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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/28144


    Title: Raman scattering and band-gap variations of Al-doped ZnO nanoparticles synthesized by a chemical colloid process
    Authors: Lo,SS;Huang,D;Tu,CH;Hou,CH;Chen,CC
    Contributors: 光電科學研究所
    Keywords: THIN-FILMS;PHOTOLUMINESCENCE;ARRAYS
    Date: 2009
    Issue Date: 2010-06-29 19:42:26 (UTC+8)
    Publisher: 中央大學
    Abstract: This study synthesizes Al-doped ZnO (AZO) nanoparticles using a chemical colloid process. Raman scattering analysis shows that Al doping increases the lattice defects and induces Raman vibration modes of 651 cm(-1). The Raman shift of the active mode E-2 (high) of AZO nanoparticles shows the presence and increase in the stress in nanoparticles when the Al dopant concentration increases. Room-temperature photoluminescence (RT-PL) spectra of synthesized AZO nanoparticles exhibit strong UV emissions near the band edges. The RT-PL peak shifts to a higher photon energy region as the Al concentration increases, indicating a broadening of the band gap.
    Relation: JOURNAL OF PHYSICS D-APPLIED PHYSICS
    Appears in Collections:[光電科學研究所] 期刊論文

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