Time-resolved photoelectron spectroscopy of oxidation on the Ti (0 0 0 1) surface

Y. Takakuwa, S. Ishidzuka, A. Yoshigoe, Y. Teraoka, Y. Mizuno, H. Tonda, T. Homma

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

High-resolution photoelectron spectroscopy using synchrotron radiation was applied for monitoring in real time the oxidation kinetics on the Ti(0 0 0 1) surface at 405 °C with dry O2 gas. The time evolution of O 1s photoelectron intensity showed a linear uptake curve up to ∼90 L followed by a sudden saturation up to ∼160 L and then a restart of the linear increase, indicating that O2 adsorption obeys a zero-order reaction scheme before and after the saturation. Corresponding to the first linear uptake and saturation, the surface core level shift component of Ti 2p decreased predominantly and disappeared completely, and appeared again after the saturation and remained persistently during TiO2 growth. Thus the zero-order reaction of O2 adsorption on the Ti(0 0 0 1) surface at 405 °C is concerned with the metallic Ti layer on the outermost surface.

Original languageEnglish
Pages (from-to)376-381
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume200
DOIs
Publication statusPublished - 2003 Jan

Keywords

  • Oxidation
  • Photoelectron spectroscopy
  • Synchrotron radiation
  • Titanium

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Fingerprint

Dive into the research topics of 'Time-resolved photoelectron spectroscopy of oxidation on the Ti (0 0 0 1) surface'. Together they form a unique fingerprint.

Cite this