Electrical and Optical Properties of Cu2ZnSnS4 Films with Different Chemical Composition

被引：2

作者：

Jheng, Bao-Tang ^{[1
]}

Chen, I-Ping ^{[1
]}

Wu, Meng-Chyi ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Inst Elect Engn, Hsinchu 30013, Taiwan

来源：

SCIENCE OF ADVANCED MATERIALS | 2015年 / 7卷 / 02期

关键词：

Thin Film; Photovoltaic Device; Solar Cell; THIN-FILMS; COUNTER ELECTRODE; SPUTTERING ROUTE; SOLAR-CELLS; EFFICIENCY; DEPOSITION;

D O I：

10.1166/sam.2015.2102

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, the Cu2ZnSnS4 (CZTS) films were grown by a two-step process using new ZnSn/Cu stacked precursors that were prepared by sputtering and subsequently annealed at 570 degrees C under a sulfur atmosphere. By controlling the composition ratio of the CZTS films, we increased the photocurrent of the CZTS thin-film solar cell employing the stacked bi-layer from 13.9 mA/cm(2) to 19.5 mA/cm(2) and increased the solar cell's efficiency from 3.9% to 5.3%. These increases are attributed to the formation of a Cu-poor CZTS film that resulted in increased formation of copper vacancies that give rise to shallow acceptors in the CZTS.

引用

页码：233 / 238

页数：6

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