Wet chemically prepared rutile TiO2(110) and TiO2(011): Substrate preparation for surface studies under non-UHV conditions

Research output: Contribution to journalArticle

  • External authors:
  • M. H M Ahmed
  • F. P. Lydiatt
  • D. Chekulaev
  • P. L. Wincott
  • J. H. Jang
  • S. Baldelli
  • W. S. Walters

Abstract

© 2014 Elsevier B.V.A procedure for wet chemical preparation of TiO2 single crystal surfaces is detailed. The potential of this procedure is demonstrated through application to rutile-TiO2(110) and rutile-TiO2(011) substrates. Characterisation with atomic force microscopy, low energy electron diffraction, auger electron spectroscopy, and vibrational sum frequency spectroscopy indicates that flat, well-ordered, carbon-free surfaces can be generated. Notably, in contrast to the (2 × 1) low energy electron diffraction pattern observed for TiO2(011) prepared in ultra-high vacuum, wet chemical preparation results in a (4 × 1) unit cell; wet chemically prepared TiO2(110) displays an unreconstructed (1 × 1) surface.

Bibliographical metadata

Original languageEnglish
Pages (from-to)41-45
Number of pages4
JournalSurface Science
Volume630
DOIs
Publication statusPublished - 2014

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