Diameter-controlled growth of carbon nanotubes using thermal chemical vapor deposition

Cheol Jin Lee, Seung Chul Lyu, Young Rae Cho, Jin Ho Lee, Kyoung Ik Cho

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

The diameter and the growth rate of vertically aligned carbon nanotubes (CNTs) are controlled by modulating the size of catalytic particles using thermal chemical vapor deposition (CVD). The size of iron catalytic particles deposited on silicon oxide substrate is varied in a controlled manner by adjusting the condition of ammonia pretreatment. We found an inverse relation between the diameter and growth rate of carbon nanotubes. As the diameter increases, the compartment layers of bamboo-shaped carbon nanotubes appear more frequently, which is suitably explained by the base growth mechanism.

Original languageEnglish
Pages (from-to)245-249
Number of pages5
JournalChemical Physics Letters
Volume341
Issue number3-4
DOIs
Publication statusPublished - 2001 Jun 22
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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