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Fluorine Induced Self-doping and Spatial Conformation in Alcohol-soluble Interlayer for Highly-efficient Polymer Solar Cells

Abstract

The molecular design strategy for high performance photoelectric material emphasizes the intrinsic charge transfer/transport as well as the role of the polymer chemical structure and chain conformation. Here, we reported a new interface engineering strategy for non-fullerene polymer solar cells (PSCs) by employing highly conductive polyelectrolyte interface layers with fluorinated conjugated backbone. Fluorine atom-induced strong n-type self-doping effect and optimized expanded conformation were observed to substantially improve their intrinsic charge mobility. An outstanding power conversion efficiency of 11.51% was obtained when applying the new polyelectrolyte interlayer in PSCs based on PBDB-T:ITIC active layer.

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Publication details

The article was received on 01 Oct 2017, accepted on 10 Nov 2017 and first published on 11 Nov 2017


Article type: Paper
DOI: 10.1039/C7TA08669E
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    Fluorine Induced Self-doping and Spatial Conformation in Alcohol-soluble Interlayer for Highly-efficient Polymer Solar Cells

    X. Jin, Y. Wang, X. Cheng, H. Zhou, L. Hu, Y. Zhou, L. Chen and Y. Chen, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA08669E

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