Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion

Autores
Aldao, Celso Manuel; Schipani, Federico; Ponce, Miguel Adolfo; Joanni, E.; Williams, Federico Jose
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Conduction mechanisms in polycrystalline SnO2 thick sensing films were investigated by means of DC electrical resistance during heating?cooling cycles. Samples were maintained at relatively high temper- atures in H2 or O2 ambient atmospheres before performing electrical measurements under vacuum or before performing XPS measurements in order to determine band bending. Results suggest that inter- grains present Schottky barriers that are responsible for the observed conductivities regardless of gas pre-treatment. Oxygen diffusion modulates barrier widths affecting conductivity through tunneling transport. The electrical response to subsequent exposure to an oxygen atmosphere is consistent with our interpretation.
Fil: Aldao, Celso Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Schipani, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Joanni, E.. CTI Renato Archer; Brasil
Fil: Williams, Federico Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Materia
Tin Oxide
Semiconductors
Tunneling
Xps
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/12510
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/12510
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusionAldao, Celso ManuelSchipani, FedericoPonce, Miguel AdolfoJoanni, E.Williams, Federico JoseTin OxideSemiconductorsTunnelingXpshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Conduction mechanisms in polycrystalline SnO2 thick sensing films were investigated by means of DC electrical resistance during heating?cooling cycles. Samples were maintained at relatively high temper- atures in H2 or O2 ambient atmospheres before performing electrical measurements under vacuum or before performing XPS measurements in order to determine band bending. Results suggest that inter- grains present Schottky barriers that are responsible for the observed conductivities regardless of gas pre-treatment. Oxygen diffusion modulates barrier widths affecting conductivity through tunneling transport. The electrical response to subsequent exposure to an oxygen atmosphere is consistent with our interpretation.Fil: Aldao, Celso Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: Schipani, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: Joanni, E.. CTI Renato Archer; BrasilFil: Williams, Federico Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaElsevier2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/12510Aldao, Celso Manuel; Schipani, Federico; Ponce, Miguel Adolfo; Joanni, E.; Williams, Federico Jose; Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion; Elsevier; Sensors And Actuators B-chemical; 193; 1-2014; 428-4330925-4005enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925400513014640info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2013.11.114info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:23:19Zoai:ri.conicet.gov.ar:11336/12510instacron: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 14:23:19.847CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion
title Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion
spellingShingle Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion
Aldao, Celso Manuel
Tin Oxide
Semiconductors
Tunneling
Xps
title_short Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion
title_full Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion
title_fullStr Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion
title_full_unstemmed Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion
title_sort Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion
dc.creator.none.fl_str_mv Aldao, Celso Manuel
Schipani, Federico
Ponce, Miguel Adolfo
Joanni, E.
Williams, Federico Jose
author Aldao, Celso Manuel
author_facet Aldao, Celso Manuel
Schipani, Federico
Ponce, Miguel Adolfo
Joanni, E.
Williams, Federico Jose
author_role author
author2 Schipani, Federico
Ponce, Miguel Adolfo
Joanni, E.
Williams, Federico Jose
author2_role author
author
author
author
dc.subject.none.fl_str_mv Tin Oxide
Semiconductors
Tunneling
Xps
topic Tin Oxide
Semiconductors
Tunneling
Xps
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Conduction mechanisms in polycrystalline SnO2 thick sensing films were investigated by means of DC electrical resistance during heating?cooling cycles. Samples were maintained at relatively high temper- atures in H2 or O2 ambient atmospheres before performing electrical measurements under vacuum or before performing XPS measurements in order to determine band bending. Results suggest that inter- grains present Schottky barriers that are responsible for the observed conductivities regardless of gas pre-treatment. Oxygen diffusion modulates barrier widths affecting conductivity through tunneling transport. The electrical response to subsequent exposure to an oxygen atmosphere is consistent with our interpretation.
Fil: Aldao, Celso Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Schipani, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Joanni, E.. CTI Renato Archer; Brasil
Fil: Williams, Federico Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
description Conduction mechanisms in polycrystalline SnO2 thick sensing films were investigated by means of DC electrical resistance during heating?cooling cycles. Samples were maintained at relatively high temper- atures in H2 or O2 ambient atmospheres before performing electrical measurements under vacuum or before performing XPS measurements in order to determine band bending. Results suggest that inter- grains present Schottky barriers that are responsible for the observed conductivities regardless of gas pre-treatment. Oxygen diffusion modulates barrier widths affecting conductivity through tunneling transport. The electrical response to subsequent exposure to an oxygen atmosphere is consistent with our interpretation.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/12510
Aldao, Celso Manuel; Schipani, Federico; Ponce, Miguel Adolfo; Joanni, E.; Williams, Federico Jose; Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion; Elsevier; Sensors And Actuators B-chemical; 193; 1-2014; 428-433
0925-4005
url http://hdl.handle.net/11336/12510
identifier_str_mv Aldao, Celso Manuel; Schipani, Federico; Ponce, Miguel Adolfo; Joanni, E.; Williams, Federico Jose; Conductivity in SnO2 polycrystalline thick film gas sensors: Tunneling electron transport and oxygen diffusion; Elsevier; Sensors And Actuators B-chemical; 193; 1-2014; 428-433
0925-4005
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/S0925400513014640
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2013.11.114
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
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_ 1846082641521016832
score 13.22299

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