CUED Publications database

Field emission site densities of nanostructured carbon

Cui, JB and Robertson, J and Milne, WI (2001) Field emission site densities of nanostructured carbon. Materials Research Society Symposium - Proceedings, 675. ISSN 0272-9172

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The field emission properties of nanostructured carbon films deposited by cathodic vacuum arc in a He atmosphere have been studied by measuring the emission currents and the emission site density. The films have an onset field of ∼ 3 V/μm. The emission site density is viewed on a phosphor anode and it increases rapidly with applied field. It is assumed that the emission occurs from surface regions with a range of field enhancement factors but with a constant work function. The field enhancement factor is found to have an exponential distribution.

Item Type: Article
Depositing User: Cron job
Date Deposited: 04 Feb 2015 23:07
Last Modified: 26 Mar 2015 01:43