淡江大學機構典藏:Item 987654321/27596
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/27596


    Title: Electronic structure of ZnO nanorods studied by angle-dependent x-ray absorption spectroscopy and scanning photoelectron microscopy
    Authors: Chiou, J. W.;Jan, J. C.;Tsai, H. M.;Bao, C. W.;Pong, W. F.;Tsai, M. H.;Hong, I. H.;Klauser, R.;Lee, J. F.;Wu, J. J.;Liu, S. C.
    Contributors: 淡江大學物理學系
    Date: 2004-05-03
    Issue Date: 2009-12-31 10:28:44 (UTC+8)
    Publisher: College Park: American Institute of Physics (AIP)
    Abstract: Angle-dependent x-ray absorption near-edge structure (XANES) and scanning photoelectron microscopy measurements were performed to differentiate local electronic structures at the tips and sidewalls of highly aligned ZnO nanorods. The overall intensity of the O K-edge XANES spectra is greatly enhanced for small photon incident angles. In contrast, the overall intensity of the Zn K-edge XANES is much less sensitive to the photon incident angle. Both valence-band photoemission and O K-edge XANES spectra show substantial enhancement of O 2p derived states near the valence band maximum and conduction band minimum, respectively. The spatially resolved Zn 3d core level spectra from tip and sidewall regions show the lack of chemical shift. All the results consistently suggest that the tip surfaces of the highly aligned ZnO nanorods are terminated by O ions and the nanorods are oriented in the [0001¯] direction. © 2004 American Institute of Physics.
    Relation: Applied Physics Letters 84(18), pp.3462-3464
    DOI: 10.1063/1.1737075
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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