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Centimetre-Long Single Crystalline ZnO Fibres Prepared by Vapour Transportation |
| JI Zhen-Guo1,2, HAO Fang1, WANG Chao2, XI Jun-Hua2 |
| 1Institute of electronic information, Hangzhou Dianzi University, Hangzhou 3100182State Key Laboratory for Silicon Materials, Zhejiang University, Hangzhou 310027 |
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| Cite this article: |
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JI Zhen-Guo, HAO Fang, WANG Chao et al 2008 Chin. Phys. Lett. 25 3467-3469 |
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Abstract Centimetre-long ZnO fibres are synthesized by vapour transportation via thermal evaporation of ZnO powders. The growth process is carried out in a graphite crucible, in which ZnO powder is loaded as the source material, and a silicon wafer is positioned on the top of the crucible as the growth
substrate. During the growth process, the source temperature is kept at 800°C, and the substrate temperature is kept at 600°C. Typical growth time to obtain centimetre-long ZnO fibres is 5-10 hours. Scanning electron microscopy (SEM), x-ray diffraction (XRD), transmission electron microscopy (TEM), and selected area electron diffraction (SAED) measurement results show that ZnO fibres are single crystalline with high crystalline quality and very low defects concentration.
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| Keywords:
81.10.Bk
81.05.Zx
61.05.Cp
61.05.J
81.05.Hd
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Received: 18 January 2008
Published: 29 August 2008
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