Stable Dye-Sensitized Solar Cell Electrolytes Based on Cobalt(II)/(III) Complexes of a Hexadentate Pyridyl Ligand

Authors

  • Muhammad K. Kashif,

    1. Department of Materials Engineering, Monash University, Clayton, Victoria 3800 (Australia)
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  • Dr. Michael Nippe,

    1. Department of Chemistry, University of California, Berkeley, CA 94720-1460 (USA)
    2. Materials or Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-1460 (USA)
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  • Noel. W. Duffy,

    1. CSIRO, Energy Technology, Clayton South, Victoria 3169 (Australia)
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  • Dr. Craig M. Forsyth,

    1. Department of Chemistry, Monash University, Clayton, Victoria 3800 (Australia)
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  • Prof. Dr. Christopher J. Chang,

    Corresponding author
    1. Departments of Chemistry and Molecular and Cell Biology and the Howard Hughes Medical Institute, University of California, Berkeley, CA 94720-1460 (USA)
    2. Materials or Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-1460 (USA)
    • Christopher J. Chang, Departments of Chemistry and Molecular and Cell Biology and the Howard Hughes Medical Institute, University of California, Berkeley, CA 94720-1460 (USA)

      Jeffrey R. Long, Department of Chemistry, University of California, Berkeley, CA 94720-1460 (USA)

      Leone Spiccia, Department of Chemistry, Monash University, Clayton, Victoria 3800 (Australia)

      Udo Bach, Department of Materials Engineering, Monash University, Clayton, Victoria 3800 (Australia)

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  • Prof. Dr. Jeffrey R. Long,

    Corresponding author
    1. Department of Chemistry, University of California, Berkeley, CA 94720-1460 (USA)
    2. Materials or Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-1460 (USA)
    • Christopher J. Chang, Departments of Chemistry and Molecular and Cell Biology and the Howard Hughes Medical Institute, University of California, Berkeley, CA 94720-1460 (USA)

      Jeffrey R. Long, Department of Chemistry, University of California, Berkeley, CA 94720-1460 (USA)

      Leone Spiccia, Department of Chemistry, Monash University, Clayton, Victoria 3800 (Australia)

      Udo Bach, Department of Materials Engineering, Monash University, Clayton, Victoria 3800 (Australia)

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  • Prof. Dr. Leone Spiccia,

    Corresponding author
    1. Department of Chemistry, Monash University, Clayton, Victoria 3800 (Australia)
    • Christopher J. Chang, Departments of Chemistry and Molecular and Cell Biology and the Howard Hughes Medical Institute, University of California, Berkeley, CA 94720-1460 (USA)

      Jeffrey R. Long, Department of Chemistry, University of California, Berkeley, CA 94720-1460 (USA)

      Leone Spiccia, Department of Chemistry, Monash University, Clayton, Victoria 3800 (Australia)

      Udo Bach, Department of Materials Engineering, Monash University, Clayton, Victoria 3800 (Australia)

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  • Prof. Dr. Udo Bach

    Corresponding author
    1. Department of Materials Engineering, Monash University, Clayton, Victoria 3800 (Australia)
    2. Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, Victoria 3168 (Australia)
    3. CSIRO, Materials Science and Engineering, Clayton South, Victoria 3169 (Australia)
    • Christopher J. Chang, Departments of Chemistry and Molecular and Cell Biology and the Howard Hughes Medical Institute, University of California, Berkeley, CA 94720-1460 (USA)

      Jeffrey R. Long, Department of Chemistry, University of California, Berkeley, CA 94720-1460 (USA)

      Leone Spiccia, Department of Chemistry, Monash University, Clayton, Victoria 3800 (Australia)

      Udo Bach, Department of Materials Engineering, Monash University, Clayton, Victoria 3800 (Australia)

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  • The authors acknowledge the Australian Research Council for providing equipment and fellowship support and the Australian Solar Institute, the Victorian State Government (DBI-VSA and DPI-ETIS) for financial support. The CSIRO is acknowledged for providing support through an OCE Science Leader position (UB). Part of the synthetic work was carried out at the Joint Center for Artificial Photosynthesis supported by the Office of Science of the U.S. Department of Energy under award number DE-SC0004993.

Abstract

original image

Energy conversion: A cobalt redox mediator, [Co(bpyPY4)]2+/3+, based on a hexadentate polypyridyl ligand, was developed. Dye-sensitized solar cells (DSCs) made with this redox mediator showed improved stability and slightly higher efficiencies compared to [Co(bpy)3]2+/3+-based devices. Long-term stability evaluation of DSCs based on [Co(bpyPY4)]2+/3+ revealed excellent stability under full irradiation conditions (see picture).

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