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Interplay between spherical confinement and particle shape on the self-assembly of rounded cubes

Author

Listed:
  • Da Wang

    (Utrecht University)

  • Michiel Hermes

    (Utrecht University)

  • Ramakrishna Kotni

    (Utrecht University)

  • Yaoting Wu

    (University of Pennsylvania)

  • Nikos Tasios

    (Utrecht University)

  • Yang Liu

    (Utrecht University
    Utrecht University)

  • Bart de Nijs

    (Utrecht University)

  • Ernest B. van der Wee

    (Utrecht University)

  • Christopher B. Murray

    (University of Pennsylvania
    University of Pennsylvania)

  • Marjolein Dijkstra

    (Utrecht University)

  • Alfons van Blaaderen

    (Utrecht University)

Abstract

Self-assembly of nanoparticles (NPs) inside drying emulsion droplets provides a general strategy for hierarchical structuring of matter at different length scales. The local orientation of neighboring crystalline NPs can be crucial to optimize for instance the optical and electronic properties of the self-assembled superstructures. By integrating experiments and computer simulations, we demonstrate that the orientational correlations of cubic NPs inside drying emulsion droplets are significantly determined by their flat faces. We analyze the rich interplay of positional and orientational order as the particle shape changes from a sharp cube to a rounded cube. Sharp cubes strongly align to form simple-cubic superstructures whereas rounded cubes assemble into icosahedral clusters with additionally strong local orientational correlations. This demonstrates that the interplay between packing, confinement and shape can be utilized to develop new materials with novel properties.

Suggested Citation

  • Da Wang & Michiel Hermes & Ramakrishna Kotni & Yaoting Wu & Nikos Tasios & Yang Liu & Bart de Nijs & Ernest B. van der Wee & Christopher B. Murray & Marjolein Dijkstra & Alfons van Blaaderen, 2018. "Interplay between spherical confinement and particle shape on the self-assembly of rounded cubes," Nature Communications, Nature, vol. 9(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04644-4
    DOI: 10.1038/s41467-018-04644-4
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    Cited by:

    1. Da Wang & Michiel Hermes & Stan Najmr & Nikos Tasios & Albert Grau-Carbonell & Yang Liu & Sara Bals & Marjolein Dijkstra & Christopher B. Murray & Alfons Blaaderen, 2022. "Structural diversity in three-dimensional self-assembly of nanoplatelets by spherical confinement," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

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