Morphology and Growth Process of Bat-like ZnO Crystals by Thermal Evaporation |
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Authors: | Pin Gao Kai Wang Chao Huang Lu Meng Fa-qiang Xu |
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Affiliation: | National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China |
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Abstract: | A novel bat-like ZnO nanostructure was synthesized on the silicon substrate by simple ther-mal evaporation of zinc powders without any catalyst. Each bat-like nanorod ("nanobat") is composed of a hexagonal head, a continuous neck and a thin handle. High-resolution transmission electron microscopy and selected area electron di raction results reveal the single-crystalline feature and the growing direction along [0001] of the nanobat. The vapor-solid mechanism was found suitable to explain the growth process of the nanobat and a schematic model was proposed in detail based on the experimental results. |
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Keywords: | ZnO Thermal evaporation Nanostructure Growth process |
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