Surface analysis of spray deposited copper indium disulfide films

被引：41

作者：

Katerski, Atanas ^{[1
]}

Mere, Arvo ^{[1
]}

Kazlauskiene, Vida ^{[2
]}

Miskinis, Juozas ^{[2
]}

Saar, Agu ^{[3
]}

Matisen, Leonard ^{[3
]}

Kikas, Arvo ^{[3
]}

Krunks, Malle ^{[1
]}

机构：

[1] Tallinn Univ Technol, Dept Mat Sci, EE-19086 Tallinn, Estonia

[2] Vilnius State Univ, Inst Mat Sci & Appl Res, LT-2006 Vilnius, Lithuania

[3] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia

来源：

THIN SOLID FILMS | 2008年 / 516卷 / 20期

关键词：

CuInS2; spray pyrolysis; XPS; electrical properties;

D O I：

10.1016/j.tsf.2007.12.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CuInS2 films were deposited by spray pyrolysis method at 350 degrees C. Films were characterized by XPS, AFM and electrical resistivity. The effect of chemical etchings in KCN and (NH4)(2)S2O8 solutions and thermal treatment at 530 degrees C in flowing hydrogen sulphide on the film surface composition has been studied. Indium oxide as main secondary phase in surface region of KCN-etched films is probably responsible of high surface conductivity and failure to prepare substrate configuration solar cell. Oxygen bounded to metal is present in the film bulk revealed by O1s BE of 530.0 eV of Ar+ sputtered profile. Hydrogen sulfide treatment transforms indium oxide into indium sulfide. Etching in ammonium persulfate solution has found to be effective to remove conductive upper layer resulting in surface with composition Cu:In:S=28.3:22.5:49.3. According to XPS, sprayed films show phase composition grading from the film surface to depth. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：7110 / 7115

页数：6

共 29 条

[1] Electrochemical growth and properties of CuInS2 thin films for solar energy conversion [J].