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.
- Nitrogenated Carbon Nanotubes (N-CNTs)
- Chlorinated nitrogenated carbon nanotube (N-CNTs:Cl)
- Electron Field Emission (EFE)
Ray, SC., Palnitkar, U., Pao, CW., Tsai, HM., Pong, WF., Lin, IN., ... Chen, KH. (2009). Enhancement of electron field emission of nitrogenated carbon nanotubes on chlorination. Diamond and Related Materials, 18(2-3), 457-460. https://doi.org/10.1016/j.diamond.2008.07.016