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Proceedings Paper

Optical properties of PV backsheets: key indicators of module performance and durability
Author(s): Thomas C. Felder; William J. Gambogi; James G. Kopchick; R. Scott Peacock; Katherine M. Stika; T. John Trout; Alexander Z. Bradley; Babak Hamzavytehrany; Abdulkerim Gok; Roger H. French; Oakland Fu; Hongjie Hu
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Paper Abstract

Polymeric backsheets are an important component affecting the performance and durability of photovoltaic modules. The optical properties of the backsheet should be considered in the design and performance of a photovoltaic module and the stability and durability of optical properties have an impact on power, safety and appearance. Changes in optical properties in fielded modules and accelerated durability testing are compared. IR analysis was conducted on various backsheet materials in accelerated durability testing and compared to outdoor performance to better understand the relevant chemical changes and associated degradation mechanisms. The connection between optical properties and chemical changes is discussed.

Paper Details

Date Published: 8 October 2014
PDF: 6 pages
Proc. SPIE 9179, Reliability of Photovoltaic Cells, Modules, Components, and Systems VII, 91790P (8 October 2014); doi: 10.1117/12.2062063
Show Author Affiliations
Thomas C. Felder, DuPont (United States)
William J. Gambogi, DuPont (United States)
James G. Kopchick, DuPont (United States)
R. Scott Peacock, DuPont (United States)
Katherine M. Stika, DuPont (United States)
T. John Trout, DuPont (United States)
Alexander Z. Bradley, DuPont (United States)
Babak Hamzavytehrany, DuPont (United States)
Abdulkerim Gok, Case Western Reserve Univ. (United States)
Roger H. French, Case Western Reserve Univ. (United States)
Oakland Fu, DuPont (China) Research & Development and Management Co., Ltd. (China)
Hongjie Hu, DuPont (China) Research & Development and Management Co., Ltd. (China)

Published in SPIE Proceedings Vol. 9179:
Reliability of Photovoltaic Cells, Modules, Components, and Systems VII
Neelkanth G. Dhere, Editor(s)

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