Combinatorial discovery of anomalous substrate effect on the photochemical properties of transition metal-doped epitaxial SrTiO 3 heterostructures

T. Ohsawa, Ken Nakajima, Y. Matsumoto, H. Koinuma

研究成果: Conference article査読

15 被引用数 (Scopus)

抄録

Epitaxial Sr(V x Cr y Ti 1-x-y )O 3 (0≤x+y≤0.05) ternary composition spreads were grown on two different single crystal substrates, LaAlO 3 and Nb-doped SrTiO 3 , by use of combinatorial laser molecular beam epitaxy with a specially patterned slide masking plate. The photocatalytic activity on the composition spreads was evaluated by the photo-reduction of Ag + in an AgNO 3 aqueous solution to deposit Ag metal on the spreads. The V-doping effect was found to depend greatly on the substrate: the photodeposition of Ag was much enhanced in the composition region of SrV 0.05 Ti 0.95 O 3 only on the Nb-doped SrTiO 3 , but not on the LaAlO 3 and non-doped SrTiO 3 .

本文言語English
ページ(範囲)2603-2607
ページ数5
ジャーナルApplied Surface Science
252
7
DOI
出版ステータスPublished - 2006 1月 21
外部発表はい
イベントProceedings of the Third Japan-US Workshop on Combinatorial Material Science and Technology CMST-e SI -
継続期間: 2004 12月 72004 12月 10

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学
  • 物理学および天文学(全般)
  • 表面および界面
  • 表面、皮膜および薄膜

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