DocumentCode
2609713
Title
High efficiency 1.0 eV GaInAs bottom solar cell for 3-junction monolithic stack
Author
Schultz, J. ; Klausmeier-Brown, M. ; Ristow, M. ; Al-Jassim, M.
Author_Institution
Varian Res. Center, Palo Alto, CA, USA
fYear
1990
fDate
21-25 May 1990
Firstpage
148
Abstract
High-efficiency 1.0 eV GaInAs cells for ultimate integration into AlGaAs/GaAs/GaInAs 3-junction, 2-terminal monolithic devices are described. An n/p 1.0 eV GaInAs cell has been fabricated with a 4.7% (5.4%) solar conversion efficiency under 1-sun, 25°C, AM0 (AM1.5 G) conditions underneath a simulated GaAs cell. While this GaInAs cell had a AM0 J sc of 14.6 mA/cm2, at least 16 mA/cm2 is needed to current match the AlGaAs and GaAs upper cells. A recent n-i-p 1.0 eV GaInAs cell achieved a J sc of 16.0 mA/cm2. Progress toward monolithic integration with the AlGaAs/GaAs upper cells is described
Keywords
III-V semiconductors; gallium arsenide; indium compounds; solar cells; 1 eV; 2-terminal monolithic devices; 3-junction monolithic stack; 4.7 percent; AlGaAs-GaAs-GaInAs solar cell; GaInAs bottom solar cell; solar conversion efficiency; Absorption; Degradation; Gallium arsenide; Laboratories; Lattices; Monolithic integrated circuits; Photonic band gap; Photovoltaic cells; Solar energy; Stacking;
fLanguage
English
Publisher
ieee
Conference_Titel
Photovoltaic Specialists Conference, 1990., Conference Record of the Twenty First IEEE
Conference_Location
Kissimmee, FL
Type
conf
DOI
10.1109/PVSC.1990.111608
Filename
111608
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