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Progress toward an advanced four‐subcell inverted metamorphic multi‐junction (IMM) solar cell
Author(s) -
Wanlass Mark W.,
Ahrenkiel Scott P.,
Carapella Jeffrey J.,
Friedman Daniel J.,
Osterwald Carl R.,
Romero Manuel
Publication year - 2016
Publication title -
progress in photovoltaics: research and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.286
H-Index - 131
eISSN - 1099-159X
pISSN - 1062-7995
DOI - 10.1002/pip.2609
Subject(s) - materials science , solar cell , metamorphic rock , optoelectronics , photovoltaic system , engineering physics , electrical engineering , geology , physics , engineering , geochemistry
We report progress on the development of an advanced four‐subcell IMM CPV solar cell that is designed for extremely high conversion efficiency under realistic concentrator operating conditions. Practical considerations allowing the design to mitigate problems related to Al‐containing alloys, lattice mismatch, non‐ideal short‐wavelength response, and reflection losses are described. Performance modeling is used to guide the choice of optimal subcell band gaps for the new IMM cell. Early experimental efforts to develop and implement the new design are described and discussed. Copyright © 2015 John Wiley & Sons, Ltd.