A platform for colorful solar cells with enhanced absorption

被引：11
作者：
Dhindsa, Navneet [1 ,2 ]
Walia, Jaspreet [1 ,2 ]
Saini, Simarjeet Singh [1 ,2 ]
机构：
[1] Univ Waterloo, Dept Elect & Comp Engn, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada
[2] Univ Waterloo, Waterloo Inst Nanotechnol, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada
来源：
NANOTECHNOLOGY | 2016年 / 27卷 / 49期
关键词：
amorphous silicon nanowires; solar cells; structural colors; enhanced absorption; coupled cavity modes; leaky waveguide modes; vertical nanowire arrays; SILICON NANOWIRE;
D O I：
10.1088/0957-4484/27/49/495203
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We demonstrate submicron thick platform integrating amorphous silicon nanowires and thin-films achieving vivid colors in transmission and reflection. The platform nearly doubles the absorption efficiency compared to the starting thin-film without much compromising with color diverseness. The structural colors can be changed over a wide range by changing the diameters of the nanowires while still keeping the absorption efficiency higher than starting thin-film. The optical response of the platform is conceptually understood for different diameters combined with different thin-film thicknesses indicating the presence of leaky waveguide modes and coupled cavity modes. Our proposed platform can enable architectural low price colorful solar cells on transparent substrates.
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页数：9
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