18.3% efficient silicon solar cells for space applications
Conference
·
OSTI ID:304435
- SunPower Corp., Sunnyvale, CA (United States)
In this paper the authors report on the development of high-efficiency silicon solar cells designed specifically for space applications. The cells are the 100 {micro}m thin N{sup +}-P-P{sup +} and are 2 x 4 cm in size. The front side surface is textured with inverted pyramids and received a double layer anti-reflection coating (ARC). They also have a back surface field (BSF) and a back surface reflector (BSR). Both front and back diffusions are optimized for radiation hardness. The best beginning of life (BOL) efficiencies of these thin (100 {micro}m) 2 cm x 4 cm cells have been measured at JPL to be 18.3%. The best end of life (EOL) efficiencies after 1MeV 1E15 electrons is 12.1%.
- OSTI ID:
- 304435
- Report Number(s):
- CONF-970953--
- Country of Publication:
- United States
- Language:
- English
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