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    Title: Enhancement of electron field emission of nitrogenated carbon nanotubes on chlorination
    Authors: Ray, S. C.;Palnitkar, U.;Pao, C. W.;Tsai, H. M.;Pong, W. F.;Lin, I-Nan;Papakonstantinou, P.;Chen, L. C.;Chen, K. H.
    Contributors: 淡江大學物理學系
    Keywords: Nitrogenated Carbon Nanotubes (N-CNTs);Chlorinated nitrogenated carbon nanotube (N-CNTs:Cl);Electron Field Emission (EFE)
    Date: 2009-02
    Issue Date: 2010-02-23 14:27:24 (UTC+8)
    Publisher: Lausanne: Elsevier S.A.
    Abstract: Multi-wall nitrogenated carbon nanotubes (N-CNTs) are modified by the chlorine–plasma treatment (N-CNTs:Cl) and hence studied their field emission characteristics. It is observed that the turn-on voltage of N-CNTs is decreased from ~ 1.0 V/µm to ~ 0.875 V/µm on chlorination. The current density is enhanced from 1.3 mA/cm2 (N-CNTs) to ~ 15 mA/cm2 (N-CNTs:Cl) at an electric field of 1.9 V/µm. The X-ray absorption near edge structure spectra revels, the formation of different bonding of chlorine with carbon and nitrogen presence in the N-CNTs during the process of chlorine–plasma treatment by the charge transfer (or else) that increase the density of free charge carriers and hence enhanced the field emission characteristics of N-CNTs:Cl.
    Relation: Diamond and Related Materials 18(2-3), pp.457-460
    DOI: 10.1016/j.diamond.2008.07.016
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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