Balancing Intermolecular and Molecule–Substrate Interactions in Supramolecular Assemblies

Authors

  • Dimas G. de Oteyza,

    Corresponding author
    1. Donostia International Physics Center Paseo Manuel Lardizabal 4 20018 San Sebastián (Spain)
    2. Max-Planck-Institut für Metallforschung Heisenbergstr. 3, 70569 Stuttgart (Germany)
    3. National Institute for Materials Science 1-1 Namiki, Tsukuba 305-0044 (Japan)
    • Donostia International Physics Center Paseo Manuel Lardizabal 4 20018 San Sebastián (Spain).
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  • Iñaki Silanes,

    1. Donostia International Physics Center Paseo Manuel Lardizabal 4 20018 San Sebastián (Spain)
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  • Miguel Ruiz-Osés,

    1. Donostia International Physics Center Paseo Manuel Lardizabal 4 20018 San Sebastián (Spain)
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  • Esther Barrena,

    1. Max-Planck-Institut für Metallforschung Heisenbergstr. 3, 70569 Stuttgart (Germany)
    2. ITAP, Universität Stuttgart 70569 Stuttgart (Germany)
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  • Bryan P. Doyle,

    1. Laboratorio Nazionale TASC Area Science Park, 34012 Basovizza (Italy)
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  • Andrés Arnau,

    1. Donostia International Physics Center Paseo Manuel Lardizabal 4 20018 San Sebastián (Spain)
    2. Universidad del Pais Vasco (UPV/EHU) 20018 San Sebastián (Spain)
    3. Centro Mixto CSIC-UPV/EHU Paseo Manuel Lardizabal 3 20018 San Sebastián (Spain)
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  • Helmut Dosch,

    1. Max-Planck-Institut für Metallforschung Heisenbergstr. 3, 70569 Stuttgart (Germany)
    2. ITAP, Universität Stuttgart 70569 Stuttgart (Germany)
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  • Yutaka Wakayama,

    1. National Institute for Materials Science 1-1 Namiki, Tsukuba 305-0044 (Japan)
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  • J. Enrique Ortega

    1. Donostia International Physics Center Paseo Manuel Lardizabal 4 20018 San Sebastián (Spain)
    2. Universidad del Pais Vasco (UPV/EHU) 20018 San Sebastián (Spain)
    3. Centro Mixto CSIC-UPV/EHU Paseo Manuel Lardizabal 3 20018 San Sebastián (Spain)
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Abstract

Self-assembly of functional supra-molecular nanostructures is among the most promising strategies for further development of organic electronics. However, a poor control of the interactions driving the assembling phenomena still hampers the tailored growth of designed structures. Here exploration of how non-covalent molecule-substrate interactions can be modified on a molecular level is described. For that, mixtures of DIP and F16CuPc, two molecules with donor and acceptor character, respectively are investigated. A detailed study of their structural and electronic properties is performed. In reference to the associated single-component layers, the growth of binary layers results in films with strongly enhanced intermolecular interactions and consequently reduced molecule-substrate interactions. This new insight into the interplay among the aforementioned interactions provides a novel strategy to balance the critical interactions in the assembly processes by the appropriate choice of molecular species in binary supra-molecular assemblies, and thereby control the self-assembly of functional organic nanostructures.

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