Impact of concentration and capping ligand length on the organization of metal nanoparticles in Langmuir-Blodgett surface micelles and nanostrands
Year: 2016
Journal: Colloid Surf. A-Physicochem. Eng. Asp.
Authors: Lemineur, JF; Saci, N; Ritcey, AM
Ultra-thin composite films have been prepared by the dispersion and organization of plasmonic nanoparticles in block copolymers. Polystyrene-b-polyvinylpyridine can be spread at the air-water interface to form periodic nano-domains with either a micellar or a lamellar morphology, providing an ordered template for the controlled assembly of metal nanoparticles. The exact spatial distribution of gold or silver nanoparticles of a fixed size (6nm) is effectively controlled by the length of chemisorbed alkanethiol ligands. With this approach three types of nanoparticle assemblies can be obtained: clusters, rings and lines. (C) 2016 Elsevier B.V. All rights reserved.
