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Carbon nanotube mat as substrate for ZnO nanotip field emitters

Sugavaneshwar, RP and Nagao, T and Nanda, KK (2012) Carbon nanotube mat as substrate for ZnO nanotip field emitters. In: RSC Advances , 2 (7). pp. 2713-2716.

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Abstract

We have reported the synthesis of ZnO nanotips on a multi walled carbon nanotube (MWCNT) mat by a vapour transport process. This combination of ZnO nanotips and a MWCNT mat exhibit ideal field emission behaviour. The turn on field and threshold field is found to be 0.34 and 1.5 V mu m(-1), respectively. The low threshold field is due to the good adherence of the ZnO nanotips on the MWCNT mat. The field enhancement factor is found to be 5 x 10(2) which is in agreement with the intrinsic field emission factor of ZnO nanotips. The emission current is found to be highly stable even at moderate vacuum.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 18 Apr 2012 05:22
Last Modified: 18 Apr 2012 05:22
URI: http://eprints.iisc.ernet.in/id/eprint/44316

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