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Improving photovoltaic performance by installing alkyl chains perpendicular to π-conjugated plane of organic dye for dye-sensitized solar cells

Abstract

We demonstrate that employing long alkyl chains perpendicular to π-conjugated backbone’s plane is a promising strategy to construct efficient organic sensitizers for dye-sensitized solar cells (DSSCs) with 10 efficient photovoltaic performance. The perpendicular alkyl chains have been suggested as superior alternatives to those parallel alkyl chains for preventing intermolecular interactions in D-π-A dyes, therefore co-adsorption with deoxycholic acid (DCA) can be avoided. DSSCs employing iodine/iodide electrolytes and an organic dye LJ-8 with long alkyl chains perpendicular to its π-conjugated plane produced high photovoltage of 0.801 V and high conversion efficiency over 8%.

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Publication details

The article was received on 20 Mar 2019, accepted on 10 May 2019 and first published on 10 May 2019


Article type: Paper
DOI: 10.1039/C9TC01520E
J. Mater. Chem. C, 2019, Accepted Manuscript

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    Improving photovoltaic performance by installing alkyl chains perpendicular to π-conjugated plane of organic dye for dye-sensitized solar cells

    H. Chen, G. Lyu, Y. Yue, T. Wang, D. Li, H. Shi, J. Xing, J. Shao, R. Zhang and J. Liu, J. Mater. Chem. C, 2019, Accepted Manuscript , DOI: 10.1039/C9TC01520E

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