NDLI: Lattice-matched and metamorphic GaInP/GaInAs/Ge concentrator solar cells

Content Provider	IEEE Xplore Digital Library
Author	King, R.R. Fetzer, C.M. Colter, P.C. Edmondson, K.M. Law, D.C. Stavrides, A.P. Yoon, H. Kinsey, G.S. Cotal, H.L. Ermer, J.H. Sherif, R.A. Emery, K. Metzger, W. Ahrenkiel, R.K. Karam, N.H.
Copyright Year	2003
Description	Author affiliation: Spectrolab Inc., Sylmar, CA, USA (King, R.R.; Fetzer, C.M.; Colter, P.C.; Edmondson, K.M.; Law, D.C.; Stavrides, A.P.; Yoon, H.; Kinsey, G.S.; Cotal, H.L.; Ermer, J.H.; Sherif, R.A.)
Abstract	Recent developments in epitaxial III-V multijunction solar cell technology have allowed concentrator and 1-sun cells to reach new heights in efficiency under the terrestrial solar spectrum. The bandgaps of the GaInP and GaInAs subcells are controlled by varying indium content, up to 12% indium in the GaInAs middle cell, or 0.8% lattice mismatch. Shockley-Read-Hall recombination at dislocations in such metamorphic cells has been restricted to lower levels than previously achieved, and is compared to the lattice-matched case. Terrestrial GaInP/GaInAs/Ge 3-junction cells have been produced at Spectrolab with record efficiencies independently verified at NREL, of 31.3% for metamorphic 1-sun cells and 32.0% for lattice-matched 1-sun cells (25/spl deg/C, AM1.5G, 4.00 cm/sup 2/), and 35.2% for lattice-matched concentrator cells under the AM1.5 Direct, low-AOD spectrum (25/spl deg/C, 66 suns, 0.26 cm/sup 2/).
Starting Page	622
Ending Page	625
File Size	281241
Page Count	4
File Format	PDF
ISBN	4990181603
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-11
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	PVSEC Advisory Committee
Subject Keyword	Photovoltaic cells Photonic band gap Lattices Renewable energy resources Laboratories Indium Substrates Gain measurement Epitaxial growth Sun
Content Type	Text
Resource Type	Article

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