Copolymer template etching for Au nanoparticles self-assembly. (2016)

• Record Type: Journal Article
• Authors: Tan, Priscilla; Plaud, Alexandre; Royer, Pascal; Maurer, Thomas
• Is Part Of: International journal of nanotechnology. Volume 13:Number 10/11/12(2016)
• Page Start: 716
• Page End: 723
• Publication Date: 2016
• Subjects: metallic nanoparticles -- self-assembly -- copolymer template etching -- localised SPR -- surface plasmon resonance -- optical nanosensors -- nanotechnology -- Au nanoparticles -- gold nanoparticles -- Au colloids -- gold colloids -- polystyrene-polymethyl methacrylate -- PMMA -- block copolymer templates -- thin films -- aminosilanes -- plasmonic device design; 620.505
• Languages: English
• ISSNs: 1475-7435

Abstract

In this paper, we report a study on self-assembly of Au colloids assisted by polystyrene (PS)-polymethyl methacrylate (PMMA) block copolymer templates. Etching PMMA cylindrical domains of PS-PMMA thin films provides large-scale arrays of holes in which 12nm Au colloids may fall into. We demonstrate that the holes' functionalisation with aminosilanes favours the deposition of the Au colloids into the holes. The extinction spectroscopy measurements demonstrate that the Au NPs which are self-assembled using this process do not present any aggregation. Such a process should pave the way for designing plasmonic devices like optical nanosensors.