Fowler-Nordheim Field Emission from Carbon Nanotubes Under Intense Electric Field

Bhattacharya, S and De, D and Ghosh, S and Ghatak, KP (2013) Fowler-Nordheim Field Emission from Carbon Nanotubes Under Intense Electric Field. In: Journal of Computational and Theoretical Nanoscience, 10 (3). pp. 1-5.

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Abstract

In this paper, we study the Fowler-Nordheim field emission (FNFE) from carbon nanotubes on the basis of a newly formulated electron dispersion law by considering the fact that the intense electric field needed for FNFE changes the band structure in a fundamental way. It has been found that the field emitted current increases with increasing electric field in oscillatory manner due to the appearance of van Hove singularities and exhibits spikes for particular values of the electric field where the singularity occurs. The numerical values of the field emitted current in all the cases vary widely and the determined by the chiral indices and the diameter in the respective cases. The results of this paper find three applications in the fields of nanoscience and technology.

Item Type:	Journal Article
Publication:	Journal of Computational and Theoretical Nanoscience
Publisher:	American Scientific Publishers
Additional Information:	Copyright of this article belongs to American Scientific Publishers.
Keywords:	Fowler-Nordheim Field Emission; Carbon Nanotubes; Intense Electric Field
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited:	10 Apr 2013 06:44
Last Modified:	12 Apr 2013 11:51
URI:	http://eprints.iisc.ac.in/id/eprint/46311

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