On the Localized Surface Plasmonic Resonances of AgPd Alloy Nanoparticles by Experiment and Theory

On the Localized Surface Plasmonic Resonances of AgPd Alloy Nanoparticles by Experiment and Theory

Ag/Pd multilayers and AgPd alloyed ultrathin films were deposited on Corning glass by magnetron sputtering. After being annealed in a furnace in air at 460 °C, self-assembled nanoparticles were formed. Localized surface plasmon resonances were observed only for the Ag-rich samples in the full range...

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Bibliographic Details
Main Authors: Dimitrios Ntemogiannis, Maria Tsarmpopoulou, Alexandros G. Chronis, Dimitrios I. Anyfantis, Alexandros Barnasas, Spyridon Grammatikopoulos, Mihail Sigalas, Panagiotis Poulopoulos
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Coatings
Subjects:
growth
silver
palladium
nanoparticles
optical properties
plasmons
Online Access:https://www.mdpi.com/2079-6412/11/8/893
Description
Summary:Ag/Pd multilayers and AgPd alloyed ultrathin films were deposited on Corning glass by magnetron sputtering. After being annealed in a furnace in air at 460 °C, self-assembled nanoparticles were formed. Localized surface plasmon resonances were observed only for the Ag-rich samples in the full range of the visible light spectrum. The resonance position was found to depend on the initial film thickness. In order to gain further physical insight, rigorous theoretical calculations were carried out via the rigid coupled-wave analysis method for the entire compositional range between Ag and Pd. Theoretical calculations were proven to be in suitable agreement with the experimental results.
ISSN:2079-6412

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