Fowler-Nordheim field emission from carbon nanotubes under intense electric field

S. Bhattacharya, Debashis De, S.C. Ghosh, K.P. Ghatak

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    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. Copyright © 2013 American Scientific Publishers. All rights reserved.
    Original languageEnglish
    Pages (from-to)664-668
    JournalJournal of Computational and Theoretical Nanoscience
    Volume10
    Issue number3
    DOIs
    Publication statusPublished - 2013

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