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Flatcon-modules. Technology and characterisation

: Bett, A.W.; Baur, C.; Dimroth, F.; Lange, G.; Meusel, M.; Riesen, S. van; Siefer, G.; Andreev, V.M.; Rumyantsev, V.D.; Sadchikov, N.A.

Kurokawa, K. ; Institute of Electrical and Electronics Engineers -IEEE-:
3rd World Conference on Photovoltaic Energy Conversion 2003. Proceedings. Vol.A : Joint conference of 13th PV Science & Engineering Conference, 30th IEEE PV Specialists Conference, 18th European PV Solar Energy Conference ; Osaka International Congress Center "Grand Cube", Osaka, Japan, 11 - 18 May 2003
Osaka, 2003
ISBN: 4-9901816-0-3
World Conference on Photovoltaic Energy Conversion (WCPEC) <3, 2003, Osaka>
PV Science and Engineering Conference <13, 2003, Osaka>
PV Specialists Conference <30, 2003, Osaka>
European PV Solar Energy Conference <18, 2003, Osaka>
Fraunhofer ISE ()

High-efficiency III-V solar cells can be used cost-effectively in high-concentration modules. The Fraunhofer ISE - in co-operation with the Ioffe Institute St. Petersburg - has developed the FLATCON-modules: Fresnel Lens All-glass Tandem-cell CONcentrator modules. A 500x concentration is obtained by using Fresnel lenses which are fabricated directly on a glass sheet. The module housing is made totally out of glass. High-efficient dual-junction cells of Ga0.65In0.35P/Ga0.83In 0.17As are applied. Outdoor measurements showed module efficiencies of > 22 %. Furthermore, a new tracking system as well as a monitoring measurement set up has been installed. The latter allows a continuous monitoring of up to 20 modules. First results are presented.