AlGaAsSb as a top cell material for InP-based triple-junction solar cells

Yiqiao Chen; Aaron Moy; Wentao Lu; Kan Mi; Peter P. Chow

doi:10.1117/12.2062773

17 September 2014 AlGaAsSb as a top cell material for InP-based triple-junction solar cells

Yiqiao Chen, Aaron Moy, Wentao Lu, Kan Mi, Peter P. Chow

Proceedings Volume 9226, Nanophotonics and Macrophotonics for Space Environments VIII; 92260L (2014) https://doi.org/10.1117/12.2062773
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

We report the design and fabrication of Al_0.95Ga_0.05As_0.56Sb_0.44/Al_0.75Ga_0.25As_0.56Sb_0.44 solar cell as a top cell for triple-junction cell grown on InP substrate. The digital alloy technique, capable to grow high quality materials with composition falling in miscibility gap, was employed to grow high quality Al(Ga)AsSb to realize Al(Ga)AsSb solar cells. A test Al_0.95Ga_0.05As_0.56Sb_0.44/Al_0.75Ga_0.25As_0.56Sb_0.44 cell grown by molecular beam epitaxy was fabricated and characterized. The measured energy conversion efficiency is up to 8.9% under simulated AM0 radiation for the Al_0.95Ga_0.05As_0.56Sb_0.44/Al_0.75Ga_0.25As_0.56Sb_0.44 cell without AR coating on cell surface.

Citation Download Citation

Yiqiao Chen, Aaron Moy, Wentao Lu, Kan Mi, and Peter P. Chow "AlGaAsSb as a top cell material for InP-based triple-junction solar cells", Proc. SPIE 9226, Nanophotonics and Macrophotonics for Space Environments VIII, 92260L (17 September 2014); https://doi.org/10.1117/12.2062773

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