Optical interpretation for plasmonic adjustment of nanostructured Ag-NiO thin films

Author:

Stamatelatos A.1,Tsarmpopoulou M.1,Chronis A. G.1,Kanistras N.1,Anyfantis D. I.1,Violatzi E.1,Geralis D.1,Sigalas M. M.1,Poulopoulos P.1ORCID,Grammatikopoulos S.2

Affiliation:

1. Department of Materials Science, University of Patras, Patras 26504, Greece

2. Department of Mechanical Engineering, School of Engineering, University of the Peloponnese, Megalou Alexandrou 1, Patras 26334, Greece

Abstract

Ultrathin Ag and Ni/NiO films are sequentially produced on Corning glass and silicon substrates by means of magnetron sputtering. Post annealing treatment in a furnace with air at [Formula: see text]C and [Formula: see text]C may lead to the formation of Ag nanostructures in NiO environment. Some of these samples present local surface plasmon resonances (SPRs). The sequence in which each layer is deposited, as well as, the state of the structure on which the layer is deposited, appears to play a pivotal role in the optical properties of these nanostructures, which are attributed to the growth properties of the nanocomposite thin films. Ultimately, rigorous theoretical calculations have been made for comparison and discussion with the experimental results.

Funder

Operational Program Competitiveness, Entrepreneurship and Innovation, under the call RESEARCH — CREATE — INNOVATE

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

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