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ZnO Nanorods Produced by the Method of Arc Discharge |
| WU Xu-Feng;XU Chun-Xiang;ZHU Guang-Ping;LING Yi-Ming |
| Advanced Photonics Center, Department of Electronic Engineering, Southeast University, Nanjing 210018 |
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| Cite this article: |
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WU Xu-Feng, XU Chun-Xiang, ZHU Guang-Ping et al 2006 Chin. Phys. Lett. 23 2165-2168 |
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Abstract ZnO nanorods are fabricated by arc discharge with ZnO powder as source materials. The sample is characterized by x-ray diffraction, Raman scattering spectra, scanning electron microscopy and high-resolution transmission electron microscopy. The ZnO nanorods exhibit single crystals with the hexagonal wurtzite structure. Many of them are tetrapod-like. The diameters range from several nanometres to about 100nm, and the main diameters of the nanorods is around 20nm. The length-to-diameter ratio is more than 5, and the grown directions are along the [001] axis. Photoluminescence spectra show a narrow ultraviolet emission at around 389nm and a broad green emission at around 520nm. The growth process can be interpreted by the vapour-solid mechanism.
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| Keywords:
61.46.+w
78.55.Hx
52.75.Rx
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Published: 01 August 2006
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