevant to the {sup 130}Te?{sup 130}Xe system is given. Brief mention is made of other recent and forthcoming results.

Kay, B. P. [Physics Division, Argonne National Laboratory, Illinois 60439 (United States)

2013-12-30T23:59:59.000Z

491

211 Westcott Building, 222 S. Copeland Avenue, P.O. Box 3061480, Tallahassee, FL 32306-1480 Telephone 850.644.6876, Fax 850.644.3375 http://fda.fsu.edu  

E-Print Network [OSTI]

211 Westcott Building, 222 S. Copeland Avenue, P.O. Box 3061480, Tallahassee, FL 32306 in the Office of the Vice President for Faculty Development and Advancement in Westcott 115 by Monday, October 7

Sura, Philip

492

408 Westcott Building, Florida State University, P.O. Box 3061410, Tallahassee, FL 32306-1410 Telephone 850.644.3501 Fax 850.644.2969 www.gradschool.fsu.edu  

E-Print Network [OSTI]

408 Westcott Building, Florida State University, P.O. Box 3061410, Tallahassee, FL 32306 Westcott. Student deadline to departments is February 1, 2011. Folders for all nominees are due

Bowers, Philip L.

493

Postal address School of Industrial Design, LTH, P.O. Box 118, 221 00 Lund, SWEDEN Telephone +46 46 222 71 88 E-mail Lynn.Lindegren@kansli.lth.se Website www.industrialdesign.lth.se  

E-Print Network [OSTI]

Postal address School of Industrial Design, LTH, P.O. Box 118, 221 00 Lund, SWEDEN Telephone +46 46 of Industrial Design spring semester 2014. Full-time studies in Sweden are 30 ECTS. BA programme ­ 2nd semester

494

Enhanced rate capability of LiMn0.9Mg0.1PO4 nanoplates by reduced graphene oxide/carbon double coating for Li-ion batteries  

E-Print Network [OSTI]

March 2014 Available online 12 March 2014 Keywords: Li-ion battery LiMnPO4 Reduced graphene oxide ChargeEnhanced rate capability of LiMn0.9Mg0.1PO4 nanoplates by reduced graphene oxide/carbon double coating for Li-ion batteries Sungun Wi a , Jaewon Kim a , Seunghoon Nam a , Joonhyeon Kang a , Sangheon

Park, Byungwoo

495

Synthesis and characterization of Pt-doped LiFePO4/C composites using the solgel method as the cathode material in lithium-ion batteries  

Science Journals Connector (OSTI)

The LiFePO4 and LiFe0.96Pt0.04PO4 samples were synthesized using the solgel method. The precursor materials were Li(CH3COO) (lithium acetate, Alfa Aesar), Fe(NO3)39H2O (iron nitrate, Sigma Aldrich), H2PtCl66H2

M. Talebi-Esfandarani; O. Savadogo

2014-05-01T23:59:59.000Z

496

Measuring the Invisible Higgs Width at the 7 and 8 TeV LHC  

E-Print Network [OSTI]

The LHC is well on track toward the discovery or exclusion of a light Standard Model (SM)-like Higgs boson. Such a Higgs has a very small SM width and can easily have large branching fractions to physics beyond the SM, making Higgs decays an excellent opportunity to observe new physics. Decays into collider-invisible particles are particularly interesting as they are theoretically well motivated and relatively clean experimentally. In this work we estimate the potential of the 7 and 8 TeV LHC to observe an invisible Higgs branching fraction. We analyze three channels that can be used to directly study the invisible Higgs branching ratio at the 7 TeV LHC: an invisible Higgs produced in association with (i) a hard jet; (ii) a leptonic Z; and (iii) forward tagging jets. We find that the last channel, where the Higgs is produced via weak boson fusion, is the most sensitive, allowing branching fractions as small as 40% to be probed at 20 inverse fb for masses in the range between 120 and 170 GeV, including in particular the interesting region around 125 GeV. We provide an estimate of the 8 TeV LHC sensitivity to an invisibly-decaying Higgs produced via weak boson fusion and find that the reach is comparable to but not better than the reach at the 7 TeV LHC. We further estimate the discovery potential at the 8 TeV LHC for cases where the Higgs has substantial branching fractions to both visible and invisible final states.

