Light trapping by chemically micro-textured glass for crystalline silicon solar cells

Results of the studies of optical properties of anti-reflective glasses with various texturization patterns, which were used as a coating for crystalline silicon solar cells, are presented. It was found that glass samples sorted by their optical transmittance demonstrated the same order as when sorted by their solar-cell short-circuit current enhancement parameter. The value of the latter depended on the parameters of texturization, such as the surface density of inclusions and their profile, and the depth of etching pits. A 2% relative increase of the solar cell efficiency was obtained for the best glass sample for null degree angle of incidence, proving enhanced light trapping properties of the studied glass.

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1. The authors express their thanks for support to European Regional Development Fund and the Polish state budget within the Framework of the Carpathian Regional Operational Programme (RPPK.01.03.00-18-001/10-00) through the funding of the Center for Innovation and Transfer of Natural Science and Engineering Knowledge of the University of Rzeszow.

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2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).