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Superstructures generated from truncated tetrahedral quantum dots

Author

Listed:
  • Yasutaka Nagaoka

    (Brown University)

  • Rui Tan

    (Brown University)

  • Ruipeng Li

    (Cornell University
    National Synchrotron Light Source II, Brookhaven National Laboratory)

  • Hua Zhu

    (Brown University)

  • Dennis Eggert

    (Max Planck Institute for the Structure and Dynamics of Matter
    Leibniz Institute for Experimental Virology)

  • Yimin A. Wu

    (Argonne National Laboratory)

  • Yuzi Liu

    (Argonne National Laboratory)

  • Zhongwu Wang

    (Cornell University)

  • Ou Chen

    (Brown University)

Abstract

The assembly of uniform nanocrystal building blocks into well ordered superstructures is a fundamental strategy for the generation of meso- and macroscale metamaterials with emergent nanoscopic functionalities1–10. The packing of spherical nanocrystals, which frequently adopt dense, face-centred-cubic or hexagonal-close-packed arrangements at thermodynamic equilibrium, has been much more widely studied than that of non-spherical, polyhedral nanocrystals, despite the fact that the latter have intriguing anisotropic properties resulting from the shapes of the building blocks11–13. Here we report the packing of truncated tetrahedral quantum dot nanocrystals into three distinct superstructures—one-dimensional chiral tetrahelices, two-dimensional quasicrystal-approximant superlattices and three-dimensional cluster-based body-centred-cubic single supercrystals—by controlling the assembly conditions. Using techniques in real and reciprocal spaces, we successfully characterized the superstructures from their nanocrystal translational orderings down to the atomic-orientation alignments of individual quantum dots. Our packing models showed that formation of the nanocrystal superstructures is dominated by the selective facet-to-facet contact induced by the anisotropic patchiness of the tetrahedra. This study provides information about the packing of non-spherical nanocrystals into complex superstructures, and may enhance the potential of self-assembled nanocrystal metamaterials in practical applications.

Suggested Citation

  • Yasutaka Nagaoka & Rui Tan & Ruipeng Li & Hua Zhu & Dennis Eggert & Yimin A. Wu & Yuzi Liu & Zhongwu Wang & Ou Chen, 2018. "Superstructures generated from truncated tetrahedral quantum dots," Nature, Nature, vol. 561(7723), pages 378-382, September.
    • Handle: RePEc:nat:nature:v:561:y:2018:i:7723:d:10.1038_s41586-018-0512-5
    DOI: 10.1038/s41586-018-0512-5
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    Citations

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    Cited by:

    1. Bum Chul Park & Min Jun Ko & Young Kwang Kim & Gyu Won Kim & Myeong Soo Kim & Thomas Myeongseok Koo & Hong En Fu & Young Keun Kim, 2022. "Surface-ligand-induced crystallographic disorder–order transition in oriented attachment for the tuneable assembly of mesocrystals," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    2. Zhihua Cheng & Matthew R. Jones, 2022. "Assembly of planar chiral superlattices from achiral building blocks," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    3. Sangmin Lee & Sharon C. Glotzer, 2022. "Entropically engineered formation of fivefold and icosahedral twinned clusters of colloidal shapes," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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