Effects of oxygen related thermal donors on the performance of silicon heterojunction solar cells

被引：13

作者：

Li, Jiyang ^{[1
]}

Yu, Xuegong ^{[1
]}

Yuan, Shuai ^{[1
]}

Yang, Lifei ^{[2
]}

Liu, Zhengxin ^{[3
]}

Yang, Deren ^{[1
]}

机构：

[1] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China

[2] GCL Syst Integrat Technol Co Ltd, Suzhou 215000, Peoples R China

[3] Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2018年 / 179卷

基金：

中国国家自然科学基金;

关键词：

Silicon heterojunction; Solar cells; Thermal donors; Carrier lifetime; EFFICIENCY;

D O I：

10.1016/j.solmat.2018.02.006

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：

The influence of oxygen-related thermal donors (TDs) on the performance of silicon heterojunction (SHJ) solar cells was explored experimentally in this paper. It is found that a certain number of thermal donors could do much harm to the performance of SHJ solar cells. The efficiency of SHJ solar cells is usually reduced by a value of similar to 1% absolute in the case of thermal donors with a concentration of nearly 10(15) cm(-3). The microwave photoconductance decay and Hall Effect studies have proved that the TDs can significantly reduce the carrier lifetime of n-type silicon substrate, but have no influence on the carrier mobility. Deep level transient spectroscopy (DLTS) measurements have further demonstrated that the TDs cause an energy level at Ec-0.13 eV with carrier capture cross-section of 10(-15) cm(2), which is responsible for the reduction of carrier lifetime and solar cell efficiency.

引用

页码：17 / 21

页数：5

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