National Library of Energy BETA

Sample records for interface science solar

  1. Solar Energy Science Projects

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

    Science Projects Curriculum: Solar Power -(thermodynamics, lightelectromagnetic, radiation, energy transformation, conductionconvection, seasons, trigonometry) Grade Level: ...

  2. Solar Photochemistry | U.S. DOE Office of Science (SC)

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

    Solar Photochemistry Chemical Sciences, Geosciences, & Biosciences (CSGB) Division CSGB Home About Research Areas Energy Frontier Research Centers (EFRCs) DOE Energy Innovation Hubs Reports and Activities Science Highlights Principal Investigators' Meetings BES Home Research Areas Solar Photochemistry Print Text Size: A A A FeedbackShare Page This research area supports molecular-level research on solar energy capture and conversion in the condensed phase and at interfaces. These

  3. Science at the interface : grain boundaries in nanocrystalline...

    Office of Scientific and Technical Information (OSTI)

    Science at the interface : grain boundaries in nanocrystalline metals. Citation Details In-Document Search Title: Science at the interface : grain boundaries in nanocrystalline ...

  4. Sandia National Labs: PCNSC: Departments: Surface and Interface Sciences

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

    Home About Us Departments Radiation, Nano Materials, & Interface Sciences > Radiation & Solid Interactions > Nanomaterials Sciences > Surface & Interface Sciences Semiconductor & Optical Sciences Energy Sciences Small Science Cluster Business Office News Partnering Research Carlos Gutierrez Carlos Gutierrez Manager Resources Department Folder 01114 Sharepoint Visit Our Labs Grest Group Nanorheology Research (514 KB PDF) Interfacial Force Microscopy Group (701 KB PDF)

  5. Science Highlights- Center for Solar and Thermal Energy Conversion

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

    Highlight Slides Abstracts (Click on Title) and Science Highlight Slides (Click on Image) Highlights From 2014 Comparison of Ultrafast Pulse Measurement Methods Low-temperature Physical Properties of Cu2Se Modeling the Role of Donor/Acceptor Interface in Charge Transfer in SubPc/C60-based Solar Cells Universal Design Principles for Cascade Heterojunction Solar Cells with High Fill Factors and Internal Quantum Efficiencies Approaching 100% Exciton Management in Organic Photovoltaic Multi-donor

  6. Lien Ze day Solar Hunan Science and Technology | Open Energy...

    Open Energy Info (EERE)

    day Solar Hunan Science and Technology Jump to: navigation, search Name: Lien Ze-day Solar Hunan Science and Technology Place: Xiangtan, Hunan Province, China Product: PV cell...

  7. Sichuan Apollo Solar Science Technology Co Ltd | Open Energy...

    Open Energy Info (EERE)

    Sichuan Apollo Solar Science Technology Co Ltd Jump to: navigation, search Name: Sichuan Apollo Solar Science & Technology Co Ltd Place: Chengdu, Sichuan Province, China Zip:...

  8. Shanghai Chaori Solar Energy Science Technology Development Co...

    Open Energy Info (EERE)

    Chaori Solar Energy Science Technology Development Co Ltd Jump to: navigation, search Name: Shanghai Chaori Solar Energy Science & Technology Development Co Ltd Place: Shanghai,...

  9. Zhangzhou Guolv Solar Science and Technology Co Ltd | Open Energy...

    Open Energy Info (EERE)

    Zhangzhou Guolv Solar Science and Technology Co Ltd Jump to: navigation, search Name: Zhangzhou Guolv Solar Science and Technology Co Ltd Place: Fujian Province, China Zip: 363600...

  10. Trony Solar Corporation formerly Shenzhen Trony Science Technology...

    Open Energy Info (EERE)

    Trony Solar Corporation formerly Shenzhen Trony Science Technology Development Co Ltd Jump to: navigation, search Name: Trony Solar Corporation (formerly Shenzhen Trony Science &...

  11. Wuxi Erquan Solar Energy Science Technology Co Ltd | Open Energy...

    Open Energy Info (EERE)

    Erquan Solar Energy Science Technology Co Ltd Jump to: navigation, search Name: Wuxi Erquan Solar Energy Science& Technology Co Ltd Place: Wuxi, Jiangsu Province, China Zip: 214128...

  12. Qinhuangdao Rising Solar Energy Science and Technology Co Ltd...

    Open Energy Info (EERE)

    Rising Solar Energy Science and Technology Co Ltd Jump to: navigation, search Name: Qinhuangdao Rising Solar Energy Science and Technology Co., Ltd Place: Qinhuadao, Hebei...

  13. Wuxi Shangpin Solar Energy Science Technology Co | Open Energy...

    Open Energy Info (EERE)

    Shangpin Solar Energy Science Technology Co Jump to: navigation, search Name: Wuxi Shangpin Solar Energy Science & Technology Co Place: Wuxi, Jiangsu Province, China Product:...

  14. Shanshan Ulica Solar Energy Science Technology Co Ltd | Open...

    Open Energy Info (EERE)

    Ulica Solar Energy Science Technology Co Ltd Jump to: navigation, search Name: Shanshan Ulica Solar Energy Science&Technology Co Ltd Place: Shanghai, Shanghai Municipality, China...

  15. Rising Solar Energy Science and Technology Co Ltd | Open Energy...

    Open Energy Info (EERE)

    Rising Solar Energy Science and Technology Co Ltd Place: Qinhuangdao, Hebei Province, China Zip: 66600 Sector: Solar Product: Chinese solar module laminator manufacturer...

  16. Basic research needs and opportunities on interfaces in solar materials

    SciTech Connect (OSTI)

    Czanderna, A. W.; Gottschall, R. J.

    1981-04-01

    The workshop on research needs and recommended research programs on interfaces in solar energy conversion devices was held June 30-July 3, 1980. The papers deal mainly with solid-solid, solid-liquid, and solid-gas interfaces, sometimes involving multilayer solid-solid interfaces. They deal mainly with instrumental techniques of studying these interfaces so they can be optimized, so they can be fabricated with quality control and so changes with time can be forecast. The latter is required because a long lifetime (20 yrs is suggested) is necessary for economic reasons. Fifteen papers have been entered individually into EDB and ERA. (LTN)

  17. Surface and interface modification science and technology.

    SciTech Connect (OSTI)

    Park, J.-H.

    1999-07-19

    Surface modification of solids is of scientific and technological interest due to its significant benefits in a wide variety of applications. Various coatings applications such as corrosion protection and electrical insulators and conductors are required for proper engineering design based on geometrical relationships between interfaces and on thermodynamic/kinetic considerations for the development of surface modifications. This paper will explore three basic examples: the proton conductor BaCeO{sub 3}, high-temperature protective coatings, and epitaxial relationships between interfaces.

  18. MEIS: Molecular Environmental & Interface Science

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

    People BL 11-2 Reports &Publications Model Compound Library SixPACK Glitch Curves MES User Resources & Instrumentation Environmental Remediation Science at SSRL MEIS Home SSRL Stanford EMSI SLAC Beam line resources and instrumentation Fundamental and applied research Why synchrotrons for environmental science? Molecular Environmental Science (MES) research at SSRL focuses on the fundamental interfacial, molecular- and nano-scale processes that control contaminant and nutrient cycling in

  19. CEEG Shanghai Solar Science Technology | Open Energy Information

    Open Energy Info (EERE)

    integrates services including the research, development, production, sales of polysilicon solar panel References: CEEG (Shanghai) Solar Science & Technology1 This article is a...

  20. Solar Energy Educational Material, Activities and Science Projects

    Office of Scientific and Technical Information (OSTI)

    DOE Documents with ActivitiesProjects: Web Pages Solar Energy Education. Renewable Energy Activities for Junior HighMiddle School Science Solar Energy Education. Renewable Energy ...

  1. Science on the Hill: Turning windows into solar panels

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

    Science on the Hill: Turning windows into solar panels Turning windows into solar panels Working with quantum dots, researchers achieve a breakthrough in solar-concentrating technology that can turn windows into electric generators. February 7, 2016 solar panel windows The luminescent solar concentrator could turn any window into a daytime power source. Science on the Hill: Turning windows into solar panels Sunlight is abundant, free and for all practical purposes, eternal. Harvesting that light

  2. Materials Science | Concentrating Solar Power | NREL

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

    Materials Science National Renewable Energy Laboratory (NREL) researchers develop and support others in developing materials for use in concentrating solar power (CSP). These materials include higher-reflectivity mirrors, better thermal-absorbing receivers, and more corrosion-resistant materials. Researchers also test the durability of these materials. NREL researchers are working to under-stand the fundamental corrosion mechanisms of materials when exposed to high-temperature fluids. Learn more

  3. Interface engineering for efficient fullerene-free organic solar cells

    SciTech Connect (OSTI)

    Shivanna, Ravichandran; Narayan, K. S. E-mail: narayan@jncasr.ac.in; Rajaram, Sridhar E-mail: narayan@jncasr.ac.in

    2015-03-23

    We demonstrate the role of zinc oxide (ZnO) morphology and addition of an acceptor interlayer to achieve high efficiency fullerene-free bulk heterojunction inverted organic solar cells. Nanopatterning of the ZnO buffer layer enhances the effective light absorption in the active layer, and the insertion of a twisted perylene acceptor layer planarizes and decreases the electron extraction barrier. Along with an increase in current homogeneity, the reduced work function difference and selective transport of electrons prevent the accumulation of charges and decrease the electron-hole recombination at the interface. These factors enable an overall increase of efficiency to 4.6%, which is significant for a fullerene-free solution-processed organic solar cell.

  4. New Opportunities for Outer Solar System Science using Radioisotope

    Office of Scientific and Technical Information (OSTI)

    Opportunities for Outer Solar System Science using Radioisotope Electric Propulsion Noble, Robert J.; SLAC; Amini, Rashied; Beauchamp, Patricia M.; Caltech, JPL; Bennett, Gary...

  5. Solar Energy Education. Renewable energy activities for earth science

    SciTech Connect (OSTI)

    Not Available

    1980-01-01

    A teaching manual is provided to aid teachers in introducing renewable energy topics to earth science students. The main emphasis is placed on solar energy. Activities for the student include a study of the greenhouse effect, solar gain for home heating, measuring solar radiation, and the construction of a model solar still to obtain fresh water. Instructions for the construction of apparatus to demonstrate a solar still, the greenhouse effect and measurement of the altitude and azimuth of the sun are included. (BCS)

  6. AN INTERFACE REGION IMAGING SPECTROGRAPH FIRST VIEW ON SOLAR SPICULES

    SciTech Connect (OSTI)

    Pereira, T. M. D.; De Pontieu, B.; Carlsson, M.; Hansteen, V.; Tarbell, T. D.; Lemen, J.; Title, A.; Boerner, P.; Hurlburt, N.; Wülser, J. P.; Martínez-Sykora, J.; Kleint, L.; Golub, L.; McKillop, S.; Reeves, K. K.; Saar, S.; Testa, P.; Tian, H.; Jaeggli, S.; Kankelborg, C.

    2014-09-01

    Solar spicules have eluded modelers and observers for decades. Since the discovery of the more energetic type II, spicules have become a heated topic but their contribution to the energy balance of the low solar atmosphere remains unknown. Here we give a first glimpse of what quiet-Sun spicules look like when observed with NASA's recently launched Interface Region Imaging Spectrograph (IRIS). Using IRIS spectra and filtergrams that sample the chromosphere and transition region, we compare the properties and evolution of spicules as observed in a coordinated campaign with Hinode and the Atmospheric Imaging Assembly. Our IRIS observations allow us to follow the thermal evolution of type II spicules and finally confirm that the fading of Ca II H spicules appears to be caused by rapid heating to higher temperatures. The IRIS spicules do not fade but continue evolving, reaching higher and falling back down after 500-800 s. Ca II H type II spicules are thus the initial stages of violent and hotter events that mostly remain invisible in Ca II H filtergrams. These events have very different properties from type I spicules, which show lower velocities and no fading from chromospheric passbands. The IRIS spectra of spicules show the same signature as their proposed disk counterparts, reinforcing earlier work. Spectroheliograms from spectral rasters also confirm that quiet-Sun spicules originate in bushes from the magnetic network. Our results suggest that type II spicules are indeed the site of vigorous heating (to at least transition region temperatures) along extensive parts of the upward moving spicular plasma.

  7. Denver Museum of Nature and Science Goes Solar

    Broader source: Energy.gov [DOE]

    In this photograph, This PV array has 465 solar panels split between roofs on the southeast and southwest wings of the Denver Museum of Nature and Science. The installation was made possible...

  8. Solar energy education. Renewable energy activities for general science

    SciTech Connect (OSTI)

    Not Available

    1985-01-01

    Renewable energy topics are integrated with the study of general science. The literature is provided in the form of a teaching manual and includes such topics as passive solar homes, siting a home for solar energy, and wind power for the home. Other energy topics are explored through library research activities. (BCS)

  9. Diversity in Science and Technology Advances National Clean Energy in Solar

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

    | Department of Energy Photovoltaics » Diversity in Science and Technology Advances National Clean Energy in Solar Diversity in Science and Technology Advances National Clean Energy in Solar The SunShot Diversity in Science and Technology Advances National Clean Energy in Solar (DISTANCE-Solar) program pairs science and technology research advances with the development of a diverse and innovative workforce. Launched in Octoboer 2013, DISTANCE-Solar aims to drive solar innovation among

  10. Solar Energy Education. Renewable energy activities for earth science

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

    (Technical Report) | SciTech Connect earth science Citation Details In-Document Search Title: Solar Energy Education. Renewable energy activities for earth science × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. A paper copy of this document is

  11. The Science | Center for Bio-Inspired Solar Fuel Production

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

    Science The Science The need for a continuous energy supply and energy requirements for transportation necessitates technology for storage of energy from sunlight in fuel, as well as conversion to electricity. Cost-effective technologies for solar fuel production do not exist, prompting the need for new fundamental science. Fuel production requires not only energy, but also a source of electrons and precursor materials suitable for reduction to useful fuels. Given the immense magnitude of the

  12. AN INTERFACE REGION IMAGING SPECTROGRAPH FIRST VIEW ON SOLAR...

    Office of Scientific and Technical Information (OSTI)

    more energetic type II, spicules have become a heated topic but their contribution to the energy balance of the low solar atmosphere remains unknown. Here we give a first glimpse...

  13. High performance planar p-i-n perovskite solar cells with crown...

    Office of Scientific and Technical Information (OSTI)

    College of Chemistry, Chemical Engineering and Materials Science, Soochow ... INTERFACES; LAYERS; LITHIUM FLUORIDES; OPTIMIZATION; PEROVSKITE; SOLAR CELLS; SPIN-ON ...

