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    National Tsing Hua University Institutional Repository > 工學院  > 材料科學工程學系 > 期刊論文 >  Formation and evolution of self-assembled crystalline Si nanorings on (001)Si mediated by Au nanodots

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/52567

    Title: Formation and evolution of self-assembled crystalline Si nanorings on (001)Si mediated by Au nanodots
    Authors: He JH;Wu WW;Chueh YL;Hsin CL;Chen LJ;Chou LJ
    教師: 周立人
    Date: 2005
    Publisher: American Institute of Physics
    Relation: Applied Physics Letters , Volume 87 , Issue 22 , pp.87-89
    Keywords: QUANTUM RINGS
    Abstract: The growth of high-density Si nanorings has been achieved on ultrathin Au films on silicon substrate. Nanorings, which are gold-free and epitaxially grown on (001) Si, had a narrow distribution of height and diameter of 1.4 +/- 0.3 and 24.9 +/- 4.0 nm, with a density of 4.3x10(10) cm(-2). In situ ultrahigh-vacuum transmission electron microscopy revealed that the formation of nanorings involves a mechanism mediated by Au nanodots and evaporation of Au-Si eutectic liquid droplets at high temperature. The process promises to be an effective nanofabrication technique to produce high-density and uniform-sized nanorings.
    URI: http://www.aip.org/
    Appears in Collections:[材料科學工程學系] 期刊論文

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