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

^*Corresponding author for this work

School of Creative Science and Engineering

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

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.

Original language	English
Pages (from-to)	775-776
Number of pages	2
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	43
Issue number	2
DOIs	https://doi.org/10.1143/JJAP.43.775
Publication status	Published - 2004 Feb

Keywords

Anatase
DLTS
Deep level
MOCVD
Nb doping
Photocatalysis
Titanium dioxide

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.43.775

Cite this

Photocatalytic Property and Deep Levels of Nb-doped Anatase TiO₂ Film Grown by Metalorganic Chemical Vapor Depostion. / Miyagi, Takahira; Kamei, Masayuki; Sakaguchi, Isao et al.
In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 43, No. 2, 02.2004, p. 775-776.

Research output: Contribution to journal › Article › peer-review

@article{879be2f8475b4473ae6ebf966b7e38b5,

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

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.",

keywords = "Anatase, DLTS, Deep level, MOCVD, Nb doping, Photocatalysis, Titanium dioxide",

author = "Takahira Miyagi and Masayuki Kamei and Isao Sakaguchi and Takefumi Mitsuhashi and Atsushi Yamazaki",

year = "2004",

month = feb,

doi = "10.1143/JJAP.43.775",

language = "English",

volume = "43",

pages = "775--776",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "2",

}

TY - JOUR

T1 - Photocatalytic Property and Deep Levels of Nb-doped Anatase TiO2 Film Grown by Metalorganic Chemical Vapor Depostion

AU - Miyagi, Takahira

AU - Kamei, Masayuki

AU - Sakaguchi, Isao

AU - Mitsuhashi, Takefumi

AU - Yamazaki, Atsushi

PY - 2004/2

Y1 - 2004/2

N2 - 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.

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.

KW - Anatase

KW - DLTS

KW - Deep level

KW - MOCVD

KW - Nb doping

KW - Photocatalysis

KW - Titanium dioxide

UR - http://www.scopus.com/inward/record.url?scp=2142639503&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2142639503&partnerID=8YFLogxK

U2 - 10.1143/JJAP.43.775

DO - 10.1143/JJAP.43.775

M3 - Article

AN - SCOPUS:2142639503

SN - 0021-4922

VL - 43

SP - 775

EP - 776

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

IS - 2

ER -