Influence of growth process on the structural, optical and electrical properties of CBD-CdS films

被引：92

作者：

Li, WY ^{[1
]}

Cai, X

Chen, QL

Zhou, ZB

机构：

[1] Shanghai Jiao Tong Univ, Key Lab Minist Educ High Temp Mat & Testing, Shanghai 200030, Peoples R China

[2] Shanghai Jiao Tong Univ, Solar Energy Inst, Dept Phys, Shanghai 200030, Peoples R China

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 01期

关键词：

photovoltaic material; cadmium sulfide; chemical bath deposition;

D O I：

10.1016/j.matlet.2004.04.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The hexagonal cadmium sulphide (CdS) thin films with strong (002) orientation are successfully prepared by chemical bath deposition (CBD) technique using the reaction between CdCl2 and CS(NH2)(2). Especially, polyglycol is used to modify the CBD system without magnetic agitation. The influence of bath temperature on the properties of the US films such as optical transmission, surface morphology and the structure is researched. The results show that polyglycol can flatten the films and diminish the pinhole. X-ray diffraction (XRD) and transmission electron microscopy (TEM) tests verify that the deposited US films presented a hexagonal structure and no secondary or mixed phases are found. A preferential columnar growth parallel to the substrate edge is also observed. It is found that the bath temperature plays a vital role on the quality of the US films. The increase of bath temperature improves the surface morphology of the US films and also diminishes pinholes on the films. The optimum bath temperature is 85 degreesC. The band gap calculated from transmission spectra is about 2.56-2.336 eV (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：1 / 5

页数：5

共 19 条

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