Structural and optical properties of amorphous and crystalline antimony sulfide thin-films

被引：243

作者：

Versavel, Matthieu Y.

Haber, Joel A.

机构：

[1] Occidental Coll, Dept Chem, Los Angeles, CA 90041 USA

[2] Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada

来源：

THIN SOLID FILMS | 2007年 / 515卷 / 18期

关键词：

amorphous materials; optical properties; semiconductors; sputtering; sulfides; solar cells; amorphous antimony sulfide; crystalline antimony sulfide;

D O I：

10.1016/j.tsf.2007.03.043

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Smooth and compact thin films of amorphous and crystalline antimony sulfide (Sb2S3) were prepared by radio frequency sputtering of an Sb2S3 target. As-deposited films are amorphous. Polycrystalline antimony sulfide films composed of similar to 500 nm grains are obtained by annealing the as-deposited films at 400 degrees C in sulfur vapors. Both amorphous and crystalline antimony sulfide have strong absorption coefficients of 1.8 x 10(5) cm(-1) at 450 nm and 7.5 x 10(4) cm(-1) at 550 nm, and have direct bandgaps with band energies of 2.24 eV and 1.73 eV, respectively. These results suggest the potential use of both amorphous and crystalline antimony sulfide films in various solid state devices. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：7171 / 7176

页数：6

共 41 条

[31] A comparative study of concentration effect of complexing agent on the properties of spray deposited Sb2S3 thin films and precipitated powders [J].