Flight degradation data of GaAs-on-Si solar cells mounted on highly irradiated ETS-VI

被引:4
作者
Imaizumi, M [1 ]
Anzawa, O [1 ]
Matsuda, S [1 ]
Yamaguchi, M [1 ]
Ohara, T [1 ]
机构
[1] Natl Space Dev Agcy Japan, NASDA, Tsukuba, Ibaraki 3058505, Japan
来源
CONFERENCE RECORD OF THE TWENTY-EIGHTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2000 | 2000年
关键词
D O I
10.1109/PVSC.2000.916073
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Flight data of GaAs space solar cells fabricated on Si substrates (GaAs/Si) are analyzed by comparing with the data of GaAs cells on GaAs substrates (GaAs/GaAs). The initial performance of the GaAs/Si cells is comparable to the GaAs/GaAs cells. Both types of cells are mounted on the body of the ETS-VI satellite, which has been highly irradiated due to its anomalous orbit. The cells are estimated to be irradiated about similar to 10(16)cm(-2) level of equivalent 1 MeV electrons at the end of the flight data collection. The independence of the radiation hardness of GaAs/Si cells with respect to the thickness of the cover glass has been shown from the flight data. Also, better performance of GaAs/Si cells compared to GaAs/GaAs cells has observed in the case when a thin (50 mum) cover glass is used and the cells are highly irradiated. The characteristics of the GaAs/Si cells, in addition to taking advantage of its light-weight substrate, are considered to be effective advantage for space missions.
引用
收藏
页码:1075 / 1078
页数:4
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