Photoelectrochemical behavior of Nb-doped TiO2 electrodes

被引：80

作者：

Emeline, AV ^{[1
]}

Furubayashi, Y ^{[1
]}

Zhang, XT ^{[1
]}

Jin, M ^{[1
]}

Murakami, T ^{[1
]}

Fujishima, A ^{[1
]}

机构：

[1] Kanagawa Acad Sci & Technol, Kawasaki, Kanagawa 2130012, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 51期

关键词：

D O I：

10.1021/jp055090e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photoelectrochemical behavior of degenerate Nb-doped TiO2 (Ti1-xNbxO2: x = 0: 0.01, 0.03, 0.06, 0.1) electrodes prepared by pulsed laser deposition on LaAlO3 (LAO) and SrTiO3 (STO) was examined, revealing that an increase in Nb concentration causes a significant decay of titania photoactivity. One reason for such behavior may be a Burstein-Moss effect, which leads to a blue shift of the spectral limit of photoactivity. Another reason typical for metal-doped photocatalysts is the increase of the efficiency of charge carrier recombination.

引用

页码：24441 / 24444

页数：4

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