  14. NREL: Solar Research - Materials and Chemical Science and Technology

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

    Materials and Chemical Science and Technology The Materials and Chemical Science & Technology (MCST) directorate's capabilities span fundamental and applied R&D for renewable energy and energy efficiency. Key program areas include solar energy conversion for electricity and fuels, materials discovery and development for renewable energy technologies, hydrogen production and storage, and fuel cells. The MCST directorate-led by Associate Laboratory Director William Tumas-includes the

  15. Science at the interface : grain boundaries in nanocrystalline metals.

    SciTech Connect (OSTI)

    Rodriguez, Mark Andrew; Follstaedt, David Martin; Knapp, James Arthur; Brewer, Luke N.; Holm, Elizabeth Ann; Foiles, Stephen Martin; Hattar, Khalid M.; Clark, Blythe B.; Olmsted, David L.; Medlin, Douglas L.

    2009-09-01

    Interfaces are a critical determinant of the full range of materials properties, especially at the nanoscale. Computational and experimental methods developed a comprehensive understanding of nanograin evolution based on a fundamental understanding of internal interfaces in nanocrystalline nickel. It has recently been shown that nanocrystals with a bi-modal grain-size distribution possess a unique combination of high-strength, ductility and wear-resistance. We performed a combined experimental and theoretical investigation of the structure and motion of internal interfaces in nanograined metal and the resulting grain evolution. The properties of grain boundaries are computed for an unprecedented range of boundaries. The presence of roughening transitions in grain boundaries is explored and related to dramatic changes in boundary mobility. Experimental observations show that abnormal grain growth in nanograined materials is unlike conventional scale material in both the level of defects and the formation of unfavored phases. Molecular dynamics simulations address the origins of some of these phenomena.

  16. Solar Energy Educational Material, Activities and Science Projects

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

    Solar Energy Educational Materials Solar with glasses "The sun has produced energy for billions of years. Solar energy is the solar radiation that reaches the earth. Solar energy ...

  17. Solar Energy Education. Renewable energy activities for junior high/middle school science

    SciTech Connect (OSTI)

    Not Available

    1985-01-01

    Some basic topics on the subject of solar energy are outlined in the form of a teaching manual. The manual is geared toward junior high or middle school science students. Topics include solar collectors, solar water heating, solar radiation, insulation, heat storage, and desalination. Instructions for the construction of apparatus to demonstrate the solar energy topics are provided. (BCS)

  18. Characterization of the Electronic and Chemical Structure at the Thin Film Solar Cell Interfaces: June 2005 -- June 2009

    SciTech Connect (OSTI)

    Heske, C.

    2009-09-01

    Study using photoelectron spectroscopy, inverse photoemission, and X-ray absorption and emission to derive the electronic structure of interfaces in CIGSS and CdTe thin-film solar cells.

  19. Solar energy education. Renewable energy activities for general science

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

    Department of Energy and Wind Easements & Rights Laws & Local Option Solar Rights Law Solar and Wind Easements & Rights Laws & Local Option Solar Rights Law < Back Eligibility Commercial Industrial Local Government Nonprofit Residential Schools State Government Federal Government Agricultural Institutional Savings Category Solar - Passive Solar Water Heat Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Photovoltaics Wind (All) Solar Pool Heating

  20. Deadline Monday for Minority Serving Institutions Solar Science Funding Opportunity Application

    Broader source: Energy.gov [DOE]

    The deadline to apply for the Diversity In Science and Technology Advances National Clean Energy in Solar  (DISTANCE-SOLAR) Funding Opportunity Announcement, is this Monday, March 25, 2013. The...

  1. ARM - Publications: Science Team Meeting Documents: Solar spectrum...

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

    Solar spectrum: Uncertainties between current models and implications for atmospheric ... Detailed knowledge of the solar spectrum is required for precise modeling of atmospheric ...

  2. Solar Smart Grid: 1663 Science and Technology Magazine | Los...

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

    that gets a significant amount of power from a large solar photovoltaic (PV) array. ... Solar irradiance and wind are fluctuating sources, and their power output can drop ...

  3. Getting More Electricity out of Solar Cells | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Getting More Electricity out of Solar Cells News News Home Featured Articles 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Science Headlines Science Highlights Presentations & Testimony News Archives Communications and Public Affairs Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 05.27.14 Getting More Electricity out of Solar Cells New MIT model can guide design of solar cells that

  4. Keep it Simple: Low-Cost Solar Power | U.S. DOE Office of Science (SC)

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

    Keep it Simple: Low-Cost Solar Power Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: Email Us More Information » 06.08.16 Keep it Simple: Low-Cost Solar Power A simplified

  5. DYNAMICS IN SUNSPOT UMBRA AS SEEN IN NEW SOLAR TELESCOPE AND INTERFACE REGION IMAGING SPECTROGRAPH DATA

    SciTech Connect (OSTI)

    Yurchyshyn, V.; Abramenko, V.; Kilcik, A.

    2015-01-10

    We analyze sunspot oscillations using Interface Region Imaging Spectrograph (IRIS) slit-jaw and spectral data and narrow-band chromospheric images from the New Solar Telescope (NST) for the main sunspot in NOAA AR 11836. We report that the difference between the shock arrival times as measured by the Mg II k 2796.35 Å and Si IV 1393.76 Å line formation levels changes during the observed period, and peak-to-peak delays may range from 40 s to zero. The intensity of chromospheric shocks also displays long-term (about 20 min) variations. NST's high spatial resolution Hα data allowed us to conclude that, in this sunspot, umbral flashes (UFs) appeared in the form of narrow bright lanes stretched along the light bridges and around clusters of umbral bright points. The time series also suggested that UFs preferred to appear on the sunspot-center side of light bridges, which may indicate the existence of a compact sub-photospheric driver of sunspot oscillations. The sunspot's umbra as seen in the IRIS chromospheric and transition region data appears bright above the locations of light bridges and the areas where the dark umbra is dotted with clusters of umbral dots. Co-spatial and co-temporal data from the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory showed that the same locations were associated with bright footpoints of coronal loops suggesting that the light bridges may play an important role in heating the coronal sunspot loops. Finally, the power spectra analysis showed that the intensity of chromospheric and transition region oscillations significantly vary across the umbra and with height, suggesting that umbral non-uniformities and the structure of sunspot magnetic fields may play a role in wave propagation and heating of umbral loops.

  6. Getting More Electricity out of Solar Cells | U.S. DOE Office of Science

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

    (SC) Getting More Electricity out of Solar Cells Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News EFRC Events DOE Announcements Publications History Contact BES Home 05.27.14 Getting More Electricity out of Solar Cells Print Text Size: A A A Subscribe FeedbackShare Page New MIT model can guide design of solar cells that produce less waste heat, more useful current. This work, featured in the Office of Science's Stories of

  7. Variation of carrier concentration and interface trap density in 8MeV electron irradiated c-Si solar cells

    SciTech Connect (OSTI)

    Bhat, Sathyanarayana Rao, Asha; Krishnan, Sheeja; Sanjeev, Ganesh; Suresh, E. P.

    2014-04-24

    The capacitance and conductance measurements were carried out for c-Si solar cells, irradiated with 8 MeV electrons with doses ranging from 5kGy 100kGy in order to investigate the anomalous degradation of the cells in the radiation harsh environments. Capacitance Voltage measurements indicate that there is a slight reduction in the carrier concentration upon electron irradiation due to the creation of radiation induced defects. The conductance measurement results reveal that the interface state densities and the trap time constant increases with electron dose due to displacement damages in c-Si solar cells.

  8. Science on the Hill: Turning windows into solar panels

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

    Harvesting that light with photovoltaic cells, which convert sunlight into electricity, at a cost-competitive price, however, has proved elusive. While the price of solar cells ...

  9. New Opportunities for Outer Solar System Science using Radioisotope...

    Office of Scientific and Technical Information (OSTI)

    Sponsoring Org: USDOE Country of Publication: United States Language: English Subject: 33 ... PROPULSION; RADIOISOTOPES; RANGE; SOLAR SYSTEM; SPACE; VEHICLES Astrophysics, Word Cloud ...

  10. Center for Advanced Solar Photophysics (CASP) | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Advanced Solar Photophysics (CASP) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Advanced Solar Photophysics (CASP) Print Text Size: A A A FeedbackShare Page CASP Header Director Victor Klimov Lead Institution Los Alamos National Laboratory Year Established 2009 Mission To exploit fundamental interactions between nanomaterials and light with the

  11. Center for Solar Fuels (UNC) | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Solar Fuels (UNC) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Solar Fuels (UNC) Print Text Size: A A A FeedbackShare Page UNC Header Director Thomas Meyer Lead Institution University of North Carolina Year Established 2009 Mission To conduct research on dye sensitized photoelectrosynthesis cells (DSPECs) for water splitting and tandem cells for the

  12. Science Highlights- Center for Solar and Thermal Energy Conversion

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

    2 - Abstracts and Highlight Slides Energy Level Modulation in Conjugated Polymers for Organic Photovoltaic Applications Aligning Carbon Nanotubes (CNTs) Using Ultrafast Laser Irradiation Disordered Interfaces Improve Organic Photovoltaics New Way of Reducing Thermal Conductivity in Thermoelectric Materials Phase-field Simulations of GaN/InGaN Quantum Dot Growth by Selective Area Epitaxy High Performance Thermoelectricity in Earth-Abundant Compounds Based on Natural Mineral Tetrahedrites Effect

  13. Solar Energy for Transportation Fuel (LBNL Science at the Theater)

    ScienceCinema (OSTI)

    Lewis, Nate

    2011-04-28

    Nate Lewis' talk looks at the challenge of capturing solar energy and storing it as an affordable transportation fuel - all on a scale necessary to reduce global warming. Overcoming this challenge will require developing new materials that can use abundant and inexpensive elements rather than costly and rare materials. He discusses the promise of new materials in the development of carbon-free alternatives to fossil fuel.

  14. CISSEM | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    CISSEM Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers CISSEM Print Text Size: A A A FeedbackShare Page Center for Interface Science: Solar Electric Materials (CIS:SEM) Director(s): Neal R. Armstrong Lead Institution: University of Arizona Years: 2009-2014 Mission: To advance the understanding of interface science underlying solar energy conversion technologies based on

  15. Structural and Optical Investigations of GaN-Si Interface for a Heterojunction Solar Cell

    SciTech Connect (OSTI)

    Williams, Joshua J.; Jeffries, April M.; Bertoni, Mariana I.; Williamson, Todd L.; Bowden, Stuart G.; Honsberg, Christiana B.

    2014-06-08

    In recent years the development of heterojunction silicon based solar cells has gained much attention, lea largely by the efforts of Panasonic’s HIT cell. The success of the HIT cell prompts the scientific exploration of other thin film layers, besides the industrially accepted amorphous silicon. In this paper we report upon the use of gallium nitride, grown by MBE at “low temperatures” (~200°C), on silicon wafers as one possible candidate for making a heterojunction solar cell; the first approximation of band alignments between GaN and Si; and the material quality as determined by X-ray diffraction.

  16. Amorphous/crystalline silicon interface passivation: Ambient-temperature dependence and implications for solar cell performance

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

    Seif, Johannes P.; Krishnamani, Gopal; Demaurex, Benedicte; Ballif, Christophe; Wolf, Stefaan De

    2015-03-02

    Silicon heterojunction (SHJ) solar cells feature amorphous silicon passivation films, which enable very high voltages. We report how such passivation increases with operating temperature for amorphous silicon stacks involving doped layers and decreases for intrinsic-layer-only passivation. We discuss the implications of this phenomenon on the solar cell's temperature coefficient, which represents an important figure-of-merit for the energy yield of devices deployed in the field. We show evidence that both open-circuit voltage (Voc) and fill factor (FF) are affected by these variations in passivation and quantify these temperature-mediated effects, compared with those expected from standard diode equations. We confirm that devicesmore » with high Voc values at 25°C show better high-temperature performance. Thus, we also argue that the precise device architecture, such as the presence of charge-transport barriers, may affect the temperature-dependent device performance as well.« less

  17. Amorphous/crystalline silicon interface passivation: Ambient-temperature dependence and implications for solar cell performance

    SciTech Connect (OSTI)

    Seif, Johannes P.; Krishnamani, Gopal; Demaurex, Benedicte; Ballif, Christophe; Wolf, Stefaan De

    2015-03-02

    Silicon heterojunction (SHJ) solar cells feature amorphous silicon passivation films, which enable very high voltages. We report how such passivation increases with operating temperature for amorphous silicon stacks involving doped layers and decreases for intrinsic-layer-only passivation. We discuss the implications of this phenomenon on the solar cell's temperature coefficient, which represents an important figure-of-merit for the energy yield of devices deployed in the field. We show evidence that both open-circuit voltage (Voc) and fill factor (FF) are affected by these variations in passivation and quantify these temperature-mediated effects, compared with those expected from standard diode equations. We confirm that devices with high Voc values at 25C show better high-temperature performance. Thus, we also argue that the precise device architecture, such as the presence of charge-transport barriers, may affect the temperature-dependent device performance as well.

  18. Amorphous/crystalline silicon interface passivation: Ambient-temperature dependence and implications for solar cell performance

    SciTech Connect (OSTI)

    Seif, Johannes P.; Krishnamani, Gopal; Demaurex, Benedicte; Ballif, Christophe; Wolf, Stefaan De

    2015-03-02

    Silicon heterojunction (SHJ) solar cells feature amorphous silicon passivation films, which enable very high voltages. We report how such passivation increases with operating temperature for amorphous silicon stacks involving doped layers and decreases for intrinsic-layer-only passivation. We discuss the implications of this phenomenon on the solar cell's temperature coefficient, which represents an important figure-of-merit for the energy yield of devices deployed in the field. We show evidence that both open-circuit voltage (Voc) and fill factor (FF) are affected by these variations in passivation and quantify these temperature-mediated effects, compared with those expected from standard diode equations. We confirm that devices with high Voc values at 25°C show better high-temperature performance. Thus, we also argue that the precise device architecture, such as the presence of charge-transport barriers, may affect the temperature-dependent device performance as well.

  19. New Opportunities for Outer Solar System Science using Radioisotope Electric Propulsion

    SciTech Connect (OSTI)

    Noble, Robert J.; Amini, Rashied; Beauchamp, Patricia M.; Bennett, Gary L.; Brophy, John R.; Buratti, Bonnie J.; Ervin, Joan; Fernandez, Yan R.; Grundy, Will; Khan, Mohammed Omair; King, David Q.; Lang, Jared; Meech, Karen J.; Newhouse, Alan; Oleson, Steven R.; Schmidt, George R.; Spilker, Thomas; West, John L.; /Caltech, JPL

    2010-05-26

    Today, our questions and hypotheses about the Solar System's origin have surpassed our ability to deliver scientific instruments to deep space. The moons of the outer planets, the Trojan and Centaur minor planets, the trans-Neptunian objects (TNO), and distant Kuiper Belt objects (KBO) hold a wealth of information about the primordial conditions that led to the formation of our Solar System. Robotic missions to these objects are needed to make the discoveries, but the lack of deep-space propulsion is impeding this science. Radioisotope electric propulsion (REP) will revolutionize the way we do deep-space planetary science with robotic vehicles, giving them unprecedented mobility. Radioisotope electric generators and lightweight ion thrusters are being developed today which will make possible REP systems with specific power in the range of 5 to 10 W/kg. Studies have shown that this specific power range is sufficient to perform fast rendezvous missions from Earth to the outer Solar System and fast sample return missions. This whitepaper discusses how mobility provided by REP opens up entirely new science opportunities for robotic missions to distant primitive bodies. We also give an overview of REP technology developments and the required next steps to realize REP.

