Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2

Autores
Ferreira, Diego; Vaz, Isabela; Rubinger, Rero; Buono, Camila; Rocha, Leandro; Ponce, Miguel Adolfo; Longo, Elson; Simoes, Wilma Alexandre; Moura, Francisco
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Low resistive electrodes based on Co and Mo co-doped SnO2 were prepared by the conventional solid-state reaction and sintered at 1250 °C for 2 h. Concentration of Co2O3 precursor was unchanged (1 mol%), while MoO3 was varied (0.25, 0.50 to 0.75 mol%) to promote conductivity. The structural and microstructural characterization revealed that the samples have a rutile-type structure without secondary phases and large rutile grains with low porosity. Electrical measurements on DC mode have shown a semiconductor behaviour of the SnO2 samples doped with 0.25 and 0.75 at. % of Mo at temperatures below 50 K, indicating their suitability for low-temperature electronic applications. Impedance measurements indicate reduced energy barriers of less than 1 meV formed between highly conductive crystallites for the SnO2 samples doped with 0.25 and 0.75 at. % of Mo. The sample with Mo content of 0.50 at. % presented a higher energy barrier at a few hundredths of eV, with space charges at the crystallite boundaries.
Fil: Ferreira, Diego. Universidade Federal de Itajubá; Brasil
Fil: Vaz, Isabela. Universidade Federal de Itajubá; Brasil
Fil: Rubinger, Rero. Universidade Federal de Itajubá; Brasil
Fil: Buono, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Rocha, Leandro. Universidade Federal do São Carlos; Brasil
Fil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Longo, Elson. Universidade Federal do São Carlos; Brasil
Fil: Simoes, Wilma Alexandre. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Moura, Francisco. Universidade Federal de Itajubá; Brasil
Materia
Co/Mo co-doped SnO2
Complex impedance spectroscopy
Low-temperature electronic applications
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:11336/121307
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2Ferreira, DiegoVaz, IsabelaRubinger, ReroBuono, CamilaRocha, LeandroPonce, Miguel AdolfoLongo, ElsonSimoes, Wilma AlexandreMoura, FranciscoCo/Mo co-doped SnO2Complex impedance spectroscopyLow-temperature electronic applicationshttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Low resistive electrodes based on Co and Mo co-doped SnO2 were prepared by the conventional solid-state reaction and sintered at 1250 °C for 2 h. Concentration of Co2O3 precursor was unchanged (1 mol%), while MoO3 was varied (0.25, 0.50 to 0.75 mol%) to promote conductivity. The structural and microstructural characterization revealed that the samples have a rutile-type structure without secondary phases and large rutile grains with low porosity. Electrical measurements on DC mode have shown a semiconductor behaviour of the SnO2 samples doped with 0.25 and 0.75 at. % of Mo at temperatures below 50 K, indicating their suitability for low-temperature electronic applications. Impedance measurements indicate reduced energy barriers of less than 1 meV formed between highly conductive crystallites for the SnO2 samples doped with 0.25 and 0.75 at. % of Mo. The sample with Mo content of 0.50 at. % presented a higher energy barrier at a few hundredths of eV, with space charges at the crystallite boundaries.Fil: Ferreira, Diego. Universidade Federal de Itajubá; BrasilFil: Vaz, Isabela. Universidade Federal de Itajubá; BrasilFil: Rubinger, Rero. Universidade Federal de Itajubá; BrasilFil: Buono, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Rocha, Leandro. Universidade Federal do São Carlos; BrasilFil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Longo, Elson. Universidade Federal do São Carlos; BrasilFil: Simoes, Wilma Alexandre. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Moura, Francisco. Universidade Federal de Itajubá; BrasilUniversity of Novi Sad, Faculty of Technology2019-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/121307Ferreira, Diego; Vaz, Isabela; Rubinger, Rero; Buono, Camila; Rocha, Leandro; et al.; Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2; University of Novi Sad, Faculty of Technology; Processing and Application of Ceramics; 13; 4; 11-2019; 360-3672406-1034CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.doiserbia.nb.rs/Article.aspx?ID=1820-61311904360Finfo:eu-repo/semantics/altIdentifier/doi/10.2298/PAC1904360Finfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:37:01Zoai:ri.conicet.gov.ar:11336/121307instacron: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:34982025-11-12 09:37:01.912CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2
title Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2
spellingShingle Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2
Ferreira, Diego
Co/Mo co-doped SnO2
Complex impedance spectroscopy
Low-temperature electronic applications
title_short Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2
title_full Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2
title_fullStr Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2
title_full_unstemmed Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2
title_sort Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2
dc.creator.none.fl_str_mv Ferreira, Diego
Vaz, Isabela
Rubinger, Rero
Buono, Camila
Rocha, Leandro
Ponce, Miguel Adolfo
Longo, Elson
Simoes, Wilma Alexandre
Moura, Francisco
author Ferreira, Diego
author_facet Ferreira, Diego
Vaz, Isabela
Rubinger, Rero
Buono, Camila
Rocha, Leandro
Ponce, Miguel Adolfo
Longo, Elson
Simoes, Wilma Alexandre
Moura, Francisco
author_role author
author2 Vaz, Isabela
Rubinger, Rero
Buono, Camila
Rocha, Leandro
Ponce, Miguel Adolfo
Longo, Elson
Simoes, Wilma Alexandre
Moura, Francisco
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Co/Mo co-doped SnO2
Complex impedance spectroscopy
Low-temperature electronic applications
topic Co/Mo co-doped SnO2
Complex impedance spectroscopy
Low-temperature electronic applications
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Low resistive electrodes based on Co and Mo co-doped SnO2 were prepared by the conventional solid-state reaction and sintered at 1250 °C for 2 h. Concentration of Co2O3 precursor was unchanged (1 mol%), while MoO3 was varied (0.25, 0.50 to 0.75 mol%) to promote conductivity. The structural and microstructural characterization revealed that the samples have a rutile-type structure without secondary phases and large rutile grains with low porosity. Electrical measurements on DC mode have shown a semiconductor behaviour of the SnO2 samples doped with 0.25 and 0.75 at. % of Mo at temperatures below 50 K, indicating their suitability for low-temperature electronic applications. Impedance measurements indicate reduced energy barriers of less than 1 meV formed between highly conductive crystallites for the SnO2 samples doped with 0.25 and 0.75 at. % of Mo. The sample with Mo content of 0.50 at. % presented a higher energy barrier at a few hundredths of eV, with space charges at the crystallite boundaries.
Fil: Ferreira, Diego. Universidade Federal de Itajubá; Brasil
Fil: Vaz, Isabela. Universidade Federal de Itajubá; Brasil
Fil: Rubinger, Rero. Universidade Federal de Itajubá; Brasil
Fil: Buono, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Rocha, Leandro. Universidade Federal do São Carlos; Brasil
Fil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Longo, Elson. Universidade Federal do São Carlos; Brasil
Fil: Simoes, Wilma Alexandre. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Moura, Francisco. Universidade Federal de Itajubá; Brasil
description Low resistive electrodes based on Co and Mo co-doped SnO2 were prepared by the conventional solid-state reaction and sintered at 1250 °C for 2 h. Concentration of Co2O3 precursor was unchanged (1 mol%), while MoO3 was varied (0.25, 0.50 to 0.75 mol%) to promote conductivity. The structural and microstructural characterization revealed that the samples have a rutile-type structure without secondary phases and large rutile grains with low porosity. Electrical measurements on DC mode have shown a semiconductor behaviour of the SnO2 samples doped with 0.25 and 0.75 at. % of Mo at temperatures below 50 K, indicating their suitability for low-temperature electronic applications. Impedance measurements indicate reduced energy barriers of less than 1 meV formed between highly conductive crystallites for the SnO2 samples doped with 0.25 and 0.75 at. % of Mo. The sample with Mo content of 0.50 at. % presented a higher energy barrier at a few hundredths of eV, with space charges at the crystallite boundaries.
publishDate 2019
dc.date.none.fl_str_mv 2019-11
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/11336/121307
Ferreira, Diego; Vaz, Isabela; Rubinger, Rero; Buono, Camila; Rocha, Leandro; et al.; Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2; University of Novi Sad, Faculty of Technology; Processing and Application of Ceramics; 13; 4; 11-2019; 360-367
2406-1034
CONICET Digital
CONICET
url http://hdl.handle.net/11336/121307
identifier_str_mv Ferreira, Diego; Vaz, Isabela; Rubinger, Rero; Buono, Camila; Rocha, Leandro; et al.; Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2; University of Novi Sad, Faculty of Technology; Processing and Application of Ceramics; 13; 4; 11-2019; 360-367
2406-1034
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.doiserbia.nb.rs/Article.aspx?ID=1820-61311904360F
info:eu-repo/semantics/altIdentifier/doi/10.2298/PAC1904360F
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 University of Novi Sad, Faculty of Technology
publisher.none.fl_str_mv University of Novi Sad, Faculty of Technology
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
_version_ 1848597284618502144
score 13.25334

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