Giant plasmon resonance shift using poly(3,4-ethylenedioxythiophene) electrochemical switching.
Herein, we report the variation of localized surface plasmon resonance (LSPR) of gold nanoparticle (NP) arrays covered by poly(3,4-ethylenedioxythiophene) (PEDOT) as a function of the electronic state of the polymer. Giant shifts and fine-tuning of the LSPR of gold NPs surrounded by PEDOT/sodium docecyl sulfate have been achieved. The color variations of plasmonic/conducting polymer (CP) devices are given not only by changes of the optical properties of the CP upon doping but also by a close synergy of the optical properties of CP and NP. Such systems can considerably extend the field of CP-based electrochromic devices.
Stockhausen
Verena
V
Interfaces, Traitements, Organisation et Dynamique des Systèmes, Université Paris 7-Denis Diderot, UMR CNRS 7086, 15 rue Jean Antoine de Baif, 75205 Paris cedex 13, France.
Martin
Pascal
P
Ghilane
Jalal
J
Leroux
Yann
Y
Randriamahazaka
Hyacinthe
H
Grand
Johan
J
Felidj
Nordin
N
Lacroix
Jean Christophe
JC