Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clusters

The following article appeared in Journal of Applied Physics 115.6 (2014): 063512 and may be found at http://scitation.aip.org/content/aip/journal/jap/115/6/10.1063/1.4861136

Detalles Bibliográficos
Autores: Figueiredo, N. M., Sánchez-García, José Angel, Escobar Galindo, Ramón, Climent Font, Aurelio, Cavaleiro, Albano Maria V S V, Kubart, Tomás
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/662050
Acceso en línea:http://hdl.handle.net/10486/662050
https://dx.doi.org/10.1063/1.4861136
Access Level:acceso abierto
Palabra clave:Gold
Nanoparticles
Refractive index
Ozone
Sputter deposition
Física
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spelling Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clustersFigueiredo, N. M.Sánchez-García, José AngelEscobar Galindo, RamónCliment Font, AurelioCavaleiro, Albano Maria V S VKubart, TomásGoldNanoparticlesRefractive indexOzoneSputter depositionFísicaThe following article appeared in Journal of Applied Physics 115.6 (2014): 063512 and may be found at http://scitation.aip.org/content/aip/journal/jap/115/6/10.1063/1.4861136In the present study, nanocomposite coatings of Au clusters embedded in two different oxides, TiO2 and Al2O3, were synthesized using pulsed DC magnetron sputtering. The depositions were carried out in three steps, by depositing the oxide, the Au clusters, and again the oxide. The deposition time of the Au clusters was varied in order to achieve different cluster sizes, morphologies, and nanocomposite topographies. The structure, microstructure, morphology, and the optical properties of the coatings were studied. With the increase in Au content, red-shifted surface plasmon resonance (SPR) peaks with higher intensity and increased widths were observed due to changes in the metal clusters sizes and morphology and due to interparticle effects. In order to relate the peculiar SPR extinction bands with the different clusters shapes and distributions, a simulation of the optical properties of the nanocomposites was performed making use of the Renormalized Maxwell-Garnett approach. A theoretical study concerning the refractive index sensitivity was made in order to predict the optimal coatings parameters for sensing experiments. The increased surface area and the strong SPR extinction bands make these coatings suitable for gas sensing and also catalysis, albeit many other application fields can be envisaged.This research was sponsored by FEDER funds through the program COMPETE, Programa Operacional Factores de Competitividade, by national funds through FCT, Fundacao para a Ciencia e a Tecnologia, under the Projects PEst-C/EME/UI0285/2013 and CENTRO-07-0224-FEDER-002001 (Mais Centro SCT_2011_02_001_4637), and through the Spanish Ministry of Science and Innovation by Projects FUNCOAT CSD2008-00023 and AIB2010PT-00241. R.E.G. wishes also to thank the MCINN for the financial support within the Ramón y Cajal programme. Funding by the European Community through Project Nano4Color is gratefully acknowledged.American Institute of Physics.Departamento de Física AplicadaFacultad de Ciencias20142014-01-01research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/662050https://dx.doi.org/10.1063/1.4861136reponame: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:10486/6620502026-06-23T12:46:27Z
dc.title.none.fl_str_mv Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clusters
title Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clusters
spellingShingle Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clusters
Figueiredo, N. M.
Gold
Nanoparticles
Refractive index
Ozone
Sputter deposition
Física
title_short Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clusters
title_full Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clusters
title_fullStr Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clusters
title_full_unstemmed Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clusters
title_sort Optical properties and refractive index sensitivity of reactive sputtered oxide coatings with embedded Au clusters
dc.creator.none.fl_str_mv Figueiredo, N. M.
Sánchez-García, José Angel
Escobar Galindo, Ramón
Climent Font, Aurelio
Cavaleiro, Albano Maria V S V
Kubart, Tomás
author Figueiredo, N. M.
author_facet Figueiredo, N. M.
Sánchez-García, José Angel
Escobar Galindo, Ramón
Climent Font, Aurelio
Cavaleiro, Albano Maria V S V
Kubart, Tomás
author_role author
author2 Sánchez-García, José Angel
Escobar Galindo, Ramón
Climent Font, Aurelio
Cavaleiro, Albano Maria V S V
Kubart, Tomás
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Aplicada
Facultad de Ciencias
dc.subject.none.fl_str_mv Gold
Nanoparticles
Refractive index
Ozone
Sputter deposition
Física
topic Gold
Nanoparticles
Refractive index
Ozone
Sputter deposition
Física
description The following article appeared in Journal of Applied Physics 115.6 (2014): 063512 and may be found at http://scitation.aip.org/content/aip/journal/jap/115/6/10.1063/1.4861136
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01
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/10486/662050
https://dx.doi.org/10.1063/1.4861136
url http://hdl.handle.net/10486/662050
https://dx.doi.org/10.1063/1.4861136
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 American Institute of Physics.
publisher.none.fl_str_mv American Institute of Physics.
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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score 15,300724

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