title: Active Electrochemical Plasmonic Switching on Polyaniline-Coated Gold Nanocrystals.
abstract: High-performance electrochemical plasmonic switching is realized on both single-particle and ensemble levels by coating polyaniline on colloidal gold nanocrystals through surfactant-assisted oxidative polymerization. Under small applied potentials, the core@shell nanostructures exhibit reversible plasmon shifts as large as 150 nm, a switching time of less than 10 ms, and a high switching stability.
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
authors.forename: Wenzheng
authors.initials: W
authors.lastname: Lu
authors.affiliation: College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China.
authors.forename: Nina
authors.initials: N
authors.lastname: Jiang
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
authors.forename: Jianfang
authors.initials: J
authors.lastname: Wang
keywords: core@shell nanostructures; gold nanocrystals; plasmon; plasmon switching; polyaniline