High-Performance Liquid and Solid Dye-Sensitized Solar Cells Based on a Novel Metal-Free Organic Sensitizer

Authors

  • Mingkui Wang,

    1. Laboratory for Photonics and Interfaces Swiss Federal Institute of Technology 1015 Lausanne (Switzerland)
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  • Mingfei Xu,

    1. State Key Laboratory of Polymers and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences (CAS) Changchun, 130022 (China)
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  • Dong Shi,

    1. State Key Laboratory of Polymers and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences (CAS) Changchun, 130022 (China)
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  • Renzhi Li,

    1. State Key Laboratory of Polymers and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences (CAS) Changchun, 130022 (China)
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  • Feifei Gao,

    1. State Key Laboratory of Polymers and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences (CAS) Changchun, 130022 (China)
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  • Guangliang Zhang,

    1. State Key Laboratory of Polymers and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences (CAS) Changchun, 130022 (China)
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  • Zhihui Yi,

    1. State Key Laboratory of Polymers and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences (CAS) Changchun, 130022 (China)
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  • Robin Humphry-Baker,

    1. Laboratory for Photonics and Interfaces Swiss Federal Institute of Technology 1015 Lausanne (Switzerland)
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  • Peng Wang,

    Corresponding author
    1. State Key Laboratory of Polymers and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences (CAS) Changchun, 130022 (China)
    • State Key Laboratory of Polymers and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences (CAS) Changchun, 130022 (China).
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  • Shaik M. Zakeeruddin,

    Corresponding author
    1. Laboratory for Photonics and Interfaces Swiss Federal Institute of Technology 1015 Lausanne (Switzerland)
    • Laboratory for Photonics and Interfaces Swiss Federal Institute of Technology 1015 Lausanne (Switzerland).
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  • Michael Grätzel

    Corresponding author
    1. Laboratory for Photonics and Interfaces Swiss Federal Institute of Technology 1015 Lausanne (Switzerland)
    • Laboratory for Photonics and Interfaces Swiss Federal Institute of Technology 1015 Lausanne (Switzerland).
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  • The National Key Scientific Program-Nanoscience and Nanotechnology (no. 2007CB936700), the National Science Foundation of China (no. 50773078), the Foundation for Outstanding Young Scientists of Jilin Province (no. 20070101), and the “100-Talent Program” of CAS are acknowledged for financial support. M. W., R. H.-B., S. M. Z., and M. G. thank the Swiss National Science Foundation for financial support. P. W. thanks EPFL for giving a visiting professorship. Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

original image

A new metal-free organic sensitizer (see figure) for high-performance and applicable dye-sensitized solar cells is presented. In combination with a solvent-free ionic liquid electrolyte, a ∼ 7% cell made with this sensitizer shows an excellent stability measured under thermal and light-soaking dual stress. For the first time a 4.8% efficiency is reached for all-solid-state dye-sensitized solar cells based on an organic dye.

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