Structural diversity in three-dimensional self-assembly of nanoplatelets by spherical confinement

Da Wang (), Michiel Hermes, Stan Najmr, Nikos Tasios, Albert Grau-Carbonell, Yang Liu, Sara Bals, Marjolein Dijkstra, Christopher B. Murray and Alfons Blaaderen ()
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Da Wang: Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University
Michiel Hermes: Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University
Stan Najmr: University of Pennsylvania
Nikos Tasios: Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University
Albert Grau-Carbonell: Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University
Yang Liu: Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University
Sara Bals: Electron Microscopy for Materials Science (EMAT), University of Antwerp
Marjolein Dijkstra: Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University
Christopher B. Murray: University of Pennsylvania
Alfons Blaaderen: Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University

Nature Communications, 2022, vol. 13, issue 1, 1-12

Abstract: Abstract Nanoplatelets offer many possibilities to construct advanced materials due to new properties associated with their (semi)two-dimensional shapes. However, precise control of both positional and orientational order of the nanoplatelets in three dimensions, which is required to achieve emerging and collective properties, is challenging to realize. Here, we combine experiments, advanced electron tomography and computer simulations to explore the structure of supraparticles self-assembled from nanoplatelets in slowly drying emulsion droplets. We demonstrate that the rich phase behaviour of nanoplatelets, and its sensitivity to subtle changes in shape and interaction potential can be used to guide the self-assembly into a wide range of different structures, offering precise control over both orientation and position order of the nanoplatelets. Our research is expected to shed light on the design of hierarchically structured metamaterials with distinct shape- and orientation- dependent properties.

Date: 2022
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DOI: 10.1038/s41467-022-33616-y

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