Angle of incidence corrections for GaAs/Ge solar cells with low absorptance coverglass

A total of four different types of coverglass/filter combinations were tested over a 0 to 85 degree angle of incidence range. One group of cells was irradiated to provide additional data. A predicted cell response was calculated using the cosine and Fresnel corrections. A comparison of measured vers...

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Bibliographic Details
Main Authors: Burger, D.R., Mueller, R.L., Goodelle, G., Powe, J., Schwartz, J.
Format: Conference Proceeding
Language:English
Subjects:
Fresnel reflection
Gallium arsenide
Laboratories
Optical filters
Optical reflection
Optical refraction
Optical surface waves
Photovoltaic cells
Space technology
Space vehicles
Online Access:Request full text
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Summary:A total of four different types of coverglass/filter combinations were tested over a 0 to 85 degree angle of incidence range. One group of cells was irradiated to provide additional data. A predicted cell response was calculated using the cosine and Fresnel corrections. A comparison of measured versus predicted values showed a good fit for blue reflection or anti-reflection (AR) filters. Both blue-red and infrared reflection filtered cells showed decreased output in the 40 to 80 degree range due to movement of filter IR band-edge into cell response range. Performance at very high incidence angles is still not fully understood. A special infrared filter was used which did not have an angle of incidence effect. Irradiation of cells improved angle of incidence performance for cells with infrared reflection filters.
ISSN:0160-8371
DOI:10.1109/PVSC.1996.563992