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 m were obtained after heat treat...

Descripción completa

Detalles Bibliográficos
Autores: Gorni, Giulio, Velázquez, José J., Mosa, Jadra, Mather, Glenn C., Serrano, Aida, Vila, María, Castro, Germán R., Bravo, David, Balda de la Cruz, Rolindes, Fernández Rodríguez, Joaquín Manuel, Durán, Alicia, Castro, Yolanda
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/32683
Acceso en línea:http://hdl.handle.net/10810/32683
Access Level:acceso abierto
Palabra clave:crystallization
glass-ceramic
oxyfluoride
rare-earth
sol-gel
id ES_3041b2ecd94801bbd7d78b2489f1f74a
oai_identifier_str oai:addi.ehu.eus:10810/32683
network_acronym_str ES
network_name_str España
repository_id_str
spelling Transparent Sol-Gel Oxyfluoride Glass-Ceramics with High Crystalline Fraction and Study of RE IncorporationGorni, GiulioVelázquez, José J.Mosa, JadraMather, Glenn C.Serrano, AidaVila, MaríaCastro, Germán R.Bravo, DavidBalda de la Cruz, RolindesFernández Rodríguez, Joaquín ManuelDurán, AliciaCastro, Yolandacrystallizationglass-ceramicoxyfluoriderare-earthsol-gelTransparent 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 m 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.MDPI201920192019info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/32683reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://www.mdpi.com/2079-4991/9/4/530info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).Atribución 3.0 Españaoai:addi.ehu.eus:10810/326832026-06-18T09:23:17Z
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
crystallization
glass-ceramic
oxyfluoride
rare-earth
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, José J.
Mosa, Jadra
Mather, Glenn C.
Serrano, Aida
Vila, María
Castro, Germán R.
Bravo, David
Balda de la Cruz, Rolindes
Fernández Rodríguez, Joaquín Manuel
Durán, Alicia
Castro, Yolanda
author Gorni, Giulio
author_facet Gorni, Giulio
Velázquez, José J.
Mosa, Jadra
Mather, Glenn C.
Serrano, Aida
Vila, María
Castro, Germán R.
Bravo, David
Balda de la Cruz, Rolindes
Fernández Rodríguez, Joaquín Manuel
Durán, Alicia
Castro, Yolanda
author_role author
author2 Velázquez, José J.
Mosa, Jadra
Mather, Glenn C.
Serrano, Aida
Vila, María
Castro, Germán R.
Bravo, David
Balda de la Cruz, Rolindes
Fernández Rodríguez, Joaquín Manuel
Durán, Alicia
Castro, Yolanda
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv crystallization
glass-ceramic
oxyfluoride
rare-earth
sol-gel
topic crystallization
glass-ceramic
oxyfluoride
rare-earth
sol-gel
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 m 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
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/32683
url http://hdl.handle.net/10810/32683
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.mdpi.com/2079-4991/9/4/530
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405533092446208
score 15,301603

Similares en LA Referencia