Improved Radiation Resistance of Epitaxial Lift-Off Inverted Metamorphic Solar Cells

被引：0

作者：

Adams, Jessica G. J. ^{[1
]}

Elarde, Victor C. ^{[1
]}

Hillier, Glen ^{[1
]}

Stender, Christopher ^{[1
]}

Tuminello, Francis ^{[1
]}

Wibowo, Andree ^{[1
]}

Youtsey, Chris ^{[1
]}

Bittner, Zachary ^{[2
]}

Hubbard, Seth M. ^{[2
]}

Clark, Eric B. ^{[3
]}

Piszczor, Michael F. ^{[3
]}

Osowski, Mark ^{[1
]}

机构：

[1] MicroLink Devices, Niles, IL 60714 USA

[2] Rochester Inst Technol, Rochester, NY 14623 USA

[3] NASA, Glenn Res Ctr, Cleveland, OH 44135 USA

来源：

2013 IEEE 39TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) | 2013年

关键词：

Multi-junction; III-V; Radiation Resistance; Space Solar Cell; Inverted Metamorphic; Epitaxial Lift-Off;

D O I：

暂无

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 inverted metamorphic (IMM) solar cell has a high specific power compared to traditional germanium-based multi-junction solar cells, which may prove beneficial for space applications where costs are weight-driven. In addition, the mechanical flexibility of the IMM cell may be beneficial for new technologies, such as high-power, flexible, deployable arrays currently under development. However, IMM solar cells have not yet demonstrated radiation resistance equal to that of traditional Ge-based multi-junction cells, largely due to degradation in the In GaAs bottom subcell. A structure and process have been developed to incorporate a back surface reflector on the epitaxial lift-off (ELO) IMM solar cell, permitting the In GaAs subcell to be thinned whilst maintaining high optical absorption. The thinner subcell can better tolerate degraded base diffusion lengths following irradiation. In this manner, a significant improvement in the end of life efficiency of ELO IMM solar cells is demonstrated following irradiation with 1 MeV electrons at a fluence of 1x10(15) cm(-2).

引用

页码：3229 / 3232

页数：4

共 4 条

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[2] [Anonymous], 2010, IEEE 35 PHOT SPEC C
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Ahrenkiel, SP
Ahrenkiel, RK
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Geisz, JF
Kurtz, S
Moriarty, T
Wehrer, WJ
Wernsman, B
[J]. CONFERENCE RECORD OF THE THIRTY-FIRST IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2005, 2005, : 530 - 535
[4] Wilt D., 2009, PHOT SPEC C PVSC 200

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