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

doi:10.1143/JJAP.43.775

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

創造理工学部

研究成果: Article › 査読

38 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
巻	43
号	2
DOI	https://doi.org/10.1143/JJAP.43.775
出版ステータス	Published - 2004 2月

ASJC Scopus subject areas

工学（全般）
物理学および天文学（全般）

文献へのアクセス

10.1143/JJAP.43.775

他のファイルとリンク

引用スタイル

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abstract = "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.",

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AB - 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.

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KW - Nb doping

KW - Photocatalysis

KW - Titanium dioxide

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