Towards Compatibility between Ruthenium Sensitizers and Cobalt Electrolytes in Dye-Sensitized Solar Cells

Authors

  • Dr. Lauren E. Polander,

    1. Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Dr. Aswani Yella,

    1. Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Basile F. E. Curchod,

    1. Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Negar Ashari Astani,

    1. Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Dr. Joël Teuscher,

    1. Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Rosario Scopelliti,

    1. Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Dr. Peng Gao,

    1. Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Dr. Simon Mathew,

    1. Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Prof. Jacques-E. Moser,

    1. Group for Photochemical Dynamics, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Dr. Ivano Tavernelli,

    1. Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Prof. Ursula Rothlisberger,

    1. Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Prof. Michael Grätzel,

    1. Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Dr. Md. Khaja Nazeeruddin,

    1. Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • Dr. Julien Frey

    Corresponding author
    1. Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
    • Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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  • We acknowledge financial support for this work from Solvay SA and the European Community’s Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 281063 of the Powerweave project. J.T. thanks the Swiss National Science Foundation for financial support (200020_143908). Support from the Swiss National Science Foundation (200020-130082) and the NCCR-MUST interdisciplinary research program is also gratefully acknowledged. J.F. is grateful to Dr. E. Baranoff (University of Birmingham) for his invaluable mentoring.

Abstract

original image

Ruthenium and Co: Ruthenium(II) complexes remain prime candidates for dye-sensitized solar applications; however, current ruthenium sensitizers are not compatible with cobalt(II/III) electrolytes. Herein, the effect of surface insulation on device efficiency is studied by comparing two cyclometalated tris-heteroleptic ruthenium(II) complexes. This approach demonstrates a general principle that leads to unprecedented efficiency for a ruthenium(II) sensitizer used in combination with a cobalt electrolyte.

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