Angular response of thin-film organic solar cells with periodic metal back nanostrips

被引：56

作者：

Sha, Wei E. I. ^{[1
]}

Choy, Wallace C. H. ^{[1
]}

Chew, Weng Cho ^{[1
,2
]}

机构：

[1] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

[2] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

来源：

OPTICS LETTERS | 2011年 / 36卷 / 04期

关键词：

GRATINGS; DEVICES;

D O I：

10.1364/OL.36.000478

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We theoretically study the angular response of thin-film organic solar cells with periodic Au back nanostrips. In particular, the equation of the generalized Lambert's cosine law for arbitrary periodic nanostructure is formulated. We show that the periodic strip structure achieves wide-angle absorption enhancement compared with the planar nonstrip structure for both the s- and p-polarized light, which is mainly attributed to the resonant Wood's anomalies and surface plasmon resonances, respectively. The work is important for designing and optimizing high-efficiency photovoltaic cells. (C) 2011 Optical Society of America

引用

页码：478 / 480

页数：3

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