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Increased photocurrent response in Nb-doped TiO2 nanotubes
Journal article   Peer reviewed

Increased photocurrent response in Nb-doped TiO2 nanotubes

Min Yang, Himendra Jha, Ning Liu and Patrik Schmuki
Journal of materials chemistry, Vol.21(39), pp.15205-15208
01/01/2011
DOI: https://doi.org/10.1039/c1jm12961a

Abstract

Chemistry Chemistry, Physical Materials Science Materials Science, Multidisciplinary Physical Sciences Science & Technology Technology
Nb-doped TiO2 nanotube (NT) layers were grown by electro-chemical anodization of Ti-Nb alloys. To successfully activate Nb doping the oxide tubes need to be annealed at sufficiently high temperatures (similar to 650 degrees C). For tubes doped with 0.1 wt% Nb not only a considerable increase in the electrical conductivity but also a significantly enhanced photocurrent (superior to any pure TiO2 nanotube layer (anatase or rutile)) was obtained.

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