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Photon degradation of AlGaAs/GaAs solar cellsThe behavior of GaAs solar cells after photon illumination for a prolonged exposure time is presented. More than 55 OMCVD AlGaAs/GaAs solar cells were exposed for over 400 h to AM0 photons at 28 C in three separate, well-controlled runs. Significant degradation of solar cell efficiency was observed in two out of three runs. Although noticeable losses in the open-circuit voltage, fill factor, and maximum power were observed, no change in the short-circuit current was found. In one of the runs, no change was seen in either the test cells or the control cells. Each cell in this run was protected with a coverglass. The cells in this run had thicker buffer layers and thinner window layers than the cells in the other two runs.
Document ID
19900027896
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Anspaugh, Bruce
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kachare, Ram
(JPL Pasadena, CA, United States)
Iles, Peter
(Applied Solar Energy Corp. City of Industry, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
Energy Production And Conversion
Accession Number
90A14951
Distribution Limits
Public
Copyright
Other

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