Skip to Main content Skip to Navigation
Conference papers

Ligand-free synthesis of gold nanoparticles incorporated within oriented cylindrical block copolymer films : towards optical metamaterials

Abstract : We report a method to incorporate non-functionalized gold nanoparticles (AuNPs) in oriented cylindrical phases of poly(styrene)-b-poly(vinylpyridine) (PS-b-PVP) block copolymers, perpendicular to a substrate. The combination of AFM, TEM, GISAXS and spectroscopy allows complete characterization of the nanocomposites. AuNPs are produced by the ultra-sound reduction of a gold salt in the copolymer solution, prior to the deposition of the films by spin-coating. The AuNPs are found to be located within the PVP cylinders exclusively. The seeded-growth of these pre-formed AuNPs by a further ultra-sound treatment produced plasmonic AuNPs (up to d =10 nm). For perpendicular cylinders, the PVP domains are swollen without any change in their orientation. Ellipsometric optical properties of these plasmonic AuNPs embeded into oriented cylinders show a definite extinction in reflectivity at a precise energy and incidence angle.
Document type :
Conference papers
Complete list of metadatas

Cited literature [5 references]  Display  Hide  Download

https://hal-cea.archives-ouvertes.fr/cea-02328369
Contributor : Serge Palacin <>
Submitted on : Wednesday, October 23, 2019 - 10:58:42 AM
Last modification on : Monday, February 10, 2020 - 6:12:48 PM
Long-term archiving on: : Friday, January 24, 2020 - 3:11:36 PM

File

Guenoun_Meta2019.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : cea-02328369, version 1

Citation

Florian Aubrit, Fabienne Testard, Aurélie Paquirissamy, Frédéric Gobeaux, Xuan Wang, et al.. Ligand-free synthesis of gold nanoparticles incorporated within oriented cylindrical block copolymer films : towards optical metamaterials. META 2019. The 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics, Jul 2019, Lisbon, Portugal. ⟨cea-02328369⟩

Share

Metrics

Record views

60

Files downloads

34