Initial stage of C60 film growth and reaction on Si(111)7×7 and graphite surfaces studied by HREELS-STM

Shozo Suto, A. Kasuya, C. W. Hu, A. Wawro, K. Sakamoto, T. Goto, Y. Nishina

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

We have investigated the structures and the vibrational properties of C60 thin films on Si(111)7×7 and graphite surfaces by the combined measurements of high-resolution electron-energy-loss spectroscopy (HREELS) and scanning tunnelling microscopy (STM); we refer to this combination as HREELS-STM. On the graphite surface, the C60 molecules make ordered films which show asymmetric dendrite-type growth. On the Si(111)7×7 surface, the C60 molecules form ordered films with small domains. At coverage lower than 1 monolayer, some of the energy-loss peaks due to the vibrational modes of a C60 molecule are shifted from the bulk loss peak on both surfaces. The energy shift indicates the interaction between C60 molecules and the Si(111)7×7 surface, and between C60 molecules and the πr-orbitals of the graphite surface, respectively.

Original languageEnglish
Pages (from-to)602-605
Number of pages4
JournalThin Solid Films
Volume281-282
Issue number1-2
DOIs
Publication statusPublished - 1996 Aug 1

Keywords

  • Carbon
  • Electron energy loss spectroscopy (EELS)
  • Scanning tunnelling microscopy (STM)
  • Silicon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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