The effects of concentrated ultraviolet light on high-efficiency silicon solar cells

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The importance of stability in the performance of solar cells is clearly recognized as fundamental. Some of the highest efficiency silicon solar cells demonstrated to date, such as the Point Contact solar cell and the Passivated Emitter solar cell, rely upon the passivation of cell surfaces in order to minimize recombination, which reduces cell power output. Recently, it has been shown that exposure to ultraviolet (UV) light of wavelengths present in the terrestrial solar spectrum can damage a passivating silicon-oxide interface and increase recombination. In this study, we compared the performance of Point Contact and Passivated Emitter solar cells after ... continued below

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Pages: (8 p)

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Ruby, D.S. & Schubert, W.K. January 1, 1991.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

The importance of stability in the performance of solar cells is clearly recognized as fundamental. Some of the highest efficiency silicon solar cells demonstrated to date, such as the Point Contact solar cell and the Passivated Emitter solar cell, rely upon the passivation of cell surfaces in order to minimize recombination, which reduces cell power output. Recently, it has been shown that exposure to ultraviolet (UV) light of wavelengths present in the terrestrial solar spectrum can damage a passivating silicon-oxide interface and increase recombination. In this study, we compared the performance of Point Contact and Passivated Emitter solar cells after exposure to UV light. We also examined the effect of UV exposure on oxide-passivated silicon wafers. We found that current Passivated Emitter designs are stable at both one-sun and under concentrated sunlight. The evolution of Point Contact concentrator cell performance shows a clear trend towards more stable cells. 15 refs., 18 figs.

Physical Description

Pages: (8 p)

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OSTI; NTIS; GPO Dep.

Source

  • 22. IEEE photovoltaic specialists conference, Las Vegas, NV (United States), 7-11 Oct 1991

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  • Other: DE92000980
  • Report No.: SAND-91-0433C
  • Report No.: CONF-911055--2
  • Grant Number: AC04-76DP00789
  • Office of Scientific & Technical Information Report Number: 5301844
  • Archival Resource Key: ark:/67531/metadc1070386

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1991

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  • Feb. 4, 2018, 10:51 a.m.

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  • May 16, 2018, 1:38 p.m.

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Ruby, D.S. & Schubert, W.K. The effects of concentrated ultraviolet light on high-efficiency silicon solar cells, article, January 1, 1991; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc1070386/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.