Ionic liquid-assisted green solution approach for high-performance Cu2ZnSn(S,Se)4 thin film solar cells

被引：18

作者：

Shi, Xinan ^{[1
,2
]}

Huang, Lijian ^{[1
,2
]}

Pan, Daocheng ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, 5625 Renmin St, Changchun 130022, Jilin, Peoples R China

[2] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2020年 / 473卷

基金：

中国国家自然科学基金;

关键词：

Cu2ZnSn(S; Se)(4); Thin film solar cells; Kesterite; Ionic liquid; HIGH-EFFICIENCY; PHOTOVOLTAIC DEVICES; PRECURSOR SOLUTION; FABRICATION; GEL; NANOCRYSTALS; SELENIZATION; ABSORBER; SOLVENTS; BINARY;

D O I：

10.1016/j.jpowsour.2020.228529

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 research, a facile and environmentally friendly solution approach is developed to deposit Cu2ZnSn(S,Se)(4) thin films by addition of n-butylammonium butyrate ionic liquid. n-Butylammonium butyrate plays a critical role in solution deposition of Cu2ZnSnS4 precursor thin film. We find that liquid n-butylammonium butyrate can dissolve a number of metal oxides, including Cu2O, ZnO, and SnO as well as various metal chlorides, metal nitrates and metal acetates. Smell-free Cu2ZnSnS4 precursor solution is synthesized by dissolving Cu2O, ZnO, SnCl2 and thiourea in an ethanol solution of n-butylammonium butyrate. Thermally degradable n-butylammonium butyrate can be completely removed by a low-temperature sintering process, forming high quality Cu2ZnSnS4 nanoparticle thin film. A power conversion efficiency of 8.79% is obtained by this facile and green solution approach.

引用

页数：6

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