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Strength of Si Wafers with Microcracks: A Theoretical Model; Preprint

Description: This paper concentrates on the modeling of the strength of photovoltaic (PV) wafers. First a multimodal Weibull distribution is presented for the strength of a silicon specimen with bulk, surface, and edge imperfections. Next, a specific case is analyzed of a PV wafer with surface damage that takes the form of subsurface microcracks.
Date: May 1, 2008
Creator: Rupnowski, P. & Sopori, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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High-Efficiency Amorphous Silicon and Nanocrystalline Silicon-Based Solar Cells and Modules: Final Technical Progress Report, 30 January 2006 - 29 January 2008

Description: United Solar Ovonic successfully used its spectrum-splitting a-Si:H/a-SiGe:H/a-SiGe:H triple-junction structure in their manufacturing plants, achieving a manufacturing capacity of 118 MW in 2007, and set up a very aggressive expansion plan to achieve grid parity.
Date: May 1, 2008
Creator: Guha, S. & Yang, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advanced Large Area Plastic Scintillator Project (ALPS): Final Report

Description: The advanced Large-Area Plastic Scintillator (ALPS) Project at Pacific Northwest National Laboratory investigated possible technological avenues for substantially advancing the state-of-the-art in gamma-ray detection via large-area plastic scintillators. The three predominant themes of these investigations comprised the following: * Maximizing light collection efficiency from a single large-area sheet of plastic scintillator, and optimizing hardware event trigger definition to retain detection … more
Date: February 5, 2008
Creator: Jordan, David V.; Reeder, Paul L.; Todd, Lindsay C.; Warren, Glen A.; McCormick, Kathleen R.; Stephens, Daniel L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Polymer Hybrid Photovoltaics for Inexpensive Electricity Generation: Final Technical Report, 1 September 2001--30 April 2006

Description: The project goal is to understand the operating mechanisms underlying the performance of polymer hybrid photovoltaics to enable the development of a photovoltaic with a maximum power conversion efficiency over cost ratio that is significantly greater than current PV technologies. Plastic or polymer-based photovoltaics can have significant cost advantages over conventional technologies in that they are compatible with liquid-based plastic processing and can be assembled onto plastic under atmosp… more
Date: July 1, 2006
Creator: Carter, S. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

High-Transparency Sputtered In2O3 and ITO Films Containing Zirconium

Description: Our recent investigations have identified a method to produce ITO-like films that are less sensitive to variations in the oxygen-containing deposition ambient. Specifically, we are studying the effect of adding small amounts of Zr to both In2O3 and ITO ceramic sputtering targets.
Date: October 1, 2007
Creator: Gessert, T. A.; Yoshida, Y.; Fesenmaier, C. C. & Coutts, T. J.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
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Role of Polycrystalline Thin-Film PV Technologies for Achieving Mid-Term Market-Competitive PV Modules

Description: This paper reviews the current commercial status of CuInSe2 alloys (collectively, CIS) and CdTe-based photovoltaic (PV) modules, comparing the performance of commercial products with the results achieved for solar cell and prototype module champions. We provide an update for these PV cell and module technologies, and also compare CIS and CdTe performance levels to the results achieved by the crystalline Si PV industry. This comparison shows that CIS and CdTe module technology presently offers t… more
Date: February 1, 2005
Creator: von Roedern, B.; Zweibel, K. & Ullal, H. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Advanced CIGS Photovoltaic Technology: Final Subcontract Report, 15 November 2001--13 February 2005

Description: The principal objective of Energy Photovoltaics, Inc., is to develop the best CIGS large-area module process based on capability of implementation on EPV's large-scale processing equipment. The first requirement was to develop recipes for CIGS, junction formation, and a high-quality ZnO window that together are capable of producing small-area devices with efficiencies in excess of 13%. The second requirement was to significantly improve the uniformity of all layers (Mo, CIGS, CdS, and ZnO) on l… more
Date: August 1, 2005
Creator: Delahoy, A. E. & Chen, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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