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A Simple Synthetic Route to Obtain Pure Trans-Ruthenium(II) Complexes for Dye-Sensitized Solar Cell Applications

Authors

  • Dr. Claudia Barolo,

    Corresponding author
    1. Dipartimento di Chimica, NIS Centre of Excellence, Università di Torino, Via Pietro Giuria 7, 10125, Torino (Italy), Fax: (+39) 011 670 7591
    • Claudia Barolo, Dipartimento di Chimica, NIS Centre of Excellence, Università di Torino, Via Pietro Giuria 7, 10125, Torino (Italy), Fax: (+39) 011 670 7591

      Filippo De Angelis, Istituto CNR di Scienze e Tecnologie Molecolari (ISTM) c/o Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, 06213, Perugia (Italy)

      Mohammed Khaja Nazeeruddin, Laboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, 1015, Lausanne (Switzerland), Fax: (+41) 21 6934114

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    • These authors contributed equally to the work.

  • Dr. Jun-Ho Yum,

    1. Laboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, 1015, Lausanne (Switzerland), Fax: (+41) 21 6934114
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    • These authors contributed equally to the work.

  • Dr. Emma Artuso,

    1. Dipartimento di Chimica, NIS Centre of Excellence, Università di Torino, Via Pietro Giuria 7, 10125, Torino (Italy), Fax: (+39) 011 670 7591
    2. DYEPOWER, Viale Castro Pretorio 122, 00185 Roma (Italy)
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  • Dr. Nadia Barbero,

    1. Dipartimento di Chimica, NIS Centre of Excellence, Università di Torino, Via Pietro Giuria 7, 10125, Torino (Italy), Fax: (+39) 011 670 7591
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  • Dr. Davide Di Censo,

    1. Laboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, 1015, Lausanne (Switzerland), Fax: (+41) 21 6934114
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  • Dr. Maria Grazia Lobello,

    1. Istituto CNR di Scienze e Tecnologie Molecolari (ISTM) c/o Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, 06213, Perugia (Italy)
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  • Dr. Simona Fantacci,

    1. Istituto CNR di Scienze e Tecnologie Molecolari (ISTM) c/o Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, 06213, Perugia (Italy)
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  • Dr. Filippo De Angelis,

    Corresponding author
    1. Istituto CNR di Scienze e Tecnologie Molecolari (ISTM) c/o Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, 06213, Perugia (Italy)
    • Claudia Barolo, Dipartimento di Chimica, NIS Centre of Excellence, Università di Torino, Via Pietro Giuria 7, 10125, Torino (Italy), Fax: (+39) 011 670 7591

      Filippo De Angelis, Istituto CNR di Scienze e Tecnologie Molecolari (ISTM) c/o Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, 06213, Perugia (Italy)

      Mohammed Khaja Nazeeruddin, Laboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, 1015, Lausanne (Switzerland), Fax: (+41) 21 6934114

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  • Prof. Michael Grätzel,

    1. Laboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, 1015, Lausanne (Switzerland), Fax: (+41) 21 6934114
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  • Prof. Mohammed Khaja Nazeeruddin,

    Corresponding author
    1. Laboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, 1015, Lausanne (Switzerland), Fax: (+41) 21 6934114
    • Claudia Barolo, Dipartimento di Chimica, NIS Centre of Excellence, Università di Torino, Via Pietro Giuria 7, 10125, Torino (Italy), Fax: (+39) 011 670 7591

      Filippo De Angelis, Istituto CNR di Scienze e Tecnologie Molecolari (ISTM) c/o Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, 06213, Perugia (Italy)

      Mohammed Khaja Nazeeruddin, Laboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, 1015, Lausanne (Switzerland), Fax: (+41) 21 6934114

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  • Prof. Guido Viscardi

    1. Dipartimento di Chimica, NIS Centre of Excellence, Università di Torino, Via Pietro Giuria 7, 10125, Torino (Italy), Fax: (+39) 011 670 7591
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Abstract

We report a facile synthetic route to obtain functionalized quaterpyridine ligand and its trans-dithiocyanato ruthenium complex, based on a microwave-assisted procedure. The ruthenium complex has been purified using a silica chromatographic column by protecting carboxylic acid groups as iso-butyl ester, which are subsequently hydrolyzed. The highly pure complex exhibits panchromatic response throughout the visible region. DFT/time-dependent DFT calculations have been performed on the ruthenium complex in solution and adsorbed onto TiO2 to analyze relative electronic and optical properties. The ruthenium complex endowed with the functionalized quaterpyridine ligand was used as a sensitizer in dye-sensitized solar cell yielding a short-circuit photocurrent density of more than 19 mA cm−2 with a broad incident photon to current conversion efficiency spectra ranging from 400 to 900 nm, exceeding 80 % at 700 nm.

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