Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE Incorporation

Transparent oxyfluoride glass-ceramic films and self-supported layers with composition 80SiO<sub>2</sub>-20LaF<sub>3</sub> doped with Er<sup>3+</sup> have been successfully synthesized by sol-gel process for the first time. Crack-free films and self-supported laye...

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Autores: Gorni, Giulio, Velázquez, J. J., Mosa Ruiz, Jadra, Mather, Glenn C., Serrano Rubio, Aída, Vila, María, Castro, Germán R., Bravo, David, Balda, Rolindes, Fernández, Joaquín, Durán, Alicia, Castro Martín, Yolanda
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/180713
Acceso en línea:http://hdl.handle.net/10261/180713
Access Level:acceso abierto
Palabra clave:Glass-ceramic
Oxyfluoride
Rare-earth
Crystallization
Sol-gel
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spelling Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE IncorporationGorni, GiulioVelázquez, J. J.Mosa Ruiz, JadraMather, Glenn C.Serrano Rubio, AídaVila, MaríaCastro, Germán R.Bravo, DavidBalda, RolindesFernández, JoaquínDurán, AliciaCastro Martín, YolandaGlass-ceramicOxyfluorideRare-earthCrystallizationSol-gelTransparent oxyfluoride glass-ceramic films and self-supported layers with composition 80SiO<sub>2</sub>-20LaF<sub>3</sub> doped with Er<sup>3+</sup> have been successfully synthesized by sol-gel process for the first time. Crack-free films and self-supported layer with a maximum thickness up to 1.4 µm were obtained after heat treatment at the low temperature of 550 °C for 1 min, resulting in a LaF<sub>3</sub> crystal fraction of 18 wt%, as confirmed by quantitative Rietveld refinement. This is the highest value reported up to now for transparent oxyfluoride glass-ceramics prepared by sol-gel. This work provides a new synthesis strategy and opens the way to a wide range of potential applications of oxyfluoride glass-ceramics. The characterization by a wide range of techniques revealed the homogeneous precipitation of LaF<sub>3</sub> nanocrystals into the glass matrix. X-ray absorption spectroscopy and electron paramagnetic resonance confirmed that the Er<sup>3+</sup> ions are preferentially embedded in the low phonon-energy LaF<sub>3</sub> nanocrystals. Moreover, photoluminescence (PL) measurements confirmed the incorporation of dopants in the LaF<sub>3</sub> nanocrystals. The effective concentration of rare-earth ions in the LaF<sub>3</sub> nanocrystals is also estimated by X-ray absorption spectroscopy.This research was funded by Spanish National projects MAT2017-87035-C2-1-P/2-P (AEI/FEDER, UE), MAT2016-75362-C3-1-R, and Basque Country University PPG17/07 and GIU17/014We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI)Multidisciplinary Digital Publishing InstituteConsejo Superior de Investigaciones Científicas (España)Ministerio de Economía y Competitividad (España)Universidad del País VascoEuropean CommissionGorni, Giulio [0000-0001-8227-9022]Velázquez, Jose J. [0000-0001-7672-0539]Mather, Glenn Christopher [0000-0003-0779-4619]Serrano Rubio, Aída [0000-0002-6162-0014]Balda, Rolindes [0000-0001-6882-3167]Castro, Yolanda [0000-0001-5747-2162]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/180713reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-87035-C2-1-Pinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2016-75362-C3-1-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-87035-C2-2-Phttp://dx.doi.org/10.3390/nano9040530Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1807132026-05-22T06:33:51Z
dc.title.none.fl_str_mv Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE Incorporation
title Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE Incorporation
spellingShingle Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE Incorporation
Gorni, Giulio
Glass-ceramic
Oxyfluoride
Rare-earth
Crystallization
Sol-gel
title_short Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE Incorporation
title_full Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE Incorporation
title_fullStr Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE Incorporation
title_full_unstemmed Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE Incorporation
title_sort Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE Incorporation
dc.creator.none.fl_str_mv Gorni, Giulio
Velázquez, J. J.
Mosa Ruiz, Jadra
Mather, Glenn C.
Serrano Rubio, Aída
Vila, María
Castro, Germán R.
Bravo, David
Balda, Rolindes
Fernández, Joaquín
Durán, Alicia
Castro Martín, Yolanda
author Gorni, Giulio
author_facet Gorni, Giulio
Velázquez, J. J.
Mosa Ruiz, Jadra
Mather, Glenn C.
Serrano Rubio, Aída
Vila, María
Castro, Germán R.
Bravo, David
Balda, Rolindes
Fernández, Joaquín
Durán, Alicia
Castro Martín, Yolanda
author_role author
author2 Velázquez, J. J.
Mosa Ruiz, Jadra
Mather, Glenn C.
Serrano Rubio, Aída
Vila, María
Castro, Germán R.
Bravo, David
Balda, Rolindes
Fernández, Joaquín
Durán, Alicia
Castro Martín, Yolanda
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
Ministerio de Economía y Competitividad (España)
Universidad del País Vasco
European Commission
Gorni, Giulio [0000-0001-8227-9022]
Velázquez, Jose J. [0000-0001-7672-0539]
Mather, Glenn Christopher [0000-0003-0779-4619]
Serrano Rubio, Aída [0000-0002-6162-0014]
Balda, Rolindes [0000-0001-6882-3167]
Castro, Yolanda [0000-0001-5747-2162]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Glass-ceramic
Oxyfluoride
Rare-earth
Crystallization
Sol-gel
topic Glass-ceramic
Oxyfluoride
Rare-earth
Crystallization
Sol-gel
description Transparent oxyfluoride glass-ceramic films and self-supported layers with composition 80SiO<sub>2</sub>-20LaF<sub>3</sub> doped with Er<sup>3+</sup> have been successfully synthesized by sol-gel process for the first time. Crack-free films and self-supported layer with a maximum thickness up to 1.4 µm were obtained after heat treatment at the low temperature of 550 °C for 1 min, resulting in a LaF<sub>3</sub> crystal fraction of 18 wt%, as confirmed by quantitative Rietveld refinement. This is the highest value reported up to now for transparent oxyfluoride glass-ceramics prepared by sol-gel. This work provides a new synthesis strategy and opens the way to a wide range of potential applications of oxyfluoride glass-ceramics. The characterization by a wide range of techniques revealed the homogeneous precipitation of LaF<sub>3</sub> nanocrystals into the glass matrix. X-ray absorption spectroscopy and electron paramagnetic resonance confirmed that the Er<sup>3+</sup> ions are preferentially embedded in the low phonon-energy LaF<sub>3</sub> nanocrystals. Moreover, photoluminescence (PL) measurements confirmed the incorporation of dopants in the LaF<sub>3</sub> nanocrystals. The effective concentration of rare-earth ions in the LaF<sub>3</sub> nanocrystals is also estimated by X-ray absorption spectroscopy.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/180713
url http://hdl.handle.net/10261/180713
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-87035-C2-1-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2016-75362-C3-1-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-87035-C2-2-P
http://dx.doi.org/10.3390/nano9040530
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
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instname_str Consejo Superior de Investigaciones Científicas (CSIC)
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