Solution-Dispersible Metal Nanorings with Deliberately Controllable Compositions and Architectural Parameters for Tunable Plasmonic Response

We report a template-based technique for the preparation of solution-dispersible nanorings composed of Au, Ag, Pt, Ni, and Pd with control over outer diameter (60–400 nm), inner diameter (25–230 nm), and height (40 nm to a few microns). Systematic and independent control of these parameters enables...

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Bibliographic Details
Published in:Nano letters 2015-08, Vol.15 (8), p.5273-5278
Main Authors: Ozel, Tuncay, Ashley, Michael J, Bourret, Gilles R, Ross, Michael B, Schatz, George C, Mirkin, Chad A
Format: Article
Language:English
Subjects:
Curvature
Lithography
Mathematical analysis
Nanostructure
Nickel
Plasmonics
Plasmons
Spectra
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Summary:We report a template-based technique for the preparation of solution-dispersible nanorings composed of Au, Ag, Pt, Ni, and Pd with control over outer diameter (60–400 nm), inner diameter (25–230 nm), and height (40 nm to a few microns). Systematic and independent control of these parameters enables fine-tuning of the three characteristic localized surface plasmon resonance modes of Au nanorings and the resulting solution-based extinction spectra from the visible to the near-infrared. This synthetic approach provides a new pathway for solution-based investigations of surfaces with negative curvature.
ISSN:1530-6984
1530-6992
DOI:10.1021/acs.nanolett.5b01594