1. ZnO nanorod arrays with tunable size and field emission properties on an ITO substrate achieved by an electrodeposition method.
- Author
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Gong Jiang-Feng, Dou Zhao-Ming, Wang Zhi-Qiang, Zhang Bo, Zhu Wei-Hua, Zhang Kai-Xiao, Liu Ming-Yi, Zhu Hao, and Zhou Jian-Feng
- Subjects
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ZINC oxide , *NANORODS , *FIELD emission , *INDIUM tin oxide , *SUBSTRATES (Materials science) , *ELECTROPLATING , *X-ray diffraction , *CRYSTAL growth - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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