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11% efficiency solid-state dye-sensitized solar cells with copper(II/I) hole transport materials

Author

Listed:
  • Yiming Cao

    (Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Yasemin Saygili

    (Laboratory of Photomolecular Science, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Amita Ummadisingu

    (Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Joël Teuscher

    (Photochemical Dynamics Group, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Jingshan Luo

    (Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Norman Pellet

    (Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Fabrizio Giordano

    (Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Shaik Mohammed Zakeeruddin

    (Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Jacques -E. Moser

    (Photochemical Dynamics Group, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Marina Freitag

    (Laboratory of Photomolecular Science, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne
    Present address: Department of Chemistry, Ångström Laboratory, Uppsala University, 751 20 Uppsala, Sweden)

  • Anders Hagfeldt

    (Laboratory of Photomolecular Science, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

  • Michael Grätzel

    (Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne)

Abstract

Solid-state dye-sensitized solar cells currently suffer from issues such as inadequate nanopore filling, low conductivity and crystallization of hole-transport materials infiltrated in the mesoscopic TiO2 scaffolds, leading to low performances. Here we report a record 11% stable solid-state dye-sensitized solar cell under standard air mass 1.5 global using a hole-transport material composed of a blend of [Cu (4,4′,6,6′-tetramethyl-2,2′-bipyridine)2](bis(trifluoromethylsulfonyl)imide)2 and [Cu (4,4′,6,6′-tetramethyl-2,2′-bipyridine)2](bis(trifluoromethylsulfonyl)imide). The amorphous Cu(II/I) conductors that conduct holes by rapid hopping infiltrated in a 6.5 μm-thick mesoscopic TiO2 scaffold are crucial for achieving such high efficiency. Using time-resolved laser photolysis, we determine the time constants for electron injection from the photoexcited sensitizers Y123 into the TiO2 and regeneration of the Y123 by Cu(I) to be 25 ps and 3.2 μs, respectively. Our work will foster the development of low-cost solid-state photovoltaic based on transition metal complexes as hole conductors.

Suggested Citation

  • Yiming Cao & Yasemin Saygili & Amita Ummadisingu & Joël Teuscher & Jingshan Luo & Norman Pellet & Fabrizio Giordano & Shaik Mohammed Zakeeruddin & Jacques -E. Moser & Marina Freitag & Anders Hagfeldt , 2017. "11% efficiency solid-state dye-sensitized solar cells with copper(II/I) hole transport materials," Nature Communications, Nature, vol. 8(1), pages 1-8, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15390
    DOI: 10.1038/ncomms15390
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    Cited by:

    1. Maddah, Hisham A. & Berry, Vikas & Behura, Sanjay K., 2020. "Biomolecular photosensitizers for dye-sensitized solar cells: Recent developments and critical insights," Renewable and Sustainable Energy Reviews, Elsevier, vol. 121(C).
    2. Jun-ichi Fujisawa, 2020. "Interfacial Charge-Transfer Transitions for Direct Charge-Separation Photovoltaics," Energies, MDPI, vol. 13(10), pages 1-14, May.
    3. Adam Glinka & Jacek Kubicki & Marcin Ziółek, 2021. "Complexity of Electron Injection Dynamics and Light Soaking Effects in Efficient Dyes for Modern DSSC," Energies, MDPI, vol. 14(2), pages 1-15, January.
    4. Iacopo Benesperi & Reena Singh & Marina Freitag, 2020. "Copper Coordination Complexes for Energy-Relevant Applications," Energies, MDPI, vol. 13(9), pages 1-19, May.
    5. Ruwaida Asyikin Abu Talip & Wan Zaireen Nisa Yahya & Mohamad Azmi Bustam, 2020. "Ionic Liquids Roles and Perspectives in Electrolyte for Dye-Sensitized Solar Cells," Sustainability, MDPI, vol. 12(18), pages 1-23, September.

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