CUED Publications database

Novel field emission from graphene sheets supported by CNTs arrays

Qu, K and Zhang, X and Zhang, Y and Li, C and Cole, MT and Zhao, N and Shi, C and Ding, S and Ying, K and Lei, W and Wang, B and Milne, WI (2013) Novel field emission from graphene sheets supported by CNTs arrays. 14th IEEE International Vacuum Electronics Conference, IVEC 2013 - Proceedings.

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Abstract

A good quality graphene is transferred onto honeycomb-like CNTs arrays with inner supporting CNTs. The efficient field emission is demonstrated due to a high aspect ratio protrusions and graphene crack edges. A high efficient current density about 1.2 mA/cm2 at threshold electric field of 7.8 V/μm with a turn-on electric field of 1.8 V/μm at the current density of 10 μA/cm2 is observed due to high localized electric field. Stable field emission is tested in a vacuum chamber. The results are of significance to the development of Graphene based field emitters. © 2013 IEEE.

Item Type: Article
Uncontrolled Keywords: carbon nanotubes field emission graphene
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:10
Last Modified: 08 Dec 2014 02:17
DOI: 10.1109/IVEC.2013.6570956