Vibrational modes of c6o fullerene on si(111)7×7 surface: estimation of charge transfer from silicon dangling bonds to c60 molecules

Shozo Suto, Atsuo Kasuya, Osamu Ikeno, Chang Wu Hu, Andrzej Wawro, Ryusuke Nishitani, Takenari Goto, Yuichiro Nishina

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We have investigated vibrational modes of C60 monolayer film adsorbed on the Si(111)7 × 7 surface using high-resolution electron-energy-loss spectroscopy in combination with scanning tunneling microscopy. The differences in energies and in oscillator strengths from a thick C60 film (i.e., bulk C60) are discussed in terms of the charge transfer from silicon dangling bonds to C60 molecules. The amount of charge transfer is estimated to be 1 ± 1 electron(s) compared with the infrared absorption spectra of alkaline-doped C60 fullerides and with the weak electron- molecular-vibration coupling calculation.

Original languageEnglish
Pages (from-to)1489-1492
Number of pages4
JournalJapanese Journal of Applied Physics
Volume33
Issue number10B
DOIs
Publication statusPublished - 1994 Jan 1

Keywords

  • C
  • Fullerenes
  • HREELS
  • Si(111)
  • STM

ASJC Scopus subject areas

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

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