Low-temperature synthesis of ZnO nanonails
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- 作者：Xubo Song ; Yaohua Zhang ; Jie Zheng ; Xingguo Li
- 关键词：A. Nanostructures ; B. Vapor deposition ; C. ZnO
- 刊名：Journal of Physics and Chemistry of Solids
- 出版年：2007
- 出版时间：September 2007
- 年：2007
- 卷：68
- 期：9
- 页码：1681-1684
- 全文大小：1270 K
文摘
Wurtzite ZnO nanonails on silicon substrate were successfully synthesized by thermal vapor transport and condensation method at a low temperature without a metal catalyst. Pure Zn powders were used as raw material and O2/Ar powders as source gas. The products were characterized by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The results show that the deposited nanostructures include aligned ZnO nanonails. The ZnO nanonails, with crystalline cap and small-diameter shafts, grow along the c-axis. The optical properties have been revealed by photoluminescence spectra. We considered that the ZnO nanonails growth is a vapor–solid process.