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Field emission property of multi-walled carbon nanotubes with different carbon sources in a fluidized bed reactor

  • Seung Yong Son
  • , Yoong Lee
  • , Dong Hyun Lee
  • , Sang Done Kim
  • , Su Hwan Sung
  • , Sang Young Hong
  • , Shin Je Cho
  • Sungkyunkwan University
  • Korea Advanced Institute of Science and Technology
  • Kyungpook National University
  • Hanwha

Research output: Contribution to journalArticlepeer-review

Abstract

The carbon nanotubes (CNTs) synthesized at various reaction conditions (reaction temperature, gas environment, and the ratio of mixture gas) using catalytic chemical vapor deposition (CCVD) in a fluidized bed reactor have quite different properties according to their tube diameter and crystallinity. Macroscopic field emission properties of the CNT film have been determined by a vacuum field emission system that displays the integrated field emission using a phosphor ITO-glass screen. Field emission properties of multi-walled carbon nanotubes (MWCNTs) depend on their electrical conductivity and structural quality such as the tube diameter and crystallinity (ID/IG). The smaller the mean diameter and the higher the crystallinity of the CNTs, the better the field emission properties could be achieved.

Original languageEnglish
Pages (from-to)1188-1193
Number of pages6
JournalJournal of Physics and Chemistry of Solids
Volume69
Issue number5-6
DOIs
StatePublished - May 2008

Keywords

  • A. Nanostructures
  • B. Vapour deposition
  • C. Electron microscopy

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