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Active Electrochemical Plasmonic Switching on Polyaniline‐Coated Gold Nanocrystals
Author(s) -
Lu Wenzheng,
Jiang Nina,
Wang Jianfang
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201604862
Subject(s) - materials science , polyaniline , plasmon , nanocrystal , nanotechnology , electrochemistry , nanostructure , polymerization , colloid , coating , colloidal gold , chemical engineering , electrode , nanoparticle , optoelectronics , polymer , composite material , chemistry , engineering
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.
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