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Assessment of Present State-of-the-Art Sawing Technology of Large Diameter Ingots for Solar Sheet Material. First Quarterly Report, September 1--November 30, 1977.

Description: The objective of this program is to assess the present state-of-the-art saving technology of large diameter silicon ingots (3" and 4" diameter) for solar sheet materials.
Date: November 30, 1977
Creator: Yoo, H. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Conceptual Design and Systems Analysis of Photovoltaic Power Systems. Final Report. Volume 4. Nontechnical Issues

Description: This volume contains a description of the investigation of nontechnical issues relating to solar photovoltaic energy systems performed on the contract entitled, "Conceptual Design and System Analysis of Solar Photovoltaic Power Systems, sponsored by the Energy Research and Development Administration.
Date: July 1, 1977
Creator: Pittman, P. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Retrospective on the Seniors' Council Tier 1 LDRD portfolio.

Description: This report describes the Tier 1 LDRD portfolio, administered by the Seniors Council between 2003 and 2011. 73 projects were sponsored over the 9 years of the portfolio at a cost of $10.5 million which includes $1.9M of a special effort in directed innovation targeted at climate change and cyber security. Two of these Tier 1 efforts were the seeds for the Grand Challenge LDRDs in Quantum Computing and Next Generation Photovoltaic conversion. A few LDRDs were terminated early when it appeared cl… more
Date: April 1, 2012
Creator: Ballard, William Parker
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research on advanced photovoltaic manufacturing technology. Final subcontract report, March 1, 1991--June 4, 1991

Description: This report outlines opportunities for significantly advancing the scale and economy of high-volume manufacturing of high-efficiency photovoltaic (PV) modules. We propose to pursue a concurrent effort to advance existing crystalline silicon module manufacturing technology and to implement thin film CuInSe{sub 2} (CIS) module manufacturing. This combination of commercial-scale manufacturing of high-efficiency crystalline silicon modules and of pilot-scale manufacturing of low-cost thin film CIS … more
Date: November 1, 1991
Creator: Jester, T. & Eberspacher, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Photovoltaic battery & charge controller market & applications survey. An evaluation of the photovoltaic system market for 1995

Description: Under the sponsorship of the Department of Energy, Office of Utility Technologies, the Battery Analysis and Evaluation Department and the Photovoltaic System Assistance Center of Sandia National Laboratories (SNL) initiated a U.S. industry-wide PV Energy Storage System Survey. Arizona State University (ASU) was contracted by SNL in June 1995 to conduct the survey. The survey included three separate segments tailored to: (a) PV system integrators, (b) battery manufacturers, and (c) PV charge con… more
Date: December 1, 1996
Creator: Hammond, Robert L.; Turpin, Jane F. & Corey, Garth P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The role of point defects and defect complexes in silicon device processing. Summary report and papers

Description: This report is a summary of a workshop hold on August 24--26, 1992. Session 1 of the conference discussed characteristics of various commercial photovoltaic silicon substrates, the nature of impurities and defects in them, and how they are related to the material growth. Session 2 on point defects reviewed the capabilities of theoretical approaches to determine equilibrium structure of defects in the silicon lattice arising from transitional metal impurities and hydrogen. Session 3 was devoted … more
Date: August 1, 1994
Creator: Sopori, B. & Tan, T. Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Crystalline silicon processing

Description: This presentation (consisting of vugraphs) first provides the background motivation for Sandia`s effort for the development of improved crystalline silicon solar cells. It then discusses specific results and progress, and concludes with a brief discussion of options for next year.
Date: July 13, 1994
Creator: Basore, P. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Crystalline-silicon photovoltaics: Necessary and sufficient

Description: Photovoltaic (PV) energy systems have always been dominated by crystalline-silicon (c-Si) technology, and recent developments persuasively suggest that c-Si will continue to be the dominant technology well into the next century. The authors explain why c-Si technology is fairing much better than previously expected, and discuss the impact of improvements currently under development. They use a ground-up, engineering-based approach to predict the expected evolution of this type of PV system, and… more
Date: January 1, 1995
Creator: Basore, P. A. & Gee, J. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Proceedings of the twenty-first DOE solar photochemistry research conference

