Supplementary Material to "Geometry Dependent Localization of Surface Plasmons on Random Gold Nanoparticle Assemblies"
datacite.contributor | Johannes Schultz | |
datacite.contributor | Kristina Weinel | |
datacite.contributor | Daniel Wolf | |
Type of the data | Dataset | |
Total size of the dataset | 11312365 | |
Author | Kalady, Mohammed Fayis | |
Author | Lubk, Axel | |
Upload date | 2025-01-13T08:12:22Z | |
Publication date | 2025-01-13T08:12:22Z | |
Data of data creation | 2024 | |
Publication date | 2025-01-13 | |
Abstract of the dataset | Assemblies of plasmonic nanoparticles (NPs) support hybridized modes of localized surface plasmons (LSPs), which delocalize in geometrically well-ordered arrangements. Here, the hybridization behavior of LSPs in geometrically completely disordered arrangements of Au NPs fabricated by an e-beam synthesis method is studied. Employing electron energy loss spectroscopy in a scanning transmission electron microscope in combination with numerical simulations, the disorder-driven spatial and spectral localization of the coupled LSP modes that depend on the NP thickness is revealed. Below 0.4nm sample thickness (flat NPs), localization increases towards higher hybridized LSP mode energies. In comparison, above 10nm thickness, a decrease of localization (an increase of delocalization) with higher mode energies is observed. In the intermediate thickness regime, a transition of the energy dependence of the localization between the two limiting cases, exhibiting a transition mode energy with minimal localization, is observed. This behavior is mainly driven by the energy and thickness dependence of the polarizability of the individual NPs. | |
Public reference to this page | https://opara.zih.tu-dresden.de/handle/123456789/1220 | |
Public reference to this page | https://doi.org/10.25532/OPARA-715 | |
Publisher | Technische Universität Dresden | |
Licence | Attribution-NonCommercial-NoDerivatives 4.0 International | en |
URI of the licence text | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
Specification of the discipline(s) | 3 | |
Title of the dataset | Supplementary Material to "Geometry Dependent Localization of Surface Plasmons on Random Gold Nanoparticle Assemblies" | |
Research instruments | FEI Titan Transmission Electron Microscope | |
Project abstract | Assemblies of plasmonic nanoparticles (NPs) support hybridized modes of localized surface plasmons (LSPs), which delocalize in geometrically well-ordered arrangements. Here, the hybridization behavior of LSPs in geometrically completely disordered arrangements of Au NPs fabricated by an e-beam synthesis method is studied. Employing electron energy loss spectroscopy in a scanning transmission electron microscope in combination with numerical simulations, the disorder-driven spatial and spectral localization of the coupled LSP modes that depend on the NP thickness is revealed. Below 0.4nm sample thickness (flat NPs), localization increases towards higher hybridized LSP mode energies. In comparison, above 10nm thickness, a decrease of localization (an increase of delocalization) with higher mode energies is observed. In the intermediate thickness regime, a transition of the energy dependence of the localization between the two limiting cases, exhibiting a transition mode energy with minimal localization, is observed. This behavior is mainly driven by the energy and thickness dependence of the polarizability of the individual NPs. | |
Project title | Geometry Dependent Localization of Surface Plasmons on Random Gold Nanoparticle Assemblies |
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