Photocatalytic Property and Deep Levels of Nb-doped Anatase TiO2 Film Grown by Metalorganic Chemical Vapor Depostion

Takahira Miyagi*, Masayuki Kamei, Isao Sakaguchi, Takefumi Mitsuhashi, Atsushi Yamazaki

*この研究の対応する著者

研究成果: Article査読

41 被引用数 (Scopus)

抄録

A Nb-doped anatase TiO2 (Mb: 5 at%) film was grown on a SrTiO3(001) substrate by metalorganic chemical vapor deposition. Deep level transient spectroscopy analysis revealed that this film possessed two kinds of deep levels due to the Nb ions, which were found to exist at 0.32 eV and 0.67 eV below the bottom of the conduction band. The photocatalytic activity of this film was low compared with that of the undoped anatase film, suggesting that the deep levels acted as recombination centers of photoexcited electron-hole pairs.

本文言語English
ページ(範囲)775-776
ページ数2
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
43
2
DOI
出版ステータスPublished - 2004 2

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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