  20. Solar | Department of Energy

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

    Science & Innovation Energy Sources Renewable Energy Solar Solar How much do you know about solar power? Take our quiz and test your solar energy IQ. | Photo courtesy of ...

  1. Basic research needs and opportunities on interfaces in solar materials: an executive summary

    SciTech Connect (OSTI)

    Gottschall, R.J.; Czanderna, A.W.

    1981-10-01

    The executive summary is taken verbatim from the published proceedings of a workshop sponsored by the Division of Materials Sciences of the U.S. Department of Energy, in Denver, Colorado, July 1980. The 248-page proceedings documents the consensus of the principal discussions and conclusions. The executive summary refers to details in specific chapters.

  2. PROJECT PROFILE: Interface Science and Engineering for Reliable, High Efficiency CdTe

    Broader source: Energy.gov [DOE]

    While crystalline silicon accounted for two thirds of the PV market in 2014, cadmium telluride (CdTe) photovoltaic (PV) modules are becoming increasingly competitive with continued improvements in efficiency and reduction in price. This project will contribute to enabling 24% efficient CdTe cells by improving surface and interface recombination in the devices. Surface and interface recombination, which is the loss of photo-generated carriers before they are collected, becomes more detrimental to CdTe device performance as carrier lifetime increases. This project will develop effective surface passivation for CdTe and carrier selective contacts for higher efficiency, improved reproducibility, and increased stability.

  3. Critical role of domain crystallinity, domain purity and domain interface sharpness for reduced bimolecular recombination in polymer solar cells

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

    Venkatesan, Swaminathan; Chen, Jihua; Ngo, Evan C.; Dubey, Ashish; Khatiwada, Devendra; Zhang, Cheng; Qiao, Qiquan

    2014-12-31

    In this study, inverted bulk heterojunction solar cells were fabricated using poly(3-hexylthiophene) (P3HT) blended with two different fullerene derivatives namely phenyl-C61-butyric acid methyl ester (PC60BM) and indene-C60 bis-adduct (IC60BA). The effects of annealing temperatures on the morphology, optical and structural properties were studied and correlated to differences in photovoltaic device performance. It was observed that annealing temperature significantly improved the performance of P3HT:IC60BA solar cells while P3HT:PC60BM cells showed relatively less improvement. The performance improvement is attributed to the extent of fullerene mixing with polymer domains. Energy filtered transmission electron microscopy (EFTEM) and x-ray diffraction (XRD) results showed that ICBAmore » mixes with disordered P3HT much more readily than PC60BM which leads to lower short circuit current density and fill factor for P3HT:IC60BA cells annealed below 120°C. Annealing above 120°C improves the crystallinity of P3HT in case of P3HT:IC60BA whereas in P3HT:PC60BM films, annealing above 80°C leads to negligible change in crystallinity. Crystallization of P3HT also leads to higher domain purity as seen EFTEM. Further it is seen that cells processed with additive nitrobenzene (NB) showed enhanced short circuit current density and power conversion efficiency regardless of the fullerene derivative used. Addition of NB led to nanoscale phase separation between purer polymer and fullerene domains. Kelvin probe force microscopy (KPFM) images showed that enhanced domain purity in additive casted films led to a sharper interface between polymer and fullerene. Lastly, enhanced domain purity and interfacial sharpness led to lower bimolecular recombination and higher mobility and charge carrier lifetime in NB modified devices.« less

  4. Computational Spectroscopy of Heterogeneous Interfaces | Argonne...

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

    N. Brawand, University of Chicago Computational Spectroscopy of Heterogeneous Interfaces ... Year: 2016 Research Domain: Materials Science The interfaces between solids, ...

  5. Critical role of domain crystallinity, domain purity and domain interface sharpness for reduced bimolecular recombination in polymer solar cells

    SciTech Connect (OSTI)

    Venkatesan, Swaminathan; Chen, Jihua; Ngo, Evan C.; Dubey, Ashish; Khatiwada, Devendra; Zhang, Cheng; Qiao, Qiquan

    2014-12-31

    In this study, inverted bulk heterojunction solar cells were fabricated using poly(3-hexylthiophene) (P3HT) blended with two different fullerene derivatives namely phenyl-C61-butyric acid methyl ester (PC60BM) and indene-C60 bis-adduct (IC60BA). The effects of annealing temperatures on the morphology, optical and structural properties were studied and correlated to differences in photovoltaic device performance. It was observed that annealing temperature significantly improved the performance of P3HT:IC60BA solar cells while P3HT:PC60BM cells showed relatively less improvement. The performance improvement is attributed to the extent of fullerene mixing with polymer domains. Energy filtered transmission electron microscopy (EFTEM) and x-ray diffraction (XRD) results showed that ICBA mixes with disordered P3HT much more readily than PC60BM which leads to lower short circuit current density and fill factor for P3HT:IC60BA cells annealed below 120°C. Annealing above 120°C improves the crystallinity of P3HT in case of P3HT:IC60BA whereas in P3HT:PC60BM films, annealing above 80°C leads to negligible change in crystallinity. Crystallization of P3HT also leads to higher domain purity as seen EFTEM. Further it is seen that cells processed with additive nitrobenzene (NB) showed enhanced short circuit current density and power conversion efficiency regardless of the fullerene derivative used. Addition of NB led to nanoscale phase separation between purer polymer and fullerene domains. Kelvin probe force microscopy (KPFM) images showed that enhanced domain purity in additive casted films led to a sharper interface between polymer and fullerene. Lastly, enhanced domain purity and interfacial sharpness led to lower bimolecular recombination and higher mobility and charge carrier lifetime in NB modified devices.

  6. Science Gateways

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

    About Science Gateways A science gateway is a web-based interface to access HPC computers ... perform shared computations, and generally interact with NERSC resources over the web. ...

  7. Science

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

    science Science Stockpile Stewardship National Security National Competitiveness Fusion and Ignition Energy for the Future How to Make a Star Discovery Science Photon Science HAPLS

  8. Basic Research Needs for Solar Energy Utilization. Report of the Basic Energy Sciences Workshop on Solar Energy Utilization, April 18-21, 2005

    SciTech Connect (OSTI)

    Lewis, N. S.; Crabtree, G.; Nozik, A. J.; Wasielewski, M. R.; Alivisatos, P.; Kung, H.; Tsao, J.; Chandler, E.; Walukiewicz, W.; Spitler, M.; Ellingson, R.; Overend, R.; Mazer, J.; Gress, M.; Horwitz, J.; Ashton, C.; Herndon, B.; Shapard, L.; Nault, R. M.

    2005-04-21

    World demand for energy is projected to more than double by 2050 and to more than triple by the end of the century. Incremental improvements in existing energy networks will not be adequate to supply this demand in a sustainable way. Finding sufficient supplies of clean energy for the future is one of society?s most daunting challenges. Sunlight provides by far the largest of all carbon-neutral energy sources. More energy from sunlight strikes the Earth in one hour (4.3 ? 1020 J) than all the energy consumed on the planet in a year (4.1 ? 1020 J). We currently exploit this solar resource through solar electricity ? a $7.5 billion industry growing at a rate of 35?40% per annum ? and solar-derived fuel from biomass, which provides the primary energy source for over a billion people. Yet, in 2001, solar electricity provided less than 0.1% of the world's electricity, and solar fuel from modern (sustainable) biomass provided less than 1.5% of the world's energy. The huge gap between our present use of solar energy and its enormous undeveloped potential defines a grand challenge in energy research. Sunlight is a compelling solution to our need for clean, abundant sources of energy in the future. It is readily available, secure from geopolitical tension, and poses no threat to our environment through pollution or to our climate through greenhouse gases. This report of the Basic Energy Sciences Workshop on Solar Energy Utilization identifies the key scientific challenges and research directions that will enable efficient and economic use of the solar resource to provide a significant fraction of global primary energy by the mid 21st century. The report reflects the collective output of the workshop attendees, which included 200 scientists representing academia, national laboratories, and industry in the United States and abroad, and the U.S. Department of Energy?s Office of Basic Energy Sciences and Office of Energy Efficiency and Renewable Energy.

  9. Solar

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

    Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas ...

  10. Solar

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

    Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water ...

  11. Solar

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

    Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & ...

  12. PROJECT PROFILE: Addressing Environmental Challenges to Deployment through the Development of an Avian-Solar Science Plan and a Prototype Avian Risk Assessment Tool (SuNLaMP)

    Broader source: Energy.gov [DOE]

    The soft costs associated with solar project development can increase with potential wildlife impacts. Avian impact issues associated with utility scale solar development, in particular avian fatalities, are not well understood. This project will address these issues to help reach SunShot soft cost target goals by better understanding avian issues at utility scale solar facilities and their soft cost implications using a systematic, standardized, science-based approach that could be applied across the industry.

  13. solar

    National Nuclear Security Administration (NNSA)

    2%2A en Solar power purchase for DOE laboratories http:nnsa.energy.govmediaroompressreleasessolarpower

  14. How to Bring Solar Energy to Seven Billion People (LBNL Science at the Theater)

    ScienceCinema (OSTI)

    Wadia, Cyrus

    2011-04-28

    By exploiting the powers of nanotechnology and taking advantage of non-toxic, Earth-abundant materials, Berkeley Lab's Cyrus Wadia has fabricated new solar cell devices that have the potential to be several orders of magnitude less expensive than conventional solar cells. And by mastering the chemistry of these materials-and the economics of solar energy-he envisions bringing electricity to the 1.2 billion people now living without it.

  15. How to Bring Solar Energy to Seven Billion People (LBNL Science at the Theater)

    SciTech Connect (OSTI)

    Wadia, Cyrus

    2009-04-06

    By exploiting the powers of nanotechnology and taking advantage of non-toxic, Earth-abundant materials, Berkeley Lab's Cyrus Wadia has fabricated new solar cell devices that have the potential to be several orders of magnitude less expensive than conventional solar cells. And by mastering the chemistry of these materials-and the economics of solar energy-he envisions bringing electricity to the 1.2 billion people now living without it.

  16. Photovoltaics and Solar Energy: Science Projects in Renewable Energy and Energy Efficiency

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

    Photovoltaics and Solar Energy (Two Activities) Grades: 5-8 Topic: Solar Authors: Derek Nalley and Scott Pinegar Owner: National Renewable Energy Laboratory This educational material is brought to you by the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. This lesson plan may contain links to other resources, including suggestions as to where to purchase materials. These links, product descriptions, and prices may change over time. Photovoltaics and Solar Energy

  17. At Solar System's Edge, There be...Bubbles? - NERSC Science News...

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

    are affected by material expelled from other stars in our corner of the Milky Way galaxy. Data sent from the Voyager spacecraft as they exit our solar system is informing new...

  18. Science

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

    Science Science Cutting edge, multidisciplinary national-security science. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets The thermal traits of a leaf, critical for photosynthesis, may be under strong evolutionary selection that occurs in response to environmental temperatures. Here a thermal leaf image details temperature variation, which greatly affects plant functions since temperature is closely linked to metabolic kinetics-the plant's

  19. Science

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

    Science Science & Technology Images of Lab scientists and researchers at work. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets PHOTOS BY TOPIC Careers Community Visitors Environment History Science The Lab Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. Astronomical simulation in the CAVE - 1 Astronomical simulation in the CAVE - 1 Scientist sees

  20. NREL Measures IMM Solar Cell Performance for CPV (Fact Sheet), NREL Highlights, Science

    SciTech Connect (OSTI)

    Not Available

    2011-09-01

    New measurement capability supports the development of high-efficiency solar cells for concentrating photovoltaic (CPV) application. NREL scientists recently completed a set of measurements on the performance of an inverted metamorphic multijunction (IMM) solar cell as a function of concentration and cell operating temperature. The triple-junction cell had subcell bandgaps of 1.81, 1.40, and 1.00. Much of the work focused on developing and validating the measurement techniques (i.e., the spectral response of the three subcells was measured at five temperatures, and those data were used to properly adjust the solar simulators at each temperature). Multijunction concentrator solar cells are typically evaluated under flash illumination at 25 C, but this condition significantly underestimates the thermal load on the cell in an actual real-world module, where the steady-state concentrated illumination can raise the operating temperature to as high as 100 C. The NREL-developed measurement technique addresses this issue. This work demonstrated that the IMM cell has better temperature coefficients than its traditional upright, germanium-based, lattice-matched counterpart and will thus perform better in actual CPV applications. This new measurement capability will support NREL's development of IMM cells that are optimally designed for operation at temperatures relevant to actual systems operation.

  1. Sandia National Labs: Physical, Chemical and Nano Sciences Center (PCNSC):

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

    Departments Sciences Semiconductor & Optical Sciences Energy Sciences Small Science Cluster Business Office News Partnering Research Departments Radiation, Nano Materials, & Interface Sciences Radiation and Solid Interactions Nanomaterials Sciences Surface and Interface Sciences Semiconductor & Optical Sciences Semiconductor Material and Device Sciences Advanced Materials Sciences Lasers, Optics, and Remote Sensing Energy Sciences CINT User Program CINT Science Small Science

  2. Science

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

    Office of Science Office of Science β β * * * Office of Science α γ Office of * * * * * Office of Science Office of Science * α * * Office of Science α * * μ * * α 287 115 10.59 32 ms 283 113 10.12 100 ms 279 111 10.38 0.17 s 271 107 9.35 1.2 s 267 105 SF 1.8 h 275 109 10.35 12 ms 289 115 10.31 520 ms 285 113 9.74/9.48 4.5 s 281 111 SF 1 s 287 115 10.59 32 ms 283 113 10.12 100 ms 279 111 10.38 0.17 s 07 5 s 275 109 10.35 12 ms 285 1 9.74/ 4.5 281 111 SF 1 s 288 115 10.48 171 ms 284 113

  3. science

    National Nuclear Security Administration (NNSA)

    through the Predictive Capability Framework (PCF). The PCF is a long-term integrated roadmap to guide the science, technology and engineering activities and Directed Stockpile...

  4. The Interface of Art and Science in the Museum: Disclosing a 4th Dimension of Art Preservation and Connoisseurship

    SciTech Connect (OSTI)

    Casadio, Franceska

    2004-11-03

    Drawing from her most recent experience at the Art Institute and past experiences in Italy, Dr. Casadio will discuss examples of applications of scientific analysis to the field of Cultural Heritage, including: 1) The use of instrumental analysis to address fundamental questions regarding artists' techniques, and as an aid to unraveling paint technology, as with the fascinating pre-Columbia pigment Maya Blue; 2) The investigation into deterioration of artifacts, the design of innovative conservation materials and the testing of their durability, expemplified with the case study of the conservation of the facade of the gothic Cathedral of Milan; 3) Development of fine-tuned conservation strategies for the cleaning of Michelangelo's David; 4) The study of the effect of environmental parameters on objects in exhibitions and storage to help design compatible display cases; 5) The role of scientific analysis in matters of authentication and dating. Future trends that increasingly see science as a tool for virtual restoration will be discussed.

  5. The Interface of Art and Science in the Museum: Disclosing a 4th Dimension of Art Preservation and Connoisseurship

    SciTech Connect (OSTI)

    Casadio, Franceska

    2009-11-03

    Drawing from her most recent experience at the Art Institute and past experiences in Italy, Dr. Casadio will discuss examples of applications of scientific analysis to the field of Cultural Heritage, including: 1) The use of instrumental analysis to address fundamental questions regarding artists' techniques, and as an aid to unraveling paint technology, as with the fascinating pre-Columbia pigment Maya Blue; 2) The investigation into deterioration of artifacts, the design of innovative conservation materials and the testing of their durability, expemplified with the case study of the conservation of the facade of the gothic Cathedral of Milan; 3) Development of fine-tuned conservation strategies for the cleaning of Michelangelo's David; 4) The study of the effect of environmental parameters on objects in exhibitions and storage to help design compatible display cases; 5) The role of scientific analysis in matters of authentication and dating. Future trends that increasingly see science as a tool for virtual restoration will be discussed.

  6. The Interface of Art and Science in the Museum: Disclosing a 4th Dimension of Art Preservation and Connoisseurship

    ScienceCinema (OSTI)

    Casadio, Franceska [Art Institute of Chicago, Chicago, Illinois, United States

    2010-01-08

    Drawing from her most recent experience at the Art Institute and past experiences in Italy, Dr. Casadio will discuss examples of applications of scientific analysis to the field of Cultural Heritage, including: 1) The use of instrumental analysis to address fundamental questions regarding artists' techniques, and as an aid to unraveling paint technology, as with the fascinating pre-Columbia pigment Maya Blue; 2) The investigation into deterioration of artifacts, the design of innovative conservation materials and the testing of their durability, expemplified with the case study of the conservation of the facade of the gothic Cathedral of Milan; 3) Development of fine-tuned conservation strategies for the cleaning of Michelangelo's David; 4) The study of the effect of environmental parameters on objects in exhibitions and storage to help design compatible display cases; 5) The role of scientific analysis in matters of authentication and dating. Future trends that increasingly see science as a tool for virtual restoration will be discussed.

  7. Exploring changes in solar model physics to mitigate the solar...

    Office of Scientific and Technical Information (OSTI)

    Exploring changes in solar model physics to mitigate the solar abundance problem Citation ... Visit OSTI to utilize additional information resources in energy science and technology. A ...

  8. Early solar mass loss, opacity uncertainties, and the solar abundance...

    Office of Scientific and Technical Information (OSTI)

    Early solar mass loss, opacity uncertainties, and the solar abundance problem Citation ... Visit OSTI to utilize additional information resources in energy science and technology. A ...

  9. SOLERAS - Solar Controlled Environment Agriculture Project. Final report, Volume 5. Science Applications, Incorporated system requirements definition

    SciTech Connect (OSTI)

    Not Available

    1985-01-01

    This report sets forth the system requirements for a Solar Controlled-Environment Agriculture System (SCEAS) Project. In the report a conceptual baseline system description for an engineering test facility is given. This baseline system employs a fluid roof/roof filter in combination with a large storage tank and a ground water heat exchanger in order to provide cooling and heating as needed. Desalination is accomplished by pretreatment followed by reverse osmosis. Energy is provided by means of photovoltaics and wind machines in conjunction with storage batteries. Site and climatic data needed in the design process are given. System performance specifications and integrated system design criteria are set forth. Detailed subsystem design criteria are presented and appropriate references documented.

  10. Bisfuel links - Solar energy news

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

    Solar energy news http:asulightworks.com" target"blank">ASU Lightworks http:www.sciencedaily.comnewsmatterenergysolarenergy" target"blank">ScienceDaily: Solar Energy ...

  11. Electron Transfer Dynamics in Efficient Molecular Solar Cells

    SciTech Connect (OSTI)

    Meyer, Gerald John

    2014-10-01

    This research provided new mechanistic insights into surface mediated photochemical processes relevant to solar energy conversion. In this past three years our research has focused on oxidation photo-redox chemistry and on the role surface electric fields play on basic spectroscopic properties of molecular-semiconductor interfaces. Although this research as purely fundamental science, the results and their interpretation have relevance to applications in dye sensitized and photogalvanic solar cells as well as in the storage of solar energy in the form of chemical bonds.

  12. Science

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

    Biological and Environmental Research U.S. Department of energy atmospheric radiation measurement program ARM ARM The Importance of Radiation and Clouds for Climate Change The Earth's surface temperature is determined by the balance between incoming solar radiation and thermal (or infrared) radiation emitted by the Earth back to space. Changes in atmospheric composition, including greenhouse gases, clouds, and aerosols, can alter this balance and produce signifcant climate change. Global climate

  13. Modifying the organic/electrode interface in Organic Solar Cells (OSCs) and improving the efficiency of solution-processed phosphorescent Organic Light-Emitting Diodes (OLEDs)

    SciTech Connect (OSTI)

    Xiao, Teng

    2012-04-27

    Organic semiconductors devices, such as, organic solar cells (OSCs), organic light-emitting diodes (OLEDs) and organic field-effect transistors (OFETs) have drawn increasing interest in recent decades. As organic materials are flexible, light weight, and potentially low-cost, organic semiconductor devices are considered to be an alternative to their inorganic counterparts. This dissertation will focus mainly on OSCs and OLEDs. As a clean and renewable energy source, the development of OSCs is very promising. Cells with 9.2% power conversion efficiency (PCE) were reported this year, compared to < 8% two years ago. OSCs belong to the so-called third generation solar cells and are still under development. While OLEDs are a more mature and better studied field, with commercial products already launched in the market, there are still several key issues: (1) the cost of OSCs/OLEDs is still high, largely due to the costly manufacturing processes; (2) the efficiency of OSCs/OLEDs needs to be improved; (3) the lifetime of OSCs/OLEDs is not sufficient compared to their inorganic counterparts; (4) the physics models of the behavior of the devices are not satisfactory. All these limitations invoke the demand for new organic materials, improved device architectures, low-cost fabrication methods, and better understanding of device physics. For OSCs, we attempted to improve the PCE by modifying the interlayer between active layer/metal. We found that ethylene glycol (EG) treated poly(3,4-ethylenedioxythiophene): polystyrenesulfonate (PEDOT: PSS) improves hole collection at the metal/polymer interface, furthermore it also affects the growth of the poly(3- hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) blends, making the phase segregation more favorable for charge collection. We then studied organic/inorganic tandem cells. We also investigated the effect of a thin LiF layer on the hole-collection of copper phthalocyanine (CuPc)/C70-based small molecular OSCs. A

  14. Science

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

    Wikipedia to forecast diseases November 13, 2014 Los Alamos research published in Public Library of Science LOS ALAMOS, N.M., Nov. 13, 2014-Scientists can now monitor and forecast diseases around the globe more effectively by analyzing views of Wikipedia articles, according to a team from Los Alamos National Laboratory. "A global disease-forecasting system will improve the way we respond to epidemics," scientist Sara Del Valle said. "In the same way we check the weather each

  15. Basic Research Needs for Solar Energy Utulization | Department...

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

    Needs for Solar Energy Utulization Basic Research Needs for Solar Energy Utulization Report of the basic energy sciences workshop on solar utulization. April 18-21, 2005. ...

  16. Impact of solid-phase crystallization of amorphous silicon on the chemical structure of the buried Si/ZnO thin film solar cell interface

    SciTech Connect (OSTI)

    Bar, M.; Wimmer, M.; Wilks, R. G.; Roczen, M.; Gerlach, D.; Ruske, F.; Lips, K.; Rech, B.; Weinhardt, L.; Blum, M.; Pookpanratana, S.; Krause, S.; Zhang, Y.; Heske, C.; Yang, W.; Denlinger, J. D.

    2010-04-30

    The chemical interface structure between phosphorus-doped hydrogenated amorphous silicon and aluminum-doped zinc oxide thin films is investigated with soft x-ray emission spectroscopy (XES) before and after solid-phase crystallization (SPC) at 600C. In addition to the expected SPC-induced phase transition from amorphous to polycrystalline silicon, our XES data indicates a pronounced chemical interaction at the buried Si/ZnO interface. In particular, we find an SPC-enhanced formation of Si-O bonds and the accumulation of Zn in close proximity to the interface. For an assumed closed and homogeneous SiO2 interlayer, an effective thickness of (5+2)nm after SPC could be estimated.

  17. Revitalizing American Competitiveness in Solar Technologies

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

    with controlled GBs - Surface science - Interface control Probe- materials & electro-optics - Point defects - s, SFs, GBs, etc. - Interfaces - Bandgap and defect energies...

  18. The silicon/zinc oxide interface in amorphous silicon-based thin-film solar cells: Understanding an empirically optimized contact

    SciTech Connect (OSTI)

    Gerlach, D.; Wilks, R. G.; Wimmer, M.; Felix, R.; Gorgoi, M.; Lips, K.; Rech, B.; Wippler, D.; Mueck, A.; Meier, M.; Huepkes, J.; Lozac'h, M.; Ueda, S.; Sumiya, M.; Yoshikawa, H.; Kobayashi, K.; Baer, M.

    2013-07-08

    The electronic structure of the interface between the boron-doped oxygenated amorphous silicon 'window layer' (a-SiO{sub x}:H(B)) and aluminum-doped zinc oxide (ZnO:Al) was investigated using hard x-ray photoelectron spectroscopy and compared to that of the boron-doped microcrystalline silicon ({mu}c-Si:H(B))/ZnO:Al interface. The corresponding valence band offsets have been determined to be (-2.87 {+-} 0.27) eV and (-3.37 {+-} 0.27) eV, respectively. A lower tunnel junction barrier height at the {mu}c-Si:H(B)/ZnO:Al interface compared to that at the a-SiO{sub x}:H(B)/ZnO:Al interface is found and linked to the higher device performances in cells where a {mu}c-Si:H(B) buffer between the a-Si:H p-i-n absorber stack and the ZnO:Al contact is employed.

  19. Ab Initio Simulation of Charge Transfer at the Semiconductor Quantum Dot/TiO 2 Interface in Quantum Dot-Sensitized Solar Cells

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

    Xin, Xukai; Li, Bo; Jung, Jaehan; Yoon, Young Jun; Biswas, Rana; Lin, Zhiqun

    2014-07-24

    Quantum dot-sensitized solar cells (QDSSCs) have emerged as a promising solar architecture for next-generation solar cells. The QDSSCs exhibit a remarkably fast electron transfer from the quantum dot (QD) donor to the TiO2 acceptor with size quantization properties of QDs that allows for the modulation of band energies to control photoresponse and photoconversion efficiency of solar cells. In order to understand the mechanisms that underpin this rapid charge transfer, the electronic properties of CdSe and PbSe QDs with different sizes on the TiO2 substrate are simulated using a rigorous ab initio density functional method. Our method capitalizes on localized orbitalmore » basis set, which is computationally less intensive. Quite intriguingly, a remarkable set of electron bridging states between QDs and TiO2 occurring via the strong bonding between the conduction bands of QDs and TiO2 is revealed. Such bridging states account for the fast adiabatic charge transfer from the QD donor to the TiO2 acceptor, and may be a general feature for strongly coupled donor/acceptor systems. All the QDs/TiO2 systems exhibit type II band alignments, with conduction band offsets that increase with the decrease in QD size. This facilitates the charge transfer from QDs donors to TiO2 acceptors and explains the dependence of the increased charge transfer rate with the decreased QD size.« less

  20. Interface design principles for high-performance organic semiconductor...

    Office of Scientific and Technical Information (OSTI)

    Organic solar cells (OSCs) are a promising cost-effective candidate in next generation ... transfer state at the interface, which greatly limits the power conversion efficiency. ...

  1. Ab Initio Simulation of Charge Transfer at the Semiconductor Quantum Dot/TiO 2 Interface in Quantum Dot-Sensitized Solar Cells

    SciTech Connect (OSTI)

    Xin, Xukai; Li, Bo; Jung, Jaehan; Yoon, Young Jun; Biswas, Rana; Lin, Zhiqun

    2014-07-24

    Quantum dot-sensitized solar cells (QDSSCs) have emerged as a promising solar architecture for next-generation solar cells. The QDSSCs exhibit a remarkably fast electron transfer from the quantum dot (QD) donor to the TiO2 acceptor with size quantization properties of QDs that allows for the modulation of band energies to control photoresponse and photoconversion efficiency of solar cells. In order to understand the mechanisms that underpin this rapid charge transfer, the electronic properties of CdSe and PbSe QDs with different sizes on the TiO2 substrate are simulated using a rigorous ab initio density functional method. Our method capitalizes on localized orbital basis set, which is computationally less intensive. Quite intriguingly, a remarkable set of electron bridging states between QDs and TiO2 occurring via the strong bonding between the conduction bands of QDs and TiO2 is revealed. Such bridging states account for the fast adiabatic charge transfer from the QD donor to the TiO2 acceptor, and may be a general feature for strongly coupled donor/acceptor systems. All the QDs/TiO2 systems exhibit type II band alignments, with conduction band offsets that increase with the decrease in QD size. This facilitates the charge transfer from QDs donors to TiO2 acceptors and explains the dependence of the increased charge transfer rate with the decreased QD size.

  2. Huffington Post Science

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

    Science Huffington Post Science Read about what other news sources are saying about Los Alamos science achievements. Making solar power more affordable Making solar power more affordable Although the goal of cheap, plentiful energy from the sun turns out to be a work in progress, not a settled achievement, recent research breakthroughs are helping to deliver on the promise of truly "cheap solar," with several surprising side benefits. - 8/30/16 Human-gorilla divergence may have

  3. Huffington Post Science - 2016

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

    Science » 2016 Huffington Post Science - 2016 Read about what other news sources are saying about Los Alamos science achievements. Making solar power more affordable Making solar power more affordable Although the goal of cheap, plentiful energy from the sun turns out to be a work in progress, not a settled achievement, recent research breakthroughs are helping to deliver on the promise of truly "cheap solar," with several surprising side benefits. - 8/30/16 Human-gorilla divergence

  4. Office of Science

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

    Office of Science Office of Science Enabling remarkable discoveries and tools that transform our understanding of energy and matter and advance national, economic, and energy security. Advanced Scientific Computing Research» Basic Energy Sciences» Biological and Environmental Research» Fusion Energy Sciences» High Energy Physics» Nuclear Physics» Turning Windows into Solar Panels Turning Windows into Solar Panels READ MORE Scientists study glaciers in McMurdo Dry Valleys in Antarctica

  5. Modeling of capacitance transients of thin-film solar cells: A valuable tool to gain information on perturbing layers or interfaces

    SciTech Connect (OSTI)

    Lauwaert, Johan Van Puyvelde, Lisanne; Vrielinck, Henk; Lauwaert, Jeroen; Thybaut, Joris W.

