High-Aspect-Ratio Dye-Sensitized Solar Cells Based on Robust, Fast-Growing TiO2 Nanotubes

Authors

  • Seulgi So,

    1. Department of Materials Science, WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
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  • Kiyoung Lee,

    1. Department of Materials Science, WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
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  • Prof. Dr. Patrik Schmuki

    Corresponding author
    1. Department of Materials Science, WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
    • Department of Materials Science, WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
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Abstract

original image

Get attached: The mechanical attachment of TiO2 nanotube layers to a substrate can be a determining factor for the performance of these layers in dye-sensitized solar cells (DSSCs). Self-organized TiO2 nanotube layers grown in an electrolyte that contained lactic acid are shown to have considerably improved anchoring on the Ti metal substrate, which allows the construction of stable and efficient solar cells with >50 μm nanotube length (see figure).

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