Comb-shaped photonic crystal structure for efficient broadband light diffraction and funnelling in solar cells

被引：7

作者：

Chen, Zhi-Hui ^{[1
,2
]}

Hellstroem, S. ^{[1
]}

Yu, Zhong-Yuan ^{[2
]}

Fu, Y. ^{[1
]}

机构：

[1] KTH Royal Inst Technol, Sch Biotechnol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden

[2] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2012年 / 99卷

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

Light diffraction and funnelling; Photovoltaic; Photonic crystal; Solar cell; FUNDAMENTAL LIMIT; ENHANCEMENT;

D O I：

10.1016/j.solmat.2011.12.020

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

We present a comb-shaped photonic-crystal (PhC) rods-lattice structure of broadband light diffraction and funnelling for solar cell applications. It is shown that the photonic band of this PhC structure is very dispersive over a broad bandwidth so that light will be efficiently diffracted in the wavelength region of solar radiation. The PhC structure also creates resonance modes leading to further diffraction and funnelling of light so that the light propagates in many pathways in the whole PhC lattice region, which will greatly facilitate light-matter interaction when light-absorbing elements are embedded in the PhC structure. The proposed structure is also valid for photodetection applications. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：316 / 320

页数：5

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