Programming
Hierarchical Self-Assembly of Patchy Particles
into Colloidal Crystals via Colloidal Molecules
Version 2 2018-04-20, 23:43
Version 1 2018-02-16, 20:48
Posted on 2018-04-20 - 23:43
Colloidal self-assembly
is a promising bottom-up route to a wide
variety of three-dimensional structures, from clusters to crystals.
Programming hierarchical self-assembly of colloidal building blocks,
which can give rise to structures ordered at multiple levels to rival
biological complexity, poses a multiscale design problem. Here we
explore a generic design principle that exploits a hierarchy of interaction
strengths and employ this design principle in computer simulations
to demonstrate the hierarchical self-assembly of triblock patchy colloidal
particles into two distinct colloidal crystals. We obtain cubic diamond
and body-centered cubic crystals via distinct clusters
of uniform size and shape, namely, tetrahedra and octahedra, respectively.
Such a conceptual design framework has the potential to reliably encode
hierarchical self-assembly of colloidal particles into a high level
of sophistication. Moreover, the design framework underpins a bottom-up
route to cubic diamond colloidal crystals, which have remained elusive
despite being much sought after for their attractive photonic applications.
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Morphew, Daniel; Shaw, James; Avins, Christopher; Chakrabarti, Dwaipayan (2018). Programming
Hierarchical Self-Assembly of Patchy Particles
into Colloidal Crystals via Colloidal Molecules. ACS Publications. Collection. https://doi.org/10.1021/acsnano.7b07633
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AUTHORS (4)
DM
Daniel Morphew
JS
James Shaw
CA
Christopher Avins
DC
Dwaipayan Chakrabarti