Selective synthesis of carbon nanotubes and multi-layer graphene by controlling catalyst thickness

Daiyu Kondo, Katsunori Yagi, Motonobu Sato, Mizuhisa Nihei, Yuji Awano, Shintaro Sato, Naoki Yokoyama

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

Selective synthesis of carbon nanotubes (CNTs) and graphene was achieved by hot-filament chemical vapor deposition (CVD) using iron films as a catalyst at a temperature of 620 °C. The selective synthesis was performed in a very simple way, just by changing the catalyst thickness under the same CVD conditions. Only CNTs were obtained with Fe films of 5 nm and less, while multi-layer graphene was formed with the catalyst films of 20 nm and more. The thickness of multi-layer graphene can also be controlled by controlling the thickness of the catalyst further.

Original languageEnglish
Pages (from-to)294-300
Number of pages7
JournalChemical Physics Letters
Volume514
Issue number4-6
DOIs
Publication statusPublished - 2011 Oct 6
Externally publishedYes

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Selective synthesis of carbon nanotubes and multi-layer graphene by controlling catalyst thickness'. Together they form a unique fingerprint.

Cite this