文章基本信息

标题：Influence of pH on Structural and Optical Properties of Spin Coated ZnO Thin Films
本地全文：下载
作者：S.Shankar ; M.Saroja ; M.Venkatachalam 等
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：2
页码：8990
出版社：S&S Publications
摘要：Multi layer Zinc Oxide thin films with different pH were prepared by sol-gel spin coating technique. Zincacetate dihydrate (Zn (CH3COO)2 .2H2O), monoethanolamine (MEA,H2N(CH2CH2OH) and isopropanol (CH3C2H5OH,Merck) were used to prepare the coating solution and its pH was varied by adding ammonia and was spin coated onglass substrates at 2000 rpm for 30s. After each deposition the films were pre-heated at 200°C for 10 minutes. Thecoating was repeated for five times. Finally the films were post heated at 450oC in air atmosphere for 60 minutes.Thickness of the films was found by surface stylus profilometer. The structural properties were investigated by usingX-ray diffraction technique and grain size was calculated. The optical properties were investigated using UV-Visspectroscopy and PL studies and the optical band gap was calculated. The influence of pH on the structural and opticalproperties of ZnO thin films was reported.
关键词：ZnO thin films; sol-gel; spin coating ; pH; structural and optical properties.