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Highly Efficient Dye-Sensitized Solar Cells Based on Panchromatic Ruthenium Sensitizers with Quinolinylbipyridine Anchors

Authors

  • Chun-Cheng Chou,

    1. Department of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013 (Taiwan)
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    • These authors contributed equally.

  • Fa-Chun Hu,

    1. Department of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013 (Taiwan)
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    • These authors contributed equally.

  • Hsiu-Hsuan Yeh,

    1. Department of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013 (Taiwan)
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  • Hsin-Pei Wu,

    1. Department of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013 (Taiwan)
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  • Yun Chi,

    Corresponding author
    1. Department of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013 (Taiwan)
    • Yun Chi, Department of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013 (Taiwan)

      John N. Clifford, Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans 16, 43007 Tarragona (Spain)

      Pi-Tai Chou, Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 10617 (Taiwan)

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  • John N. Clifford,

    Corresponding author
    1. Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans 16, 43007 Tarragona (Spain)
    • Yun Chi, Department of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013 (Taiwan)

      John N. Clifford, Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans 16, 43007 Tarragona (Spain)

      Pi-Tai Chou, Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 10617 (Taiwan)

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  • Emilio Palomares,

    1. Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans 16, 43007 Tarragona (Spain)
    2. ICREA, Avda. Lluís Companys 28, Barcelona E-08030 (Spain)
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  • Shih-Hung Liu,

    1. Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 10617 (Taiwan)
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  • Pi-Tai Chou,

    Corresponding author
    1. Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 10617 (Taiwan)
    • Yun Chi, Department of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013 (Taiwan)

      John N. Clifford, Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans 16, 43007 Tarragona (Spain)

      Pi-Tai Chou, Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 10617 (Taiwan)

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  • Gene-Hsiang Lee

    1. Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 10617 (Taiwan)
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Abstract

Panchromatic RuII sensitizers TF-30–TF-33 bearing a new class of 6-quinolin-8-yl-2,2′-bipyridine anchor were synthesized and tested under AM1.5 G simulated solar irradiation. Their increased π conjugation relative to that of the traditional 2,2′:6′,2′′-terpyridine-based anchor led to a remarkable improvement in absorptivity across the whole UV–Vis–NIR spectral regime. Furthermore, the introduction of a bulky tert-butyl substituent on the quinolinyl fragment not only led to an increase in the JSC value owing to the suppression of dye aggregation, but remarkably also resulted in no loss in VOC in comparison with the reference sensitizer containing a tricarboxyterpyridine anchor. The champion sensitizer in DSC devices was found to be TF-32 with a performance of JSC=19.2 mA cm−2, VOC=740 mV, FF=0.72, and η=10.19 %. This 6-quinolin-8-yl-2,2′-bipyridine anchor thus serves as a prototype for the next generation of RuII sensitizers with any tridentate ancillary.

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