title: Comparison and optimization of randomly textured surfaces in thin-film solar cells.
abstract: 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.
authors.affiliation: Institute of Condensed Matter Theory and Optics, Friedrich-Schiller-Universität Jena, Germany. carsten.rockstuhl@uni-jena.de
authors.forename: C
authors.initials: C
authors.lastname: Rockstuhl
authors.forename: S
authors.initials: S
authors.lastname: Fahr
authors.forename: K
authors.initials: K
authors.lastname: Bittkau
authors.forename: T
authors.initials: T
authors.lastname: Beckers
authors.forename: R
authors.initials: R
authors.lastname: Carius
authors.forename: F-J
authors.initials: FJ
authors.lastname: Haug
authors.forename: T
authors.initials: T
authors.lastname: Söderström
authors.forename: C
authors.initials: C
authors.lastname: Ballif
authors.forename: F
authors.initials: F
authors.lastname: Lederer