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Ordered Assembling of Size and Shape Selected Nanocrystals

Published online by Cambridge University Press:  02 July 2020

Z.L. Wang
Z.L. Wang*
Affiliation:
School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA30332
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Nanoparticles and the physical and chemical functional specificity and selectivity they possess, suggest them as ideal building blocks for two- and three-dimensional cluster self-assembled superlattice structures, in which the particles behave as well-defined molecular matter and they are arranged with long-range translation and even orientation order [1]. Self-assembled arrays involve self-organization into monolayers, thin films, and superlattices of size-selected nanoclusters encapsulated in protective compact organic coating. The macroscopic properties of the nanocrystal superlattice (NCS) are determined not only by the properties of each individual particle but by the coupling/interaction between nanocrystals interconnected and isolated by a monolayer of thin organic molecules.

Periodic packing of nanocrystals is different from the 3-D packing of atoms. First, to an excellent approximation atoms are spherical, while nanoparticles can be faceted polyhedra, thus, the 3-D packing of particles can be critically affected by their shapes and sizes.

Type
Nanophase and Amorphous Materials
Information
Microscopy and Microanalysis , Volume 4 , Issue S2: Proceedings: Microscopy & Microanalysis '98, Microscopy Society of America 56th Annual Meeting, Microbeam Analysis Society 32nd Annual Meeting, Atlanta, Georgia July 12-16, 1998 , July 1998 , pp. 728 - 729
Copyright
Copyright © Microscopy Society of America

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References

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9. Thanks to the collaborators who contribut to this work: J.S. Yin, S.A. Harfenist, M.M.Alvarez, I. Vezmar, R.L.Whetten, J. Bentley and N.D. Evans.