Role of Substrate Temperatures on Structural, Optical, Wetting and Electrical Transport Properties of CdS Thin Films

• 作者: P. D. More
• 来源期刊: 表面工程材料与先进技术期刊(英文)
• 学科: 工学
• 关键词: CDS THIN Film SPRAY PYROLYSIS BAND Gap Contact Angle
• 年，卷（期）: bmgcclyxjjsqkyw_2013,（1）
• 页码范围: 43-47
• 页数: 5页
• 分类号: TB3

摘要

Cadmium sulphide thin films were deposited on the glass substrate via simple spray pyrolysis technique. The substrate temperatures (Ts) have been varied from 250℃ to 350℃ and concentration of precursor’s solution of cadmium chloride and thiourea was optimized. The X-ray patterns and morphological studies of CdS thin films indicated that films are crystalline in nature with hexagonal crystal structure. The grain size calculated and found to be 250.12 to 349.61 nm. The optical spectra exhibited high transmittance and band gap varied from 2.41 eV to 2.39 eV. The angle of contact measured and found to be hydrophilicity behaviour. The electrical conductivity and thermoelectric power have been measured with two probe method. It was found that CdS thin films were semiconducting in nature with n-type.