Solar array trades between very high-efficiency multi-junction and Si space solar cells

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Title: Solar array trades between very high-efficiency multi-junction and Si space solar cells

Author(s): Fatemi NS, Pollard HE, Hou HQ, Sharps PR

Book Group Author(s): IEEE; IEEE

Source: CONFERENCE RECORD OF THE TWENTY-EIGHTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2000

Book Series: IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE

Pages: 1083-1086

Published: 15/09/2000

References: 10

Conference Information: 28th IEEE Photovoltaic Specialists Conference ANCHORAGE, AK, SEP 15-22, 2000 IEEE; IEEE Electron Device Soc

Abstract: This paper describes a trade study between state-of-the-art, commercially-available very high-efficiency III-V multi-junction solar cells and advanced high-efficiency silicon cells at the bare cell and panel levels. The solar cell technologies in this comparison will be high-efficiency rad-hard 3-mil Si, dual-junction InGaP/GaAs (on Ge), and triple-junction InGaP/GaAs/Ge, with the beginning-of-life (BOL) efficiencies of 17%, 23%, and 26%, respectively. Two different typical orbits will be considered: geosyncronous (GEO) and low-earth (LEO) orbits. It will be assumed that the end-of-life (EOL) conditions for GEO and LEO will be equivalent to degradation due to 1-MeV electrons at 5E14 and 1E15 e/cm(2), respectively. Parameters critical to conventional rigid solar arrays such as specific power/mass (W/Kg), specific mass/area (Kg/m(2)), specific power/area (W/m(2)), and normalized end-of-life (EOL) $/W will be compared for these cell technologies.

Document Type: Proceedings Paper

Language: English

Reprint Address: Fatemi, NS (reprint author), Emcore Photovoltaics, 10420 Res Rd, Albuquerque, NM 87123 USA

Addresses: 1. Emcore Photovoltaics, Albuquerque, NM 87123 USA

Publisher: IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA

Subject Category: Energy & Fuels; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Materials Science, Coatings & Films

IDS Number: BS98J

ISSN: 0160-8371

ISBN: 0-7803-5773-6

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