Charge transport effects in field emission from carbon nanotube-polymer composites
COLEMAN, JONATHAN NESBIT
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Citation:Smith R.C., Carey J.D., Murphy R.J., Blau W.J., Coleman J.N., Silva S.R.P., 'Charge transport effects in field emission from carbon nanotube-polymer composites' in Applied Physics Letters, 87, 26, (2005), 263105
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.
Series/Report no:Applied Physics Letters