多接合型化合物半導体太陽電池の現状と将来展望(<特集>次世代太陽電池)

概要

論文の詳細を見る
III-V compound multi-junction solar cells have great potential of power generation for space and terrestrial applications, since they have high conversion efficiencies over 30%, which is the maximum conversion efficiency obtained by a single junction solar cell. So far, 36.9% conversion efficiency under the one sun, and 43.5% under 400 concentrated light have been achieved by the three junction tandem solar cells. In order to realize the next generation multi-junction solar cells with super high efficiencies over 45%, we are studying the lattice match four junction solar cells using new materials such as InGaAsN and the lattice mismatched three junction solar cells. This paper reviews the recent technologies and materials for multi-junction solar cells with super high efficiencies.
2012-05-20