Room-temperature growth of ion-induced carbon nanofibers: Effects of ion species

K. Yamaguchi, M. Kitazawa, Z. P. Wang, Y. Sugita, J. Tanaka, M. Tanemura, Y. Hayashi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Graphite surfaces were bombarded with Ne+, Ar+ and Xe+ ions at 450 eV-1 keV to induce the carbon nanofiber (CNF) growth at room temperature, and the dependence of size and numerical density of ion-induced CNFs on the ion species and ion energy was investigated in detail. The ion-sputtered surfaces were covered with densely distributed conical protrusions and aligned CNFs grew on the tips, except for the low-energy Xe+-sputtered surfaces. Longer CNFs grew by lighter-mass-ion irradiation, and finer CNFs formed by heavier-mass-ion bombardment. In addition, the higher the ion energy, the longer the length of the ion-induced CNFs. Because the size and numerical density were controllable by the ion-irradiation parameters, ion-induced CNFs were believed to be quite promising for myriad of applications such as high-resolution scanning probe microscope cantilevers, bio-cell manipulators and field emission source operating at low voltage.

Original languageEnglish
Pages (from-to)525-528
Number of pages4
JournalDiamond and Related Materials
Volume17
Issue number4-5
DOIs
Publication statusPublished - Apr 1 2008
Externally publishedYes

Keywords

  • Amorphous carbon
  • Ion bombardment
  • Nanofibers
  • Sputtering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Chemistry(all)
  • Mechanical Engineering
  • Materials Chemistry
  • Electrical and Electronic Engineering

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