CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors

Autores
Sorbello, Cecilia; Gross, Petra; Strassert, Cristian A.; Jobbagy, Matias; Barja, Beatriz Carmen
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A family of ErIII and ErIII–YbIII based nanophosphors, hosted in monophasic oxidic CeIV–GdIII binary solid solutions, was prepared. The samples were formulated with a constant ErIII content as the activator, with the eventual addition of YbIII as a sensitizer. The amorphous Ce0.94−xGdxEr0.06(OH)CO3⋅H2O and Ce0.94−xGdxEr0.05Yb0.01(OH)CO3⋅H2O precursors were prepared by following the urea method to obtain monodispersed spheres of tunable size ranging from 30 to 450 nm. After being decomposed at 1273 K under an atmosphere of air, the precursors of 200 nm in diameter evolved into monophasic polycrystalline particles preserving the parent shape and size. The role of the composition of the binary matrices in the emission properties was evaluated for two different excitation wavelengths (976 nm and 780 nm) based on the upconversion (UC) emission spectra and their dependence on the incident power. The yield of the UC process is discussed in the framework of established and novel alternative mechanisms. The number of vacancies and mainly the symmetry of the ErIII environment play major roles in the deactivation pathways of the UC emission mechanisms. However, the colours obtained by employing bare CeIV or GdIII hosts are preserved in the related monophasic CeIV-rich or GdIII-rich binary hosts.
Fil: Sorbello, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Fil: Gross, Petra. Carl von Ossietzky University; Alemania
Fil: Strassert, Cristian A.. Universität Münster; Alemania
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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Materia
Energy Transfer
Lanthanides
Luminescence
Photochemistry
Solid-State Structures
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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CONICET Digital (CONICET)
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Consejo Nacional de Investigaciones Científicas y Técnicas
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oai:ri.conicet.gov.ar:11336/65194
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oai_identifier_str oai:ri.conicet.gov.ar:11336/65194
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion PhosphorsSorbello, CeciliaGross, PetraStrassert, Cristian A.Jobbagy, MatiasBarja, Beatriz CarmenEnergy TransferLanthanidesLuminescencePhotochemistrySolid-State Structureshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A family of ErIII and ErIII–YbIII based nanophosphors, hosted in monophasic oxidic CeIV–GdIII binary solid solutions, was prepared. The samples were formulated with a constant ErIII content as the activator, with the eventual addition of YbIII as a sensitizer. The amorphous Ce0.94−xGdxEr0.06(OH)CO3⋅H2O and Ce0.94−xGdxEr0.05Yb0.01(OH)CO3⋅H2O precursors were prepared by following the urea method to obtain monodispersed spheres of tunable size ranging from 30 to 450 nm. After being decomposed at 1273 K under an atmosphere of air, the precursors of 200 nm in diameter evolved into monophasic polycrystalline particles preserving the parent shape and size. The role of the composition of the binary matrices in the emission properties was evaluated for two different excitation wavelengths (976 nm and 780 nm) based on the upconversion (UC) emission spectra and their dependence on the incident power. The yield of the UC process is discussed in the framework of established and novel alternative mechanisms. The number of vacancies and mainly the symmetry of the ErIII environment play major roles in the deactivation pathways of the UC emission mechanisms. However, the colours obtained by employing bare CeIV or GdIII hosts are preserved in the related monophasic CeIV-rich or GdIII-rich binary hosts.Fil: Sorbello, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; ArgentinaFil: Gross, Petra. Carl von Ossietzky University; AlemaniaFil: Strassert, Cristian A.. Universität Münster; AlemaniaFil: 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; ArgentinaWiley VCH Verlag2017-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/65194Sorbello, Cecilia; Gross, Petra; Strassert, Cristian A. ; Jobbagy, Matias; Barja, Beatriz Carmen; CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors; Wiley VCH Verlag; Chemphyschem; 18; 10; 5-2017; 1407-14141439-4235CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/cphc.201601262info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/cphc.201601262info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:46:12Zoai:ri.conicet.gov.ar:11336/65194instacron: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 14:46:12.969CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors
title CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors
spellingShingle CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors
Sorbello, Cecilia
Energy Transfer
Lanthanides
Luminescence
Photochemistry
Solid-State Structures
title_short CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors
title_full CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors
title_fullStr CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors
title_full_unstemmed CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors
title_sort CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors
dc.creator.none.fl_str_mv Sorbello, Cecilia
Gross, Petra
Strassert, Cristian A.
