Design of efficient plasmonic thin-film solar cells based on mode splitting

被引：6
|
作者：
Li, Tong [1 ]
Dai, Lei [1 ]
Jiang, Chun [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2011年 / 28卷 / 08期
基金：
中国国家自然科学基金;
关键词：
PHOTOVOLTAIC APPLICATIONS; ABSORPTION ENHANCEMENT; SYMMETRY-BREAKING; NANOPARTICLES; SCATTERING; DEVICES; METALS; AG;
D O I：
10.1364/JOSAB.28.001793
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new efficient plasmonic structure for solar energy absorption is designed. Numerical simulations demonstrate the absorption enhancement in a symmetrical structure based on the mode coupling between the localized plasmonic mode in an Ag strip pair and the excited waveguide mode in a silicon slab. Then the method of symmetry breaking is used to excite the dark modes that can further enhance the absorption ability. The new structure is compared with a bare thin-film Si solar cell, and results show that the integrated light harvest efficiency is greatly improved for the TM polarization in such thin geometry. (C) 2011 Optical Society of America
引用
收藏
页码：1793 / 1797
页数：5
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