Please use this identifier to cite or link to this item:
Title: Reversible Modulation of Surface Plasmons in Gold Nanoparticles Enabled by Surface Redox Chemistry
Authors: Li, Zheng
Foley, Jonathan J., IV
Peng, Sheng
Sun, Cheng-Jun
Ren, Yang
Weidderecht, Gary P.
Gray, Stephen K.
Sun, Yugang
Keywords: Core-shell Nanoparticles;Gold Nanocrystals;Iron;Surface Plasmon Resonance;Surface Redox Chemistry;Chemistry
Issue Date: 11-Jun-2015
Publisher: Wiley
Gesellschaft Deutscher Chemiker (GDCh)
Citation: Li, Z., Foley, J. J., Peng, S., Sun, C.-J., Ren, Y., Wiederrecht, G. P., Gray, S. K., Sun, Y. (2015). Reversible Modulation of Surface Plasmons in Gold Nanoparticles Enabled by Surface Redox Chemistry. Angewandte Chemie, 127(31), 9076–9079.
Abstract: Switchable surface redox chemistry is demonstrated in gold@iron/iron oxide core–shell nanoparticles with ambient oxidation and plasmon-mediated reduction to modulate the oxidation state of shell layers. The iron shell can be oxidized to iron oxide through ambient oxidation, leading to an enhance- ment and red-shift of the gold surface plasmon resonance (SPR). This enhanced gold SPR can drive reduction of the iron oxide shell under broadband illumination to reversibly blue- shift and significantly dampen gold SPR absorption. The observed phenomena provide a unique mechanism for con- trolling the plasmonic properties and surface chemistry of small metal nanoparticles.
Description: This is the peer reviewed version of the following article: “Reversible modulation of surface plasmons in gold nanoparticles enabled by surface redox chemistry” Z. Li*, J. J. Foley IV*, S. Peng, C.-J. Sun, Y. Ren, G. P. Wiederrecht, S. K. Gray, Y. Sun, Angew. Chemie 127, 9076-9079 (2015), which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
ISSN: 1521-3773
Appears in Collections:Chemistry

Files in This Item:
File Description SizeFormat 
ReversibleModulationofSurfacePlasmons_AM.pdfAccepted Manuscript2.43 MBAdobe PDFThumbnail

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.