Particle-in-a-frame nanostructures with interior nanogaps
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
Designing plasmonic hollow colloids with small interior nanogaps would allow structural properties to be exploited that are normally linked to an ensemble of particles but within a single nanoparticle. Now, a synthetic approach for constructing a new class of frame nanostructures is presented. Fine control over the galvanic replacement reaction of Ag nanoprisms with Au precursors gave unprecedented Au particle-in-a-frame nanostructures with well-defined sub-2 nm interior nanogaps. The prepared nanostructures exhibited superior performance in applications, such as plasmonic sensing and surface-enhanced Raman scattering, over their solid nanostructure and nanoframe counterparts. This highlights the benefit of their interior hot spots, which can highly promote and maximize the electric field confinement within a single nanostructure.
Date Issued
2019-09-18
Date Acceptance
2019-09-01
Citation
Angewandte Chemie International Edition, 2019, 58 (44), pp.15890-15894
ISSN
1433-7851
Publisher
Wiley
Start Page
15890
End Page
15894
Journal / Book Title
Angewandte Chemie International Edition
Volume
58
Issue
44
Copyright Statement
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000486834400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
gold
nanoframes
nanogaps
plasmon
SERS
ENHANCED RAMAN-SCATTERING
GOLD NANOFRAMES
PLASMONIC NANOPARTICLES
GALVANIC REPLACEMENT
NANOCRYSTALS
HOLLOW
FABRICATION
NANOCAGES
CLUSTERS
GROWTH
Publication Status
Published