Terrestrial Concentrator PV Modules Based on GaInP/GaAs/Ge TJ Cells and Minilens Panels

This paper is a description of research activity in the field of cost-effective modules realizing the concept of very high solar concentration with small-aperture area Fresnel lenses and multijunction III-V cells. Structural simplicity and "all-glass" design are the guiding principles of t...

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Bibliographic Details
Main Authors: Rumyantsev, V.D., Sadchikov, N.A., Chalov, A.E., lonova, E.A., Friedman, D.J., Glenn, G.
Format: Conference Proceeding
Language:English
Subjects:
Fresnel reflection
Gallium arsenide
Glass
III-V semiconductor materials
Lenses
Optical materials
Optical refraction
Photovoltaic cells
Sun
Testing
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Summary:This paper is a description of research activity in the field of cost-effective modules realizing the concept of very high solar concentration with small-aperture area Fresnel lenses and multijunction III-V cells. Structural simplicity and "all-glass" design are the guiding principles of the corresponding development. The advanced concentrator modules are made with silicone Fresnel lens panels (from 8 up to 144 lenses, each lens is 4times4 cm 2 in aperture area) with composite structure. GaInP/GaAs/Ge triple-junction cells with average efficiencies of 31.1 and 34.7% at 1000 suns were used for the modules. Conversion efficiency as high as 26.3% has been measured indoors in a test module using a newly developed large-area solar simulator
ISSN:0160-8371
DOI:10.1109/WCPEC.2006.279534