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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/9488

    Title: Electronic properties of zero-dimensional finite-sized nanographene
    Authors: 李道聖
    T.S. Li
    S.C. Chang
    Y.C. Chuang
    Kelan H.J.Wu
    M.F. Lin
    Contributors: 電機工程系
    Keywords: Electronic properties
    Electric field
    Date: 2009-12-21
    Issue Date: 2010-03-22 16:09:58 (UTC+8)
    Abstract: In this work, we use the tight-binding model to study the low-energy electronic properties of zerodimensional
    finite-sized nanographene subject to the influence of an electric field. State energies and
    energy spacings are found to oscillate significantly with the field strength. The state energies and band
    gaps also rely upon the type of the nanographene. The electric field will modify state energies, alter
    energy gaps, and induce the complete energy gap modulations. The band gap of the type-IV
    nanographene is always zero regardless of the value of the field strength. The variations of the state
    energies will be directly reflected in the density of states. The numbers and frequencies of the density of
    states’ divergent peaks are strongly dependent on the field strength and the type of the nanographene.
    Finally, the electron wave functions are found to be localized at certain zigzag lines at zero electric field.
    Relation: Physica B 404 (2009) 305–309
    Appears in Collections:[電機工程系所] 期刊論文

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