Title :
Angle of incidence corrections for GaAs/Ge solar cells with low absorptance coverglass
Author :
Burger, Dale R. ; Mueller, Robert L. ; Goodelle, George ; Powe, Joseph ; Schwartz, Joel
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
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
Keywords :
III-V semiconductors; aerospace simulation; elemental semiconductors; gallium arsenide; germanium; optical filters; photovoltaic power systems; semiconductor device models; solar cells; space vehicle power plants; Fresnel correction; GaAs-Ge; GaAs-Ge solar cells; angle of incidence corrections; anti-reflection filter; blue reflection filter; cell response prediction; cosine correction; coverglass; incidence angle; incidence performance; infrared reflection filter; space power; Fresnel reflection; Gallium arsenide; Laboratories; Optical filters; Optical reflection; Optical refraction; Optical surface waves; Photovoltaic cells; Space technology; Space vehicles;
Conference_Titel :
Photovoltaic Specialists Conference, 1996., Conference Record of the Twenty Fifth IEEE
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-3166-4
DOI :
10.1109/PVSC.1996.563992
