Investigation of Morphology Related Cathodoluminescence Properties of ZnO Microstructure

LYU Shan-shan; CHU Xue-ying; WANG Ji-ping; FANG Fang; LI Jin-hua; FANG Xuan; WEI Zhi-peng

doi:10.3788/fgxb20143506.0672

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Investigation of Morphology Related Cathodoluminescence Properties of ZnO Microstructure

更新时间：2020-08-12

- Investigation of Morphology Related Cathodoluminescence Properties of ZnO Microstructure
- Chinese Journal of Luminescence Vol. 35, Issue 6, Pages: 672-677(2014)
- 作者机构：
  
  长春理工大学理学院,吉林长春,130022
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143506.0672
  CLC： O469
- Received：31 December 2013，
  
  Revised：22 January 2014，
  
  Published：03 June 2014
- 稿件说明：
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吕珊珊, 楚学影, 王记萍等. 形貌依赖的ZnO阴极射线发光性质研究[J]. 发光学报, 2014,35(6): 672-677

LYU Shan-shan, CHU Xue-ying, WANG Ji-ping etc. Investigation of Morphology Related Cathodoluminescence Properties of ZnO Microstructure[J]. Chinese Journal of Luminescence, 2014,35(6): 672-677
吕珊珊, 楚学影, 王记萍等. 形貌依赖的ZnO阴极射线发光性质研究[J]. 发光学报, 2014,35(6): 672-677 DOI： 10.3788/fgxb20143506.0672.

LYU Shan-shan, CHU Xue-ying, WANG Ji-ping etc. Investigation of Morphology Related Cathodoluminescence Properties of ZnO Microstructure[J]. Chinese Journal of Luminescence, 2014,35(6): 672-677 DOI： 10.3788/fgxb20143506.0672.

摘要

采用溶剂热法，通过调节水和乙醇混合液的比例制备了多种形貌的ZnO微米结构。利用扫描电子显微镜（SEM）对ZnO微米结构的形貌及尺寸进行了观察。采用可以实现纳米级微观区域光谱采集的阴极射线发光（CL）技术，对不同形貌的单个粒子的光谱进行精细表征，获得了位置依赖的ZnO阴极射线发光数据。实验结果表明：ZnO材料的发光性质与形貌有关，由于形貌差异导致其局部结晶质量、界面缺陷、表面电荷分布、表面晶面等方面的差异，几种因素共同作用决定其最终的发光性质。

Abstract

ZnO microstructure was prepared by solvothermal method. The morphology varied only with the proportion of deionized water and ethanol in the solvent. The morphology and size of the ZnO microstructure were observed by scanning electron microscope (SEM). The spectra of the individual particles with different morphology have been carried based on a detailed characterization by cathodoluminescence (CL) technique which could achieve nanoscale region optical properties. The spatially dependent CL results of the synthesized ZnO microstructure were obtained. It is found that the luminescence properties are related to the morphology of ZnO materials

because the morphology difference would lead to the differences on the crystal quality

interface defects

the charge distribution on the surface

and the terminated lattice face of the crystal. The luminescence properties are finally determined by these factors together.

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references

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