Effect of Na Concentrations on Microstructure and Optical Properties of ZnO Films  

作　　者：吕建国 孙兆奇 

机构地区：[1]School of Physics and Material Science, Anhui University [2]Department of Physics and Electronic Engineering, Hefei Normal University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2011年第1期23-27,共5页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China (No.50872001);Research Fund for the Doctoral Program of Higher Education ofChina (No. 20060357003);Talent Foundation of Anhui Province (No.2004Z029)

摘　　要：Na-doped ZnO thin films were deposited on the glass substrates using sol-gel method. The effect of Na concentrations on the structural and optical properties of ZnO films was studied. As Na concentration increases from 0.0 at% to 16.0 at%, preferential c-axis orientation becomes more and more obvious, and the intensity of the diffraction peaks from （103） increases. The optical band gap Eg value increases from 3.261 to 3.286 eV first and then decreases as Na concentration increases from 0.0 to 2.0 at% and then beyond 2.0 at%. The intensity of all the emissions increases with increasing Na concentration and the origins of the violet emission （wavelength in the 400-407 nm） and the blue emission （wavelength at 473 nm） were discussed in detail.Na-doped ZnO thin films were deposited on the glass substrates using sol-gel method. The effect of Na concentrations on the structural and optical properties of ZnO films was studied. As Na concentration increases from 0.0 at% to 16.0 at%, preferential c-axis orientation becomes more and more obvious, and the intensity of the diffraction peaks from （103） increases. The optical band gap Eg value increases from 3.261 to 3.286 eV first and then decreases as Na concentration increases from 0.0 to 2.0 at% and then beyond 2.0 at%. The intensity of all the emissions increases with increasing Na concentration and the origins of the violet emission （wavelength in the 400-407 nm） and the blue emission （wavelength at 473 nm） were discussed in detail.

关 键 词：Na-doped ZnO thin films sol-gel method MICROSTRUCTURE optical properties 

分 类 号：TB383.2[一般工业技术—材料科学与工程]