271 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Cadmium Telluride"  
prev Results: 49 - 72 next
open access

Processing and modeling issues for thin-film solar cell devices. Final report

Description: During the third phase of the subcontract, IEC researchers have continued to provide the thin film PV community with greater depth of understanding and insight into a wide variety of issues including: the deposition and characterization of CuIn{sub 1-x}Ga{sub x}Se{sub 2}, a-Si, CdTe, CdS, and TCO thin films; the relationships between film and device properties; and the processing and analysis of thin film PV devices. This has been achieved through the systematic investigation of all aspects of … more
Date: November 1, 1997
Creator: Birkmire, R.W. & Phillips, J.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Baseline Evaluation of Thin-Film Amorphous Silicon, Copper Indium Diselenide, and Cadmium Telluride for the 21st Century: Preprint

Description: This paper examines three thin-film PV technologies: amorphous silicon, cadmium telluride, and copper indium selenide. The purpose is to: (1) assess their status and potential; (2) provide an improved set of criteria for comparing these existing thin films against any new PV technological alternatives, and examining the longer-term (c. 2050) potential of thin films to meet cost goals that would be competitive with conventional sources of energy without any added value from the substantial envir… more
Date: April 1, 1999
Creator: Zweibel, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Module process optimization and device efficiency improvement for stable, low-cost, large-area, cadmium telluride-based photovoltaic module production. Annual subcontract report, 1 July 1990--31 December 1991

Description: This report describes work under a three-year phased subcontract to develop CdS/CdTe devices and modules and to further improve the technology base at Photon Energy, Inc. (PEI) to better address the commercialization issues and objectives of the PEI and the US Department of Energy. During this reporting period we (1) achieved efficiencies of 12.7% on small area devices, (2) achieved 1-ft{sup 2} modules with over 8% aperture-area efficiency (and active area efficiencies up to {approximately}10%)… more
Date: April 1, 1992
Creator: Albright, S. P.; Ackerman, B.; Chamberlin, R. R. & Jordan, J. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a computer model for polycrystalline thin-film CuInSe{sub 2} and CdTe solar cells. Final subcontract report, 1 January 1991--31 December 1991

Description: This report describes work to develop an accurate numerical model for CuInSe{sub 2} (CIS) and CdTe-based solar cells capable of running on a personal computer. Such a model will aid researchers in designing and analyzing CIS- and CdTe-based solar cells. ADEPT (A Device Emulation Pregrain and Tool) was used as the basis for this model. An additional objective of this research was to use the models developed to analyze the performance of existing and proposed CIS- and CdTe-based solar cells. The … more
Date: September 1, 1992
Creator: Gray, J. L.; Schwartz, R. J. & Lee, Y. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Photovoltaic Energy Program overview, fiscal year 1997

Description: The US Department of Energy (DOE) Photovoltaic Energy Program fosters the widespread acceptance of photovoltaic (PV) technology and accelerates commercial use of US PV products. The Program is founded on a collaborative strategy involving industry, the research and development community, potential users, utilities, and state and federal agencies. There are three main Program elements: Systems Engineering and Applications, Technology Development, and Research and Development.
Date: February 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Photovoltaic energy program overview, fiscal year 1991. Programs in utility technologies

Description: The Photovoltaics Program Plan, FY 1991--FY 1995 builds on the accomplishments of the past 5 years and broadens the scope of program activities for the future. The previous plan emphasized materials and PV cell research. Under the balanced new plan, the PV Program continues its commitment to strategic research and development (R&D) into PV materials and processes, while also beginning work on PV systems and helping the PV industry encourage new markets for photovoltaics. A major challenge for t… more
Date: February 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Polycrystalline CuInSe{sub 2} and CdTe solar cells. Annual subcontract report, April 15, 1992--April 14, 1993

Description: The principal objective of the research project is to develop processes for the fabrication of cadmium-telluride, CdTe, and copper-indium-gallium-diselenide, Cu(In{sub 1{minus}x}Ga{sub x})Se{sub 2}, polycrystalline-thin-film solar cells using techniques that can be scaled-up for economic manufacture on a large scale. The aims are to fabricate CdTe solar cells using Cd and Te layers sputtered from elemental targets; to promote the interdiffusion between Cd/Te layers, CdTe phase formation, and gr… more
Date: August 1, 1994
Creator: Dhere, N. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Commercial production of thin-film CdTe photovoltaic modules. 1995 annual report

