Space concentrator module based on short focus linear Fresnel lenses and GaAs/GaSb tandem stacks

Space concentrator module based on short focus linear Fresnel lenses and GaAs/GaSb tandem stacks

The module has a dimensions of 2.5/spl times/10/spl times/10 cm/sup 3/ and consists of four Fresnel lenses with dimensions of 2.5/spl times/10 cm/sup 2/ each. Two photoreceiver strings are made of tandem GaAs/GaSb triplets and two strings are made of AlGaAs/GaAs single junction cells. The best fabri...

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Bibliographische Detailangaben
Hauptverfasser: 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.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Apertures
Assembly
Fresnel reflection
Gallium arsenide
Glass
Lenses
Metallization
Optical design
Photovoltaic cells
Sun
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Beschreibung
Zusammenfassung:The module has a dimensions of 2.5/spl times/10/spl times/10 cm/sup 3/ and consists of four Fresnel lenses with dimensions of 2.5/spl times/10 cm/sup 2/ 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/spl deg/C), triplet efficiency of 25.6% (11 suns) and linear (10 cm in length) receiver efficiency of 24.3% (AM0, 6 suns, 25/spl deg/C) were received. Fresnel lens efficiencies of 0.82-0.85 were achieved. The estimated module efficiency is 21% (AM0, 25/spl deg/C). Module specific weight of 3 kg/m/sup 2/ was realized.
ISSN:0160-8371
DOI:10.1109/PVSC.2000.916093