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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/38605
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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 Técnicas2025-09-29T10:38:03Zoai: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:34982025-09-29 10:38:04.135CONICET 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 |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |