Rockstuhl C, Fahr S, Bittkau K, Beckers T, Carius R, Haug F-J, Söderström T, Ballif C, Lederer F
Institute of Condensed Matter Theory and Optics, Friedrich-Schiller-Universität Jena, Germany.
Opt Express. 2010 Sep 13;18 Suppl 3:A335-41. doi: 10.1364/OE.18.00A335.
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.
我们运用严格的衍射理论，研究了目前薄膜太阳能电池中用于光子管理的各种随机纹理的散射特性。我们将这些电池的雾度和角分辨散射函数与光吸收的增强联系起来。推导出了一个简单的准则，该准则解释了为什么某些纹理比其他纹理更具优势。利用这个准则，我们提出了一种优于现有衬底的通用表面轮廓。这项工作有助于理解随机纹理表面的效果，并为其优化提供指导方针。
