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Field emission from multiwall carbon nanotubes prepared by electrodeposition without the use of a dispersant

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Lyth, SM, Oyeleye, F, Curry, RJ, Davis, J and Silva, SRP (2006) Field emission from multiwall carbon nanotubes prepared by electrodeposition without the use of a dispersant. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 24 (3). pp. 1362-1364. [Journal article]

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DOI: 10.1116/1.2198855

Abstract

We present a technique of manufacturing multiwall carbon nanotube (MWNT) field emitters by a nickel electrodeposition process, without using a surfactant to disperse the MWNTs in solution. Sonication adequately disperses individual MWNTs throughout the solution and MWNTs can be deposited onto a copper substrate. However, over time there is a reduction of the free MWNT concentration in solution and an associated change in the morphology of the deposit. The initial concentration of MWNTs in solution also plays a crucial role in the morphology of the deposits. The threshold field of electron field emission measurements remained in the order of 20 V/mu m regardless of the deposition conditions. (c) 2006 American Vacuum Society.

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:14329
Deposited By:Professor James Davis
Deposited On:01 Jul 2010 09:24
Last Modified:18 Aug 2011 11:19

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