Yang Bai; Patrick Draper; Jessie Shelton

2011-12-19T23:59:59.000Z

497

First-principles calculations to investigate structural, electronic and optical properties of (BeTe)n/(CdS)n superlattices  

Science Journals Connector (OSTI)

Abstract Structural, electronic and optical properties of binary BeTe and CdS compounds and their (BeTe)n/(CdS)n superlattices (SLs) are investigated using the first-principles full potential linear muffin-tin orbitals method (FP-LMTO). The exchangecorrelation potential is treated with the local density approximation of Perdew and Wang (LDA-PW). The ground-state properties are determined for the bulk materials (BeTe, CdS, and (BeTe)n/(CdS)n) in cubic phase. The calculated structural properties of BeTe and CdS compounds are in good agreement with available experimental and theoretical data. It is found that BeTe exhibit an indirect fundamental band gap and CdS and their superlattices (SLs) exhibit a direct fundamental band gap, which might make (BeTe)n/(CdS)n superlattices (SLs) materials promising and useful for optoelectronic applications. The fundamental band gap decreases with increasing the number of monolayer n.

L. Djoudi; M. Merabet; M. Boucharef; S. Benalia; D. Rached

2014-01-01T23:59:59.000Z

498

Optical contrast and laser-induced phase transition in GeCu{sub 2}Te{sub 3} thin film  

SciTech Connect (OSTI)

Fast crystallization and low power amorphization are essential to achieve rapid data recording and low power consumption in phase-change memory. This work investigated the laser-induced phase transition behaviors of GeCu{sub 2}Te{sub 3} film based on the reflectance of amorphous and crystalline states. The GeCu{sub 2}Te{sub 3} film showed a reflectance decrease upon crystallization, which was the opposite behavior in Ge{sub 2}Sb{sub 2}Te{sub 5} film. The crystallization starting time of the as-deposited GeCu{sub 2}Te{sub 3} film was as fast as that of the as-deposited Ge{sub 2}Sb{sub 2}Te{sub 5} film. Furthermore, the GeCu{sub 2}Te{sub 3} crystalline film was found to be reamorphized by laser irradiation at lower power and shorter pulse width than the Ge{sub 2}Sb{sub 2}Te{sub 5}.

Saito, Yuta; Sutou, Yuji; Koike, Junichi [Department of Materials Science, Tohoku University, 6-6-11-1016 Aoba-yama, Aoba-ku, Sendai 980-8579 (Japan)] [Department of Materials Science, Tohoku University, 6-6-11-1016 Aoba-yama, Aoba-ku, Sendai 980-8579 (Japan)

2013-02-04T23:59:59.000Z

499

Room-Temperature Ferromagnetism in a II-VI Diluted Magnetic Semiconductor Zn1-xCrxTe  

Science Journals Connector (OSTI)

The magnetic and magneto-optical properties of a Cr-doped II-VI semiconductor ZnTe were investigated. Magnetic circular dichroism measurements showed a strong interaction between the sp carriers and localized d spins, indicating that Zn1-xCrxTe is a diluted magnetic semiconductor. The Curie temperature of the film with x=0.20 was estimated to be 30010???K, which is the highest value ever reported for a diluted magnetic semiconductor in which sp-d interactions were confirmed. In spite of its high Curie temperature, Zn1-xCrxTe film shows semiconducting electrical transport properties.

H. Saito; V. Zayets; S. Yamagata; K. Ando

2003-05-20T23:59:59.000Z

500

Formation of core/shell-like ZnSe(1?x)Te(x) nanocrystals due to equilibrium surface segregation  

SciTech Connect (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