Fabrication and test of a holographic concentrator for two color PV-operation

Klaus Froehlich; Ernst Ulrich Wagemann; H. Schulat; Hartmut Schuette; Christo G. Stojanoff

doi:10.1117/12.185419

9 September 1994 Fabrication and test of a holographic concentrator for two-color PV operation

Klaus Froehlich, Ernst Ulrich Wagemann, H. Schulat, Hartmut Schuette, Christo G. Stojanoff

Proceedings Volume 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII; (1994) https://doi.org/10.1117/12.185419
Event: Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII, 1994, Freiburg, Germany

Abstract

The dispersion of the solar radiation into different spectral bands which are focused onto spectrally matched solar cells improves the electric efficiency of photovoltaic collectors in comparison with conventional systems. Holographic lenses are able to disperse and to focus solar radiation at the same time. They may be reproduced from a master and are suitable for cheap mass production. The paper presents the fabrication and test of a 50 X 50 cm² PV-concentrator composed of a stack of two holographic lens arrays. Each lens array consists of 49 single lenses of dimension 7 X 7 cm². One array operates in the long wave spectral band, the other in the short wave range. The solar radiation is focused on spectrally matched solar cells of size 1 X 1 cm².

Citation Download Citation

Klaus Froehlich, Ernst Ulrich Wagemann, H. Schulat, Hartmut Schuette, and Christo G. Stojanoff "Fabrication and test of a holographic concentrator for two-color PV operation", Proc. SPIE 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII, (9 September 1994); https://doi.org/10.1117/12.185419

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