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Improving the Field Emission from Carbon Nanotubes Through Chemical Functionalisation: A Quantifiable Approach

Carey, JD (2009) Improving the Field Emission from Carbon Nanotubes Through Chemical Functionalisation: A Quantifiable Approach JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 9 (11). pp. 6538-6541.

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Abstract

An enhancement of the electron emission current from carbon nanotubes (CNTs) can be achieved by increasing the local electric field or reduction of the potential barrier to emission. Chemical modification of the surface of CNTs is often used to achieve good dispersion but the effects on the field emission properties are often overlooked. We demonstrate that significant improvements in the current density of CNT-based arrays can be achieved through chemically induced changes to the nanotube work function. For a given current density the requirements for the local electric field and work function are calculated.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Authors :
AuthorsEmailORCID
Carey, JDUNSPECIFIEDUNSPECIFIED
Date : 1 November 2009
Identification Number : https://doi.org/10.1166/jnn.2009.1337
Uncontrolled Keywords : Science & Technology, Physical Sciences, Technology, Chemistry, Multidisciplinary, Nanoscience & Nanotechnology, Materials Science, Multidisciplinary, Physics, Applied, Physics, Condensed Matter, Chemistry, Science & Technology - Other Topics, Materials Science, Physics, Electron Field Emission, Carbon Nanotubes, Work Function modification, Chemical Functionalisation, FILMS, Fowler-Nordheim tunnelling
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 14:58
Last Modified : 28 Mar 2017 14:58
URI: http://epubs.surrey.ac.uk/id/eprint/7678

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