>35%5-junction space solar cells based on the direct bonding technique  

作　　者：Xinyi Li Ge Li Hongbo Lu Wei Zhang 

机构地区：[1]Shanghai Institute of Space Power-sources,Shanghai 200245,China

出　　处：《Journal of Semiconductors》2021年第12期29-34,共6页半导体学报（英文版）

基　　金：supported by the National Nature Science Foundation of China(Grant No.62004126);Shanghai Rising-Star Program(Grant No.19QB1403800).

摘　　要：Multijunction solar cells are the highest efficiency photovoltaic devices yet demonstrated for both space and terrestrial applications.In recent years five-junction cells based on the direct semiconductor bonding technique(SBT),demonstrates space efficiencies>35%and presents application potentials.In this paper,the major challenges for fabricating SBT 5J cells and their appropriate strategies involving structure tunning,band engineering and material tailoring are stated,and 4-cm235.4%(AM0,one sun)5J SBT cells are presented.Further efforts on detailed optical managements are required to improve the current generating and matching in subcells,to achieve efficiencies 36%-37%,or above.

关 键 词：Ⅲ-Ⅴ MULTIJUNCTION solar cells high efficiency semiconductor bonding 

分 类 号：TM914.4[电气工程—电力电子与电力传动]