Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres

Autores
Ponce, Miguel Adolfo; Castro, Miriam Susana; Aldao, Celso Manuel
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
It was found that resistance and capacitance of Pd-doped SnO2 thick films are largely modified by CO reaction with previous adsorbed oxygen at the grain surface while in undoped SnO2 thick-films adsorption and reaction processes influence the response. In our analysis, the presence of Schottky potential barriers at the grain boundaries was consistent with the observed results. An increasing of sensitivity due to the addition of Pd is found to be related to the enhanced reaction of CO with the previous oxygen adsorbed at the grains surface. Mechanisms responsible for the sensor response are discussed.
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: Castro, Miriam Susana. 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: Aldao, Celso Manuel. 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
Materia
A. FILMS
B. SURFACES
C. ELECTRICAL PROPERTIES
E. SENSORS
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:11336/39014
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/39014
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheresPonce, Miguel AdolfoCastro, Miriam SusanaAldao, Celso ManuelA. FILMSB. SURFACESC. ELECTRICAL PROPERTIESE. SENSORShttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2It was found that resistance and capacitance of Pd-doped SnO2 thick films are largely modified by CO reaction with previous adsorbed oxygen at the grain surface while in undoped SnO2 thick-films adsorption and reaction processes influence the response. In our analysis, the presence of Schottky potential barriers at the grain boundaries was consistent with the observed results. An increasing of sensitivity due to the addition of Pd is found to be related to the enhanced reaction of CO with the previous oxygen adsorbed at the grains surface. Mechanisms responsible for the sensor response are discussed.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; ArgentinaFil: Castro, Miriam Susana. 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: Aldao, Celso Manuel. 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; ArgentinaElsevier2005-07-25info: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/11336/39014Ponce, Miguel Adolfo; Castro, Miriam Susana; Aldao, Celso Manuel; Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres; Elsevier; Ceramics International; 32; 7; 25-7-2005; 733-7370272-8842CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0272884205001628info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2005.05.013info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:43:15Zoai:ri.conicet.gov.ar:11336/39014instacron: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 10:43:15.912CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres
title Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres
spellingShingle Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres
Ponce, Miguel Adolfo
A. FILMS
B. SURFACES
C. ELECTRICAL PROPERTIES
E. SENSORS
title_short Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres
title_full Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres
title_fullStr Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres
title_full_unstemmed Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres
title_sort Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres
dc.creator.none.fl_str_mv Ponce, Miguel Adolfo
Castro, Miriam Susana
Aldao, Celso Manuel
author Ponce, Miguel Adolfo
author_facet Ponce, Miguel Adolfo
Castro, Miriam Susana
Aldao, Celso Manuel
author_role author
author2 Castro, Miriam Susana
Aldao, Celso Manuel
author2_role author
author
dc.subject.none.fl_str_mv A. FILMS
B. SURFACES
C. ELECTRICAL PROPERTIES
E. SENSORS
topic A. FILMS
B. SURFACES
C. ELECTRICAL PROPERTIES
E. SENSORS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv It was found that resistance and capacitance of Pd-doped SnO2 thick films are largely modified by CO reaction with previous adsorbed oxygen at the grain surface while in undoped SnO2 thick-films adsorption and reaction processes influence the response. In our analysis, the presence of Schottky potential barriers at the grain boundaries was consistent with the observed results. An increasing of sensitivity due to the addition of Pd is found to be related to the enhanced reaction of CO with the previous oxygen adsorbed at the grains surface. Mechanisms responsible for the sensor response are discussed.
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: Castro, Miriam Susana. 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: Aldao, Celso Manuel. 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
description It was found that resistance and capacitance of Pd-doped SnO2 thick films are largely modified by CO reaction with previous adsorbed oxygen at the grain surface while in undoped SnO2 thick-films adsorption and reaction processes influence the response. In our analysis, the presence of Schottky potential barriers at the grain boundaries was consistent with the observed results. An increasing of sensitivity due to the addition of Pd is found to be related to the enhanced reaction of CO with the previous oxygen adsorbed at the grains surface. Mechanisms responsible for the sensor response are discussed.
publishDate 2005
dc.date.none.fl_str_mv 2005-07-25
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/11336/39014
Ponce, Miguel Adolfo; Castro, Miriam Susana; Aldao, Celso Manuel; Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres; Elsevier; Ceramics International; 32; 7; 25-7-2005; 733-737
0272-8842
CONICET Digital
CONICET
url http://hdl.handle.net/11336/39014
identifier_str_mv Ponce, Miguel Adolfo; Castro, Miriam Susana; Aldao, Celso Manuel; Resistance and capacitance analysis of Pd-doped and undoped SnO2 thick films sensors exposed to CO atmospheres; Elsevier; Ceramics International; 32; 7; 25-7-2005; 733-737
0272-8842
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0272884205001628
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2005.05.013
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 Elsevier
publisher.none.fl_str_mv Elsevier
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_ 1844614467408625664
score 13.070432

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