"Физика и техника полупроводников"
Издателям
Вышедшие номера
Japan programs on novel concepts in PV
Yamaguchi Masafumi1, Takamoto Tatsuya2, Araki Kenji3, Imaizumi Mitsuru4
1Toyota Technological Institute, 2-12 Hisakata, Tempaku, Nagoya 46, Japan
2Sharp Corporation, Hajikami, Shinjo, Nara 63, Japan
3Daido Steel Corporation, Daido-cho, Minami, Nagoya 45, Japan
4NASDA, Sengen, Tsukuba, Ibaraki 30, Japan
Поступила в редакцию: 9 февраля 2004 г.
Выставление онлайн: 21 июля 2004 г.

Japanese R\&D activities in photovoltaics (PV) and our R\&D activities of III--V compound multijunction (MJ) solar cells are presented. We have realized high-efficiency InGaP/InGaAs 3-junction solar cells with an efficiency of 36.5--37% (AM1.5G, 200 suns) and concentrator 3-junction solar cell modules of an outdoor efficiency of 27% as a result of designing grid structure, developing low optical loss Fresnel lens and homogenizers, and designing low thermal conductivity modules. We are now challenging to develop low-cost and high output power concentrator MJ solar cell modules with an output power of 400 W/m2 for terrestrial applications.
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