Chemical composition dependence of morphological and optical properties of Cu2ZnSnS4 thin films deposited by sol-gel sulfurization and Cu2ZnSnS4 thin film solar cell efficiency

被引：280

作者：

Tanaka, Kunihiko ^{[1
]}

Fukui, Yuki ^{[1
]}

Moritake, Noriko ^{[1
]}

Uchiki, Hisao ^{[1
]}

机构：

[1] Nagaoka Univ Technol, Dept Elect Engn, Niigata 9402188, Japan

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2011年 / 95卷 / 03期

关键词：

Cu2ZnSnS4; Solar cell; Sol-gel sulfurizing; Non-vacuum process; ELECTROPLATED PRECURSORS;

D O I：

10.1016/j.solmat.2010.10.031

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 properties of Cu2ZnSnS4 (CZTS) thin films deposited by sol-gel sulfurization were investigated as a function of the chemical composition of the sol-gel solutions used. The chemical composition ratio Cu/(Zn+Sn) of the sol-gel solution was varied from 0.73 to 1.00, while the ratio Zn/Sn was kept constant at 1.15. CZTS films deposited using sol-gel solutions with Cu/(Zn+Sn) < 0.80 exhibited large grains. In addition, the band gaps of these Cu-poor CZTS thin films were blue shifted. Solar cells with the structure Al/ZnO:Al/CdS/CZTS/Mo/soda lime glass were fabricated under non-vacuum conditions. The solar cell with the CZTS layer deposited using the sol-gel solution with Cu/(Zn+Sn)=0.80 exhibited the highest conversion efficiency of 2.03%. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：838 / 842

页数：5

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