Abstract
We study a micro-concentrated photovoltaic (CPV) system based on micro solar cells made from a thin film technology, . We designed, using the ray-tracing software Zemax OpticStudio 14, an optical system adapted and integrated to the microcells, with only spherical lenses. The designed architecture has a magnification factor of for an optical efficiency of 85% and an acceptance angle of , without anti-reflective coating. An experimental study is realized to fabricate the first generation prototype on a substrate. A mini-module achieved a concentration ratio of under AM1.5G, and an absolute efficiency gain of 1.8% for a final aperture area efficiency of 12.6%.
© 2016 Optical Society of America
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