Nb doping of TiO2 nanotubes for an enhanced efficiency of dye-sensitized solar cells |
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| Authors: | Yang Min Kim Doohun Jha Himendra Lee Kiyoung Paul Jonathan Schmuki Patrik |
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| Affiliation: | Department of Materials Science, WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, D-91058 Erlangen, Germany. |
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| Abstract: | Nb-doped TiO(2) 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 TiO(2) nanotubes. IMVS measurements indicate the beneficial effect to be due to lower recombination losses. |
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