Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation

Autores
Sorbello, Cecilia; Barja, Beatriz Carmen; Jobbagy, Matias
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A family of Ce0.95−xGdxEu0.05(OH)CO3·H2O monodispersed spherical particles of ca. 200 nm with 0 ≤ x ≤ 0.95 was obtained by the urea homogeneous alkalinization method. These precursors were decomposed at 1273 K under an air atmosphere, resulting in ternary spheroidal phosphors obeying the general formula Ce0.95−xGdxEu0.05O1.975−x/2. Samples with 0.57 ≤ x ≤ 0.95 exhibit a c-type (Ia3) structure related to the Gd2O3 lattice, while a Fm3m-type (CeO2) one was found for 0 ≤ x ≤ 0.19. For both ternary families, the partial substitution of host cations dramatically decreases the efficiency of the ligand to metal charge transfer (LMCT) based emission, with respect to their binary end members. In contrast, the emission obtained from direct excitation of Eu(III) with visible light is enhanced. For both structures, the binary Ce(IV)-Gd(III) host improved emission with respect to Gd0.95Eu0.05O1.5 and Ce0.95Eu0.05O1.975 samples, achieving an optimum value for the sample Ce0.23Gd0.71Eu0.05O1.6 with a Ia3 structure.
Fil: Sorbello, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Barja, Beatriz Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; Argentina
Fil: Jobbagy, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; Argentina
Materia
Luminiscense
Oxides
Cerium
Gadolinium
Europium
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7800
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/7800
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitationSorbello, CeciliaBarja, Beatriz CarmenJobbagy, MatiasLuminiscenseOxidesCeriumGadoliniumEuropiumhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A family of Ce0.95−xGdxEu0.05(OH)CO3·H2O monodispersed spherical particles of ca. 200 nm with 0 ≤ x ≤ 0.95 was obtained by the urea homogeneous alkalinization method. These precursors were decomposed at 1273 K under an air atmosphere, resulting in ternary spheroidal phosphors obeying the general formula Ce0.95−xGdxEu0.05O1.975−x/2. Samples with 0.57 ≤ x ≤ 0.95 exhibit a c-type (Ia3) structure related to the Gd2O3 lattice, while a Fm3m-type (CeO2) one was found for 0 ≤ x ≤ 0.19. For both ternary families, the partial substitution of host cations dramatically decreases the efficiency of the ligand to metal charge transfer (LMCT) based emission, with respect to their binary end members. In contrast, the emission obtained from direct excitation of Eu(III) with visible light is enhanced. For both structures, the binary Ce(IV)-Gd(III) host improved emission with respect to Gd0.95Eu0.05O1.5 and Ce0.95Eu0.05O1.975 samples, achieving an optimum value for the sample Ce0.23Gd0.71Eu0.05O1.6 with a Ia3 structure.Fil: Sorbello, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Barja, Beatriz Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; ArgentinaFil: Jobbagy, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; ArgentinaRoyal Society of Chemistry2013-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7800Sorbello, Cecilia; Barja, Beatriz Carmen; Jobbagy, Matias; Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation; Royal Society of Chemistry; Journal of Materials Chemistry C; 2; 11-2013; 1010-10172050-7526enginfo:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=C3TC31952Kinfo:eu-repo/semantics/altIdentifier/doi/10.1039/c3tc31952kinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:07:30Zoai:ri.conicet.gov.ar:11336/7800instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:07:30.797CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation
title Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation
spellingShingle Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation
Sorbello, Cecilia
Luminiscense
Oxides
Cerium
Gadolinium
Europium
title_short Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation
title_full Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation
title_fullStr Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation
title_full_unstemmed Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation
title_sort Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation
dc.creator.none.fl_str_mv Sorbello, Cecilia
Barja, Beatriz Carmen
Jobbagy, Matias
author Sorbello, Cecilia
author_facet Sorbello, Cecilia
Barja, Beatriz Carmen
Jobbagy, Matias
author_role author
author2 Barja, Beatriz Carmen
Jobbagy, Matias
author2_role author
author
dc.subject.none.fl_str_mv Luminiscense
Oxides
Cerium
Gadolinium
Europium
topic Luminiscense
Oxides
Cerium
Gadolinium
Europium
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A family of Ce0.95−xGdxEu0.05(OH)CO3·H2O monodispersed spherical particles of ca. 200 nm with 0 ≤ x ≤ 0.95 was obtained by the urea homogeneous alkalinization method. These precursors were decomposed at 1273 K under an air atmosphere, resulting in ternary spheroidal phosphors obeying the general formula Ce0.95−xGdxEu0.05O1.975−x/2. Samples with 0.57 ≤ x ≤ 0.95 exhibit a c-type (Ia3) structure related to the Gd2O3 lattice, while a Fm3m-type (CeO2) one was found for 0 ≤ x ≤ 0.19. For both ternary families, the partial substitution of host cations dramatically decreases the efficiency of the ligand to metal charge transfer (LMCT) based emission, with respect to their binary end members. In contrast, the emission obtained from direct excitation of Eu(III) with visible light is enhanced. For both structures, the binary Ce(IV)-Gd(III) host improved emission with respect to Gd0.95Eu0.05O1.5 and Ce0.95Eu0.05O1.975 samples, achieving an optimum value for the sample Ce0.23Gd0.71Eu0.05O1.6 with a Ia3 structure.
Fil: Sorbello, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Barja, Beatriz Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; Argentina
Fil: Jobbagy, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; Argentina
description A family of Ce0.95−xGdxEu0.05(OH)CO3·H2O monodispersed spherical particles of ca. 200 nm with 0 ≤ x ≤ 0.95 was obtained by the urea homogeneous alkalinization method. These precursors were decomposed at 1273 K under an air atmosphere, resulting in ternary spheroidal phosphors obeying the general formula Ce0.95−xGdxEu0.05O1.975−x/2. Samples with 0.57 ≤ x ≤ 0.95 exhibit a c-type (Ia3) structure related to the Gd2O3 lattice, while a Fm3m-type (CeO2) one was found for 0 ≤ x ≤ 0.19. For both ternary families, the partial substitution of host cations dramatically decreases the efficiency of the ligand to metal charge transfer (LMCT) based emission, with respect to their binary end members. In contrast, the emission obtained from direct excitation of Eu(III) with visible light is enhanced. For both structures, the binary Ce(IV)-Gd(III) host improved emission with respect to Gd0.95Eu0.05O1.5 and Ce0.95Eu0.05O1.975 samples, achieving an optimum value for the sample Ce0.23Gd0.71Eu0.05O1.6 with a Ia3 structure.
publishDate 2013
dc.date.none.fl_str_mv 2013-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/7800
Sorbello, Cecilia; Barja, Beatriz Carmen; Jobbagy, Matias; Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation; Royal Society of Chemistry; Journal of Materials Chemistry C; 2; 11-2013; 1010-1017
2050-7526
url http://hdl.handle.net/11336/7800
identifier_str_mv Sorbello, Cecilia; Barja, Beatriz Carmen; Jobbagy, Matias; Monodispersed Ce(IV)-Gd(III)-Eu(III) oxide phosphors for enhanced red emission under visible excitation; Royal Society of Chemistry; Journal of Materials Chemistry C; 2; 11-2013; 1010-1017
2050-7526
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=C3TC31952K
info:eu-repo/semantics/altIdentifier/doi/10.1039/c3tc31952k
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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