    2014-02-03

    Thin-film electronic and photovoltaic devices often comprise, in addition to the anticipated p-n junctions, additional non-ideal ohmic contacts between layers. This may give rise to additional signals in capacitance spectroscopy techniques that are not directly related to defects in the structure. In this paper, we present a fitting algorithm for transient signals arising from such an additional junction. The fitting results are in excellent agreement with the diode characteristics extracted from static measurements on individual components. Finally, the algorithm is applied for determining the barriers associated with anomalous signals reported for selected CuIn{sub 1x}Ga{sub x}Se{sub 2} and CdTe solar cells.

  6. Integrated Layout and Optimization Tool for Solar Power Towers |

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

    Concentrating Solar Power | NREL Integrated Layout and Optimization Tool for Solar Power Towers The Solar Power Tower Integrated Layout and Optimization Tool (SolarPILOT(tm)) generates and characterizes power tower (central receiver) systems. This software was developed by the National Renewable Energy Laboratory (NREL). SolarPILOT consists of a graphical user interface (GUI) and an application programming interface (API) through which external programs can access SolarPILOT's functionality.

  7. Molecular Science

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

    Molecular Science NETL's Molecular Science competency provides technology-enabling computational and experimental insight into the atomic-level processes occurring in condensed matter and gas phase systems or at the heterogeneous surface-gas interfaces used for energy applications. Research includes molecular optimization as well as both classical and high-throughput material design, specifically: Molecular Optimization Development and application of new computational approaches in the general

  8. A way for studying the impact of PEDOT:PSS interface layer on carrier transport in PCDTBT:PC{sub 71}BM bulk hetero junction solar cells by electric field induced optical second harmonic generation measurement

    SciTech Connect (OSTI)

    Ahmad, Zubair Abdullah, Shahino Mah; Sulaiman, Khaulah; Taguchi, Dai; Iwamoto, Mitsumasa

    2015-04-28

    Electric-field-induced optical second-harmonic generation (EFISHG) measurement was employed to study the impact of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT:PSS) interface layer on the carrier transport mechanism of the PCDTBT:PC{sub 71}BM bulk heterojunction (BHJ) organic solar cells (OSCs). We revealed that the electric fields in the PCDTBT and PC{sub 71}BM were allowed to be measured individually by choosing fundamental laser wavelengths of 1000 nm and 1060 nm, respectively, in dark and under illumination. The results showed that the direction of the internal electric fields in the PCDTBT:PC{sub 71}BM BHJ layer is reversed by introducing the PEDOT:PSS layer, and this results in longer electron transport time in the BHJ layer. We conclude that TR-EFISHG can be used as a novel way for studying the impact of interfacial layer on the transport of electrons and holes in the bulk-heterojunction OSCs.

  9. Electrode-Immune System Interface Monitor through Neural Stimulation...

    Office of Scientific and Technical Information (OSTI)

    Electrode-Immune System Interface Monitor through Neural Stimulation in American Cockroach ... of Science (DOE SC) Country of Publication: United States Language: English Subject: CHEM

  10. Nanocrystal Solar Cells Squeeze Extra Juice Out of Sunlight ...

    Office of Science (SC) Website

    Nanocrystal Solar Cells Squeeze Extra Juice Out of Sunlight Basic Energy Sciences (BES) ... More Information 12.01.11 Nanocrystal Solar Cells Squeeze Extra Juice Out of Sunlight ...

  11. Solar | Department of Energy

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

    The Department of Energy's SunShot Initiative funds cutting-edge science that helps dramatically reduce the cost of solar energy. Drawn from diverse inspiration in the optical and ...

  12. Solar Circuitry

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

    Solar Circuitry" with the Solar Powered Energy Kit Curriculum: Solar Power- (lightelectromagnetic radiation, electricity, circuitry, efficiency, energy transformation, subatomic ...

  13. SOLERAS - Solar Controlled Environment Agriculture Project. Final report, Volume 9. Science Applications, Incorporated Phase 2 - definition study

    SciTech Connect (OSTI)

    Not Available

    1985-01-01

    This report describes the effort required to implement the design of the Solar Controlled Environment Agriculture Engineering Test Facility, SCEA-ETF. This report is a basic blueprint for the Phase 2 activities which have as a goal the construction of the ETF. These activities have been broken down into five major tasks, namely Project Management; Engineering and Design; Procurement/Fabrication; Construction, Installation and Checkout; and Operation and Maintenance. The type of activities required under each of these tasks are described followed by a detailed work breakdown structure. The Phase 2 project organization is discussed. A 13 month schedule for the total project is also given. Lastly, two appendices discuss cost adjustment factors for an ETF located in the KSA, and an update of the commercial system cost estimate based on preliminary cost quotations for the ETF. The results show a 63% cost increase for the KSA ETF primarily due to higher construction costs and greater well depth. The commercial system cost required an adjustment upwards of 7.7%.

  14. Solar collection

    SciTech Connect (OSTI)

    Cole, S.L.

    1984-08-01

    This report contains summaries and pictures of projects funded by the Appropriate Technology Small Grants Program which include the following solar technologies: solar dish; photovoltaics; passive solar building and solar hot water system; Trombe wall; hot air panel; hybrid solar heating system; solar grain dryer; solar greenhouse; solar hot water workshops; and solar workshops.

  15. Community Shared Solar with Solarize | Department of Energy

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

    Community Shared Solar with Solarize Community Shared Solar with Solarize

  16. DOE Science Showcase - Wind Power

    Office of Scientific and Technical Information (OSTI)

    Profiling General Compression: A River of Wind, ScienceCinema, multimedia Solar and Wind Energy Resource Assessment (SWERA) Data from the National Renewable Energy Library and ...

  17. Biological Sciences

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

    Science Energy Science Engineering Science Environmental Science Fusion Science Math & Computer Science Nuclear Science Share Your Research NERSC Citations Home Science at...

  18. Intermixing at the absorber-buffer layer interface in thin-film...

    Office of Scientific and Technical Information (OSTI)

    ... DOPED MATERIALS; IMPURITIES; INTERFACES; LAYERS; PASSIVATION; PHOTOVOLTAIC EFFECT; RECOMBINATION; SOLAR CELLS; THIN FILMS; TRAPS; ZINC SULFIDES Word Cloud More Like This Full ...

  19. Solar Energy Education. Renewable energy activities for earth...

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

    earth science Citation Details In-Document Search Title: Solar Energy Education. Renewable energy activities for earth science You are accessing a document from the Department ...

  20. Solar Energy Education. Renewable energy activities for junior...

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

    junior highmiddle school science Citation Details In-Document Search Title: Solar Energy Education. Renewable energy activities for junior highmiddle school science You are ...

  1. Solar energy education. Renewable energy activities for general...

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

    Renewable energy activities for general science Citation Details In-Document Search Title: Solar energy education. Renewable energy activities for general science You are ...

  2. A Solar Fuel Proto - JCAP

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

    Videos JCAP-SOFI Presentation Benchmarkin A Solar Fuel Proto Heterogeneous Catalysis and Surface Science Scientists Research Introduction Why Solar Fuels? Goals & Objectives Thrusts Thrust 1 Thrust 2 Thrust 3 Thrust 4 Library Publications Research Highlights Videos Resources User Facilities Expert Team Benchmarking Database Device Simulation Tool XPS Spectral Database a solar-fuel prototype in operation A fully integrated photoelectrochemical device performing unassisted solar water

  3. Solar Blog | Department of Energy

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

    Solar Blog Solar Blog RSS The SunShot Initiative's Solar Blog features the latest stories about the work of the solar energy technologies office within the Department of Energy. Learn more about us. August 4, 2016 Giant Leap Technologies uses microfluidics to bend light toward a solar at the top of the plant. Each solar thermal power plant shown is a football field in size. | <em>Photo courtesy of Giant Leap Technologies</em> Cutting-Edge Science Drives SunShot Projects The

  4. Solar Radiometric Data Quality Assessment of SIRS, SKYRAD and...

    Office of Scientific and Technical Information (OSTI)

    Sponsoring Org: USDOE Office of Science Country of Publication: United States Language: ... DIFFUSE HORIZONTAL IRRADIANCE; DIRECT NORMAL IRRADIANCE; Solar Energy - ...

  5. Fire Science

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

    Science - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy

  6. Discovery Science

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

    universe Discovery Science Since the beginning of civilization, humans have marveled at the night sky and pondered the vast stretches of the universe. The invention of telescopes in the 17th century revealed the first details of the Moon and the planets in our solar system. Four hundred years later, space-based observatories such as NASA's Hubble and Kepler regularly capture amazing vistas of billions of galaxies millions of light years away. Despite these advances, astronomers have only been

  7. Better Internal Optics Can Improve III-V Solar Cell Performance (Fact Sheet), Highlights in Science, NREL (National Renewable Energy Laboratory)

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

    model that calculates external luminescent efficiency has potential to enhance performance of solar cells dominated by radiative recombination. Researchers at the National Renewable Energy Laboratory (NREL) wanted to improve the internal optics of solar cells domi- nated by radiative recombination to significantly enhance cell per- formance. Considering real, non- idealized solar cells, the scientists developed a detailed model that calculates the external luminescent efficiency. It does so

  8. Web Service Interface (API)

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

    How It Works Who's Using OSCARS? OSCARS and Future Tech OSCARS Standard and Open Grid Forum OSCARS Developers Community Web Browser Interface (WBUI) Web Service Interface (API) ...

  9. Web Browser Interface (WBUI)

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

    How It Works Who's Using OSCARS? OSCARS and Future Tech OSCARS Standard and Open Grid Forum OSCARS Developers Community Web Browser Interface (WBUI) Web Service Interface (API) ...

  10. Science on the Hill

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

    Hill Science on the Hill Recent Los Alamos research and achievements featured in the Santa Fe New Mexican News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets Hot-cast perovskite solar cells show promise for creating more efficient and affordable solar panels, LEDs, and lasers. Image courtesy Los Alamos National Laboratory. Something new under the sun Recent research breakthroughs at Los Alamos National Laboratory are helping to deliver on the

  11. Solar Newsletter

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

    Sandia Labs Contributes to Solar Industry Innovation: A Partnership Story Customers & Partners, News, Partnership, Photovoltaic, Renewable Energy, Solar, Solar Newsletter Sandia ...

  12. Structure of All-Polymer Solar Cells Impedes Efficiency

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

    Structure of All-Polymer Solar Cells Impedes Efficiency Print Organic solar cells are made of thin ... networks with sharp interfaces in order to produce high-efficiency devices. ...

  13. Structure of All-Polymer Solar Cells Impedes Efficiency

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

    Structure of All-Polymer Solar Cells Impedes Efficiency Structure of All-Polymer Solar Cells Impedes ... networks with sharp interfaces in order to produce high-efficiency devices. ...

  14. OLADE-Solar Thermal World Portal | Open Energy Information

    Open Energy Info (EERE)

    - Solar Hot Water User Interface: Website Website: www.solarthermalworld.org Cost: Free UN Region: Caribbean, South America Language: "English, Spanish; Castilian" is not in...

  15. UNC EFRC | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    "Solar Fuels: Science Engineering and Policy" symposium, January 11-12, 2012 Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events ...

  16. Jiangxi Gemei Science and Technology Inc | Open Energy Information

    Open Energy Info (EERE)

    Gemei Science and Technology Inc Jump to: navigation, search Name: Jiangxi Gemei Science and Technology Inc Place: Fuzhou, Jiangxi Province, China Sector: Solar Product: Jiangxi...

  17. Zhejiang Cineng PV Science Technology Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Cineng PV Science Technology Co Ltd Jump to: navigation, search Name: Zhejiang Cineng PV Science & Technology Co Ltd Place: Cixi, Zhejiang Province, China Sector: Solar Product: A...

  18. King Abdulaziz City for Science and Technology | Open Energy...

    Open Energy Info (EERE)

    Abdulaziz City for Science and Technology Jump to: navigation, search Name: King Abdulaziz City for Science and Technology Place: Riyadh, Saudi Arabia Zip: 11442 Sector: Solar...

  19. Interface Science of Thermal Barrier Coatings

    SciTech Connect (OSTI)

    Besmann, Theodore M

    2009-01-01

    The drive for greater efficiency in propulsion and industrial/power production machinery has pushed metallurgy to develop ever better alloys and taken existing metallic components to their reliability threshold. Nowhere is that better illustrated than in turbine engine materials. The nickel-based superalloys currently in use for the most demanding areas of the engines melt at 1230-1315 aC and yet see combustion environments >1600 aC. The result is that these components require thermal protection to avoid failure from phenomena such as melting, creep, oxidation, thermal fatigue, and so on [1]. The stakes are high as the equipment must remain reliable for thousands of take-offs and landings for aircraft turbine engines, and up to 40,000 hours of operation in power generating land-based gas turbines [2, 3]. One of the most critical items that see both the greatest temperatures and experience the highest stresses is the hot-section turbine blades. Two strategies have been adopted to help the superalloy turbine blades survive the demanding environment: Active air cooling and ceramic thermal protection coatings, which together can reduce metal surface temperatures by >300 aC.[2]. The combination of turbine blade external film cooling and internal air cooling requires an exceptionally complex structure with flow passages and sets of small holes in the blades where air bled from a matching stage of the compressor is directed over the surface. Stecura [4] was among the first to describe a successful coating system, and today s the ceramic insulating layer alone is credited with reducing metal temperatures as much as 165 aC [1, 5].

  20. "Fundamental Challenges in Solar Energy Conversion" workshop...

    Office of Science (SC) Website

    Fundamental Challenges in Solar Energy Conversion" workshop hosted by LMI-EFRC Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events ...

  1. "Approaches to Ultrahigh Efficiency Solar Energy Conversion"...

    Office of Science (SC) Website

    "Approaches to Ultrahigh Efficiency Solar Energy Conversion" Webinar Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News ...

  2. Proceedings: Graphics interface '86/Vision interface '86

    SciTech Connect (OSTI)

    Not Available

    1986-01-01

    This book contains papers presented at the Graphics interface conference. The Graphics interface conference is a major forum for the presentation of research in computer graphics and human-computer interaction. Sponsored by the Canadian Man-Computer Communications Society, the conferene draws an international audience with papers presented from France, Great Britain, the United States and Canada. The 1986 meeting was held jointly with Vision Interface '86, sponsored by the Canadian Image Processing and Pattern Recognition Society.

  3. Concentrating Solar Power Basics | Department of Energy

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

    Solar » Concentrating Solar Power Basics Concentrating Solar Power Basics August 20, 2013 - 4:38pm Addthis Text Version This solar concentrator has a fixed-focus faceted dish with a concentration of about 250 suns. This system can be used for large fields connected to the utility grid, hydrogen generation, or water pumping. Credit: Science Applications International Corporation / PIX 13464 Concentrating solar power (CSP) technologies use mirrors to reflect and concentrate sunlight onto a single

  4. Science and Technology Highlights | NREL

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

    Science and Technology Highlights NREL researchers' accomplishments in fundamental energy science contribute to a clean energy future for the nation. Take a look at recent technical highlights and learn about the key results and impacts in NREL's energy science research involving: Solar January 2016 NREL, CSEM Jointly Set New Efficiency Record with Dual-Junction Solar Cell Scientists set a new world record for converting non-concentrated sunlight into electricity using a dual-junction III-V/Si

  5. Science on the Hill - 2016

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

    Science on the Hill - 2016 Read in detail about specific Los Alamos science achievements, and the honors our scientists are accruing. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets Hot-cast perovskite solar cells show promise for creating more efficient and affordable solar panels, LEDs, and lasers. Image courtesy Los Alamos National Laboratory. Something new under the sun Recent research breakthroughs at Los Alamos National Laboratory are

  6. ScienceGatewaysNUG-20091007.ppt

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

    2009 2 Science Gateways at NERSC * Web access methods to NERSC resources - Much is possible beyond yesterday's "ssh+pbs" computing - Today web interfaces expected for everything - ...

