Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route

Autores
Otal, Eugenio Hernan; Sileo, Elsa Ester; Aguirre, Myriam H.; Fabregas, Ismael Oscar; Kim, Manuela Leticia
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Lanthanide doped ZnO are interesting materials for optical and electrical applications. The wide band gap of this semiconductor makes it transparent in the visible range (Egap = 3.2 eV), allowing a sharp emission from intra shell transition from the lanthanides. From the electrical side, ZnO is a widely used material in varistors and its electrical properties can be tailored by the inclusion of lanthanides. Both applications are influenced by the location of the lanthanides, grain boundaries or lattice inclusion. Yb doped ZnO samples obtained by wet chemistry route were annealed at different temperatures and characterized by Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD), Rietveld refinement of XRD data, and X-ray Absorption Fine Structure (XAFS). These techniques allowed to follow the changes occurred in the matrix and the Yb environment. The use of the Cauchy continuous wavelet transform allowed identifying a second coordination shell composed of Zn atoms, supporting the observations from XRD Rietveld refinement and XAFS fittings. The information obtained confirmed the incorporation of Yb in Oh sites of the wurtzite structure without Yb2O3 clustering in the lattice.
Fil: Otal, Eugenio Hernan. Universidad Tecnológica Nacional. Facultad Regional Santa Cruz; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina
Fil: Sileo, Elsa Ester. 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
Fil: Aguirre, Myriam H.. Universidad de Zaragoza; España
Fil: Fabregas, Ismael Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina
Fil: Kim, Manuela Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Universidad Tecnológica Nacional. Facultad Regional Santa Cruz; Argentina
Materia
EXAFS
LANTHANIDES DOPING
OPTICAL MATERIALS
PRECIPITATION
SEMICONDUCTOR
WAVELET ANALYSIS
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:11336/38605
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/38605
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry routeOtal, Eugenio HernanSileo, Elsa EsterAguirre, Myriam H.Fabregas, Ismael OscarKim, Manuela LeticiaEXAFSLANTHANIDES DOPINGOPTICAL MATERIALSPRECIPITATIONSEMICONDUCTORWAVELET ANALYSIShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Lanthanide doped ZnO are interesting materials for optical and electrical applications. The wide band gap of this semiconductor makes it transparent in the visible range (Egap = 3.2 eV), allowing a sharp emission from intra shell transition from the lanthanides. From the electrical side, ZnO is a widely used material in varistors and its electrical properties can be tailored by the inclusion of lanthanides. Both applications are influenced by the location of the lanthanides, grain boundaries or lattice inclusion. Yb doped ZnO samples obtained by wet chemistry route were annealed at different temperatures and characterized by Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD), Rietveld refinement of XRD data, and X-ray Absorption Fine Structure (XAFS). These techniques allowed to follow the changes occurred in the matrix and the Yb environment. The use of the Cauchy continuous wavelet transform allowed identifying a second coordination shell composed of Zn atoms, supporting the observations from XRD Rietveld refinement and XAFS fittings. The information obtained confirmed the incorporation of Yb in Oh sites of the wurtzite structure without Yb2O3 clustering in the lattice.Fil: Otal, Eugenio Hernan. Universidad Tecnológica Nacional. Facultad Regional Santa Cruz; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; ArgentinaFil: Sileo, Elsa Ester. 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; ArgentinaFil: Aguirre, Myriam H.. Universidad de Zaragoza; EspañaFil: Fabregas, Ismael Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; ArgentinaFil: Kim, Manuela Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Universidad Tecnológica Nacional. Facultad Regional Santa Cruz; ArgentinaElsevier Science Sa2015-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/38605Otal, Eugenio Hernan; Sileo, Elsa Ester; Aguirre, Myriam H.; Fabregas, Ismael Oscar; Kim, Manuela Leticia; Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route; Elsevier Science Sa; Journal of Alloys and Compounds; 622; 2-2015; 115-1200925-8388CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925838814023597info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jallcom.2014.09.186info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:35:30Zoai:ri.conicet.gov.ar:11336/38605instacron: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 15:35:31.114CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route
title Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route
spellingShingle Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route
Otal, Eugenio Hernan
EXAFS
LANTHANIDES DOPING
OPTICAL MATERIALS
PRECIPITATION
SEMICONDUCTOR
WAVELET ANALYSIS
title_short Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route
title_full Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route
title_fullStr Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route
title_full_unstemmed Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route
title_sort Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route
dc.creator.none.fl_str_mv Otal, Eugenio Hernan
Sileo, Elsa Ester
Aguirre, Myriam H.
