Ten, A. orcid.org/0000-0002-8020-1907, West, C.A. orcid.org/0000-0001-8921-5275, Jeong, S. et al. (6 more authors) (2023) Bimetallic copper palladium nanorods: plasmonic properties and palladium content effects. Nanoscale Advances, 5 (23). pp. 6524-6532. ISSN 2516-0230
Abstract
Cu is an inexpensive alternative plasmonic metal with optical behaviour comparable to Au but with much poorer environmental stability. Alloying with a more stable metal can improve stability and add functionality, with potential effects on the plasmonic properties. Here we investigate the plasmonic behaviour of Cu nanorods and Cu–CuPd nanorods containing up to 46 mass percent Pd. Monochromated scanning transmission electron microscopy electron energy-loss spectroscopy first reveals the strong length dependence of multiple plasmonic modes in Cu nanorods, where the plasmon peaks redshift and narrow with increasing length. Next, we observe an increased damping (and increased linewidth) with increasing Pd content, accompanied by minimal frequency shift. These results are corroborated by and expanded upon with numerical simulations using the electron-driven discrete dipole approximation. This study indicates that adding Pd to nanostructures of Cu is a promising method to expand the scope of their plasmonic applications.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Author(s). Published by the Royal Society of Chemistry. This is an open access article under the terms of the Creative Commons Attribution License (CC-BY 3.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 30 Jan 2024 12:41 |
Last Modified: | 30 Jan 2024 12:41 |
Status: | Published |
Publisher: | Royal Society of Chemistry |
Identification Number: | 10.1039/d3na00523b |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:208439 |