Self-assembly of Colloidal Superballs Under Uniform Compression

ORAL

Abstract

Understanding the relationship between colloidal building block shape and self-assembled material structure is important for the development of novel materials by self-assembly. In this regard, colloidal superballs are unique building blocks because their shape can smoothly transition between spherical and cubic. Assembly of colloidal superballs under uniform compression, attained from drying colloidal dispersion droplets on superhydrophobic plates, results in macroscopic opals with ordered internal structures. By utilizing Small Angle X-Ray Scattering (SAXS), we probe the internal structure of the droplets during compression. We identify and observe structure formation before a transition point that arises due to particle dewetting.

*We acknowledge the Netherlands Organisation for Scientific Research (NWO) for financial support through a Veni grant and for the provided beamtime at DUBBLE located at ESRF, Grenoble facilities

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Presenters

  • Sarah Schyck

    • Delft University of Technology

Authors

  • Sarah Schyck

    • Delft University of Technology

  • Janne-Meike Meijer

    • Applied Physics, Eindhoven University of Technology

  • Lucia Baldauf

    • Delft University of Technology

  • Andrei Petoukhov

    • Utrecht University

  • Peter Schall

    • University of Amsterdam
    • Institute of Physics, University of Amsterdam
    • Institure of Physics, University of Amsterdam

  • Laura Rossi

    • Delft University of Technology