Fabregas, Ismael Oscar
Kim, Manuela Leticia
author Otal, Eugenio Hernan
author_facet Otal, Eugenio Hernan
Sileo, Elsa Ester
Aguirre, Myriam H.
Fabregas, Ismael Oscar
Kim, Manuela Leticia
author_role author
author2 Sileo, Elsa Ester
Aguirre, Myriam H.
Fabregas, Ismael Oscar
Kim, Manuela Leticia
author2_role author
author
author
author
dc.subject.none.fl_str_mv EXAFS
LANTHANIDES DOPING
OPTICAL MATERIALS
PRECIPITATION
SEMICONDUCTOR
WAVELET ANALYSIS
topic EXAFS
LANTHANIDES DOPING
OPTICAL MATERIALS
PRECIPITATION
SEMICONDUCTOR
WAVELET ANALYSIS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Lanthanide doped ZnO are interesting materials for optical and electrical applications. The wide band gap of this semiconductor makes it transparent in the visible range (Egap = 3.2 eV), allowing a sharp emission from intra shell transition from the lanthanides. From the electrical side, ZnO is a widely used material in varistors and its electrical properties can be tailored by the inclusion of lanthanides. Both applications are influenced by the location of the lanthanides, grain boundaries or lattice inclusion. Yb doped ZnO samples obtained by wet chemistry route were annealed at different temperatures and characterized by Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD), Rietveld refinement of XRD data, and X-ray Absorption Fine Structure (XAFS). These techniques allowed to follow the changes occurred in the matrix and the Yb environment. The use of the Cauchy continuous wavelet transform allowed identifying a second coordination shell composed of Zn atoms, supporting the observations from XRD Rietveld refinement and XAFS fittings. The information obtained confirmed the incorporation of Yb in Oh sites of the wurtzite structure without Yb2O3 clustering in the lattice.
Fil: Otal, Eugenio Hernan. Universidad Tecnológica Nacional. Facultad Regional Santa Cruz; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina
Fil: Sileo, Elsa Ester. 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
Fil: Aguirre, Myriam H.. Universidad de Zaragoza; España
Fil: Fabregas, Ismael Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina
Fil: Kim, Manuela Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Universidad Tecnológica Nacional. Facultad Regional Santa Cruz; Argentina
description Lanthanide doped ZnO are interesting materials for optical and electrical applications. The wide band gap of this semiconductor makes it transparent in the visible range (Egap = 3.2 eV), allowing a sharp emission from intra shell transition from the lanthanides. From the electrical side, ZnO is a widely used material in varistors and its electrical properties can be tailored by the inclusion of lanthanides. Both applications are influenced by the location of the lanthanides, grain boundaries or lattice inclusion. Yb doped ZnO samples obtained by wet chemistry route were annealed at different temperatures and characterized by Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD), Rietveld refinement of XRD data, and X-ray Absorption Fine Structure (XAFS). These techniques allowed to follow the changes occurred in the matrix and the Yb environment. The use of the Cauchy continuous wavelet transform allowed identifying a second coordination shell composed of Zn atoms, supporting the observations from XRD Rietveld refinement and XAFS fittings. The information obtained confirmed the incorporation of Yb in Oh sites of the wurtzite structure without Yb2O3 clustering in the lattice.
publishDate 2015
dc.date.none.fl_str_mv 2015-02
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/11336/38605
Otal, Eugenio Hernan; Sileo, Elsa Ester; Aguirre, Myriam H.; Fabregas, Ismael Oscar; Kim, Manuela Leticia; Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route; Elsevier Science Sa; Journal of Alloys and Compounds; 622; 2-2015; 115-120
0925-8388
CONICET Digital
CONICET
url http://hdl.handle.net/11336/38605
identifier_str_mv Otal, Eugenio Hernan; Sileo, Elsa Ester; Aguirre, Myriam H.; Fabregas, Ismael Oscar; Kim, Manuela Leticia; Structural characterization and EXAFS wavelet analysis of Yb doped ZnO by wet chemistry route; Elsevier Science Sa; Journal of Alloys and Compounds; 622; 2-2015; 115-120
0925-8388
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925838814023597
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jallcom.2014.09.186
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
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
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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