Interaction of C60 with silicon dangling bonds on the Si(111)-(7 × 7) surface

S. Suto, K. Sakamoto, Takanori Wakita, M. Harada, A. Kasuya

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We report here the measurements of vibrational excitation spectra of C60 molecules adsorbed on Si(111)-(7 × 7) and H-terminated Si(111)-δ(7 × 7) surfaces using high-resolution electron energy loss spectroscopy. Upon adsorption of C60 on Si(111)-(7 × 7), a shift to a lower energy is measured for the ν1 and ν4 vibrational modes, but no indication of softening is observed on the H-terminated Si(111)-δ(7 × 7) surface. These results show that the C60 molecules interact strongly with the dangling bonds of adatom on the (7 × 7) structure. From the softening of the vibrational modes, the amount of charge transfer is estimated to be (3 ± 1) electrons per C60 molecule on the Si(111)-(7 × 7).

Original languageEnglish
Pages (from-to)523-528
Number of pages6
JournalSurface Science
Volume402-404
Publication statusPublished - May 15 1998
Externally publishedYes

Fingerprint

Dangling bonds
Silicon
softening
Molecules
vibration mode
silicon
molecules
Adatoms
Electron energy loss spectroscopy
interactions
adatoms
Charge transfer
indication
energy dissipation
charge transfer
electron energy
Adsorption
adsorption
Electrons
shift

Keywords

  • Adatoms
  • Chemisorption
  • Electron energy loss spectroscopy
  • Fullerenes
  • Silicon
  • Silicon dangling bonds
  • Vibrations of adsorbed molecules

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Suto, S., Sakamoto, K., Wakita, T., Harada, M., & Kasuya, A. (1998). Interaction of C60 with silicon dangling bonds on the Si(111)-(7 × 7) surface. Surface Science, 402-404, 523-528.

Interaction of C60 with silicon dangling bonds on the Si(111)-(7 × 7) surface. / Suto, S.; Sakamoto, K.; Wakita, Takanori; Harada, M.; Kasuya, A.

In: Surface Science, Vol. 402-404, 15.05.1998, p. 523-528.

Research output: Contribution to journalArticle

Suto, S, Sakamoto, K, Wakita, T, Harada, M & Kasuya, A 1998, 'Interaction of C60 with silicon dangling bonds on the Si(111)-(7 × 7) surface', Surface Science, vol. 402-404, pp. 523-528.
Suto S, Sakamoto K, Wakita T, Harada M, Kasuya A. Interaction of C60 with silicon dangling bonds on the Si(111)-(7 × 7) surface. Surface Science. 1998 May 15;402-404:523-528.
Suto, S. ; Sakamoto, K. ; Wakita, Takanori ; Harada, M. ; Kasuya, A. / Interaction of C60 with silicon dangling bonds on the Si(111)-(7 × 7) surface. In: Surface Science. 1998 ; Vol. 402-404. pp. 523-528.
@article{cbde540aa91348dcbde116f40a505224,
title = "Interaction of C60 with silicon dangling bonds on the Si(111)-(7 × 7) surface",
abstract = "We report here the measurements of vibrational excitation spectra of C60 molecules adsorbed on Si(111)-(7 × 7) and H-terminated Si(111)-δ(7 × 7) surfaces using high-resolution electron energy loss spectroscopy. Upon adsorption of C60 on Si(111)-(7 × 7), a shift to a lower energy is measured for the ν1 and ν4 vibrational modes, but no indication of softening is observed on the H-terminated Si(111)-δ(7 × 7) surface. These results show that the C60 molecules interact strongly with the dangling bonds of adatom on the (7 × 7) structure. From the softening of the vibrational modes, the amount of charge transfer is estimated to be (3 ± 1) electrons per C60 molecule on the Si(111)-(7 × 7).",
keywords = "Adatoms, Chemisorption, Electron energy loss spectroscopy, Fullerenes, Silicon, Silicon dangling bonds, Vibrations of adsorbed molecules",
author = "S. Suto and K. Sakamoto and Takanori Wakita and M. Harada and A. Kasuya",
year = "1998",
month = "5",
day = "15",
language = "English",
volume = "402-404",
pages = "523--528",
journal = "Surface Science",
issn = "0039-6028",
publisher = "Elsevier",

}

TY - JOUR

T1 - Interaction of C60 with silicon dangling bonds on the Si(111)-(7 × 7) surface

AU - Suto, S.

AU - Sakamoto, K.

AU - Wakita, Takanori

AU - Harada, M.

AU - Kasuya, A.

PY - 1998/5/15

Y1 - 1998/5/15

N2 - We report here the measurements of vibrational excitation spectra of C60 molecules adsorbed on Si(111)-(7 × 7) and H-terminated Si(111)-δ(7 × 7) surfaces using high-resolution electron energy loss spectroscopy. Upon adsorption of C60 on Si(111)-(7 × 7), a shift to a lower energy is measured for the ν1 and ν4 vibrational modes, but no indication of softening is observed on the H-terminated Si(111)-δ(7 × 7) surface. These results show that the C60 molecules interact strongly with the dangling bonds of adatom on the (7 × 7) structure. From the softening of the vibrational modes, the amount of charge transfer is estimated to be (3 ± 1) electrons per C60 molecule on the Si(111)-(7 × 7).

AB - We report here the measurements of vibrational excitation spectra of C60 molecules adsorbed on Si(111)-(7 × 7) and H-terminated Si(111)-δ(7 × 7) surfaces using high-resolution electron energy loss spectroscopy. Upon adsorption of C60 on Si(111)-(7 × 7), a shift to a lower energy is measured for the ν1 and ν4 vibrational modes, but no indication of softening is observed on the H-terminated Si(111)-δ(7 × 7) surface. These results show that the C60 molecules interact strongly with the dangling bonds of adatom on the (7 × 7) structure. From the softening of the vibrational modes, the amount of charge transfer is estimated to be (3 ± 1) electrons per C60 molecule on the Si(111)-(7 × 7).

KW - Adatoms

KW - Chemisorption

KW - Electron energy loss spectroscopy

KW - Fullerenes

KW - Silicon

KW - Silicon dangling bonds

KW - Vibrations of adsorbed molecules

UR - http://www.scopus.com/inward/record.url?scp=0031617756&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031617756&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0031617756

VL - 402-404

SP - 523

EP - 528

JO - Surface Science

JF - Surface Science

SN - 0039-6028

ER -