Nb doping of TiO2 nanotubes for an enhanced efficiency of dye-sensitized solar cells

Min Yang; Doohun Kim; Himendra Jha; Kiyoung Lee; Jonathan Paul; Patrik Schmuki

doi:10.1039/C0CC04993J

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Nb doping of TiO₂nanotubes for an enhanced efficiency of dye-sensitized solar cells†

Min Yang,^a Doohun Kim,^a Himendra Jha,^a Kiyoung Lee,^a Jonathan Paul^b and Patrik Schmuki*^a

Author affiliations

* Corresponding authors

^a Department of Materials Science, WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, D-91058 Erlangen, Germany
E-mail: schmuki@ww.uni-erlangen.de
Fax: +49 9131 852 7575
Tel: +49 9131 852 7582

^b Helmholtz-Zentrum Geesthacht, Zentrum für Material-und Küstenforschung GmbH, Max-Planck-straβe 1, Geesthacht, Germany
E-mail: jonathan.paul@gkss.de

Abstract

Nb-doped TiO₂ nanotube (with C_Nb < 1 wt%) layers were successfully fabricated by self-ordered electrochemical anodization of Ti–Nb alloys. When used in dye-sensitized solar cells the efficiency enhanced by up to 30% compared to non-doped TiO₂ nanotubes. IMVS measurements indicate the beneficial effect to be due to lower recombination losses.

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Article information

DOI: https://doi.org/10.1039/C0CC04993J
Article type: Communication
Submitted: 16 Nov 2010
Accepted: 06 Dec 2010
First published: 24 Dec 2010

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Chem. Commun., 2011,47, 2032-2034

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Nb doping of TiO₂ nanotubes for an enhanced efficiency of dye-sensitized solar cells

M. Yang, D. Kim, H. Jha, K. Lee, J. Paul and P. Schmuki, Chem. Commun., 2011, 47, 2032 DOI: 10.1039/C0CC04993J

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