Electrical properties of buckled multiwalled carbon nanotube arrays in the diffusive regime

Singh, LT and Bhattacharyya, S and Singh, AK and Nanda, KK (2012) Electrical properties of buckled multiwalled carbon nanotube arrays in the diffusive regime. In: EPL, 99 (5).

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Abstract

We report the geometrical effect of graded buckled multiwalled carbon nanotube arrays on the electrical transport properties in the diffusive regime, via successive breakdown caused by the Joule heating. This breakdown occurs in the straighter region. Empirical relations involving the current-carrying ability, resistance, breakdown power, threshold voltage, diameter and length of carbon nanotube arrays are discussed on the basis of an extensive set of experimental data along with justification. The experimental results are corroborated by the density functional tight-binding calculations of electronic band structure. The band gap decreases as buckleness increases leading to the enhancement in the current-carrying ability and elucidating the role of buckleness in carbon nanotubes. Copyright (c) EPLA, 2012

Item Type:	Journal Article
Publication:	EPL
Publisher:	EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
Additional Information:	Copyright for this article belongs to the EPL Association
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	24 Jan 2013 05:14
Last Modified:	24 Jan 2013 05:14
URI:	http://eprints.iisc.ac.in/id/eprint/45284

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