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ZnO nanorod arrays with tunable size and field emission properties on an ITO substrate achieved by an electrodeposition method
- Source :
- Chinese Physics B. 21:068101
- Publication Year :
- 2012
- Publisher :
- IOP Publishing, 2012.
-
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.
Details
- ISSN :
- 16741056
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Chinese Physics B
- Accession number :
- edsair.doi...........efe7aaafd6aa04a341a152d6a51a427c