The Structural Characterization and Optical Properties of Zinc Oxide Films Synthesized by Electrochemistry Method

摘要：

　　Flaky ZnO thin films were electrodeposited from an aqueous solution of zinc nitrate (Zn(NO3)2) as electrolyte on ITO glass substrate by cathodic reduction method The effect of electrolyte concentration on the structure,morphology and optical properties of ZnO thin films were studied by X-ray diffraction,scanning electron microscopy and UV-Vis spectrometer.The results show that the ZnO films are of hexagonal wurtzite structure;When the concentration of Zn(NO3)2 solution is 0.24 M,the sparse flaky ZnO thin films were prepared and the thickness and length of ZnO flaky are about 50 nm and 1~3 μm,respectively;When the electrolyte concentration is 0.16 M,hexagonal and triangular structures are observed and some lathy and conical ZnO structure start to appear;When the concentration of Zn(NO3)2 solution drops to 0.08 M,the matrix of films is still flaky ZnO,but porous structures among the flaky structures appear and the size of conical ZnO has changed,whose bottom diameter reaches 1~3 μm and length is 2~4 μm;UV-Vis absorption test results indicate the absorption peak and the bandgap of the prepared ZnO thin films are about 350 nm and 3.28 eV,respectively.

关键词： ZnO thin films Electrochemical deposition Morphology Optical properties

作者: Jingxia Zheng Xingguo Zhao Wei Liang Jinbo Xue

作者单位: College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024,P.R. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024,P.R.

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 926-931

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）