  7. Biomolecular Science (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01

    A brief fact sheet about NREL Photobiology and Biomolecular Science. The research goal of NREL's Biomolecular Science is to enable cost-competitive advanced lignocellulosic biofuels production by understanding the science critical for overcoming biomass recalcitrance and developing new product and product intermediate pathways. NREL's Photobiology focuses on understanding the capture of solar energy in photosynthetic systems and its use in converting carbon dioxide and water directly into hydrogen and advanced biofuels.

  8. Problem Turned Into Performance for Solar Cells | U.S. DOE Office...

    Office of Science (SC) Website

    Problem Turned Into Performance for Solar Cells Basic Energy Sciences (BES) BES Home About ... Problem Turned Into Performance for Solar Cells Boundaries between crystalline grains - ...

  9. High Efficiency CdTe and CIGS Thin Film Solar Cells: Highlights...

    Office of Scientific and Technical Information (OSTI)

    Sponsoring Org: USDOE Country of Publication: United States Language: English Subject: 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; EFFICIENCY; ENERGY CONVERSION; SOLAR CELLS; THIN FILMS ...

  10. ARM - Publications: Science Team Meeting Documents

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

    Proceedings of the Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ... Calibrations* Anderberg, M.H.L. Solar Radiation Data Quality: A Comparison of Gompertz ...

  11. ARM - Publications: Science Team Meeting Documents

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

    Proceedings of the Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ... Analyses* Effect of Stratus on Solar Radiation: A Study using Millimeter Wave Cloud ...

  12. ARM - Publications: Science Team Meeting Documents

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

    Atmospheric Radiation Measurement (ARM) Science Team Meeting Domain-averaged, broadband solar radiative budgets for an evolving tropical mesoscale convective cloud system are...

  13. FY 1990 Applied Sciences Branch annual report

    SciTech Connect (OSTI)

    Keyes, B.M.; Dippo, P.C.

    1991-11-01

    The Applied Sciences Branch actively supports the advancement of DOE/SERI goals for the development and implementation of the solar photovoltaic technology. The primary focus of the laboratories is to provide state-of-the-art analytical capabilities for materials and device characterization and fabrication. The branch houses a comprehensive facility which is capable of providing information on the full range of photovoltaic components. A major objective of the branch is to aggressively pursue collaborative research with other government laboratories, universities, and industrial firms for the advancement of photovoltaic technologies. Members of the branch disseminate research findings to the technical community in publications and presentations. This report contains information on surface and interface analysis, materials characterization, development, electro-optical characterization module testing and performance, surface interactions and FTIR spectroscopy.

  14. ENGINEERED ELECTRODES AND ELECTRODE-ORGANIC INTERFACES FOR HIGH-EFFICIENCY ORGANIC PHOTOVOLTAICS

    SciTech Connect (OSTI)

    Tobin J. Marks; R.P.H. Chang; Tom Mason; Ken Poeppelmeier; Arthur J. Freeman

    2008-11-13

    Organic photovoltaic (OPV) cells offer the ultimate promise of low cost, readily manufacturable, and durable solar power. While recent advances have led to cells with impressive performance levels, OPV cells have yet to break the double-digit efficiency barrier. Further gains in efficiency and durability, to that competitive with high-performance inorganic photovoltaics will require breakthroughs in transparent electrode and interfacial materials science and engineering. This project involved an integrated basic research effort carried out by an experienced and highly collaborative interdisciplinary team to address in unconventional ways, critical electrode-interfacial issues underlying OPV performance--controlling band offsets between transparent electrodes and organics, addressing current loss/leakage problems at interfaces, enhancing adhesion, interfacial stability, and device durability while minimizing cost. It synergistically combined materials and interfacial reagent synthesis, nanostructural and photovoltaic characterization, and high level quantum theory. The research foci were: 1) understanding of/development of superior transparent electrode materials and materials morphologies--i.e., better matched electronically and chemically to organic active layers, 2) understanding-based development of inorganic interfacial current-collecting/charge-blocking layers, and 3) understanding-based development of self-assembled adhesion/current-collecting/charge-blocking/cross-linking layers for high-efficiency OPV interfaces. Pursing the goal of developing the fundamental scientific understanding needed to design, fabricate, prototype and ultimately test high-efficiency OPV cells incorporating these new concepts, we achieved a record power conversion efficiency of 5.2% for an organic bulk-heterjunction solar cell.

  15. Solar Easements

    Broader source: Energy.gov [DOE]

    New Hampshire's "solar skyspace easement" provisions allow property owners to create solar easements in order to create and preserve a right to unobstructed access to solar energy. Easements remain...

  16. Solar Newsletter

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

    Stationary Power/Energy Conversion Efficiency/Solar Energy/Solar Newsletter Solar Newsletter Tara Camacho-Lopez 2016-07-11T20:14:36+00:00

  17. Solar and Photovoltaic Data from the University of Oregon Solar Radiation Monitoring Laboratory (UO SRML)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The UO SRML is a regional solar radiation data center whose goal is to provide sound solar resource data for planning, design, deployment, and operation of solar electric facilities in the Pacific Northwest. The laboratory has been in operation since 1975. Solar data includes solar resource maps, cumulative summary data, daily totals, monthly averages, single element profile data, parsed TMY2 data, and select multifilter radiometer data. A data plotting program and other software tools are also provided. Shade analysis information and contour plots showing the effect of tilt and orientation on annual solar electric system perfomance make up a large part of the photovoltaics data.(Specialized Interface)

  18. First Solar Manufacturing Solar Modules

    Broader source: Energy.gov [DOE]

    In this photograph, a First Solar associate handles photovoltaic materials at the company's Ohio manufacturing plant. First Solar is an industry partner with the U.S. Department of Energy Solar...

  19. Region Solar Inc Solar Inc California Renewable Energy Solar...

    Open Energy Info (EERE)

    Point Drive Fort Collins Colorado Solar Solar cell passive solar architectural glass solar grid tie inverter semiconductor flat panel display data storage http www advanced...

  20. NREL: Solar Research - Solar Newsletter

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

    Solar Newsletter Subscribe: To receive new issues by email, subscribe to the newsletter. The Solar Newsletter is a monthly electronic newsletter that provides information on NREL's ...

  1. Web Service Interface (API)

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

    Service Interface (API) Engineering Services The Network OSCARS How It Works Who's Using OSCARS? OSCARS and Future Tech OSCARS Standard and Open Grid Forum OSCARS Developers Community Web Browser Interface (WBUI) Web Service Interface (API) Read More... Fasterdata IPv6 Network Network Performance Tools The ESnet Engineering Team Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems:

  2. Energy Science

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

    Solar Cells Nanostructures offer interesting advantages for constructing photovoltaic and photoelectrochemical solar cells but extreme-scale computational studies of...

  3. Text-Alt Sekaric Ready to Tackle Solar Challenges

    Broader source: Energy.gov [DOE]

    Lidija Sekaric is an award-winning physicist and the new acting director of the Solar Energy Technologies Office. She ready to utilize her background in nanoscale science and engineering to tackle the current challenges facing solar.

  4. Interface design principles for high-performance organic semiconductor devices

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

    Nie, Wanyi; Gupta, Gautam; Crone, Brian K.; Liu, Feilong; Smith, Darryl L.; Ruden, P. Paul; Kuo, Cheng -Yu; Tsai, Hsinhan; Wang, Hsing -Lin; Li, Hao; et al

    2015-03-23

    Organic solar cells (OSCs) are a promising cost-effective candidate in next generation photovoltaic technology. However, a critical bottleneck for OSCs is the electron/hole recombination loss through charge transfer state at the interface, which greatly limits the power conversion efficiency. W. Nie, A. Mohite, and co-workers demonstrate a simple strategy of suppressing the recombination rate by inserting a spacer layer at the donor-acceptor interface, resulting in a dramatic increase in power conversion efficiency.

  5. Thread Pool Interface (TPI)

    Energy Science and Technology Software Center (OSTI)

    2008-04-01

    Thread Pool Interface (TpI) provides a simple interface for running functions written in C or C++ in a thread-parallel mode. Application or library codes may need to perform operations thread-parallel on machines with multicore processors. the TPI library provides a simple mechanism for managing thread activation, deactivation, and thread-parallel execution of application-provided subprograms.

  6. Interface colloidal robotic manipulator

    DOE Patents [OSTI]

    Aronson, Igor; Snezhko, Oleksiy

    2015-08-04

    A magnetic colloidal system confined at the interface between two immiscible liquids and energized by an alternating magnetic field dynamically self-assembles into localized asters and arrays of asters. The colloidal system exhibits locomotion and shape change. By controlling a small external magnetic field applied parallel to the interface, structures can capture, transport, and position target particles.

  7. 2010 DOE National Science Bowl® Photos - Gale Range Middle School...

    Office of Science (SC) Website

    member Rishi Krishnan competes at the National Science Bowl Solar Car Competition in Washington, DC. Left to right; Rishi Krishnan Photograph by Dennis Brack, National Science Bowl ...

  8. Nevada Solar One Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Solar One Solar Power Plant Jump to: navigation, search Name Nevada Solar One Solar Power Plant Facility Nevada Solar One Sector Solar Facility Type Concentrating Solar Power...

  9. Mojave Solar Park Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Solar Park Solar Power Plant Jump to: navigation, search Name Mojave Solar Park Solar Power Plant Facility Mojave Solar Park Sector Solar Facility Type Concentrating Solar Power...

  10. Starwood Solar I Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Starwood Solar I Solar Power Plant Jump to: navigation, search Name Starwood Solar I Solar Power Plant Facility Starwood Solar I Sector Solar Facility Type Concentrating Solar...

  11. Proceedings of the Seventeenth DOE Solar Photochemistry Research Conference

    SciTech Connect (OSTI)

    Not Available

    1993-12-31

    The Seventeenth DOE Solar Photochemistry Research Conference sponsored by the Division of Chemical Sciences, Office of Basic Energy Sciences, is being held June 6--10, 1993, at Cragun`s Lodge and Conference Center, Brainerd, Minnesota The meeting is hosted this year by the Ames Laboratory of Iowa State University. The purpose of the meeting is to foster cooperation, collaboration, and exchange of current research ideas among grantees and contractors of the DOE Division of Chemical Sciences engaged in fundamental research on solar photochemical energy conversion. This conference provides a special opportunity for interaction among investigators from diverse traditional chemistry disciplines who share the common good of providing the knowledge and concepts needed for production of low cost fuels and chemicals or electricity by photochemical conversion of solar energy. Our special guest plenary lecturer is Professor Graham Fleming, of the University of Chicago, who will speak on ultrafast spectroscopic studies of molecular dynamics in the condensed phase. The remaining presentations on Monday will feature further investigations of ultrafast phenomena in solvation, electron transfer, and charge separation at interfaces. These will lead into the topical sessions which follow on photosynthesis, molecular models, photoinduced charge transfer in homogeneous and heterogeneous solutions, inorganic photochemistry, and photoelectrochemistry. As an added feature, the photoelectrochemistry session will include six short introductory lectures for the benefit of nonspecialists on outstanding issues and problems in that field. In this volume may be found a copy of the program, the abstracts of 28 formal presentations and 59 posters, as well as an address listing of the 114 participants.

  12. Solar Power

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

    Solar Power Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWh/sq meter power production potential As the accompanying map of New Mexico shows, the WIPP site enjoys abundant year-round sunshine. With an average solar power production potential of 6-7 kWh/sq meter per day, one exciting project being studied for location at WIPP is a 30-50 MW Solar Power Tower: The American Solar Energy Society (ASES) is is a national trade

  13. "Solar Fuels and Energy Storage: The Unmet Needs" conference...

    Office of Science (SC) Website

    "Solar Fuels and Energy Storage: The Unmet Needs" conference sponsored by UNC: EFRC Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & ...

  14. "Building the Dye-Sensitized Solar Fuel Device" Conference |...

    Office of Science (SC) Website

    Building the Dye-Sensitized Solar Fuel Device" Conference Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News EFRC ...

  15. 2D Monolayers Could Yield Thinnest Solar Cells Ever

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

    yield thinner, more lightweight solar panels that ... was how well do these materials absorb light," he said. "And that is ... The researchers also used the National Science ...

  16. Operator interface for vehicles

    DOE Patents [OSTI]

    Bissontz, Jay E

    2015-03-10

    A control interface for drivetrain braking provided by a regenerative brake and a non-regenerative brake is implemented using a combination of switches and graphic interface elements. The control interface comprises a control system for allocating drivetrain braking effort between the regenerative brake and the non-regenerative brake, a first operator actuated control for enabling operation of the drivetrain braking, and a second operator actuated control for selecting a target braking effort for drivetrain braking. A graphic display displays to an operator the selected target braking effort and can be used to further display actual braking effort achieved by drivetrain braking.

  17. ImagineSolar | Open Energy Information

    Open Energy Info (EERE)

    Workforce training, Corporate consulting - Solar projects, Solar sales, Solar marketing, Solar business development, Solar policy, Solar advocacy, Solar government...

  18. Solar Manufacturing Projects | Department of Energy

    Office of Environmental Management (EM)

    Solar Manufacturing Projects Solar Manufacturing Projects Solar Manufacturing Projects Solar Manufacturing Projects Solar Manufacturing Projects Solar Manufacturing Projects SOLAR ...

  19. SSRL Science | Stanford Synchrotron Radiation Lightsource

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

    Science SSRL Science Visit our Science Highlights Archive and list of User and Staff Publications for examples of SSRL user research. Accelerator Physics Macromolecular Crystallography (SMB) Magnetic Dichroism Spectroscopy & Microscopy Materials Scattering Molecular Environmental & Interface Science Near Edge X-ray Absorption Fine Structure (NEXAFS) SAXS Materials Science Powder Diffraction Small Angle Scattering/Diffraction (SMB) Total X-ray Reflection Fluorescence (TXRF) X-ray

  20. Solar Rights

    Broader source: Energy.gov [DOE]

    In the context of this law, a solar energy device is a system "manufactured and sold for the sole purpose of facilitating the collection and beneficial use of solar energy, including passive...

  1. Solar Rights

    Broader source: Energy.gov [DOE]

    A solar energy system is defined as "a system affixed to a building or buildings that uses solar devices, which are thermally isolated from living space or any other area where the energy is used...

  2. Solar Blog

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

    96426 Solar Blog en Solar Energy Jobs Outpace U.S. Economy http:energy.govarticlessolar-energy-jobs-outpace-us-economy

  3. Solar Rights

    Broader source: Energy.gov [DOE]

    Cities and counties in North Carolina generally may not adopt ordinances prohibiting the installation of "a solar collector that gathers solar radiation as a substitute for traditional energy for...

