Dissociative and non-dissociative adsorption of selenophene on Au (1 1 1) depending on the preparation method

H. Kondoh, I. Nakai, A. Nambu, T. Ohta, T. Nakamura, R. Kimura, M. Matsumoto

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Selenophene (C4H4Se) monolayers on Au(111) were prepared by two different methods: ultrahigh vacuum (UHV) and atmospheric vapor adsorption method. Near-edge X-ray absorption fine structure (NEXAFS) and X-ray photoelectron spectroscopy (XPS) results clearly indicate that the two monolayers are in different chemical forms; selenophene is molecularly adsorbed under UHV condition, while it is dissociatively chemisorbed via the C-Se bond cleavage under atmospheric condition. The dissociative chemisorption under atmospheric condition is interpreted in terms of the trapping mediated adsorption in the presence of a high-pressure ambient gas phase.

Original languageEnglish
Pages (from-to)466-472
Number of pages7
JournalChemical Physics Letters
Volume350
Issue number5-6
DOIs
Publication statusPublished - 2001 Dec 28
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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