Characterization of C60 films polymerized by ion irradiation

Kazumasa Narumi, Seiji Sakai, Hiroshi Naramoto, Koki Takanashi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Polymerization of C60 thin films by 7-MeV C 2+ ion irradiation is studied with Raman spectroscopy and X-ray diffraction (XRD). Raman analysis reveals that polymerization of the C60 molecules that have survived destruction by ion bombardment proceeds with further irradiation; after irradiation with 1×10 16 /cm 2 , most of the surviving molecules have been polymerized. XRD analysis shows that reflection angles of 111 and 222 in an fcc crystal of C60 shift to higher angles with the increasing ion fluence. This is due to the contraction of the intermolecular distance induced by the polymerization and the contraction amounts to 4% after the irradiation with 1×10 16 /cm 2 .

Original languageEnglish
Pages (from-to)429-434
Number of pages6
JournalFullerenes Nanotubes and Carbon Nanostructures
Volume14
Issue number2-3
DOIs
Publication statusPublished - 2006 Dec 1

Keywords

  • C
  • C polymer
  • Ion irradiation
  • Raman spectroscopy
  • X-ray diffraction analysis

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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