Large area GaInP{sub 2}/GaAs/Ge multijunction solar cells for space applications
Conference
·
OSTI ID:191199
- Spectrolab Inc., Sylmar, CA (United States)
- National Renewable Energy Lab., Golden, CO (United States)
Towards an ultimate objective of lower cost, large area multijunction cells for space applications, the authors report herein the demonstration of high efficiency GaInP{sub 2}/GaAs solar cells on germanium substrates, and highly uniform cell results from a multiwafer MOVPE reactor. A peak efficiency of 24.2% (AM0, 28 C) has been achieved for dual-junctions grown on Ge. Further, the degree of MOVPE layer uniformity required for large area cells has been demonstrated with multiwafer growths on 3 inch diameter GaAs substrates. In addition to this experimental dual-junction result, the authors present modeling for the next step of this cell technology--a triple junction GaInP{sub 2}/GaAs/Ge cell.
- OSTI ID:
- 191199
- Report Number(s):
- CONF-941203--; ISBN 0-7803-1459-X
- Country of Publication:
- United States
- Language:
- English
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