Combined Effects of Shunt and Luminescence Coupling on External Quantum Efficiency Measurements of Multijunction Solar Cells

被引：44

作者：

Li, Jing-Jing ^{[1
,2
]}

Lim, Swee Hoe ^{[1
,2
]}

Allen, Charles R. ^{[1
,2
]}

Ding, Ding ^{[1
,2
]}

Zhang, Yong-Hang ^{[1
,2
]}

机构：

[1] Arizona State Univ, Ctr Photon Innovat, Tempe, AZ 85287 USA

[2] Arizona State Univ, Sch Elect Comp & Energy Engn, Tempe, AZ 85287 USA

来源：

IEEE JOURNAL OF PHOTOVOLTAICS | 2011年 / 1卷 / 02期

基金：

美国国家科学基金会;

关键词：

Luminescence coupling; multi-junction solar cells; quantum efficiency; shunt;

D O I：

10.1109/JPHOTOV.2011.2172188

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：

The combined effects of shunt and luminescence coupling on the measurement artifact of external quantum efficiency (EQE) of multi-junction solar cells are studied. The EQE measurement artifact is modeled using DC and small-signal equivalent circuits under voltage and light bias conditions. The modeling results are verified with EQE measurements of a Ge bottom cell of a triple-junction solar cell. It is found that the optimal bias light intensity to minimize the EQE measurement artifact is the result of the tradeoff between the shunt and the luminescence coupling effects.

引用

页码：225 / 230

页数：6

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