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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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|
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