Effect of Mg concentration on morphological, structural and optical properties of Mg-K co-doped ZnO thin films prepared by sol-gel method

被引：9
|
作者：
Shi, Shaobo [1 ]
Xu, Jianping [2 ]
Li, Lan [2 ]
机构：
[1] Tianjin Univ Technol & Educ, Sch Sci, Tianjin 300222, Peoples R China
[2] Tianjin Univ Technol, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China
来源：
MATERIALS LETTERS | 2018年 / 229卷
关键词：
Semiconductors; Optical materials and properties; Thin films; PHOTOLUMINESCENCE;
D O I：
10.1016/j.matlet.2018.07.017
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnO, K-doped ZnO (KZO) and (Mg, K) co-doped ZnO (MKZO) thin films have been prepared using sol-gel method and the morphological, structural and optical properties have been investigated by SEM, XRD, transmission spectra and PL spectra. All the films have a preferential c-axis orientation and an average transmittance of over 93% in the visible range. The optical band gap decreases by K doping, but gradually increases by Mg doping at a given K doping concentration. PL spectra show that the visible emission was enhanced, which indicates that the number of defects should be changed at Mg doping concentration of 8 mol%. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：178 / 181
页数：4
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