Solution-Processed Cu2ZnSn(S,Se) 4 Thin-Film Solar Cells Using Elemental Cu, Zn, Sn, S, and Se Powders as Source

Jing Guo; Yingli Pei; Zhengji Zhou; Wenhui Zhou; Dongxing Kou; Sixin Wu

doi:10.1186/s11671-015-1045-6

Solution-Processed Cu2ZnSn(S,Se) 4 Thin-Film Solar Cells Using Elemental Cu, Zn, Sn, S, and Se Powders as Source

Nanoscale Res Lett. 2015 Dec;10(1):1045. doi: 10.1186/s11671-015-1045-6. Epub 2015 Aug 21.

Authors

Jing Guo¹, Yingli Pei, Zhengji Zhou, Wenhui Zhou, Dongxing Kou, Sixin Wu

Affiliation

¹ The Key Laboratory for Special Functional Materials of MOE, Henan University, Kaifeng, 475004, China.

Abstract

Solution-processed approach for the deposition of Cu2ZnSn (S,Se)4 (CZTSSe) absorbing layer offers a route for fabricating thin film solar cell that is appealing because of simplified and low-cost manufacturing, large-area coverage, and better compatibility with flexible substrates. In this work, we present a simple solution-based approach for simultaneously dissolving the low-cost elemental Cu, Zn, Sn, S, and Se powder, forming a homogeneous CZTSSe precursor solution in a short time. Dense and compact kesterite CZTSSe thin film with high crystallinity and uniform composition was obtained by selenizing the low-temperature annealed spin-coated precursor film. Standard CZTSSe thin film solar cell based on the selenized CZTSSe thin film was fabricated and an efficiency of 6.4 % was achieved.