Title :
Space concentrator module based on short focus linear Fresnel lenses and GaAs/GaSb tandem stacks
Author :
Andreev, V.M. ; Larionov, V.R. ; Lantratov, V.M. ; Grilikhes, V.A. ; Khvostikov, V.P. ; Rumyantsev, V.D. ; Sorokina, S.V. ; Shvarts, M.Z. ; Yakimova, E.V.
Author_Institution :
A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia
Abstract :
The module has a dimensions of 2.5×10×10 cm3 and consists of four Fresnel lenses with dimensions of 2.5×10 cm2 each. Two photoreceiver strings are made of tandem GaAs/GaSb triplets and two strings are made of AlGaAs/GaAs single junction cells. The best fabricated GaAs/GaSb tandem cell efficiency of 27.5% (AM0, 10 suns, 25°C), triplet efficiency of 25.6% (11 suns) and linear (10 cm in length) receiver efficiency of 24.3% (AM0, 6 suns, 25°C) were received. Fresnel lens efficiencies of 0.82-0.85 were achieved. The estimated module efficiency is 21% (AM0, 25°C). Module specific weight of 3 kg/m2 was realized
Keywords :
III-V semiconductors; gallium arsenide; gallium compounds; lenses; solar cells; solar energy concentrators; 10 cm; 2.5 cm; 21 percent; 24.3 percent; 25 C; 25.6 percent; 27.5 percent; GaAs-GaSb; GaAs/GaSb tandem stack concentrator solar cell; module efficiency; photoreceiver strings; receiver efficiency; short focus linear Fresnel lens; specific weight; Apertures; Assembly; Fresnel reflection; Gallium arsenide; Glass; Lenses; Metallization; Optical design; Photovoltaic cells; Sun;
Conference_Titel :
Photovoltaic Specialists Conference, 2000. Conference Record of the Twenty-Eighth IEEE
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-5772-8
DOI :
10.1109/PVSC.2000.916093