Description: This report presents a general overview of progress made in Golden Photon Inc.`s commercial production of thin-film CdTe photovoltaic modules. It describes the improvement in the number of batch runs processed through substrate deposition, all inter-connection, and encapsulation process steps; a progressive increase in the total number of panels processed each month; an improvement in cumulative process yields; and the continual attention given to modifying operating parameters of each major pr… more
Date: February 1, 1997
Creator: Brog, T.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thin film cadmium telluride photovoltaic cells. Annual subcontract report, 23 July 1990--31 October 1991

Description: This report describes research to develop to vacuum-based growth techniques for CdTe thin-film solar cells: (1) laser-driven physical vapor deposition (LDPVD) and (2) radio-frequency (rf) sputtering. The LDPVD process was successfully used to deposit thin films of CdS, CdTe, and CdCl{sub 2}, as well as related alloys and doped semiconductor materials. The laser-driven deposition process readily permits the use of several target materials in the same vacuum chamber and, thus, complete solar cell… more
Date: April 1, 1992
Creator: Compaan, A. & Bohn, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Rapid Deposition Technology Holds the Key for the World's Largest Manufacturer of Thin-Film Solar Modules (Fact Sheet)

Description: First Solar, Inc. has been collaborating with NREL since 1991, advancing its thin-film cadmium telluride solar technology to grow from a startup company to become one of the world's largest manufacturers of solar modules, and the world's largest manufacturer of thin-film solar modules.
Date: August 1, 2013
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Strategies for recycling CdTe photovoltaic modules

Description: Recycling end-of-life cadmium telluride (CdTe) photovoltaic (PV) modules may enhance the competitive advantage of CdTe PV in the marketplace, but the experiences of industries with comparable Environmental, Health and Safety (EH&S) challenges suggest that collection and recycling costs can impose significant economic burdens. Customer cooperation and pending changes to US Federal law may improve recycling economics.
Date: December 31, 1994
Creator: Eberspacher, C.; Gay, C. F. & Moskowitz, P. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Processing and modeling issues for thin-film solar cell devices. Annual subcontract report, January 16, 1993--January 15, 1994

Description: The overall objective of the research presented in this report is to advance the development and acceptance of thin-film photovoltaic modules by increasing the understanding of film growth and processing and its relationship to materials properties and solar cell performance. The specific means toward meeting this larger goal include: (1) investigating scalable, cost-effective deposition processes; (2) preparing thin-film materials and device layers and completed cell structures; (3) performing… more
Date: September 1, 1994
Creator: Birkmire, R. W.; Phillips, J. E.; Buchanan, W. A.; Hegedus, S. S.; McCandless, B. E.; Shafarman, W. N. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of high-efficiency, thin-film CdTe solar cells. Annual subcontract report, January 1, 1993--December 31, 1993

Description: Polycrystalline thin film CdTe solar cells are one of the leading candidates for terrestrial photovoltaic applications. Theoretical calculations project an efficiency of 27% for single crystal, single junction CdTe cells, and the practically achievable efficiency for polycrystalline CdTe cells is 18-20%. Polycrystalline CdTe cells made by different groups show a significant variation in short circuit currents, open circuit voltages, and cell efficiencies. A better understanding of carrier loss … more
Date: September 1, 1994
Creator: Rohatgi, A.; Chou, H. C.; Kamra, S. & Bhat, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Annual Report: Photovoltaic Subcontract Program FY 1991

Description: This report summarizes the fiscal year (FY) 1991 (October 1, 1990, through September 30, 1991) progress of the subcontracted photovoltaic (PV) research and development (R&D) performed under the Photovoltaic Advanced Research and Development Project at the National Renewable Energy Laboratory (NREL)-formerly the Solar Energy Research Institute (SERI). The mission of the national PV program is to develop PV technology for large-scale generation of economically competitive electric power in the Un… more
Date: March 1, 1992
Creator: Summers, K. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Polycrystalline thin film materials and devices. Annual subcontract report, 16 January 1990--15 January 1991

Description: Results and conclusion of Phase I of a multi-year research program on polycrystalline thin film solar cells are presented. The research comprised investigation of the relationships among processing, materials properties and device performance of both CuInSe{sub 2} and CdTe solar cells. The kinetics of the formation of CuInSe{sub 2} by selenization with hydrogen selenide was investigated and a CuInSe{sub 2}/CdS solar cell was fabricated. An alternative process involving the reaction of deposited… more
Date: November 1, 1991
Creator: Baron, B. N.; Birkmire, R. W.; Phillips, J. E.; Shafarman, W. N.; Hegedus, S. S. & McCandless, B. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Polycrystalline thin films FY 1992 project report

