DI-UMONS : Dépôt institutionnel de l’université de Mons

Recherche transversale
(titres de publication, de périodique et noms de colloque inclus)
2019-03-05 - Colloque/Présentation - poster - Anglais - page(s)

Guyot Corentin , Voué Michel , "Controlling intrinsic optical properties by film thickness" in Mardi des Chercheurs 2019 (MdC2019), Mons, Belgique, 2019

  • Codes CREF : Matériaux optiques (DI1256)
  • Unités de recherche UMONS : Physique des matériaux et Optique (S878)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
  • Centres UMONS : Physique des matériaux (CRPM)
Texte intégral :

Abstract(s) :

(Anglais) Controlling intrinsic optical properties by film thickness Nano-objects and more particularly metal nanoparticles (NPs) play a central role in the development of nanotechnology-based optical devices. The collective oscillations of their conduction electrons are at the origin of energy absorption: this is the so-called "Localized Surface Plasmon Resonance" (LSPR). Gold NPs and silver NPs can be synthetized in a polymer matrix (PVA) to produce nanocomposites absorbing in the visible range. Surprisingly, coating of the solid substrate by the same AgNO3/PVA solution at increasing dilutions leads to a red-shift of the surface plasmon resonance peak, clearly suggesting changes in the structural parameters of the so-synthesized nanoparticles.