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Poly(9,9-dioctylfluorene)-Based Conjugated Polyelectrolyte: Extended π-Electron Conjugation Induced by Complexation with a Surfactant Zwitterion

Authors

  • Giuseppina Pace,

    1. Cavendish Laboratory JJ Thomson Avenue, Cambridge, CB3 0HE (UK)
    2. Department of Chemistry and Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI) University of Florence 50019 Sesto Fiorentino, Firenze (Italy)
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  • Guoli Tu,

    1. Melville Laboratory for Polymer Synthesis Department of Chemistry University of Cambridge Cambridge CB2 1EW (UK)
    2. Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan, 430074 (China)
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  • Emiliano Fratini,

    1. Department of Chemistry and Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI) University of Florence 50019 Sesto Fiorentino, Firenze (Italy)
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  • Sylvain Massip,

    1. Cavendish Laboratory JJ Thomson Avenue, Cambridge, CB3 0HE (UK)
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  • Wilhelm T. S. Huck,

    1. Melville Laboratory for Polymer Synthesis Department of Chemistry University of Cambridge Cambridge CB2 1EW (UK)
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  • Piero Baglioni,

    1. Department of Chemistry and Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI) University of Florence 50019 Sesto Fiorentino, Firenze (Italy)
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  • Richard H. Friend

    Corresponding author
    1. Cavendish Laboratory JJ Thomson Avenue, Cambridge, CB3 0HE (UK)
    • Cavendish Laboratory JJ Thomson Avenue, Cambridge, CB3 0HE (UK).
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Abstract

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We report on a conjugated polyelectrolyte (CPE) based on fluorene repeat units, which forms a supramolecular complex with a zwitterion surfactant. The complex self-assembles into multilamellar structures on solid substrates. The luminescence efficiency, low in the uncomplexed polymer, is strongly increased after complexation. This originates from the phase segregation between the aromatic backbone and ionic sides, reducing conformational defects and ionic dipole-induced quenching.

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