  4. Solar Forecasting

    Broader source: Energy.gov [DOE]

    On December 7, 2012, DOE announced $8 million to fund two solar projects that are helping utilities and grid operators better forecast when, where, and how much solar power will be produced at U.S....

  5. NERSC-ScienceHighlightsSept2013.ppt

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

    2013 NERSC Science Highlights --- 1 --- NERSC User Science Highlights Materials Simulation takes solar power in a new direction: world's thinnest solar cell (J. Grossman, MIT) Geoscience New understanding of how crystals form (A. Wallace, U. Delaware) Life Sciences Answering fundamental questions about the forces that cause protein misfolding P. Ghatty (ORNL) Fusion Shedding new light on pesky "snakes" that cool magnetic fusion reactions (L. Sugiyama, MIT) Chemistry Better catalysts

  6. TSF Interface Package

    Energy Science and Technology Software Center (OSTI)

    2004-03-01

    A collection of packages of classes for interfacing to sparse and dense matrices, vectors and graphs, and to linear operators. TSF (via TSFCore, TSFCoreUtils and TSFExtended) provides the application programmer interface to any number of solvers, linear algebra libraries and preconditioner packages, providing also a sophisticated technique for combining multiple packages to solve a single problem. TSF provides a collection of abstract base classes that define the interfaces to abstract vector, matrix and linear soeratormore » objects. By using abstract interfaces, users of TSF are not limiting themselves to any one concrete library and can in fact easily combine multiple libraries to solve a single problem.« less

  7. Solar collectors

    SciTech Connect (OSTI)

    Cassidy, V.M.

    1981-11-01

    Practical applications of solar energy in commercial, industrial and institutional buildings are considered. Two main types of solar collectors are described: flat plate collectors and concentrating collectors. Efficiency of air and hydronic collectors among the flat plate types are compared. Also several concentrators are described, including their sun tracking mechanisms. Descriptions of some recent solar installations are presented and a list representing the cross section of solar collector manufacturers is furnished.

  8. Performance Application Programming Interface

    Energy Science and Technology Software Center (OSTI)

    2005-10-31

    PAPI is a programming interface designed to provide the tool designer and application engineer with a consistent interface and methodology for use of the performance counter hardware found in most major microprocessors. PAPI enables software engineers to see, in near real time, the relation between software performance and processor events. This release covers the hardware dependent implementation of PAPI version 3 for the IBM BlueGene/L (BG/L) system.

  9. TRANSIMS Interface Development

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

    transims TRANSIMS Interface Development TRACC RESEARCH Computational Fluid Dynamics Computational Structural Mechanics Transportation Systems Modeling TRANSIMS Studio (Figure 1) has been developed by TRACC for the TRANSIMS community as part of the TRANSIMS Open Source project. It provides an integrated development environment (IDE) for TRANSIMS by combining a number of components that work seamlessly with each other. The visible part of the IDE is the graphical user interface (GUI) that allows

  10. Lesson 9 - Solar Ovens

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

    Lesson 9 - Solar Ovens Colorado Academic Standards: Standard 3: Earth Systems Science Kindergarten: Concepts and skills students master: 1. The Sun provides heat and light to Earth 1 st grade: Concepts and skills students master: 1. Earth's materials can be compared and classified based on their properties 2 nd grade: Concepts and skills students master: 1. Weather and the changing seasons impact the environment and organisms such as humans, plants, and other animals Math Standard 4: Shape,

  11. Connecting Three Atomic Layers Puts Semiconducting Science on...

    Office of Science (SC) Website

    the linear junction region along the triangular interface produces enhanced light emission (red region). The Science A new semiconducting material that is only three atomic...

  12. Purchasing Solar Collectively with Solarize

    Broader source: Energy.gov [DOE]

    This video provides an overview of the concept behind The Solarize Guidebook, which offers neighborhoods a plan for getting volume discounts when making group purchases of rooftop solar energy...

  13. The Fluid Interface Reactions Structures and Transport (FIRST) EFRC (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    SciTech Connect (OSTI)

    Wesolowski, David J.; FIRST Staff

    2011-05-01

    'The Fluid Interface Reactions Structures and Transport (FIRST) EFRC' was submitted by FIRST to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. FIRST, an EFRC directed by David J. Wesolowski at the Oak Ridge National Laboratory is a partnership of scientists from nine institutions: Oak Ridge National Laboratory (lead), Argonne National Laboratory, Drexel University, Georgia State University, Northwestern University, Pennsylvania State University, Suffolk University, Vanderbilt University, and University of Virginia. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of Fluid Interface Reactions, Structures and Transport Center is 'to develop quantitative and predictive models of the unique nanoscale environment at fluid-solid interfaces that will enable transformational advances in electrical energy storage and heterogeneous catalysis for solar fuels.' Research topics are: catalysis (biomass, CO{sub 2}, water), electrocatalysis, photocatalysis, photoelectrocatalysis, solar fuels, solar electrodes, electrical energy storage, batteries, capacitors, battery electrodes, electrolytes, extreme environment, CO{sub 2} (convert), greenhouse gas, microelectromechanical systems (MEMS), interfacial characterization, matter by design, novel materials synthesis, and charge transport.

  14. The Fluid Interface Reactions Structures and Transport (FIRST) EFRC (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Wesolowski, David J. (Director, FIRST - Fluid Interface Reactions, Structures, and Transport Center); FIRST Staff

    2011-11-02

    'The Fluid Interface Reactions Structures and Transport (FIRST) EFRC' was submitted by FIRST to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. FIRST, an EFRC directed by David J. Wesolowski at the Oak Ridge National Laboratory is a partnership of scientists from nine institutions: Oak Ridge National Laboratory (lead), Argonne National Laboratory, Drexel University, Georgia State University, Northwestern University, Pennsylvania State University, Suffolk University, Vanderbilt University, and University of Virginia. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of Fluid Interface Reactions, Structures and Transport Center is 'to develop quantitative and predictive models of the unique nanoscale environment at fluid-solid interfaces that will enable transformational advances in electrical energy storage and heterogeneous catalysis for solar fuels.' Research topics are: catalysis (biomass, CO{sub 2}, water), electrocatalysis, photocatalysis, photoelectrocatalysis, solar fuels, solar electrodes, electrical energy storage, batteries, capacitors, battery electrodes, electrolytes, extreme environment, CO{sub 2} (convert), greenhouse gas, microelectromechanical systems (MEMS), interfacial characterization, matter by design, novel materials synthesis, and charge transport.

  15. Fire Science

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

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Balance of Systems and Soft Costs Evaluating Rooftop Strength for PV PV Value Solar ...

  16. Studying the Solar System's Chemical Recipe

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

    the Division of Physical Sciences at UCSD, has worked to learn how our solar system evolved. Now he and his colleagues Teresa Jackson and Subrata Chakraborty (who won the David A....

  17. First Rocks from Outside the Solar System

    SciTech Connect (OSTI)

    Westphal, Andrew

    2014-10-17

    Andrew Westphal presents his findings in examining the first rocks from outside the solar system at our '8 Big Ideas' Science at the Theater event on October 8th, 2014, in Oakland, California.

  18. Science and Science Fiction

    ScienceCinema (OSTI)

    Scherrer, Robert [Vanderbilt University, Nashville, Tennessee, United States

    2009-09-01

    I will explore the similarities and differences between the process of writing science fiction and the process of 'producing' science, specifically theoretical physics. What are the ground rules for introducing unproven new ideas in science fiction, and how do they differ from the corresponding rules in physics? How predictive is science fiction? (For that matter, how predictive is theoretical physics?) I will also contrast the way in which information is presented in science fiction, as opposed to its presentation in scientific papers, and I will examine the relative importance of ideas (as opposed to the importance of the way in which these ideas are presented). Finally, I will discuss whether a background as a research scientist provides any advantage in writing science fiction.

  19. Science Briefs

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

    Science Briefs Science Briefs Read in detail about specific Los Alamos science achievements, and the honors our scientists are accruing. Science Briefs - 2016» Science Briefs - 2015» Science Briefs - 2014» Science Briefs - 2013» Science Briefs - 2012» Science Briefs - 2011» Elizabeth Kelly Kelly named Fellow of the American Statistical Association The American Statistical Association (ASA) has honored Elizabeth Kelly with the title of Fellow. - 8/2/16 Beverly Aikin, left, and Ellen Cerreta

  20. ARM: Baseline Solar Radiation Network (BSRN): solar irradiances...

    Office of Scientific and Technical Information (OSTI)

    Baseline Solar Radiation Network (BSRN): solar irradiances Title: ARM: Baseline Solar Radiation Network (BSRN): solar irradiances Baseline Solar Radiation Network (BSRN): solar ...

  1. Deming Solar Plant Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Deming Solar Plant Solar Power Plant Jump to: navigation, search Name Deming Solar Plant Solar Power Plant Facility Deming Solar Plant Sector Solar Facility Type Photovoltaic...

  2. SES Calico Solar One Project Solar Power Plant | Open Energy...

    Open Energy Info (EERE)

    Calico Solar One Project Solar Power Plant Jump to: navigation, search Name SES Calico Solar One Project Solar Power Plant Facility SES Calico Solar One Project Sector Solar...

  3. Nvision.Solar - Ravnishte Solar PV Plant | Open Energy Information

    Open Energy Info (EERE)

    Solar - Ravnishte Solar PV Plant Jump to: navigation, search Name Nvision.Solar - Ravnishte Solar PV Plant Facility Ravishte roof and facade mounted solar power plant Sector Solar...

  4. Solar Millenium Palen Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Palen Solar Power Plant Jump to: navigation, search Name Solar Millenium Palen Solar Power Plant Facility Solar Millenium Palen Sector Solar Facility Type Concentrating Solar Power...

  5. SES Solar Two Project Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Two Project Solar Power Plant Jump to: navigation, search Name SES Solar Two Project Solar Power Plant Facility SES Solar Two Project Sector Solar Facility Type Concentrating Solar...

  6. Carrizo Energy Solar Farm Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Carrizo Energy Solar Farm Solar Power Plant Jump to: navigation, search Name Carrizo Energy Solar Farm Solar Power Plant Facility Carrizo Energy Solar Farm Sector Solar Facility...

  7. Beacon Solar Energy Project Solar Power Plant | Open Energy Informatio...

    Open Energy Info (EERE)

    Solar Energy Project Solar Power Plant Jump to: navigation, search Name Beacon Solar Energy Project Solar Power Plant Facility Beacon Solar Energy Project Sector Solar Facility...

  8. Prescott Airport Solar Plant Solar Power Plant | Open Energy...

    Open Energy Info (EERE)

    Prescott Airport Solar Plant Solar Power Plant Jump to: navigation, search Name Prescott Airport Solar Plant Solar Power Plant Facility Prescott Airport Solar Plant Sector Solar...

  9. El Dorado Solar Project Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Solar Project Solar Power Plant Jump to: navigation, search Name El Dorado Solar Project Solar Power Plant Facility El Dorado Solar Project Sector Solar Facility Type Photovoltaic...

  10. Los Alamos Lab: Science Program Office, Energy Security Newsletter

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

    Fossil Energy & Environment Home Office of Science Home ... of a New Era for Solar Energy Carrier multiplication and quantum dots can double the efficiency of photovoltaic panels. ...

  11. DOE Science Showcase - Wind Power | OSTI, US Dept of Energy,...

    Office of Scientific and Technical Information (OSTI)

    Profiling General Compression: A River of Wind, ScienceCinema, multimedia Solar and Wind Energy Resource Assessment (SWERA) Data from the National Renewable Energy Library and ...

  12. Teachers Invited to April 2 Science Activities Night at Jefferson...

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

    science games, sound, force and motion, the periodic table, diffraction, the solar system, static electricity, renewable energy, and compounds and mixtures. Teacher...

  13. Teachers Invited to April 20 Science Activities Night at Jefferson...

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

    science games, sound, force and motion, the periodic table, diffraction, the solar system, static electricity, renewable energy, and compounds and mixtures. In...

  14. High temperature interface superconductivity

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

    Gozar, A.; Bozovic, I.

    2016-01-20

    High-Tc superconductivity at interfaces has a history of more than a couple of decades. In this review we focus our attention on copper-oxide based heterostructures and multi-layers. We first discuss the technique, atomic layer-by-layer molecular beam epitaxy (ALL-MBE) engineering, that enabled High-Tc Interface Superconductivity (HT-IS), and the challenges associated with the realization of high quality interfaces. Then we turn our attention to the experiments which shed light on the structure and properties of interfacial layers, allowing comparison to those of single-phase films and bulk crystals. Both ‘passive’ hetero-structures as well as surface-induced effects by external gating are discussed. Here, wemore » conclude by comparing HT-IS in cuprates and in other classes of materials, especially Fe-based superconductors, and by examining the grand challenges currently laying ahead for the field.« less

  15. Interface Surprises May Motivate Novel Oxide Electronic Devices

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

    Interface Surprises May Motivate Novel Oxide Electronic Devices Interface Surprises May Motivate Novel Oxide Electronic Devices NERSC Helps Corroborate Two Distinct Mechanisms in Ferroelectric Material September 23, 2014 Contact: Dawn Levy, levyd@ornl.gov,+1 865.576.6448 Complex oxides have long tantalized the materials science community for their promise in next-generation energy and information technologies. Complex oxide crystals combine oxygen atoms with assorted metals to produce unusual

  16. 15.07.15 RH Interface Engineering - JCAP

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

    Interface Engineering for Stable, High-Performance Photoanodes Zhou, X. et al. Interface Engineering of the Photoelectrochemical Performance of Ni-Oxide-Coated n-Si Photoanodes by Atomic-Layer Deposition of Ultrathin Films of Cobalt Oxide. Energy & Environmental Science, DOI: 10.1039/C5EE01687H (2015). Scientific Achievement We demonstrated that interfacial transition-metal oxide layers provide a route to stable, high-performance photoanodes for oxygen evolution in contact with aqueous 1 M

  17. Profile Interface Generator

    Energy Science and Technology Software Center (OSTI)

    2013-11-09

    The Profile Interface Generator (PIG) is a tool for loosely coupling applications and performance tools. It enables applications to write code that looks like standard C and Fortran functions calls, without requiring that applications link to specific implementations of those function calls. Performance tools can register with PIG in order to listen to only the calls that give information they care about. This interface reduces the build and configuration burden on application developers and allowsmore » semantic instrumentation to live in production codes without interfering with production runs.« less

  18. Solar Glare Hazard Analysis Tool

    SciTech Connect (OSTI)

    2014-08-25

    SGHAT predicts the occurrence and intensity of glare caused by a user-specified solar panel array when viewed from one or more observation points. An interactive mapping interface is used to determine the latitude, longitude and elevation of the array and observation points. The presence and intensity of glare is then calculated along a given time interval throughout the year, based on the position of the sun. The potential ocular hazard is also reported. The maximum energy production of the solar array is also estimated so that alternative designs can be compared to determine the design that yields the most energy production while mitigating glare.

