Effects of potassium doping on solution processed kesterite Cu2ZnSnS4 thin film solar cells

被引：105

作者：

Tong, Zhengfu ^{[1
]}

Yan, Chang ^{[2
]}

Su, Zhenghua ^{[1
]}

Zeng, Fangqin ^{[1
]}

Yang, Jia ^{[1
]}

Li, Yi ^{[1
]}

Jiang, Liangxing ^{[1
]}

Lai, Yanqing ^{[1
]}

Liu, Fangyang ^{[1
,2
]}

机构：

[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Peoples R China

[2] Univ New S Wales, Australian Ctr Adv Photovolta, Sch Photovolta & Renewable Energy Engn, Sydney, NSW 2052, Australia

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 22期

基金：

中国国家自然科学基金;

关键词：

STRUCTURAL-PROPERTIES; CU(IN; GA)SE-2; GROWTH;

D O I：

10.1063/1.4903500

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Alkaline metals doping is one of the approaches for achieving high efficiency Cu(In,Ga)Se-2 (CIGS) solar cell. Recently, potassium doping helps to break the record efficiency of CIGS solar cell doped with sodium. In this paper, we have investigated how incorporation of potassium can influence the properties of Cu2ZnSnS4 (CZTS) thin film and the performance of resulting solar cell. Our results showed that K doping can enhance the (112) preferred orientation, increase the grain size and reduce the second phase ZnS of the CZTS thin films. After K doping, despite of some drop of V-oc for CZTS thin film solar cells, the R-s is decreased and the J(sc) is improved markedly, and the solar cell efficiency is boosted. (C) 2014 AIP Publishing LLC.

引用

页数：4

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