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Issue 44, 2013
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Diketopyrrolopyrrole-based sensitizers for dye-sensitized solar cell applications: anchor engineering

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Abstract

A series of donor–chromophore–anchor (D–C–A) sensitizers comprising the diketopyrrolopyrrole (DPP) chromophore were synthesized and tested in both I3/I and Co[(bpy)]3+/2+ redox shuttle DSC devices. The dye series was strategically designed to elucidate structure–property relationships, concerning overall performance and compatibility with these two electrolytes. Selective fluorine incorporation improved I3/I-based DSC performance, while hindering performance with the positively charged cobalt-based redox shuttle. Incorporation of a pyridine heterocycle into the DPP chromophore increased spectral breadth, but decreased performance metrics for both electrolyte systems. These results are understood through detailed electrochemical, photophysical, and computational studies.

Graphical abstract: Diketopyrrolopyrrole-based sensitizers for dye-sensitized solar cell applications: anchor engineering

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Publication details

The article was received on 11 Sep 2013, accepted on 19 Sep 2013 and first published on 20 Sep 2013


Article type: Paper
DOI: 10.1039/C3TA13643D
Citation: J. Mater. Chem. A, 2013,1, 13978-13983

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    Diketopyrrolopyrrole-based sensitizers for dye-sensitized solar cell applications: anchor engineering

    T. W. Holcombe, J. Yum, Y. Kim, K. Rakstys and M. Grätzel, J. Mater. Chem. A, 2013, 1, 13978
    DOI: 10.1039/C3TA13643D

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