Giant plasmon resonance shift using poly(3,4-ethylenedioxythiophene) electrochemical switching.

Verena Stockhausen (1) , Pascal Martin (1) , Jalal Ghilane (1, 2) , Yann Leroux (2) , Hyacinthe Randriamahazaka (1) , Johan Grand (1) , Nordin Felidj (1) , Jean-Christophe Lacroix (1)

1 ITODYS (UMR_7086) - Interfaces, Traitements, Organisation et Dynamique des Systèmes
2 ISCR - Institut des Sciences Chimiques de Rennes

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.

Domaines: Chimie organique

Verena Stockhausen, Pascal Martin, Jalal Ghilane, Yann Leroux, Hyacinthe Randriamahazaka, et al.. Giant plasmon resonance shift using poly(3,4-ethylenedioxythiophene) electrochemical switching.. Journal of the American Chemical Society, 2010, 132 (30), pp.10224-6. ⟨10.1021/ja103337d⟩. ⟨hal-00510404⟩