Light intensity enhancement by diffracting structures in solar cells

被引：44

作者：

Tobias, I. ^{[1
]}

Luque, A. ^{[1
]}

Marti, A. ^{[1
]}

机构：

[1] Univ Politecn Madrid, Inst Energia Solar, E-28040 Madrid, Spain

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 03期

关键词：

D O I：

10.1063/1.2960586

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A simplified three-dimensional study is presented of the light confinement, that is, of the enhancement of the Poynting vector of the electromagnetic radiation of the light inside a solar cell absorbing the light weakly when diffracting structures are used. The model is based on the theory of periodic radiation arrays and is easily applied to one- and two-dimensional diffraction gratings. Realistically wide illumination bundles are considered. The extended nature of illumination severely limits the enhancement capabilities of diffraction structures. Results are compared to those of the more widely used Lambertian light confinement. (C) 2008 American Institute of Physics.

引用

页数：9

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