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Origin of electric field enhancement in field emission from amorphous carbon thin films

Carey, JD, Forrest, RD and Silva, SRP (2001) Origin of electric field enhancement in field emission from amorphous carbon thin films APPLIED PHYSICS LETTERS, 78 (16). 2339 - 2341. ISSN 0003-6951

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Abstract

The observation of electron emission from amorphous carbon thin films at low applied electric fields is explained in terms of an enhancement of the field brought about by dielectric inhomogeneities within the film. These inhomogeneities originate from the differences between conductive, spatially localized sp2 C clusters surrounded by a more insulating sp3 matrix. By a more complete understanding of the concentration and distribution of the clusters, a generic model for field emission from amorphous carbon thin films can be developed. Extensions of this model to explain the emission properties of carbon nanotubes and carbon nanocomposite materials are also presented.

Item Type: Article
Uncontrolled Keywords: Science & Technology, Physical Sciences, Physics, Applied, Physics, DIAMOND-LIKE CARBON, THICKNESS
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:39
Last Modified: 28 Nov 2013 14:18
URI: http://epubs.surrey.ac.uk/id/eprint/1243

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