1. Synthesis, microstructure and photoluminescence of well-aligned ZnO nanorods on Si substrate
- Author
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Miao, L., Ieda, Y., Tanemura, S., Cao, Y.G., Tanemura, M., Hayashi, Y., Toh, S., and Kaneko, K.
- Subjects
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ZINC oxide , *THIN films , *SUBLIMATION (Chemistry) , *TRANSMISSION electron microscopy , *ELECTRON diffraction - Abstract
Abstract: Well-aligned zinc oxide (ZnO) nanorods were densely grown on Si substrate using ZnO thin-film seed layer without any catalysts and/or additives by a simple solid–vapour phase thermal sublimation technique. The growth mechanism can be interpreted as self-catalyst of zinc particles based on vapour–solid (VS) mechanism. High-resolution transmission electron microscopy (HRTEM) image and selected area electron diffraction (SAED) pattern confirmed that the single-crystalline growth of the nanorods were preferentially along c-axis of hexagonal crystal system. High-crystal quality ZnO nanorods with strong near band edge emission centred at 380nm can be achieved on Si substrate by the introduction of sufficient oxygen during the nanorod growth processing. [Copyright &y& Elsevier]
- Published
- 2007
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