Authors
Aurélien Sarrazin, Arthur Gontier, Alexandre Plaud, Jérémie Béal, Hélène Yockell-Lelièvre, Jean-Louis Bijeon, Jérôme Plain, Pierre-Michel Adam, Thomas Maurer,
Title
Single step synthesis and organization of gold colloids assisted by copolymer templates
In
Nanotechnology
Volume
25
Pages
225603
Publisher
IOP
Year
2014
Indexed by
Abstract
We report here an original single-step process for the synthesis and self-organization of gold colloids by simply incorporating gold salts into a solution prepared using polystyrene (PS)- polymethylmethacrylate copolymer and thiolated PS with propylene glycol methyl ether acetate as a solvent. The spin-coating and annealing of this solution then allows the formation of PS domains. Depending on the polymer concentration of the as-prepared solution, there can be either one or several gold nanoparticles (Au NPs) per PS domain. For high concentrations of Au NPs in PS domains, the coupling between plasmonic NPs leads to the observation of a second peak in the optical extinction spectrum. Such a collective effect could be relevant for the development of optical strain sensors in the near future.
Affiliations
Offprint