Formation of Large 2D Arrays of Shape-Controlled Colloidal Nanoparticles at Variable Interparticle Distances

Authors

  • Simon Ullrich,

    1. Max-Planck Institute for Intelligent Systems, Department of New Materials and Biosystems & University of Heidelberg, Department of Biophysical Chemistry, Heisenbergstr. 3, 70569 Stuttgart, Germany
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  • Sebastian P. Scheeler,

    1. Max-Planck Institute for Intelligent Systems, Department of New Materials and Biosystems & University of Heidelberg, Department of Biophysical Chemistry, Heisenbergstr. 3, 70569 Stuttgart, Germany
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  • Claudia Pacholski,

    1. Max-Planck Institute for Intelligent Systems, Department of New Materials and Biosystems & University of Heidelberg, Department of Biophysical Chemistry, Heisenbergstr. 3, 70569 Stuttgart, Germany
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  • Joachim P. Spatz,

    1. Max-Planck Institute for Intelligent Systems, Department of New Materials and Biosystems & University of Heidelberg, Department of Biophysical Chemistry, Heisenbergstr. 3, 70569 Stuttgart, Germany
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  • Stefan Kudera

    Corresponding author
    1. Max-Planck Institute for Intelligent Systems, Department of New Materials and Biosystems & University of Heidelberg, Department of Biophysical Chemistry, Heisenbergstr. 3, 70569 Stuttgart, Germany
    • Max-Planck Institute for Intelligent Systems, Department of New Materials and Biosystems & University of Heidelberg, Department of Biophysical Chemistry, Heisenbergstr. 3, 70569 Stuttgart, Germany.
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Abstract

A method for the production of homogeneous layers of nanoparticles of arbitrary shape is presented. The method relies on a ligand exchange with a functionalized polymer and a subsequent self-assembly of a thin film on the substrates. The interparticle distances in the layer can be adjusted by the length of the polymer. In the case of spherical particles, the approach yields quasi-hexagonal structures; in the case of anisotropic particles, the minimum distance between adjacent particles is controlled. Regular arrangements of the nanoparticles covering areas of several square centimeters are achieved.

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