<i>In-Situ</i> Spectro-Electrochemistry of Conductive Polymers Using Plasmonics to Reveal Doping Mechanisms
Jialong Peng, Qianqi Lin, Tamás Földes, Hyeon‐Ho Jeong, Yuling Xiong, Charalampos Pitsalidis, George G. Malliaras, Edina Rosta, Jeremy J. Baumberg
Abstract
). Plasmonic nanoparticles encapsulated by thin shells of different conductive polymers provide actively tuned scattering color through switching their refractive index. Surface-enhanced Raman scattering in combination with cyclic voltammetry enables detailed studies of the redox/doping process. Our data intriguingly show that the doping mechanism varies with polymer conductivity: a disproportionation mechanism dominates in more conductive polymers, while sequential electron transfer prevails in less conductive polymers.
Topics & Concepts
Materials scienceElectrochemistryPlasmonIn situDopingNanotechnologyConductive polymerElectrical conductorPolymerOptoelectronicsElectrodeChemistryOrganic chemistryPhysical chemistryComposite materialConducting polymers and applicationsElectrochemical Analysis and ApplicationsAnalytical Chemistry and Sensors