Engineering Gaussian disorder at rough interfaces for light trapping in thin-film solar cells

被引：50
|
作者：
Kowalczewski, Piotr [1 ]
Liscidini, Marco [1 ]
Andreani, Lucio Claudio [1 ]
机构：
[1] Univ Pavia, Dept Phys, I-27100 Pavia, Italy
来源：
OPTICS LETTERS | 2012年 / 37卷 / 23期
关键词：
SURFACES; OPTIMIZATION; SYSTEMS; OPTICS; LIMIT;
D O I：
10.1364/OL.37.004868
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A theoretical study of randomly rough interfaces to obtain light trapping in thin-film silicon solar cells is presented. Roughness is modeled as a surface with Gaussian disorder, described using the root mean square of height and the lateral correlation length as statistical parameters. The model is shown to describe commonly used rough substrates. Rigorous calculations, with short-circuit current density as a figure of merit, lead to an optimization of disorder parameters and to a significant absorption enhancement. The understanding and optimization of disorder is believed to be of general interest for various realizations of thin-film solar cells. (C) 2012 Optical Society of America
引用
收藏
页码：4868 / 4870
页数：3
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