Experimental Results From Performance Improvement and Radiation Hardening of Inverted Metamorphic Multijunction Solar Cells

This paper discusses results from continued development of inverted metamorphic multijunction (IMM) solar cells with air mass zero (AM0) conversion efficiencies greater than 34%. An experimental best four-junction IMM (IMM4J) design is presented. In an effort to improve IMM performance in space radi...

Full description

Saved in:
Bibliographic Details
Published in:IEEE journal of photovoltaics 2012-07, Vol.2 (3), p.377-381
Main Authors: Patel, P., Aiken, D., Boca, A., Cho, B., Chumney, D., Clevenger, M. B., Cornfeld, A., Fatemi, N., Lin, Y., McCarty, J., Newman, F., Sharps, P., Spann, J., Stan, M., Steinfeldt, J., Strautin, C., Varghese, T.
Format: Article
Language:English
Subjects:
Electron devices
Gallium arsenide
Indium gallium arsenide
Performance evaluation
Photoelectricity
Photonic band gap
Photovoltaic cells
semiconductor devices
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper discusses results from continued development of inverted metamorphic multijunction (IMM) solar cells with air mass zero (AM0) conversion efficiencies greater than 34%. An experimental best four-junction IMM (IMM4J) design is presented. In an effort to improve IMM performance in space radiation environments, 1-MeV electron irradiation studies are conducted on the individual IMM4J subcells. These data are used to engineer an IMM4J structure with beginning of life AM0 conversion efficiency of approximately 34% and an end of life (EOL) remaining factor greater than 82%, where EOL is defined as performance after exposure to 1-MeV electron irradiation at 1E15 e/cm ^2 fluence. Next-generation IMM designs are explored and an avenue toward AM0 conversion efficiencies of greater than 35% is presented.
ISSN:2156-3381
2156-3403
DOI:10.1109/JPHOTOV.2012.2198048