Charge transport effects in field emission from carbon nanotube-polymer composites
COLEMAN, JONATHAN NESBIT
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Citation:R. C. Smith and J. D. Carey, R. J. Murphy, W. J. Blau, J. N. Coleman and S. R. P. Silva `Charge transport effects in field emission from carbon nanotube-polymer composites? in Virtual Journal of Nanoscale Science & Technology, 13, (1), 2006, p. 263105-1
Electron field emission measurements have been made on multiwall arc discharge carbon nanotubes embedded in a conjugated polymer host. Electron emission at low nanotube content is observed and attributed to an enhancement of the applied electric field at the polymer/nanotube/vacuum interface where the electron supply through the film is attributed to fluctuation induced tunneling in a disordered percolation network. A high network resistance is attributed to a polymer coating surrounding each nanotube, resulting in high resistance nanotube-polymer-nanotube tunnel junctions. The potential use of carbon nanotube-polymer composites for field emission based displays is also discussed.
Publisher:American Institute of Physics
Series/Report no:Virtual Journal of Nanoscale Science & Technology