Broadband light absorption enhancement in ultrathin film crystalline silicon solar cells with high index of refraction nanosphere arrays

被引：39
|
作者：
Wang, Baomin [1 ]
Gao, Tongchuan [1 ]
Leu, Paul W. [1 ,2 ]
机构：
[1] Univ Pittsburgh, Dept Ind Engn, Pittsburgh, PA 15261 USA
[2] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA
来源：
NANO ENERGY | 2016年 / 19卷
关键词：
C-silicon; Photovoltaics; Dielectric nanospheres; Light trapping; LITHOGRAPHY; SURFACES;
D O I：
10.1016/j.nanoen.2015.10.039
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper, we demonstrate that dielectric nanosphere arrays can enhance the absorption in ultrathin film crystalline silicon by coupling incident light to the underlying silicon layer. By introducing dielectric nanospheres on top of the crystalline silicon thin film solar cell, the power conversion efficiency can be improved by 26.5%. The nanosphere coating increases the absorption and external quantum efficiency over a broadband wavelength range. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：471 / 475
页数：5
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