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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27696


    Title: Electronic structure and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies
    Authors: Pong, Way-faung;Ray, S. C.;Pao, C. W.;Tsai, H. M.;Chiou, J. W.;Chen, C. W.;Tsai, M. H.;Papakonstantinou, P.;Chen, L. C.;Chen, K. H.;Graham, G. W.
    Contributors: 淡江大學物理學系
    Date: 2007-05-07
    Issue Date: 2009-12-31 10:38:01 (UTC+8)
    Publisher: College Park: American Institute of Physics (AIP)
    Abstract: The electronic and bonding properties of nitrogenated carbon nanotubes (N-CNTs) exposed to chlorine plasma were investigated using C and N K-edge x-ray absorption near-edge structure (XANES) and scanning photoelectron microscopy (SPEM). The C and N K-edge XANES spectra of chlorine-treated N-CNTs consistently reveal the formation of pyridinelike N-CNTs by the observation of 1s→π*(e2u) antibonding and 1s→π*(b2g) bonding states. The valence-band photoemission spectra obtained from SPEM images indicate that chlorination of the nanotubes enhances the C–N bonding. First-principles calculations of the partial densities of states in conjunction with C K-edge XANES data identify the presence of C–Cl bonding in chlorine treated N-CNTs.
    Relation: Applied Physics Letters 90(19), pp.192107(3pages)
    DOI: 10.1063/1.2737392
    Appears in Collections:[物理學系暨研究所] 期刊論文

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