  19. Solar Glare Hazard Analysis Tool

    SciTech Connect (OSTI)

    2013-04-17

    SGHAT predicts the occurrence and intensity of glare caused by a user-specified solar panel array when viewed from one or more observation points. An interactive mapping interface is used to determine the latitude, longitude and elevation of the array and observation points. The presence and intensity of glare is then calculated along a given time interval throughout the year, based on the position of the sun. The potential ocular hazard is also reported. The maximum energy production of the solar array is also estimated so that alternative designs can be compared to determine the design that yields the most energy production while mitigating glare.

  20. Solar Glare Hazard Analysis Tool

    Energy Science and Technology Software Center (OSTI)

    2013-04-17

    SGHAT predicts the occurrence and intensity of glare caused by a user-specified solar panel array when viewed from one or more observation points. An interactive mapping interface is used to determine the latitude, longitude and elevation of the array and observation points. The presence and intensity of glare is then calculated along a given time interval throughout the year, based on the position of the sun. The potential ocular hazard is also reported. The maximummore »energy production of the solar array is also estimated so that alternative designs can be compared to determine the design that yields the most energy production while mitigating glare.« less

  1. Solar Glare Hazard Analysis Tool

    Energy Science and Technology Software Center (OSTI)

    2014-08-25

    SGHAT predicts the occurrence and intensity of glare caused by a user-specified solar panel array when viewed from one or more observation points. An interactive mapping interface is used to determine the latitude, longitude and elevation of the array and observation points. The presence and intensity of glare is then calculated along a given time interval throughout the year, based on the position of the sun. The potential ocular hazard is also reported. The maximummore »energy production of the solar array is also estimated so that alternative designs can be compared to determine the design that yields the most energy production while mitigating glare.« less

  2. Los Alamos Science in the News

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

    News Los Alamos Science in the News Read about what other news sources are saying about Los Alamos science achievements. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets Los Alamos to investigate solar dangers to the power grid Los Alamos to investigate solar dangers to the power grid LANL launches a new investigation of how solar events could affect a grid like a long string of Christmas lights-increasingly long and susceptible to a cascade of

  3. NREL: Concentrating Solar Power Research - Concentrating Solar...

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

    Concentrating Solar Power Resource Maps These direct-normal solar radiation maps-filtered by solar resource and land availability-identify the most economically suitable lands ...

  4. Solar Newsletter

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

    Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas ...

  5. Solar Mapper

    Broader source: Energy.gov [DOE]

    Interactive, online mapping tool providing access to spatial data related to siting utility-scale solar facilities in the southwestern United States.

  6. Solar Newsletter

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

    Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water ...

  7. Solar Newsletter

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

    Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & ...

  8. Solar Decathlon

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

    ... Administration and DOE EERE International Program: Solar Decathlon China 2013 16 | Building Technologies Office eere.energy.gov Project Integration, Collaboration & Market Impact ...

  9. Solar Rights

    Broader source: Energy.gov [DOE]

    Ordinances, bylaws, or regulations may reasonably restrict the installation and use of solar energy devices to protect public health and safety, buildings from damage, historic/aesthetic values (...

  10. the EXFOR interface

    Energy Science and Technology Software Center (OSTI)

    2011-03-10

    The x4i package is an interface to the EXFOR nuclear data library. It simplifies retrieval of EXFOR entries and can automatically parse them, allowing one to extract cross-section (and other) data in a simple, plot-able format. x4i also understands and can parse the entire reaction string, allowing one to build a strategy for processing the data

  11. Photochemistry at Interfaces

    SciTech Connect (OSTI)

    Eisenthal, Kenneth B

    2015-02-24

    We have advanced our capabilities to investigate ultrafast excited state dynamics at a liquid interface using a pump to excite molecules to higher electronic states and then probe the subsequent time evolution of the interfacial molecules with femtosecond time delayed vibrational SFG.

  12. SOLERAS - Solar Energy Water Desalination Project: Catalytic. System design final report. Volume 1. System requirement definition and system analysis

    SciTech Connect (OSTI)

    Not Available

    1986-01-01

    Catalytic Inc. was awarded a contract to conduct a preliminary system design and cost analysis for a brackish water desalination project to be located in Brownsville, Texas. System analyses and economic analyses were performed to define the baseline solar energy desalination system. The baseline system provides an average daily product water capacity of 6000 mT. The baseline system is optimal relative to technological risk, performance, and product water cost. Subsystems and their interfaces have been defined and product water cost projections made for commercial plants in a range of capacities. Science Applications, Inc. (SAI), subcontractor to Catalytic, had responsibility for the solar power system. This, the final report, summarizes the work performed under the Phase I effort.

  13. Unified Solar

    Broader source: Energy.gov [DOE]

    Unified Solar is an MIT startup that is commercializing an integrated circuit solution that eliminates most of the adverse effects caused by partial shading in photovoltaic power systems. With its patent-pending design, Unified Solar's solution is smaller, cheaper and more powerful than any competing power optimizer in the market.

  14. Heterogeneous Catalysis and Surface Science - JCAP

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

    Heterogeneous Catalysis and Surface Science / Part I: Surface Science in JCAP Laboratories Heterogeneous Catalysis and Surface Science research in JCAP focuses on the basic understanding of the relationships among the structure, composition, and reactivity of electrocatalysts. Knowledge gained from surface science experimentation can be implemented toward the discovery of better heterogeneous catalysts for solar-fuel production from carbon dioxide and water. REFERENCE Soriaga, M. P. et al.

  15. Sandia Energy - Solar Resource Assessment

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

    Solar Resource Assessment Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Resource Assessment Solar Resource AssessmentTara...

  16. Sandia Energy - Solar Market Transformation

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

    Solar Market Transformation Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Market Transformation Solar Market TransformationTara...

  17. Thyra Abstract Interface Package

    Energy Science and Technology Software Center (OSTI)

    2005-09-01

    Thrya primarily defines a set of abstract C++ class interfaces needed for the development of abstract numerical atgorithms (ANAs) such as iterative linear solvers, transient solvers all the way up to optimization. At the foundation of these interfaces are abstract C++ classes for vectors, vector spaces, linear operators and multi-vectors. Also included in the Thyra package is C++ code for creating concrete vector, vector space, linear operator, and multi-vector subclasses as well as other utilitiesmore » to aid in the development of ANAs. Currently, very general and efficient concrete subclass implementations exist for serial and SPMD in-core vectors and multi-vectors. Code also currently exists for testing objects and providing composite objects such as product vectors.« less

  18. Popeye Project: ROV interfaces

    SciTech Connect (OSTI)

    Scates, C.R.; Hickok, D.D.; Hernandez, D.A.

    1997-04-01

    The Popeye Project in the Gulf of Mexico helped advance the technology and standardization of ROV interfaces for deepwater subsea production systems. Some of the many successful ROV operations during installation and completion were {open_quotes}first-of-it`s-kind{close_quotes} activities-enabled by many technical advances. The use and reliance upon ROV systems for support of deepwater drilling and installation operations significantly increased in the past 10 years. Shell Offshore Inc.`s (SOI) confidence in this increased capability was an important factor in many of the design decisions which characterized the innovative system. Technology advancements, which depended on effective ROV intervention, were implemented with no significant difficulties. These advancements, in particular the flying leads and seabed position methods, are available to the industry for other deepwater subsea systems. In addition, several Popeye ROV interfaces have helped advance the subsea standardization initiative; e.g., hot stabs, torque-tool end effectors, and paint color.

  19. TJ Solar Cell

    SciTech Connect (OSTI)

    Friedman, Daniel

    2009-04-17

    This talk will discuss recent developments in III-V multijunction photovoltaic technology which have led to the highest-efficiency solar cells ever demonstrated. The relationship between the materials science of III-V semiconductors and the achievement of record solar cell efficiencies will be emphasized. For instance, epitaxially-grown GAInP has been found to form a spontaneously-ordered GaP/InP (111) superlattice. This ordering affects the band gap of the material, which in turn affects the design of solar cells which incorporate GaInP. For the next generation of ultrahigh-efficiency III-V solar cells, we need a new semiconductor which is lattice-matched to GaAs, has a band gap of 1 eV, and has long minority-carrier diffusion lengths. Out of a number of candidate materials, the recently-discovered alloy GaInNAs appears to have the greatest promise. This material satisfies the first two criteria, but has to date shown very low diffusion lengths, a problem which is our current focus in the development of these next-generation cells.

  20. Virtual button interface

    DOE Patents [OSTI]

    Jones, Jake S.

    1999-01-01

    An apparatus and method of issuing commands to a computer by a user interfacing with a virtual reality environment. To issue a command, the user directs gaze at a virtual button within the virtual reality environment, causing a perceptible change in the virtual button, which then sends a command corresponding to the virtual button to the computer, optionally after a confirming action is performed by the user, such as depressing a thumb switch.

  1. Virtual button interface

    DOE Patents [OSTI]

    Jones, J.S.

    1999-01-12

    An apparatus and method of issuing commands to a computer by a user interfacing with a virtual reality environment are disclosed. To issue a command, the user directs gaze at a virtual button within the virtual reality environment, causing a perceptible change in the virtual button, which then sends a command corresponding to the virtual button to the computer, optionally after a confirming action is performed by the user, such as depressing a thumb switch. 4 figs.

  2. Standard interface file handbook

    SciTech Connect (OSTI)

    Shapiro, A.; Huria, H.C. )

    1992-10-01

    This handbook documents many of the standard interface file formats that have been adopted by the US Department of Energy to facilitate communications between and portability of, various large reactor physics and radiation transport software packages. The emphasis is on those files needed for use of the VENTURE/PC diffusion-depletion code system. File structures, contents and some practical advice on use of the various files are provided.

  3. Transportation Storage Interface

    Office of Environmental Management (EM)

    of Future Extended Storage and Transportation Transportation-Storage Interface James Rubenstone Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission National Transportation Stakeholders Forum May 2012 ♦ Knoxville, Tennessee Overview * Changing policy environment * Regulatory framework-current and future * Extended storage and transportation-technical information needs * Next Steps 2 Current Policy Environment * U.S. national policy for disposition of spent

  4. Basic Energy Sciences

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

    Sciences - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy

  5. Materials Sciences and Engineering

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

    Sciences and Engineering - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced

  6. Visual Interface for Materials Simulations

    Energy Science and Technology Software Center (OSTI)

    2004-08-01

    VIMES (Visual Inteface for Materials Simulations) is a graphical user interface (GUI) for pre- and post-processing alomistic materials science calculations. The code includes tools for building and visualizing simple crystals, supercells, and surfaces, as well as tools for managing and modifying the input to Sandia materials simulations codes such as Quest (Peter Schultz, SNL 9235) and Towhee (Marcus Martin, SNL 9235). It is often useful to have a graphical interlace to construct input for materialsmore » simulations codes and to analyze the output of these programs. VIMES has been designed not only to build and visualize different materials systems, but also to allow several Sandia codes to be easier to use and analyze. Furthermore. VIMES has been designed to be reasonably easy to extend to new materials programs. We anticipate that users of Sandia materials simulations codes will use VIMCS to simplify the submission and analysis of these simulations. VIMES uses standard OpenGL graphics (as implemented in the Python programming language) to display the molecules. The algorithms used to rotate, zoom, and pan molecules are all standard applications using the OpenGL libraries. VIMES uses the Marching Cubes algorithm for isosurfacing 3D data such as molecular orbitals or electron densities around the molecules.« less

  7. Visual Interface for Materials Simulations

    SciTech Connect (OSTI)

    2004-08-01

    VIMES (Visual Inteface for Materials Simulations) is a graphical user interface (GUI) for pre- and post-processing alomistic materials science calculations. The code includes tools for building and visualizing simple crystals, supercells, and surfaces, as well as tools for managing and modifying the input to Sandia materials simulations codes such as Quest (Peter Schultz, SNL 9235) and Towhee (Marcus Martin, SNL 9235). It is often useful to have a graphical interlace to construct input for materials simulations codes and to analyze the output of these programs. VIMES has been designed not only to build and visualize different materials systems, but also to allow several Sandia codes to be easier to use and analyze. Furthermore. VIMES has been designed to be reasonably easy to extend to new materials programs. We anticipate that users of Sandia materials simulations codes will use VIMCS to simplify the submission and analysis of these simulations. VIMES uses standard OpenGL graphics (as implemented in the Python programming language) to display the molecules. The algorithms used to rotate, zoom, and pan molecules are all standard applications using the OpenGL libraries. VIMES uses the Marching Cubes algorithm for isosurfacing 3D data such as molecular orbitals or electron densities around the molecules.

  8. Award-Winning Etching Process Cuts Solar Cell Costs

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

    Award-Winning Etching Process Cuts Solar Cell Costs Optimizing solar-cell technology can be a complex job, requiring expertise in material science, physics, and optics to convert as much sunlight as possible into electricity. But despite this complexity, a simple fact is key to making a high-performance solar cell: any sunlight reflected off the cell can't possibly be converted into electricity. Manufacturers have tried to minimize the reflection of sunlight off of solar cells by first

  9. DOE Outlines Research Needed to Improve Solar Energy Technologies |

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

    Department of Energy Outlines Research Needed to Improve Solar Energy Technologies DOE Outlines Research Needed to Improve Solar Energy Technologies August 12, 2005 - 2:39pm Addthis WASHINGTON, D.C. - To help achieve the Bush Administration's goal of increased use of solar and other renewable forms of energy, the Department of Energy's (DOE) Office of Science has released a report describing the basic research needed to produce "revolutionary progress in bringing solar energy to its

  10. Proceedings of the twenty-first DOE solar photochemistry research conference

    SciTech Connect (OSTI)

    1997-06-01

    The Solar Photochemistry Research Conference brings together grantees and contractors of the Division of Chemical Sciences who are engaged in fundamental research on solar photochemical energy conversion. The annual conference provides a focus for the program by allowing for the exchange of new information and ideas, identification of needs and opportunities, and fostering of collaborations among investigators of disparate chemistry backgrounds. The synergy that has been achieved is a major strength of the program. The research provides the foundations for future solar technologies, in which light-induced charge separation processes will be applied to conversion of light energy to chemical energy, e.g., production of alcohols from carbon dioxide, hydrogen from water, ammonia from atmospheric nitrogen, or other needed chemicals at lower cost of by using sunlight as the energy source. The program includes topical sessions on semiconductor nanoparticles, nanocrystalline films, and photoinduced charge separation at the semiconductor/liquid interface; photochemistry and photophysics of transition metal complexes; photoinduced charge separation in zeolites and lamellar assemblies; intramolecular charge separation and electron transfer; dynamics of solvation and solution interfaces; and photoconversion via porphyrins and biomimetic constructs. The special guest plenary lecturer is Professor Moungi Bawendi of the Massachusetts Institute of Technology, who spoke on semiconductor nanocrystallites (quantum dots). As an added feature, Tom Surek, the Photovoltaics Technology program manager at NREL, presented a status report on one of the most promising and heavily supported programs in solar energy conversion technology, solid state photovoltaics. This volume contains the agenda for the meeting, abstracts of the 31 formal presentations and 55 posters, as well as an address list for the 111 participants.