Model calculation of the scanned field enhancement factor of CNTs

Amir Ahmad, V. K. Tripathi

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

The field enhancement factor of a carbon nanotube (CNT) placed in a cluster of CNTs is smaller than an isolated CNT because the electric field on one tube is screened by neighbouring tubes. This screening depends on the length of the CNTs and the spacing between them. We have derived an expression to compute the field enhancement factor of CNTs under any positional distribution of CNTs using a model of a floating sphere between parallel anode and cathode plates. Using this expression we can compute the field enhancement factor of a CNT in a cluster (non-uniformly distributed CNTs). This expression is used to compute the field enhancement factor of a CNT in an array (uniformly distributed CNTs). Comparison has been shown with experimental results and existing models.

Original languageEnglish
Article number031
Pages (from-to)3798-3801
Number of pages4
JournalNanotechnology
Volume17
Issue number15
DOIs
Publication statusPublished - Aug 14 2006
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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