Self-assembled plasmonic templates produced by microwave annealing: applications to surface-enhanced Raman scattering

Panagiotopoulos, N.T., Kalfagiannis, N. ORCID: 0000-0002-4030-5525, Vasilopoulos, K.C., Pliatsikas, N., Kassavetis, S., Vourlias, G., Karakassides, M.A. and Patsalas, P., 2015. Self-assembled plasmonic templates produced by microwave annealing: applications to surface-enhanced Raman scattering. Nanotechnology, 26 (20), p. 205603. ISSN 0957-4484

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Abstract

Perhaps the simplest method for creating metal nanoparticles on a substrate is by driving their self-assembly with the thermal annealing of a thin metal film. By properly tuning the annealing parameters one hopes to discover a recipe that allows the pre-determined design of the NP arrangement. However, thermal treatment is known for detrimental effects and is not really the manufacturer's route of choice when it comes to large-scale applications. An alternative method is the use of microwave annealing, a method that has never been applied for metal processing, due to the high reflectance of microwave radiation at the surface of a metal. However, in this work we challenge the widely used nanostructuring methods by proving the microwave's annealing ability to produce plasmonic templates, out of extremely thin metal films, by simply using a domestic microwave oven apparatus. We show that this process is generic and independent of the deposition method used for the metal and we further quantify the suitability of these plasmonic templates for use in surface-enhanced Raman scattering applications.

Item Type: Journal article
Publication Title: Nanotechnology
Creators: Panagiotopoulos, N.T., Kalfagiannis, N., Vasilopoulos, K.C., Pliatsikas, N., Kassavetis, S., Vourlias, G., Karakassides, M.A. and Patsalas, P.
Publisher: Institute of Physics
Date: 27 April 2015
Volume: 26
Number: 20
ISSN: 0957-4484
Identifiers:
NumberType
10.1088/0957-4484/26/20/205603DOI
Divisions: Schools > School of Science and Technology
Depositing User: Jonathan Gallacher
Date Added: 11 Apr 2017 10:30
Last Modified: 09 Jun 2017 14:14
URI: http://irep.ntu.ac.uk/id/eprint/30501

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