Description: 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 str… more
Date: June 1, 1997
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Silicon float-zone crystal growth as a tool for the study of defects and impurities

Description: Because of its ability to produce silicon crystals of exceptionally high purity and crystallographic perfection, the float-zone method lends itself to use as a tool for the controlled study of deliberately introduced defects and impurities in Si crystals and their effects on materials properties such as minority charge-carrier lifetime or photovoltaic conversion efficiency. Some examples of such studies are presented here. Defects the authors have studied include grain size, dislocations, swirl… more
Date: June 20, 2000
Creator: Ciszek, T. F. & Wang, T. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Final technical report, Phase 1, Photovoltaic manufacturing technology. Final subcontract report, 9 January 1991--14 April 1991

Description: A development/manufacturing program is described for achieving photovoltaic modules at a cost less than $.50/Watt and solar generating fields at a total installed system cost of less than $1.50/Watt. The basic approach is to construct a fully automated continuous production line based on close spaced sublimation (CSS) deposition of CdTe to produce 60 cm x 120 cm thin-film PV modules. The high deposition rate possible with CSS opens up the possibility of obtaining very high throughput in the ran… more
Date: November 1, 1991
Creator: Brown, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The role of point defects and defect complexes in silicon device processing. Summary report and papers

Description: This report is the summary of the third workshop on the role of point defects and defect complexes in silicon device processing. The workshop was organized: (1) to discuss recent progress in the material quality produced by photovoltaic Si manufacturers, (2) to foster the understanding of point defect issues in Si device processing, (3) to review the effects of inhomogeneities on large- area solar cell performance, (4) to discuss how to improve Si solar cell processing, and (5) to develop a new… more
Date: August 1, 1994
Creator: Sopori, B. & Tan, T. Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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GaAsSb-based heterojunction tunnel diodes for tandem solar cell interconnects

Description: We report a new approach to tunnel junctions that employs a pseudomorphic GaAsSb layer to obtain a band alignment at a InGaAs or InAlAs p-n junction favorable for forward bias tunneling. Since the majority of the band offset between GaAsSb and InGaAs or InAlAs is in the valence band, when an GaAsSb layer is placed at an InGaAs or InAlAs p-n junction the tunneling distance is reduced and the tunneling current is increased. For all doping levels studied, the presence of the GaAsSb-layer enhanced … more
Date: January 1, 1995
Creator: Zolper, J. C.; Klem, J. F.; Plut, T. A. & Tigges, C. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Photovoltaic Manufacturing Technology Program. Final subcontract report, 9 January 1991--14 April 1991

Description: The work performed in this contract was focused on two areas: an economic analysis of present manufacturing methods and the conceptualization of advanced equipment. The economic analysis was built on our experience with tabbing and connecting thick cells. This experience was used to generate the cost analysis that clearly points to the improvements in yield and throughput to make PV manufacturing more cost effective. 3 refs.
Date: November 1, 1991
Creator: Hogan, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Progress update on the US photovoltaic manufacturing technology project

Description: The Photovoltaic Manufacturing Technology (PVMaT) project is helping the U.S. photovoltaic (PV) industry extend its world leadership role in manufacturing and stimulate the commercial development of PV modules and systems. Initiated in 1990, PVMaT is being carried out in several directed and staggered phases to support industry`s continued progress. Thirteen subcontracts awarded in FY 1996 under Phase 4A emphasize improvement and cost reduction in the manufacture of full-system PV products. Are… more
Date: October 1, 1997
Creator: Mitchell, R. L.; Witt, C. E. & Thomas, H. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Role of point defects/defect complexes in silicon device processing. Book of abstracts, fourth workshop

Description: The 41 abstracts are arranged into 6 sessions: impurities and defects in commercial substrates: their sources, effects on material yield, and material quality; impurity gettering in silicon: limits and manufacturability of impurity gettering and in silicon solar cells; impurity/defect passivation; new concepts in silicon growth: improved initial quality and thin films; and silicon solar cell design opportunities.
Date: June 1, 1994
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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