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

Comments

Originally published at http://doi.org/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

Included in

Physics Commons

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