Concentrator tandem solar cells based on AlGaAs/GaAs-InP/InGaAs (or GaSb) structures

Conference · Sat Dec 31 00:00:00 EST 1994

OSTI ID:191108

Andreev, V M; Karlina, L B; Kazantsev, A B; Khvostikov, V P; Rumyantsev, V D; Sorokina, S V; Shvarts, M Z ^[1]

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1. Russian Academy of Sciences, St. Petersburg (Russian Federation). A.F. Ioffe Physico-Technical Inst.

The authors have developed high-efficiency IR-transparent AlGaAs/GaAs top cells as well as InP/InGaAs and GaSb bottom cells for mechanically stacked tandem solar cells designed for space application. AlGaAs/GaAs and InP/InGaAs structures are prepared by liquid phase epitaxy, GaSb structures--by Zn-diffusion process. The highest top cell efficiency is 23.8% (AM0, 100 suns, 25 C). The infrared-sensitive InP/InGaAs cell efficiency measured under a GaAs IR-filter is 5.9%. The maximum GaSb cell efficiency under GaAs-filter is 5.1%. Mechanically stacked four-terminal tandem solar cells have been fabricated and tested as well. The reached efficiency of an AlGaAs/GaAs-InP/InGaAs tandem cell is 28.2% (AM0, 70 suns, 25 C).

• OSTI ID: 191108
• Report Number(s): CONF-941203-; ISBN 0-7803-1459-X; TRN: IM9610%%109
• Resource Relation: Conference: 1. world conference on photovoltaic energy conversion, Waikoloa, HI (United States), 5-9 Dec 1994; Other Information: PBD: 1994; Related Information: Is Part Of 1994 IEEE first world conference on photovoltaic energy conversion: Conference record of the twenty-fourth IEEE photovoltaic specialists conference -- 1994. Volume 2; PB: 1268 p.
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
ALUMINIUM ARSENIDE SOLAR CELLS
DESIGN
SPECTRAL RESPONSE
GALLIUM ARSENIDE SOLAR CELLS
INDIUM PHOSPHIDE SOLAR CELLS
CONCENTRATOR SOLAR CELLS
INDIUM ARSENIDES
GALLIUM ANTIMONIDES
LIQUID PHASE EPITAXY
GOLD
CHROMIUM
ZINC
NICKEL
GERMANIUM
DOPED MATERIALS
MAGNESIUM
MANGANESE
RAMAN SPECTROSCOPY
CURRENT DENSITY
ELECTRIC POTENTIAL
FILL FACTORS
EFFICIENCY