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Influence of sp(2) clusters on the field emission properties of amorphous carbon thin films

Carey, JD, Forrest, RD, Khan, RUA and Silva, SRP (2000) Influence of sp(2) clusters on the field emission properties of amorphous carbon thin films APPLIED PHYSICS LETTERS, 77 (13). 2006 - 2008. ISSN 0003-6951

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Abstract

The influence of the concentration and size of sp2 carbon clusters on the field emission properties of hydrogenated amorphous carbon thin films is investigated. In combination with electron paramagnetic resonance and optical measurements, it is shown that the trend in the threshold field for emission for films deposited under certain conditions can be explained in terms of improvements in the connectivity between sp2 clusters. These clusters are believed to be located near the Fermi level, and the connectivity is primarily determined by the cluster size and concentration, which in turn is determined by the choice of deposition conditions. Details of the appropriate emission mechanisms for different types of deposited carbon films are discussed.

Item Type: Article
Uncontrolled Keywords: Science & Technology, Physical Sciences, Physics, Applied, Physics, DIAMOND-LIKE CARBON, HYDROGENATED CARBON, CONDUCTIVITY
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: 29 Nov 2013 09:29
URI: http://epubs.surrey.ac.uk/id/eprint/1236

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