Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light Emission

Transparent coatings made of rare-earth doped nanocrystals, also known as nanophosphors, feature efficient photoluminescence and excellent thermal and optical stability. Herein, we demonstrate that the optical antennas prepared by colloidal lithography render thin nanophosphor films with a brighter...

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Autores: Viaña, José M., Romero Aguilar, Manuel, Lozano, Gabriel, Míguez, Hernán
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/283470
Acceso en línea:http://hdl.handle.net/10261/283470
Access Level:acceso abierto
Palabra clave:Plasmonics
Patterning
Nanosphere lithography
Rare-earth nanoparticles
Transparent thin films
Photoluminescence
Localized surface plasmon resonance (LSPR)
Local density of optical states (LDOS)
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spelling Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light EmissionViaña, José M.Romero Aguilar, ManuelLozano, GabrielMíguez, HernánPlasmonicsPatterningNanosphere lithographyRare-earth nanoparticlesTransparent thin filmsPhotoluminescenceLocalized surface plasmon resonance (LSPR)Local density of optical states (LDOS)Transparent coatings made of rare-earth doped nanocrystals, also known as nanophosphors, feature efficient photoluminescence and excellent thermal and optical stability. Herein, we demonstrate that the optical antennas prepared by colloidal lithography render thin nanophosphor films with a brighter emission. In particular, we fabricate gold nanostructures in the proximity of GdVO4:Eu3+ nanophosphors by metal evaporation using a mask made of a monolayer of polymer beads arranged in a triangular lattice. Optical modes supported by the antennas can be controlled by tuning the diameter of the polymer spheres in the colloidal mask, which determines the shape of the gold nanostructure, as confirmed by numerical simulations. Confocal microscopy reveals that metallic antennas induce brighter photoluminescence at specific spatial regions of the nanophosphor film at targeted frequencies as a result of the coupling between gold nanostructures and nanophosphors. Patterning of nanophosphor thin layers with arrays of metallic antennas offers an inexpensive nanophotonic solution to develop bright emitting coatings of interest for color conversion, labeling, or anti-counterfeiting.This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 Research and Innovation Programme (NANOPHOM, grant agreement no. 715832). M.R. thanks CSIC for funding through a JAE Intro ICU scholarship (JAEICU-21-ICMS-21).Peer reviewedAmerican Chemical SocietyEuropean Research CouncilEuropean CommissionConsejo Superior de Investigaciones Científicas (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/283470reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/715832https://doi.org/10.1021/acsanm.2c03258Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2834702026-05-22T06:33:51Z
dc.title.none.fl_str_mv Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light Emission
title Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light Emission
spellingShingle Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light Emission
Viaña, José M.
Plasmonics
Patterning
Nanosphere lithography
Rare-earth nanoparticles
Transparent thin films
Photoluminescence
Localized surface plasmon resonance (LSPR)
Local density of optical states (LDOS)
title_short Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light Emission
title_full Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light Emission
title_fullStr Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light Emission
title_full_unstemmed Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light Emission
title_sort Nanoantennas Patterned by Colloidal Lithography for Enhanced Nanophosphor Light Emission
dc.creator.none.fl_str_mv Viaña, José M.
Romero Aguilar, Manuel
Lozano, Gabriel
Míguez, Hernán
author Viaña, José M.
author_facet Viaña, José M.
Romero Aguilar, Manuel
Lozano, Gabriel
Míguez, Hernán
author_role author
author2 Romero Aguilar, Manuel
Lozano, Gabriel
Míguez, Hernán
author2_role author
author
author
dc.contributor.none.fl_str_mv European Research Council
European Commission
Consejo Superior de Investigaciones Científicas (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Plasmonics
Patterning
Nanosphere lithography
Rare-earth nanoparticles
Transparent thin films
Photoluminescence
Localized surface plasmon resonance (LSPR)
Local density of optical states (LDOS)
topic Plasmonics
Patterning
Nanosphere lithography
Rare-earth nanoparticles
Transparent thin films
Photoluminescence
Localized surface plasmon resonance (LSPR)
Local density of optical states (LDOS)
description Transparent coatings made of rare-earth doped nanocrystals, also known as nanophosphors, feature efficient photoluminescence and excellent thermal and optical stability. Herein, we demonstrate that the optical antennas prepared by colloidal lithography render thin nanophosphor films with a brighter emission. In particular, we fabricate gold nanostructures in the proximity of GdVO4:Eu3+ nanophosphors by metal evaporation using a mask made of a monolayer of polymer beads arranged in a triangular lattice. Optical modes supported by the antennas can be controlled by tuning the diameter of the polymer spheres in the colloidal mask, which determines the shape of the gold nanostructure, as confirmed by numerical simulations. Confocal microscopy reveals that metallic antennas induce brighter photoluminescence at specific spatial regions of the nanophosphor film at targeted frequencies as a result of the coupling between gold nanostructures and nanophosphors. Patterning of nanophosphor thin layers with arrays of metallic antennas offers an inexpensive nanophotonic solution to develop bright emitting coatings of interest for color conversion, labeling, or anti-counterfeiting.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/283470
url http://hdl.handle.net/10261/283470
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/715832
https://doi.org/10.1021/acsanm.2c03258
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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