Synthesis, microstructure and photoluminescence of well-aligned ZnO nanorods on Si substrate

L. Miao, Y. Ieda, S. Tanemura, Y. G. Cao, M. Tanemura, Y. Hayashi, S. Toh, K. Kaneko

    Research output: Contribution to journalArticlepeer-review

    24 Citations (Scopus)


    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 380 nm can be achieved on Si substrate by the introduction of sufficient oxygen during the nanorod growth processing.

    Original languageEnglish
    Pages (from-to)443-447
    Number of pages5
    JournalScience and Technology of Advanced Materials
    Issue number6
    Publication statusPublished - Sept 2007

    All Science Journal Classification (ASJC) codes

    • General Materials Science


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