Structural and optical properties of rare earth doped low melting point phosphate glasses

A Low Melting Point Phospate Glass (LMMPG) has been doped with five rare earth (RE) cations, specifically Nd, Sm, Eu, Tb and Er, as well as double doping with Eu-Tb, which encompass most of the 4f period. They were prepared by a melt-quenching method, using a phosphate glass with chemical compositio...

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Autores: Pecharromán, Carlos, Marcelo, Gema, González, Sara, Hosseinpour, Maryam, Menéndez, José Luis, Cabal, Belén
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/422439
Acceso en línea:http://hdl.handle.net/10261/422439
Access Level:acceso abierto
Palabra clave:Low melting point glass
Rare earths
Glass stability
Photoluminescence
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spelling Structural and optical properties of rare earth doped low melting point phosphate glassesPecharromán, CarlosMarcelo, GemaGonzález, SaraHosseinpour, MaryamMenéndez, José LuisCabal, BelénLow melting point glassRare earthsGlass stabilityPhotoluminescenceA Low Melting Point Phospate Glass (LMMPG) has been doped with five rare earth (RE) cations, specifically Nd, Sm, Eu, Tb and Er, as well as double doping with Eu-Tb, which encompass most of the 4f period. They were prepared by a melt-quenching method, using a phosphate glass with chemical composition (mol.%) 45 P2O5, 10 CaO, and 45 Na2O, where 1 mol.% of calcium oxide was substituted with the corresponding rare earth oxide. Whereas melting point of glasses is approximately 550 °C, doped LMPPG beads were obtained from melt at 900 °C, in order to reduce the viscosity which is a key factor to remove bubbles. However, such a low temperature prevented us to employ RE oxides, as refractory RE oxides, as they may be not completely solved, introducing optical defects in the solid bodies. Instead, RE cations were supplied by means of chlorides, which decompose at temperatures very close to the melting point of the LMPPG, preventing the formation of RE oxides. As a result, beads exhibit a high degree of transparency which has a beneficial effect in the luminescent properties. Quantitative structural characterization by 31P NMR, FTIR, and DTA determines that RE cations strongly bond to the phosphate chain edges. This interaction enhances the glass stability as well as allowing a perfect dispersion of these cations inside the matrix, minimizing quenching and self-absorption processes. Additionally, it has been showed, that multiple doping is also accepted by the amorphous matrix, in such manner that different color hues can be obtained. This versatile and high quality doped glasses could be employed as visible and infrared light sources, anti-counterfeit materials, and other photonic applications which requires efficient emitters based on RE.We thank the Ministry of Science, Innovation and Universities of Spain for the funding through the projects: CNS2022-135568 and PID2020-119130GB-I00.Peer reviewedElsevierAgencia Estatal de Investigación (España)Ministerio de Ciencia, Innovación y Universidades (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/422439reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-119130GB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CNS2022-135568The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1016/j.ceramint.2025.09.312https://doi.org/10.1016/j.ceramint.2025.09.312Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4224392026-05-22T06:33:51Z
dc.title.none.fl_str_mv Structural and optical properties of rare earth doped low melting point phosphate glasses
title Structural and optical properties of rare earth doped low melting point phosphate glasses
spellingShingle Structural and optical properties of rare earth doped low melting point phosphate glasses
Pecharromán, Carlos
Low melting point glass
Rare earths
Glass stability
Photoluminescence
title_short Structural and optical properties of rare earth doped low melting point phosphate glasses
title_full Structural and optical properties of rare earth doped low melting point phosphate glasses
title_fullStr Structural and optical properties of rare earth doped low melting point phosphate glasses
title_full_unstemmed Structural and optical properties of rare earth doped low melting point phosphate glasses
title_sort Structural and optical properties of rare earth doped low melting point phosphate glasses
dc.creator.none.fl_str_mv Pecharromán, Carlos
Marcelo, Gema
González, Sara
Hosseinpour, Maryam
Menéndez, José Luis
Cabal, Belén
author Pecharromán, Carlos
author_facet Pecharromán, Carlos
Marcelo, Gema
González, Sara
Hosseinpour, Maryam
Menéndez, José Luis
Cabal, Belén
author_role author
author2 Marcelo, Gema
González, Sara
Hosseinpour, Maryam
Menéndez, José Luis
Cabal, Belén
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Ministerio de Ciencia, Innovación y Universidades (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Low melting point glass
Rare earths
Glass stability
Photoluminescence
topic Low melting point glass
Rare earths
Glass stability
Photoluminescence
description A Low Melting Point Phospate Glass (LMMPG) has been doped with five rare earth (RE) cations, specifically Nd, Sm, Eu, Tb and Er, as well as double doping with Eu-Tb, which encompass most of the 4f period. They were prepared by a melt-quenching method, using a phosphate glass with chemical composition (mol.%) 45 P2O5, 10 CaO, and 45 Na2O, where 1 mol.% of calcium oxide was substituted with the corresponding rare earth oxide. Whereas melting point of glasses is approximately 550 °C, doped LMPPG beads were obtained from melt at 900 °C, in order to reduce the viscosity which is a key factor to remove bubbles. However, such a low temperature prevented us to employ RE oxides, as refractory RE oxides, as they may be not completely solved, introducing optical defects in the solid bodies. Instead, RE cations were supplied by means of chlorides, which decompose at temperatures very close to the melting point of the LMPPG, preventing the formation of RE oxides. As a result, beads exhibit a high degree of transparency which has a beneficial effect in the luminescent properties. Quantitative structural characterization by 31P NMR, FTIR, and DTA determines that RE cations strongly bond to the phosphate chain edges. This interaction enhances the glass stability as well as allowing a perfect dispersion of these cations inside the matrix, minimizing quenching and self-absorption processes. Additionally, it has been showed, that multiple doping is also accepted by the amorphous matrix, in such manner that different color hues can be obtained. This versatile and high quality doped glasses could be employed as visible and infrared light sources, anti-counterfeit materials, and other photonic applications which requires efficient emitters based on RE.
publishDate 2025
dc.date.none.fl_str_mv 2025
2026
2026
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/10261/422439
url http://hdl.handle.net/10261/422439
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-119130GB-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CNS2022-135568
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1016/j.ceramint.2025.09.312
https://doi.org/10.1016/j.ceramint.2025.09.312
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 Elsevier
publisher.none.fl_str_mv Elsevier
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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