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Significantly Improved Performance of Dye-Sensitized Solar Cell by Optimizing Organic Dyes with Pyrrole as the Isolation Space and Utilizing Alkyl Chain Engineering

Abstract

The optimization of interfacial and intramolecular charge transfer of organic dyes is crucial to the photovoltaic performance of dye-sensitized solar cells. In this text, the efficient strategy was afforded by the introduction of alkylated pyrrole as isolation space into the organic dyes. The interfacial charge transfer can be organized by the tunable alkyl chains as the barrier layer to inhibit the electron recombination, and the pull-push system can be strengthened by the incorporation of electron-withdrawing unit (benzothiadiazole) and electron-rich moieties (pyrrole) into the conjugated bridge simultaneously, resulting in the excellent light-harvesting capability. Therefore, the high conversion efficiency of 9.70% was achieved by LI-124 with suitable alkyl chains and device optimization.

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Publication details

The article was received on 29 Jun 2018, accepted on 11 Sep 2018 and first published on 11 Sep 2018


Article type: Paper
DOI: 10.1039/C8TA06258G
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Significantly Improved Performance of Dye-Sensitized Solar Cell by Optimizing Organic Dyes with Pyrrole as the Isolation Space and Utilizing Alkyl Chain Engineering

    J. wang, S. Liu, Z. Chai, K. Chang, M. Fang, M. Han, Y. wang, S. li, H. Han, Q. Li and Z. li, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA06258G

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