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Ferrocene Derivatives Functionalized with Donor/Acceptor (Hetero)Aromatic Substituents: Tuning of Redox Properties

Author

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  • Norberto Manfredi

    (Department of Materials Science and Solar Energy Research Centre MIB-SOLAR, University of Milano-Bicocca, and INSTM Milano-Bicocca Research Unit, Via Cozzi 55, 20125 Milan, Italy)

  • Cristina Decavoli

    (Department of Materials Science and Solar Energy Research Centre MIB-SOLAR, University of Milano-Bicocca, and INSTM Milano-Bicocca Research Unit, Via Cozzi 55, 20125 Milan, Italy)

  • Chiara L. Boldrini

    (Department of Materials Science and Solar Energy Research Centre MIB-SOLAR, University of Milano-Bicocca, and INSTM Milano-Bicocca Research Unit, Via Cozzi 55, 20125 Milan, Italy)

  • Carmine Coluccini

    (Department of Materials Science and Solar Energy Research Centre MIB-SOLAR, University of Milano-Bicocca, and INSTM Milano-Bicocca Research Unit, Via Cozzi 55, 20125 Milan, Italy)

  • Alessandro Abbotto

    (Department of Materials Science and Solar Energy Research Centre MIB-SOLAR, University of Milano-Bicocca, and INSTM Milano-Bicocca Research Unit, Via Cozzi 55, 20125 Milan, Italy)

Abstract

A series of functionalized ferrocene derivatives carrying electron-donor and electron-withdrawing (hetero)aromatic substituents has been designed as potential alternative electrolyte redox couples for dye-sensitized solar cells (DSSC). The compounds have been synthesized and fully characterized in their optical and electrochemical properties. A general synthetic approach that implies the use of a microwave assisted Suzuki coupling has been developed to access a significative number of compounds. The presence of different electron-rich and electron-poor substituents provided fine tuning of optical properties and energy levels. HOMO and LUMO energy values showed that the substitution of one or two cyclopentadienyl rings of ferrocene can be successfully exploited to increase the maximum attainable voltage from a standard DSSC device using TiO 2 as a semiconductor, opening the way to highly efficient, non-toxic, and cheap redox shuttles to be employed in solar energy technologies.

Suggested Citation

  • Norberto Manfredi & Cristina Decavoli & Chiara L. Boldrini & Carmine Coluccini & Alessandro Abbotto, 2020. "Ferrocene Derivatives Functionalized with Donor/Acceptor (Hetero)Aromatic Substituents: Tuning of Redox Properties," Energies, MDPI, vol. 13(15), pages 1-12, August.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:15:p:3937-:d:393151
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    References listed on IDEAS

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    1. Jun-Ho Yum & Etienne Baranoff & Florian Kessler & Thomas Moehl & Shahzada Ahmad & Takeru Bessho & Arianna Marchioro & Elham Ghadiri & Jacques-E. Moser & Chenyi Yi & Md. K. Nazeeruddin & Michael Grätze, 2012. "A cobalt complex redox shuttle for dye-sensitized solar cells with high open-circuit potentials," Nature Communications, Nature, vol. 3(1), pages 1-8, January.
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