Present and future of high efficiency multi-junction solar cells


This paper reviews our research activities for III-V compound multi-junction (MJ) solar cells and recent R&D topics on concentrator MJ solar cells under the NEDO's R&D Project on Innovative Solar Cells initiated since 2008. The conversion efficiency of InGaP/(In)GaAs/InGaAs triple-junction solar cells has been improved to 35.8% (1-sun, AM1.5G) and… (More)


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