InGaP/GaAs/Ge multi-junction solar cell efficiency improvements using epitaxial germanium

被引：21

作者：

Aiken, DJ ^{[1
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

CONFERENCE RECORD OF THE TWENTY-EIGHTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2000 | 2000年

关键词：

D O I：

10.1109/PVSC.2000.916053

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：

Triple junction InGaP/GaAs/Ge solar cells are highly current mismatched due to the excess current generating capability of the germanium subcell. This severe current mismatch invites new approaches for increasing performance beyond that of current triple junctions. Presented here are two approaches for improving the efficiency of III-V multi-junctions beyond that of current triple junction technology. Both of these approaches involve the use of thin epitaxial germanium and do not require the development of new similar to 1eV photovoltaic materials. The theoretical AM0 efficiency is over 30%. Modeling suggests the potential for over 1.5% absolute efficiency gain with respect to current InGaP/GaAs/Ge triple junction solar cells.

引用

页码：994 / 997

页数：4

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