Growth of well-aligned carbon nanotubes on a large area of Co-Ni co-deposited silicon oxide substrate by thermal chemical vapor deposition

Cheol Jin Lee, Jeunghee Park, Seung Youl Kang, Jin Ho Lee

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

We have grown vertically well-aligned multiwalled carbon nanotubes (CNT) on a large area of cobalt-nickel (Co-Ni) co-deposited silicon oxide substrate by thermal chemical vapor deposition using C2H2 gas, at 950°C. The diameter of CNTs is in the range of 50-120 nm and the length is about 130 μm. The grown CNTs have a bamboo structure and closed tip with no catalytic particles inside. As the particle size of Co-Ni catalyst decreases, the vertical alignment is enhanced. The CNTs exhibits a low turn-on voltage of 0.8 V/μm with an emission current density of 0.1 μA cm-2.

Original languageEnglish
Pages (from-to)554-559
Number of pages6
JournalChemical Physics Letters
Volume323
Issue number5-6
DOIs
Publication statusPublished - 2000 Jun 23

ASJC Scopus subject areas

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

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