Comparison and optimization of randomly textured surfaces in thin-film solar cells

Using rigorous diffraction theory we investigate the scattering properties of various random textures currently used for photon management in thin-film solar cells. We relate the haze and the angularly resolved scattering function of these cells to the enhancement of light absorption. A simple crite...

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Published inOptics express Vol. 18 Suppl 3; no. S3; pp. A335 - A341
Main Authors Rockstuhl, C, Fahr, S, Bittkau, K, Beckers, T, Carius, R, Haug, F-J, Söderström, T, Ballif, C, Lederer, F
Format Journal Article
LanguageEnglish
Published United States 13.09.2010
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Summary:Using rigorous diffraction theory we investigate the scattering properties of various random textures currently used for photon management in thin-film solar cells. We relate the haze and the angularly resolved scattering function of these cells to the enhancement of light absorption. A simple criterion is derived that provides an explanation why certain textures operate more beneficially than others. Using this criterion we propose a generic surface profile that outperforms the available substrates. This work facilitates the understanding of the effect of randomly textured surfaces and provides guidelines towards their optimization.
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ISSN:1094-4087
1094-4087
DOI:10.1364/oe.18.00a335