Hierarchically self-assembled hexagonal honeycomb and kagome superlattices of binary 1D colloids

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Synthesis of binary nanoparticle superlattices has attracted attention for a broad spectrum of potential applications. However, this has remained challenging for one-dimensional nanoparticle systems. In this study, we investigate the packing behavior of one-dimensional nanoparticles of different diameters into a hexagonally packed cylindrical micellar system and demonstrate that binary one-dimensional nanoparticle superlattices of two different symmetries can be obtained by tuning particle diameter and mixing ratios. The hexagonal arrays of one-dimensional nanoparticles are embedded in the honeycomb lattices (for AB(2) type) or kagome lattices (for AB(3) type) of micellar cylinders. The maximization of free volume entropy is considered as the main driving force for the formation of superlattices, which is well supported by our theoretical free energy calculations. Our approach provides a route for fabricating binary one-dimensional nanoparticle superlattices and may be applicable for inorganic one-dimensional nanoparticle systems.
Publisher
NATURE PUBLISHING GROUP
Issue Date
2017-08
Language
English
Article Type
Article
Keywords

ENTROPY-DRIVEN FORMATION; HARD-DISC MIXTURES; NANOPARTICLE SUPERLATTICES; PHASE-BEHAVIOR; NANOCRYSTAL SUPERLATTICES; SOLID-SOLUTIONS; CELL THEORY; RODS; THIN; MICELLES

Citation

NATURE COMMUNICATIONS, v.8

ISSN
2041-1723
DOI
10.1038/s41467-017-00512-9
URI
http://hdl.handle.net/10203/226009
Appears in Collection
NE-Journal Papers(저널논문)
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