中国物理B ›› 2012, Vol. 21 ›› Issue (6): 68101-068101.doi: 10.1088/1674-1056/21/6/068101

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

ZnO nanorod arrays with tunable size and field emission properties on an ITO substrate achieved by an electrodeposition method

巩江峰a b, 窦召明a, 王志强b, 张博a b, 朱卫华a, 张开骁a, 刘明熠a, 朱浩c, 周剑锋c   

  1. a. Department of Physics, Hohai University, Nanjing 210098, China;
    b. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;
    c. College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
  • 收稿日期:2011-11-20 修回日期:2011-12-05 出版日期:2012-05-01 发布日期:2012-05-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11004047), the China Postdoctoral Sustentation Fund (Grant No. 200904501062), Jiangsu Provincial Postdoctoral Sustentation Fund, China (Grant No. 0901001B), and the Fundamental Research Fund for Central Universities (Grant Nos. 2010B09514 and 2010B29014).

ZnO nanorod arrays with tunable size and field emission properties on an ITO substrate achieved by an electrodeposition method

Gong Jiang-Feng(巩江峰)a)b)†, Dou Zhao-Ming(窦召明)a), Wang Zhi-Qiang(王志强) b), Zhang Bo(张博)a)b), Zhu Wei-Hua(朱卫华)a), Zhang Kai-Xiao(张开骁) a), Liu Ming-Yi(刘明熠)a), Zhu Hao(朱浩)c), and Zhou Jian-Feng(周剑锋)c)   

  1. a. Department of Physics, Hohai University, Nanjing 210098, China;
    b. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;
    c. College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
  • Received:2011-11-20 Revised:2011-12-05 Online:2012-05-01 Published:2012-05-01
  • Contact: Gong Jiang-Feng E-mail:jfgong@hhu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11004047), the China Postdoctoral Sustentation Fund (Grant No. 200904501062), Jiangsu Provincial Postdoctoral Sustentation Fund, China (Grant No. 0901001B), and the Fundamental Research Fund for Central Universities (Grant Nos. 2010B09514 and 2010B29014).

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摘要： In the present work, vertically aligned ZnO nanorod arrays with tunable size are successfully synthesized on nonseeded ITO glass substrates by a simple electrodeposition method. The effect of growth conditions on the phase, morphology, and orientation of the products are studied in detail by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). It is observed that the as-prepared nanostructures exhibit a preferred orientation along c axis, and the size and density of the ZnO nanorod can be controlled by changing the concentration of ZnCl2. Field emission properties of the as-synthesized samples with different diameters are also studied, and the results show that the nanorod arrays with a smaller diameter and appropriate rod density exhibit better emission properties. The ZnO nanorod arrays show a potential application in field emitters.

关键词: ZnO nanorod, microstructure, electrodeposition, field emission properties

Abstract: In the present work, vertically aligned ZnO nanorod arrays with tunable size are successfully synthesized on nonseeded ITO glass substrates by a simple electrodeposition method. The effect of growth conditions on the phase, morphology, and orientation of the products are studied in detail by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). It is observed that the as-prepared nanostructures exhibit a preferred orientation along c axis, and the size and density of the ZnO nanorod can be controlled by changing the concentration of ZnCl2. Field emission properties of the as-synthesized samples with different diameters are also studied, and the results show that the nanorod arrays with a smaller diameter and appropriate rod density exhibit better emission properties. The ZnO nanorod arrays show a potential application in field emitters.

Key words: ZnO nanorod, microstructure, electrodeposition, field emission properties

中图分类号:  (Nanocrystalline materials)

  • 81.07.Bc
81.15.Pq (Electrodeposition, electroplating) 79.70.+q (Field emission, ionization, evaporation, and desorption)