Alternative PV module encapsulation materials and schemes

Journal Article · Mon Jan 01 04:00:00 EST 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.49387· OSTI ID:450136

Pern, F J; Glick, S H; Czanderna, A W; DeBlasio, R ^[1]

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1. Photovoltaics Division, National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401 (United States)

The stabilization effects of various superstrate materials against UV-induced EVA discoloration and the effect of photocurrent enhancement by white light-reflecting substrates are summarized. Based on the results, some alternative PV module encapsulation schemes are proposed for improved module performance, where the current or modified formulations of EVA encapsulants still can be used so that the typical processing tools and conditions need not to be changed significantly. The schemes are designed in an attempt to eliminate or minimize the EVA yellow-browning and to increase the module power output. Four key experimental results from the studies of EVA discoloration and encapsulation are to employ: (1) UV-absorbing (filtering) glasses as superstrates to protect EVA from UV-induced discoloration, (2) gas-permeable polymer films as superstrates and/or substrates to prevent EVA yellowing by permitting photobleaching reactions, (3) modified EVA formulations, and (4) internal reflection of the light by white substrates. {copyright} {ital 1996 American Institute of Physics.}

• Research Organization: National Renewable Energy Laboratory
• DOE Contract Number: AC36-83CH10093
• OSTI ID: 450136
• Report Number(s): CONF-9605265--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 353; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
EFFICIENCY
ELECTRIC CONDUCTIVITY
ENCAPSULATION
PHOTOCURRENTS
PHOTOVOLTAIC CELLS
SILICON
SOLAR CELL ARRAYS