CUED Publications database

Stabilization of carbon nanotube field emitters

Mann, M and Teo, KBK and Milne, WI and El Gomati, MM and Wells, T and Tessner, T and Ovsyanko, M (2008) Stabilization of carbon nanotube field emitters. Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanoengineering and Nanosystems, 222. pp. 95-99. ISSN 1740-3499

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Abstract

Carbon nanotubes (CNTs) have been determined to be field emitters of high quality, but CNTs produced by chemical vapour deposition can produce emission currents with high instability and noise. This work finds that adsorbates and amorphous carbon deposited during the growth process are the primary contributors to field emission instability, and shows that burning off the amorphous carbon in air at 450 °C removes the amorphous carbon, resulting in stabilities of better than 3 per cent over 1 h. This work removes one of the major barriers to the use of CNTs in field emission devices.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Unnamed user with email sms67@cam.ac.uk
Date Deposited: 15 Dec 2015 12:43
Last Modified: 05 May 2016 23:43
DOI: 10.1243/17403499JNN146