Macromolecular Scaffolding: The Relationship Between Nanoscale Architecture and Function in Multichromophoric Arrays for Organic Electronics

Authors

  • Vincenzo Palermo,

    Corresponding author
    1. Instituto per la Sintesi Organica e la Fotoreattività Consiglio Nazionale delle Ricerche, Via Gobetti 101 40129 Bologna (Italy)
    • Instituto per la Sintesi Organica e la Fotoreattività Consiglio Nazionale delle Ricerche, Via Gobetti 101 40129 Bologna (Italy).
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  • Erik Schwartz,

    1. Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135, 6525 AJ Nijmegen (The Netherlands)
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  • Chris E. Finlayson,

    1. Cavendish Laboratory, University of Cambridge J. J. Thomson Avenue Cambridge CB3 0HE (UK)
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  • Andrea Liscio,

    1. Instituto per la Sintesi Organica e la Fotoreattività Consiglio Nazionale delle Ricerche, Via Gobetti 101 40129 Bologna (Italy)
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  • Matthijs B. J. Otten,

    1. Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135, 6525 AJ Nijmegen (The Netherlands)
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  • Sara Trapani,

    1. Université de Mons-Hainaut, Place du Parc 20 7000 Mons (Belgium)
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  • Klaus Müllen,

    Corresponding author
    1. Max-Planck Institute for Polymer Research Ackermann 10, 55124 Mainz (Germany)
    • Max-Planck Institute for Polymer Research Ackermann 10, 55124 Mainz (Germany).
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  • David Beljonne,

    Corresponding author
    1. Université de Mons-Hainaut, Place du Parc 20 7000 Mons (Belgium)
    • Université de Mons-Hainaut, Place du Parc 20 7000 Mons (Belgium).
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  • Richard H. Friend,

    Corresponding author
    1. Cavendish Laboratory, University of Cambridge J. J. Thomson Avenue Cambridge CB3 0HE (UK)
    • Cavendish Laboratory, University of Cambridge J. J. Thomson Avenue Cambridge CB3 0HE (UK).
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  • Roeland J. M. Nolte,

    1. Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135, 6525 AJ Nijmegen (The Netherlands)
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  • Alan E. Rowan,

    Corresponding author
    1. Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135, 6525 AJ Nijmegen (The Netherlands)
    • Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135, 6525 AJ Nijmegen (The Netherlands).
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  • Paolo Samorì

    Corresponding author
    1. Nanochemistry Laboratory, ISIS, Université de Strasbourg and CNRS (UMR 7006), 8 allée Gaspard Monge 67000 Strasbourg (France)
    • Nanochemistry Laboratory, ISIS, Université de Strasbourg and CNRS (UMR 7006), 8 allée Gaspard Monge 67000 Strasbourg (France).
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Abstract

The optimization of the electronic properties of molecular materials based on optically or electrically active organic building blocks requires a fine-tuning of their self-assembly properties at surfaces. Such a fine-tuning can be obtained on a scale up to 10 nm by mastering principles of supramolecular chemistry, i.e., by using suitably designed molecules interacting via pre-programmed noncovalent forces. The control and fine-tuning on a greater length scale is more difficult and challenging. This Research News highlights recent results we obtained on a new class of macromolecules that possess a very rigid backbone and side chains that point away from this backbone. Each side chain contains an organic semiconducting moiety, whose position and electronic interaction with neighboring moieties are dictated by the central macromolecular scaffold. A combined experimental and theoretical approach has made it possible to unravel the physical and chemical properties of this system across multiple length scales. The (opto)electronic properties of the new functional architectures have been explored by constructing prototypes of field-effect transistors and solar cells, thereby providing direct insight into the relationship between architecture and function.

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