Morphology and size of ion induced carbon nanofibers: Effect of ion incidence angle, sputtering rate, and temperature

Mohd Zamri Yusop, Kohei Yamaguchi, Takahito Suzuki, Pradip Ghosh, Akari Hayashi, Yasuhiko Hayashi, Masaki Tanemura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Graphite surfaces were bombarded with oblique Ar+ ions at 1 keV to induce the carbon nanofiber (CNF) growth at room temperature and at high temperature (300 °C), and their dependence of length, diameter and number density on ion-incidence angle and sputtering rate was investigated in detail. The sputtered surface ion-irradiated at normal incidence produced huge cones and rod-like structures. It was found that some of the cones possessed the non-aligned thick carbon fibers on the top. By contrast, obliquely ion-irradiation induced the formation of densely distributed CNF-tipped cones. The higher ion-incidence angle produced CNF of smaller diameter and high fabrication temperature favors the formation of longer fiber with higher numerical density. In addition, the number density of the CNF-tipped cones strongly depended upon the ion-incidence angle rather than the sputtering rate. Thus, the diameter, length and number density of CNFs were strongly dependent upon the ion-irradiation parameters. It is believed that myriad of applications is possible with ion-induced CNFs by selecting the suitable ion-irradiation parameters.

Original languageEnglish
Article number01AF10
JournalJapanese Journal of Applied Physics
Volume50
Issue number1 PART 2
DOIs
Publication statusPublished - Jan 2011
Externally publishedYes

Fingerprint

Carbon nanofibers
Sputtering
incidence
sputtering
Cones
carbon
cones
Ions
Ion bombardment
ion irradiation
ions
Temperature
temperature
carbon fibers
Carbon fibers
Graphite
rods
graphite
Fabrication
fabrication

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Morphology and size of ion induced carbon nanofibers : Effect of ion incidence angle, sputtering rate, and temperature. / Yusop, Mohd Zamri; Yamaguchi, Kohei; Suzuki, Takahito; Ghosh, Pradip; Hayashi, Akari; Hayashi, Yasuhiko; Tanemura, Masaki.

In: Japanese Journal of Applied Physics, Vol. 50, No. 1 PART 2, 01AF10, 01.2011.

Research output: Contribution to journalArticle

Yusop, Mohd Zamri ; Yamaguchi, Kohei ; Suzuki, Takahito ; Ghosh, Pradip ; Hayashi, Akari ; Hayashi, Yasuhiko ; Tanemura, Masaki. / Morphology and size of ion induced carbon nanofibers : Effect of ion incidence angle, sputtering rate, and temperature. In: Japanese Journal of Applied Physics. 2011 ; Vol. 50, No. 1 PART 2.
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