Description: This report summarizes the activities and results of the Polycrystalline Thin Film Project during FY 1992. The purpose of the DOE/NREL PV (photovoltaic) Program is to facilitate the development of PV that can be used on a large enough scale to produce a significant amount of energy in the US and worldwide. The PV technologies under the Polycrystalline Thin Film project are among the most exciting ``next-generation`` options for achieving this goal. Over the last 15 years, cell-level progress ha… more
Date: January 1, 1993
Creator: Zweibel, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Role of polycrystallinity in CdTe and CuInSe{sub 2} photovoltaic cells. Annual subcontract report, 1 April 1990--31 March 1991

Description: The polycrystalline nature of thin-film CdTe and CuInSe{sub 2} solar cells continues to be a major factor in several individual losses that limit overall cell efficiency. This report describes progress in the quantitative separation of these losses, including both measurement and analysis procedures. It also applies these techniques to several individual cells to help document the overall progress with CdTe and CuInSe{sub 2} cells. Notably, CdTe cells from Photon Energy have reduced window phot… more
Date: December 31, 1991
Creator: Sites, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Safety of Photovoltaics: National Center for Photovoltaics PV FAQs (Fact Sheet)

Description: This FAQ sheet explains that photovoltaic technologies are safe. They have far fewer risks and environmental impacts than conventional sources of energy. Nonetheless, there are some environmental, safety, and health challenges associated with making, using, and disposing of solar cells. This sheet discusses the safety of today's technologies of silicon, amorphous silicon, copper indium diselenide, and cadmium telluride.
Date: June 1, 1999
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

High-efficiency thin-film cadmium telluride photovoltaic cells. Annual technical report, January 20, 1996--January 19, 1997

Description: The University of Toledo photovoltaics group has been instrumental in developing rf sputtering for CDs/CdTe thin-film solar cells. During the third phase of the present contract our work focussed on efforts to determine factors which limit the efficiency in our {open_quotes}all-sputtered{close_quotes} thin-film CdTe solar cells on soda-lime glass. We find that our all-sputtered cells, which are deposited at substantially lower temperature than those by sublimation or vapor deposition, require l… more
Date: August 1, 1997
Creator: Compaan, A. D.; Bohn, R. G. & Contreras-Puente, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Specific PVMaT R and D in CdTe product manufacturing: Phase 1 annual report, 5 May 1998--4 May 1999

Description: This report documents the work performed by First Solar, LLC, during the first year of this Photovoltaic Manufacturing Technology (PVMaT) subcontract. The following milestones were successfully completed: (1) Initiate lamination development program by interviewing key suppliers and experts such as STR, Inc., ARRI, and automotive glass manufacturers; (2) Complete process specification for high-throughput laminator; (3) Initiate contact with module testing laboratory and complete preliminary modu… more
Date: March 1, 2000
Creator: Bohland, J.; Kormanyos, K.; Faykosh, G.; Champion, V.; Cox, S.; McCarthur, M. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Polycrystalline thin film cadmium telluride solar cells fabricated by electrodeposition. Annual subcontract report, 20 March 1993--19 March 1994

Description: This report describes the principal results of work performed during the second year of a 3-year program at the Colorado School of Mines (CSM). The work on transparent conducting oxides was carried out primarily by CSM students at NREL and is described in three publications listed in Appendix C. The high-quality ZnO produced from the work was incorporated into a copper indium diselenide cell that exhibited a world-record efficiency of 16.4%. Much of the time was devoted to the improvement of ca… more
Date: July 1994
Creator: Trefny, J. U.; Furtak, T. E.; Williamson, D. L. & Kim, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A novel manufacturing process for fabricating CdS/CdTe polycrystalline thin-film solar cells

Description: There are several production disadvantages inherent in conventional SnO{sub 2}/CdS/CdTe manufacturing processes. In this paper, the authors report a novel manufacturing process for fabricating polycrystalline Cd{sub 2}SnO{sub 4}/Zn{sub 2}SnO{sub 4}/CdS/CdTe thin-film solar cells that yielded a CdS/CdTe device with an NREL-confirmed efficiency of 14.0%. This process addresses undesirable manufacturing issues such as time-consuming and expensive heat-up and cool-down processes and generation of l… more
Date: May 15, 2000
Creator: Wu, X. & Sheldon, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen