热处理温度对片状ZnO晶体结构和光学性质的影响

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热处理温度对片状ZnO晶体结构和光学性质的影响

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- 热处理温度对片状ZnO晶体结构和光学性质的影响
- Effect of Annealing Temperature on Structure and Optical Properties of Sheet-like ZnO Crystals
- 液晶与显示 2011年26卷第2期
- 作者机构：
  
  厦门理工学院材料科学与工程系
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： O571.22
- 收稿日期：2011-08-16，
  
  修回日期：2011-12-21，
  
  网络出版日期：2012-01-19，
  
  纸质出版日期：2011-04-06
- 稿件说明：
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陈华殷, 郭太良, 姚剑敏, 林志贤, 徐胜. 体三维显示中像素均匀性优化的参数选取[J]. 液晶与显示, 2011,26(2): 241-245

CHEN Hua-yin, GUO Tai-liang, YAO Jian-min, Lin Zhi-xian, XU Sheng. Selection of Parameters in Voxels Uniformity Optimization of Volumetric 3D Display[J]. , 2011,26(2): 241-245
陈华殷, 郭太良, 姚剑敏, 林志贤, 徐胜. 体三维显示中像素均匀性优化的参数选取[J]. 液晶与显示, 2011,26(2): 241-245 DOI：

CHEN Hua-yin, GUO Tai-liang, YAO Jian-min, Lin Zhi-xian, XU Sheng. Selection of Parameters in Voxels Uniformity Optimization of Volumetric 3D Display[J]. , 2011,26(2): 241-245 DOI：

摘要

采用均匀沉淀法

在无任何催化剂的条件下

两步合成片状ZnO晶体。105℃干燥得到ZnO晶体前驱物

400℃煅烧得到纯ZnO晶体。通过XRD、SEM、TEM、UV-vis 和PL光谱等测试手段对ZnO晶体在两个不同热处理温度下的结构和光学性质进行表征。结果显示：ZnO晶体为六方纤锌矿结构

(0001)面形貌为规则的片状正六边形。热处理温度由105℃升至400℃

样品直径增加；透射率降低；禁带宽度减小；光致发光近带边发射峰强度减弱

位置红移。实验结果表明，热处理温度对均匀沉淀法合成ZnO晶体的光学性质存在一定影响。

Abstract

Sheet-like ZnO crystals were prepared by homogeneous precipitation two steps method without any metal catalyst

dry at 105℃

then anneal at 400℃

we can get the two samples with the two different heat treatment temperature. In order to investigate the influence of heat treatment temperature to sheet-like ZnO crystals

we used X-ray diffractometer

scanning electron microscopy

transmission electron microscope

ultraviolet-visible-near infrared spectrophotometer and fluorescence spectroscope to characterize the structure and optical properties of the two samples. The results reveal that the product is highly crystalline with hexagonal wurtzite phase and has the appearance of regular hexagon shape at (0001) plane. The crystallinity of sheet-like ZnO crystals enhanced and the energy band gap decreased with the annealing temperature increasing from 105℃ to 400℃. What’s more

the near band gap peaks were red shift in the photoluminescence spectrum with the increasing of the annealing temperature.

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references

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