Predicting Chiral Nanostructures, Lattices and Superlattices in Complex Multicomponent Nanoparticle Self-Assembly

Title
Predicting Chiral Nanostructures, Lattices and Superlattices in Complex Multicomponent Nanoparticle Self-Assembly
Authors
허가현Richard G. HennigFernando A. EscobedoUlrich Wiesner
Keywords
Self-consistent field theory; nanoparticle; block copolymer; self-assembly; hybrid materials
Issue Date
2012-03
Publisher
Nano letters
Citation
VOL 12, 3218-3223
Abstract
“Bottom up” type nanoparticle (NP) selfassembly is expected to provide facile routes to nanostructured materials for various, for example, energy related, applications. Despite progress in simulations and theories, structure prediction of self-assembled materials beyond simple model systems remains challenging. Here we utilize a field theory approach for predicting nanostructure of complex and multicomponent hybrid systems with multiple types of shortand long-range interactions. We propose design criteria for controlling a range of NP based nanomaterial structures. In good agreement with recent experiments, the theory predicts that ABC triblock terpolymer directed assemblies with ligandstabilized NPs can lead to chiral NP network structures. Furthermore, we predict that long-range Coulomb interactions between NPs leading to simple NP lattices, when applied to NP/block copolymer (BCP) assemblies, induce NP superlattice formation within the phase separated BCP nanostructure, a strategy not yet realized experimentally. We expect such superlattices to be of increasing interest to communities involved in research on, for example, energy generation and storage, metamaterials, as well as microelectronics and information storage.
URI
http://pubs.kist.re.kr/handle/201004/47902
ISSN
15306984
Appears in Collections:
KIST Publication > Article
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