Modeling the Field Emission Current Fluctuation in Carbon Nanotube Thin Films

Sinha, N and Roy Mahapatra, D and Yeow, JTW and Melnik, R (2007) Modeling the Field Emission Current Fluctuation in Carbon Nanotube Thin Films. In: NSTI Nanotech 2007 Conf., May 20-24, 2007, Santa Clara, CA, USA, May 20-24, 2007, Santa Clara, CA.

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Abstract

Owing to their distinct properties, carbon nanotubes (CNTs) have emerged as promising candidate for field emission devices. It has been found experimentally that the results related to the field emission performance show variability. The design of an efficient field emitting device requires the analysis of the variabilities with a systematic and multiphysics based modeling approach. In this paper, we develop a model of randomly oriented CNTs in a thin film by coupling the field emission phenomena, the electron-phonon transport and the mechanics of single isolated CNT. A computational scheme is developed by which the states of CNTs are updated in time incremental manner. The device current is calculated by using Fowler-Nordheim equation for field emission to study the performance at the device scale.

Item Type:	Conference Paper
Keywords:	carbon nanotube;field emission;electrodynamics;current density
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	22 Oct 2011 07:51
Last Modified:	22 Oct 2011 07:51
URI:	http://eprints.iisc.ac.in/id/eprint/41598

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