Efficiency Enhancement of Cu2ZnSn(S,Se)4 Solar Cells via Alkali Metals Doping

被引：123

作者：

Hsieh, Yao-Tsung ^{[1
,2
]}

Han, Qifeng ^{[1
,2
,3
]}

Jiang, Chengyang ^{[2
]}

Song, Tze-Bin ^{[1
,2
]}

Chen, Huajun ^{[1
,2
]}

Meng, Lei ^{[1
,2
]}

Zhou, Huanping ^{[1
,2
]}

Yang, Yang ^{[1
,2
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA

[3] Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China

来源：

ADVANCED ENERGY MATERIALS | 2016年 / 6卷 / 07期

基金：

美国国家科学基金会;

关键词：

alkali metals; carrier density; CdS; grain size; solar cells;

D O I：

10.1002/aenm.201502386

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：

Doping of alkali metals in precursor solutions demonstrates an effective strategy to achieve high efficiency Cu2ZnSn(S,Se)4 solar cells. The properties of doped films are related to alkali metal radius. Smaller alkali atoms are beneficial for increasing carrier concentration, whereas larger atoms are conducive to grain growth. Over 8% efficiency of K-doped Cu2ZnSn(S,Se)4 solar cell with optimized CdS thickness is realized. © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

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