Document Type
Article
Original Publication Date
2016
Journal/Book/Conference Title
NANOTECHNOLOGY
Volume
27
Issue
38
DOI of Original Publication
10.1088/0957-4484/27/38/385301
Date of Submission
June 2017
Abstract
Regular silver (Ag) nanopatterns, from disconnected nanotriangles to well coupled triangular clusters of nanoparticles, were prepared by shadow nanosphere lithography at different incident angles θ from 0 degrees to 20 degrees with continuous azimuthal rotation. The resulting nanopatterns were consistent with predictions by numerical calculations and Monte Carlo simulations of adatoms with high diffusivity. The visible localized surface plasmon resonance of these nanopatterns was tuned by θ systematically due to the change in size, shape, and arrangement of Ag nanopatterns. These resonances were consistent with finite-difference time-domain simulations using realistic nanopatterns based upon scanning electron micrographs. Such a simple fabrication strategy can be used to optimize surface enhanced Raman scattering substrate fabrication, as well as other plasmonics based applications.
Rights
© 2016 IOP Publishing Ltd
Is Part Of
VCU Physics Publications
Comments
Originally published at http://doi.org/10.1088/0957-4484/27/38/385301