Electron emission from individual nitrogen-doped multi-walled carbon nanotubes
Article
Overview
Research
Identity
Additional Document Info
View All
Overview
abstract
This report describes the measurements on individual nitrogen-doped multi-walled carbon nanotubes mounted on tungsten support tips. Both the current-voltage characteristics and the energy spectrum of the emitted electron beam revealed field emission behavior similar to that shown for the best metallic emitters. The experimental results correspond with numerical calculations based on electron microscopy images of the nanotubes. The work function was derived and amounted to 5.0 eV. Finally, it is shown that the emission process is highly sensitive to small amounts of impurities deposited on the surface of the nanotube. © 2004 Elsevier B.V. All rights reserved.
publication date
funding provided via
published in
Research
keywords
carbon; metal; nitrogen; tungsten; article; calculation; electric current; electric potential; electron; electron beam; electron microscopy; energy; measurement; nanotube
Identity
Digital Object Identifier (DOI)
Additional Document Info
start page
end page
volume
issue