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

页码：178 / 181

页数：4

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