High efficiency light trapping scheme used for ultrathin c-Si solar cells

被引：7

作者：

Lu, Xiaodong ^{[1
]}

Li, Yukuo ^{[1
]}

Lun, Shuxian ^{[1
]}

Wang, Xinxin ^{[1
]}

Gao, Jie ^{[1
]}

Wang, Yang ^{[1
]}

Zhang, Yufeng ^{[1
]}

机构：

[1] Bohai Univ, Coll New Energy, Jinzhou 121000, Liaoning, Peoples R China

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2019年 / 196卷

基金：

中国国家自然科学基金;

关键词：

Solar cell; Light trapping; High efficiency; SILICON; FABRICATION;

D O I：

10.1016/j.solmat.2019.03.036

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：

Ultrathin c-Si solar cells with their active layer thicknesses ranging from a few micrometers to several tens of micrometers will play a very important role in reducing the material costs of industrial c-Si solar cells. This work presents a new high efficiency light trapping scheme (HE-LTS) with two cavities for ultrathin c-Si solar cells. By analyzing the variations of the important optical parameters of each light trapping unit with its geometric parameters, the light trapping performances of the HE-LTS have been optimized. The results show that the light trapping abilities of the HE-LTS can exceed obviously that of Lambertian LTS in a broad range of geometric parameters for both TE and TM modes; the photocurrent densities of an ultrathin c-Si solar cell with the optimal HE-LTS can reach 36.65 mA/cm(2) and 40.47 mA/cm(2) for the TE and TM modes, respectively.

引用

页码：57 / 64

页数：8

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