Ray, SC, Palnitkar, U, Pao, CW, Tsai, HM, Pong, WF, Lin, IN, Papakonstantinou, P, Chen, LC and Chen, KH (2009) Enhancement of electron field emission of nitrogenated carbon nanotubes on chlorination. DIAMOND AND RELATED MATERIALS, 18 (2-3). pp. 457-460. [Journal article]
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Multi-wall nitrogenated carbon nanotubes (N-CNTs) are modified by the chlorine-plasma treatment (N-CNTs: CI) and hence studied their field emission characteristics. It is observed that the turn-on voltage of N-CNTs is decreased from similar to 1.0 V/mu m to -0.875 V/mu m on chlorination. The current density is enhanced from 1.3 mA/cm(2) (N-CNTs) to similar to 15 mA/cm(2) (N-CNTs:Cl) at an electric field of 1.9 V/mu m. 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. (c) 2008 Elsevier B.V. All rights reserved.
|Item Type:||Journal article|
|Keywords:||Nitrogenated Carbon Nanotubes (N-CNTs); Chlorinated nitrogenated carbon nanotube (N-CNTs:Cl); Electron Field Emission (EFE)|
|Faculties and Schools:||Faculty of Computing & Engineering|
Faculty of Computing & Engineering > School of Engineering
|Research Institutes and Groups:||Engineering Research Institute|
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
|Deposited By:||Professor Pagona Papakonstantinou|
|Deposited On:||13 Jan 2010 09:49|
|Last Modified:||29 Apr 2014 14:48|
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