Plasmonic coupling in closed-packed ordered gallium nanoparticles

Plasmonic gallium (Ga) nanoparticles (NPs) are well known to exhibit good performance in numerous applications such as surface enhanced fluorescence and Raman spectroscopy or biosensing. However, to reach the optimal optical performance, the strength of the localized surface plasmon resonances (LSPR...

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Autores: Catalán-Gómez, S., Bran, C., Vázquez, M., Vázquez, L., Pau Vizcaíno, José Luis, Redondo Cubero, Andrés
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/699562
Acceso en línea:http://hdl.handle.net/10486/699562
https://dx.doi.org/10.1038/s41598-020-61090-3
Access Level:acceso abierto
Palabra clave:Plasmonics
Gallium
Aluminum
Física
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spelling Plasmonic coupling in closed-packed ordered gallium nanoparticlesCatalán-Gómez, S.Bran, C.Vázquez, M.Vázquez, L.Pau Vizcaíno, José LuisRedondo Cubero, AndrésPlasmonicsGalliumAluminumFísicaPlasmonic gallium (Ga) nanoparticles (NPs) are well known to exhibit good performance in numerous applications such as surface enhanced fluorescence and Raman spectroscopy or biosensing. However, to reach the optimal optical performance, the strength of the localized surface plasmon resonances (LSPRs) must be enhanced particularly by suitable narrowing the NP size distribution among other factors. With this purpose, our last work demonstrated the production of hexagonal ordered arrays of Ga NPs by using templates of aluminium (Al) shallow pit arrays, whose LSPRs were observed in the VIS region. The quantitative analysis of the optical properties by spectroscopic ellipsometry confirmed an outstanding improvement of the LSPR intensity and full width at half maximum (FWHM) due to the imposed ordering. Here, by engineering the template dimensions, and therefore by tuning Ga NPs size, we expand the LSPRs of the Ga NPs to cover a wider range of the electromagnetic spectrum from the UV to the IR regions. More interestingly, the factors that cause this optical performance improvement are studied with the universal plasmon ruler equation, supported with discrete dipole approximation simulations. The results allow us to conclude that the plasmonic coupling between NPs originated in the ordered systems is the main cause for the optimized optical responseThe research is supported by the MINECO (CTQ2014-53334-C2-2-R, CTQ2017-84309-C2-2-R and MAT201676824-C3-1-R) and Comunidad de Madrid (P2018/NMT4349 and S2018/NMT-4321 NANOMAGCOST) projects. ARC acknowledges Ramón y Cajal program (under contract number RYC-2015-18047)Nature ResearchDepartamento de Física AplicadaFacultad de CienciasElectrónica y Semiconductores (EXP C-032)20202020-03-06research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/699562https://dx.doi.org/10.1038/s41598-020-61090-3reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6995622026-06-23T12:46:27Z
dc.title.none.fl_str_mv Plasmonic coupling in closed-packed ordered gallium nanoparticles
title Plasmonic coupling in closed-packed ordered gallium nanoparticles
spellingShingle Plasmonic coupling in closed-packed ordered gallium nanoparticles
Catalán-Gómez, S.
Plasmonics
Gallium
Aluminum
Física
title_short Plasmonic coupling in closed-packed ordered gallium nanoparticles
title_full Plasmonic coupling in closed-packed ordered gallium nanoparticles
title_fullStr Plasmonic coupling in closed-packed ordered gallium nanoparticles
title_full_unstemmed Plasmonic coupling in closed-packed ordered gallium nanoparticles
title_sort Plasmonic coupling in closed-packed ordered gallium nanoparticles
dc.creator.none.fl_str_mv Catalán-Gómez, S.
Bran, C.
Vázquez, M.
Vázquez, L.
Pau Vizcaíno, José Luis
Redondo Cubero, Andrés
author Catalán-Gómez, S.
author_facet Catalán-Gómez, S.
Bran, C.
Vázquez, M.
Vázquez, L.
Pau Vizcaíno, José Luis
Redondo Cubero, Andrés
author_role author
author2 Bran, C.
Vázquez, M.
Vázquez, L.
Pau Vizcaíno, José Luis
Redondo Cubero, Andrés
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Aplicada
Facultad de Ciencias
Electrónica y Semiconductores (EXP C-032)
dc.subject.none.fl_str_mv Plasmonics
Gallium
Aluminum
Física
topic Plasmonics
Gallium
Aluminum
Física
description Plasmonic gallium (Ga) nanoparticles (NPs) are well known to exhibit good performance in numerous applications such as surface enhanced fluorescence and Raman spectroscopy or biosensing. However, to reach the optimal optical performance, the strength of the localized surface plasmon resonances (LSPRs) must be enhanced particularly by suitable narrowing the NP size distribution among other factors. With this purpose, our last work demonstrated the production of hexagonal ordered arrays of Ga NPs by using templates of aluminium (Al) shallow pit arrays, whose LSPRs were observed in the VIS region. The quantitative analysis of the optical properties by spectroscopic ellipsometry confirmed an outstanding improvement of the LSPR intensity and full width at half maximum (FWHM) due to the imposed ordering. Here, by engineering the template dimensions, and therefore by tuning Ga NPs size, we expand the LSPRs of the Ga NPs to cover a wider range of the electromagnetic spectrum from the UV to the IR regions. More interestingly, the factors that cause this optical performance improvement are studied with the universal plasmon ruler equation, supported with discrete dipole approximation simulations. The results allow us to conclude that the plasmonic coupling between NPs originated in the ordered systems is the main cause for the optimized optical response
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-03-06
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/699562
https://dx.doi.org/10.1038/s41598-020-61090-3
url http://hdl.handle.net/10486/699562
https://dx.doi.org/10.1038/s41598-020-61090-3
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature Research
publisher.none.fl_str_mv Nature Research
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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