Structural change of CO adsorbed on Pt(111) by laser heating: Time-resolved sum-frequency generation study

Satoshi Katano, Shinsaku Dobashi, Jun Kubota, Ken Onda, Akihide Wada, Satoru S. Kano, Kazunari Domen

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The IR-visible sum-frequency generation (IVSFG) method was used to perform time-resolved vibrational measurements of CO/Pt(111). Irradiation of intense picosecond laser pulses (35 ps, 1064 nm) resulted in a drop in intensity, redshift, and broadening of the on-top CO stretching peak, followed by recovery to the original peak shape on the order of hundreds of picoseconds. The transient behavior of the CO stretching signal was found to depend on the CO coverage. The transient spectra at saturation coverage consisted of a single peak, whereas at low coverage (0.25 ML) the line shape became asymmetric and each transient peak could be deconvoluted to the multiple components. The origin of the remarkable change in the transient spectral features at the 0.25 ML surface is discussed.

本文言語English
ページ(範囲)601-606
ページ数6
ジャーナルChemical Physics Letters
377
5-6
DOI
出版ステータスPublished - 2003 8月 22
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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