Influence of Substrate Temperature on Cu2ZnSnSe4 Thin Film Solar Cells Fabricated by Co-evaporation Process

被引：0

作者：

Sun D. ^{[1
,2
]}

Li Y.-L. ^{[1
]}

Wang L.-Q. ^{[1
]}

Zhang Y.-H. ^{[1
]}

Liu H. ^{[1
]}

Guo X.-J. ^{[1
]}

Chi Y.-D. ^{[1
]}

Zhang L. ^{[2
]}

机构：

[1] School of Electrical and Computer Engineering, Jilin Jianzhu University, Changchun

[2] Institute of Photo Electronics Thin Film Devices and Technology, Nankai University, Tianjin

来源：

Faguang Xuebao/Chinese Journal of Luminescence | 2019年 / 40卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Co-evaporation; CZTSe; Solar cells; Temperature;

D O I：

10.3788/fgxb20194003.0334

中图分类号：

学科分类号：

摘要：

Substrate temperature has very important influences on the performance of Cu2ZnSnSe4 (CZTSe) thin film solar cells. In this paper, CZTSe absorbers and solar cells prepared by co-evaporation process at different substrate temperatures are investigated. XRD results show additional reflections of SnSex of films deposited at substrate temperature(380℃). SEM measurements reveal that the quality of crystallization of CZTSe films improves with increasing substrate temperatures; meanwhile the open circuit voltage increases due to decreased grain-boundary recombination. However, J-V tests show that the efficiency of CZTSe solar cells fabricated at 460℃ is lower. The reason might be that CZTSe film growth starts with the formation of ZnSe at higher substrate temperature (460℃). And the ZnSe could form a barrier at the back contact which could reduce the short circuit current and fill factor. The best solar cell with an efficiency of 3.12% is obtained at medium substrate temperature of 420℃(active area 0.34 cm2). © 2019, Science Press. All right reserved.

引用

页码：334 / 339

页数：5

共 16 条

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