Details

Autor(en) / Beteiligte

• 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.

Titel

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

Ist Teil von

• IEEE journal of photovoltaics, 2012-07, Vol.2 (3), p.377-381

Ort / Verlag

IEEE

Erscheinungsjahr

2012

Quelle

IEEE Xplore

Beschreibungen/Notizen

• 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.