Performance improvement of Cu2ZnSn(S,Se)4 solar cells by ultraviolet ozone treatment on precursor films

被引：9

作者：

Zhao, Jing ^{[1
]}

Zhao, Yun ^{[2
]}

Tan, Xiaohui ^{[1
]}

Liu, Weizhen ^{[1
]}

Zhao, Wenning ^{[1
]}

Fang, Yikun ^{[1
]}

Han, Xiuxun ^{[1
]}

机构：

[1] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Inst Optoelect Mat & Devices, Ganzhou 341000, Peoples R China

[2] Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2021年 / 226卷

基金：

中国国家自然科学基金;

关键词：

CZTSSe; Solar cells; Solution method; Ultraviolet ozone; THIN-FILMS; EFFICIENCY; PHOTOVOLTAICS; FABRICATION; OXIDE;

D O I：

10.1016/j.solmat.2021.111092

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 precursor status is critical in obtaining high-quality CZTSSe absorbers for direct solution coating method. Here, the ultraviolet-ozone (UV-ozone) oxidation is introduced during precursor film preparation based on DMSO/DMF solutions. It was found that exposing precursor films in ultraviolet ozone with proper duration before selenization treatment effectively reduces the organic residues stemming from solvent and/or component sources. Comparing with the untreated reference sample, the crystallization and morphology of CZTSSe layers with UV-ozone treatment are evidently improved, leading to enhanced carrier lifetime and solar cell device performance. This work provides a feasible way to solve the common problem involving organic residues during CZTSSe layer preparation via a non-hydrazine solution process.

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页数：7

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