Structural and Optical Properties of Na-Mg Co-doped ZnO Film

SUO Ya-qin; LIU Su; LIU Feng-qiong; YIN Xiao-li; YAN Xin; CHANG Jiang

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Structural and Optical Properties of Na-Mg Co-doped ZnO Film

paper | 更新时间：2020-08-12

- Structural and Optical Properties of Na-Mg Co-doped ZnO Film
- Chinese Journal of Luminescence Vol. 31, Issue 3, Pages: 353-358(2010)
- 作者机构：
  
  兰州大学物理科学与技术学院,甘肃兰州,730000
- 作者简介：
- 基金信息：
- DOI：
  CLC： O472.3;O482.31
- Received：22 January 2010，
  
  Revised：02 January 1900，
  
  Published Online：30 June 2010，
  
  Published：30 June 2010
- 稿件说明：
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SUO Ya-qin, LIU Su, LIU Feng-qiong, et al. Structural and Optical Properties of Na-Mg Co-doped ZnO Film[J]. Chinese journal of luminescence, 2010, 31(3): 353-358.
DOI：

SUO Ya-qin, LIU Su, LIU Feng-qiong, et al. Structural and Optical Properties of Na-Mg Co-doped ZnO Film[J]. Chinese journal of luminescence, 2010, 31(3): 353-358. DOI：

摘要

利用溶胶-凝胶法

在普通载玻片上使用旋转涂膜技术制备了具有

轴择优取向生长的Na-Mg共掺杂的ZnO薄膜。用XRD、SEM、光致发光(PL)及透射光谱对薄膜样品进行了表征。结果表明:Na-Mg共掺杂有利于ZnO薄膜的

轴择优取向生长

并且随着Na

掺杂浓度的增加

晶粒尺寸先增大后减小;通过比较不同掺杂浓度ZnO薄膜的PL谱

推测发光峰值位于380 nm的紫外发射与ZnO的自由激子复合有关;发现掺入Mg的确能使ZnO禁带宽度增大

掺杂组分为Na

0.04

0.2

0.76

O时

其PL谱只有一个很强的紫光发射峰

其近带边紫外光发射强度较未掺杂的ZnO增强了近10倍

极大地提高了薄膜紫外发光性能;并且随Na

浓度增加薄膜透光性减弱。

Abstract

The Na-Mg co-doped hexagonal wurtzite thin ZnO film with the

-axis (002) preferred orientation were fabricated on lime-glass substrate by sol-gel spin coating method. The phase structural characteristics and surface morphology as well as optical properties were investigated by X-ray diffraction (XRD)

scanning electron microscope (SEM)

photoluminescence (PL) and transmittance

respectively. The results showed that Na-Mg co-doping is propitious to the ZnO film growth along the

-axis .The crystal size is influenced by the increase amount of Na content. Proved the ultraviolet emission peak at 380 nm is from the recombination luminescence for exciton energy levels

and found that Mg doped ZnO can make band gap increase indeed. The PL spectrum of Na

0.04

0.2

0.76

O has only one violet emission peak

and the transmittance and the band-gap of the Na-Mg co-doped ZnO films are decreased with the increasing of Na content.

关键词

Keywords

references

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