Publication:
Chemically isolating hot spots on concave nanocubes

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Authors
Rycenga, Matthew
Langille, Mark R.
Personick, Michelle L.
Ozel, Tuncay
Mirkin, Chad A.
Subjects
Anisotropic nanoparticle
Hot spot
Surface-enhanced Raman scattering
concave nanocube
Advisors
Date of Issue
2012
Date
Publisher
American Chemical Society
Language
Abstract
We report a simple and general strategy for selectively exposing and functionalizing the sharp corners of concave nanocubes, which are the SERS hot spots for such structures. This strategy takes advantage of the unique shape of the concave cubes by coating the particles with silica and then etching it away to expose only the corner regions, while maintaining the silica coating in the concave faces. These corner regions can then be selectively modified for improved enhancement and signal response with SERS
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.1021/nl3032235
Department
Chemistry and International Institute of Nanotechnology
Organization
Northwestern University
Identifiers
NPS Report Number
Sponsors
AFOSR
National Science Foundation
NERC (DOE)
Funded by Naval Postgraduate School.
Funder
Awards No. N00244-09-1-0012 and N00244-09-1-0071 (NPS)
Award no. FA9550-09-1-0294 (AFOSR)
DMR-0520513 and DMR-01121262 (NSF)
Award no. DE-SC0000989 (NERC)
Format
Citation
M. Rycenga, M.R. Lagillel, M.L. Personick, T. Ozel, C.A. Mirkin, "Chemically isolating hot spots on concave nanocubes," Nano Letters, v.12, (2012), pp. 6218-6222.
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