nl5b01594_si_001.pdf (3.68 MB)
Solution-Dispersible Metal Nanorings with Deliberately Controllable Compositions and Architectural Parameters for Tunable Plasmonic Response
journal contribution
posted on 2015-08-12, 00:00 authored by Tuncay Ozel, Michael
J. Ashley, Gilles R. Bourret, Michael B. Ross, George C. Schatz, Chad A. MirkinWe 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.