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J Am Chem Soc. 2010 Aug 4;132(30):10224-6. doi: 10.1021/ja103337d.

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

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1
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.

Abstract

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.

PMID:
20662496
DOI:
10.1021/ja103337d
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