Jobbagy, Matias
Barja, Beatriz Carmen
author Sorbello, Cecilia
author_facet Sorbello, Cecilia
Gross, Petra
Strassert, Cristian A.
Jobbagy, Matias
Barja, Beatriz Carmen
author_role author
author2 Gross, Petra
Strassert, Cristian A.
Jobbagy, Matias
Barja, Beatriz Carmen
author2_role author
author
author
author
dc.subject.none.fl_str_mv Energy Transfer
Lanthanides
Luminescence
Photochemistry
Solid-State Structures
topic Energy Transfer
Lanthanides
Luminescence
Photochemistry
Solid-State Structures
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 ErIII and ErIII–YbIII based nanophosphors, hosted in monophasic oxidic CeIV–GdIII binary solid solutions, was prepared. The samples were formulated with a constant ErIII content as the activator, with the eventual addition of YbIII as a sensitizer. The amorphous Ce0.94−xGdxEr0.06(OH)CO3⋅H2O and Ce0.94−xGdxEr0.05Yb0.01(OH)CO3⋅H2O precursors were prepared by following the urea method to obtain monodispersed spheres of tunable size ranging from 30 to 450 nm. After being decomposed at 1273 K under an atmosphere of air, the precursors of 200 nm in diameter evolved into monophasic polycrystalline particles preserving the parent shape and size. The role of the composition of the binary matrices in the emission properties was evaluated for two different excitation wavelengths (976 nm and 780 nm) based on the upconversion (UC) emission spectra and their dependence on the incident power. The yield of the UC process is discussed in the framework of established and novel alternative mechanisms. The number of vacancies and mainly the symmetry of the ErIII environment play major roles in the deactivation pathways of the UC emission mechanisms. However, the colours obtained by employing bare CeIV or GdIII hosts are preserved in the related monophasic CeIV-rich or GdIII-rich binary hosts.
Fil: Sorbello, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Fil: Gross, Petra. Carl von Ossietzky University; Alemania
Fil: Strassert, Cristian A.. Universität Münster; Alemania
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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
description A family of ErIII and ErIII–YbIII based nanophosphors, hosted in monophasic oxidic CeIV–GdIII binary solid solutions, was prepared. The samples were formulated with a constant ErIII content as the activator, with the eventual addition of YbIII as a sensitizer. The amorphous Ce0.94−xGdxEr0.06(OH)CO3⋅H2O and Ce0.94−xGdxEr0.05Yb0.01(OH)CO3⋅H2O precursors were prepared by following the urea method to obtain monodispersed spheres of tunable size ranging from 30 to 450 nm. After being decomposed at 1273 K under an atmosphere of air, the precursors of 200 nm in diameter evolved into monophasic polycrystalline particles preserving the parent shape and size. The role of the composition of the binary matrices in the emission properties was evaluated for two different excitation wavelengths (976 nm and 780 nm) based on the upconversion (UC) emission spectra and their dependence on the incident power. The yield of the UC process is discussed in the framework of established and novel alternative mechanisms. The number of vacancies and mainly the symmetry of the ErIII environment play major roles in the deactivation pathways of the UC emission mechanisms. However, the colours obtained by employing bare CeIV or GdIII hosts are preserved in the related monophasic CeIV-rich or GdIII-rich binary hosts.
publishDate 2017
dc.date.none.fl_str_mv 2017-05
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/11336/65194
Sorbello, Cecilia; Gross, Petra; Strassert, Cristian A. ; Jobbagy, Matias; Barja, Beatriz Carmen; CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors; Wiley VCH Verlag; Chemphyschem; 18; 10; 5-2017; 1407-1414
1439-4235
CONICET Digital
CONICET
url http://hdl.handle.net/11336/65194
identifier_str_mv Sorbello, Cecilia; Gross, Petra; Strassert, Cristian A. ; Jobbagy, Matias; Barja, Beatriz Carmen; CeIV–GdIII Mixed Oxides as Hosts for ErIII-Based Upconversion Phosphors; Wiley VCH Verlag; Chemphyschem; 18; 10; 5-2017; 1407-1414
1439-4235
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/cphc.201601262
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/cphc.201601262
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
dc.publisher.none.fl_str_mv Wiley VCH Verlag
publisher.none.fl_str_mv Wiley VCH Verlag
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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