Light Absorption Enhancement in Thin-Film Solar Cells Using Whispering Gallery Modes in Dielectric Nanospheres

被引：330
|
作者：
Grandidier, Jonathan [1 ]
Callahan, Dennis M. [1 ]
Munday, Jeremy N. [1 ]
Atwater, Harry A. [1 ]
机构：
[1] CALTECH, Thomas J Watson Lab Appl Phys, Pasadena, CA 91125 USA
来源：
ADVANCED MATERIALS | 2011年 / 23卷 / 10期
关键词：
OPTICAL WAVE-GUIDE; PHOTONIC CRYSTALS; MICROSPHERES; SPHERES; DESIGN;
D O I：
10.1002/adma.201004393
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Freely propagating sunlight can be diffractively coupled and transformed into several guided whispering gallery modes within an array of wavelength scale dielectric spheres. Incident optical power is then transferred to the thin- film cell by leaky mode coupling into a thin solar cell absorber layer and significantly enhances its efficiency by increasing the fraction of incident light absorbed.
引用
收藏
页码：1272 / +
页数：6
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