Predicting Chiral Nanostructures, Lattices and Superlattices in Complex Multicomponent Nanoparticle Self-Assembly
- Predicting Chiral Nanostructures, Lattices and Superlattices in Complex Multicomponent Nanoparticle Self-Assembly
- 허가현; Richard G. Hennig; Fernando A. Escobedo; Ulrich Wiesner
- Self-consistent field theory; nanoparticle; block copolymer; self-assembly; hybrid materials
- Issue Date
- Nano letters
- VOL 12, 3218-3223
- “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.
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