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 80SiO2-20LaF3 doped with Er3+ 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 trea...

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Autores: Gorni, Giulio, Velázquez, José J., Mosa Ruiz, Jadra, Mather, Glenn C., Serrano, Aida, Vila, María, Castro, Germán Rafael, Bravo Roldán, David, Balda, Rolindes, Fernández, Joaquín, Durán, Alicia, Castro, Yolanda
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/715008
Acceso en línea:http://hdl.handle.net/10486/715008
https://dx.doi.org/10.3390/nano9040530
Access Level:acceso abierto
Palabra clave:Glass-ceramic
oxyfluoride
rare-earth
crystallization
sol-gel
Física
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spelling Transparent sol-gel oxyfluoride glass-ceramics with high crystalline fraction and study of re incorporationGorni, GiulioVelázquez, José J.Mosa Ruiz, JadraMather, Glenn C.Serrano, AidaVila, MaríaCastro, Germán RafaelBravo Roldán, DavidBalda, RolindesFernández, JoaquínDurán, AliciaCastro, YolandaGlass-ceramicoxyfluoriderare-earthcrystallizationsol-gelFísicaTransparent oxyfluoride glass-ceramic films and self-supported layers with composition 80SiO2-20LaF3 doped with Er3+ 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 LaF3 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 LaF3 nanocrystals into the glass matrix. X-ray absorption spectroscopy and electron paramagnetic resonance confirmed that the Er3+ ions are preferentially embedded in the low phonon-energy LaF3 nanocrystals. Moreover, photoluminescence (PL) measurements confirmed the incorporation of dopants in the LaF3 nanocrystals. The effective concentration of rare-earth ions in the LaF3 nanocrystals is also estimated by X-ray absorption spectroscopyThis 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 GIU17/014. We acknowledge The European Synchrotron Radiation Facility (ESRF), MINECO, and CSIC for the provision of measurements using the BM25-SpLine beamline. This paper is a part of dissemination activities of project FunGlass. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 739566. A.S. acknowledges the financial support from the Comunidad de Madrid for an “Atracción de Talento Investigador” contract (No. 2017-t2/IND5395)MDPI AGDepartamento de Física de MaterialesFacultad de Ciencias20192019-04-03research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/715008https://dx.doi.org/10.3390/nano9040530reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengEuropean Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 739566open accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7150082026-06-23T12:46:27Z
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
Física
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, José J.
Mosa Ruiz, Jadra
Mather, Glenn C.
Serrano, Aida
Vila, María
Castro, Germán Rafael
Bravo Roldán, David
Balda, Rolindes
Fernández, Joaquín
Durán, Alicia
Castro, Yolanda
author Gorni, Giulio
author_facet Gorni, Giulio
Velázquez, José J.
Mosa Ruiz, Jadra
Mather, Glenn C.
Serrano, Aida
Vila, María
Castro, Germán Rafael
Bravo Roldán, David
Balda, Rolindes
Fernández, Joaquín
Durán, Alicia
Castro, Yolanda
author_role author
author2 Velázquez, José J.
Mosa Ruiz, Jadra
Mather, Glenn C.
Serrano, Aida
Vila, María
Castro, Germán Rafael
Bravo Roldán, David
Balda, Rolindes
Fernández, Joaquín
Durán, Alicia
Castro, Yolanda
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física de Materiales
Facultad de Ciencias
dc.subject.none.fl_str_mv Glass-ceramic
oxyfluoride
rare-earth
crystallization
sol-gel
Física
topic Glass-ceramic
oxyfluoride
rare-earth
crystallization
sol-gel
Física
description Transparent oxyfluoride glass-ceramic films and self-supported layers with composition 80SiO2-20LaF3 doped with Er3+ 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 LaF3 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 LaF3 nanocrystals into the glass matrix. X-ray absorption spectroscopy and electron paramagnetic resonance confirmed that the Er3+ ions are preferentially embedded in the low phonon-energy LaF3 nanocrystals. Moreover, photoluminescence (PL) measurements confirmed the incorporation of dopants in the LaF3 nanocrystals. The effective concentration of rare-earth ions in the LaF3 nanocrystals is also estimated by X-ray absorption spectroscopy
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-04-03
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/10486/715008
https://dx.doi.org/10.3390/nano9040530
url http://hdl.handle.net/10486/715008
https://dx.doi.org/10.3390/nano9040530
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 739566
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
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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