title: Photoelectrochemical behavior of Nb-doped TiO2 electrodes.
abstract: The photoelectrochemical behavior of degenerate Nb-doped TiO2 (Ti(1-x)Nb(x)O2: 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.
authors.affiliation: Kanagawa Academy of Science and Technology, Kawasaki 213-0012, Japan.
authors.forename: Alexei V
authors.initials: AV
authors.lastname: Emeline
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Furubayashi
authors.forename: Xintong
authors.initials: X
authors.lastname: Zhang
authors.forename: Ming
authors.initials: M
authors.lastname: Jin
authors.forename: Taketoshi
authors.initials: T
authors.lastname: Murakami
authors.forename: Akira
authors.initials: A
authors.lastname: Fujishima