Synthesis and characterization of brookite/anatase complex thin film

Chiaki Ohara, Teruhisa Hongo, Atsushi Yamazaki, Toshio Nagoya

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

TiO 2 films were prepared on a silicon or soda-glass substrate using a sol suspension. The TiO 2 film on the silicon substrate was composed of pure anatase phase and showed almost no contaminations. In contrast, the TiO 2 film on the soda-glass substrate was composed of anatase and brookite phases. The diffusion of Na into the TiO 2 film on the soda-glass substrate was observed by XPS, and Na was concentrated on the surface of the film. The yield of the brookite phase increased with decreasing distance from the surface of the film on the soda-glass substrate. Na promoted the formation of the brookite phase, although the preparative procedure was used for anatase synthesis.

Original languageEnglish
Pages (from-to)6619-6622
Number of pages4
JournalApplied Surface Science
Volume254
Issue number20
DOIs
Publication statusPublished - 2008 Aug 15

Keywords

  • Anatase
  • Brookite
  • Thin film
  • TiO

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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