Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids

Autores
Ponce, Miguel Adolfo; Parra, Rodrigo; Savu, Raluca; Joanni, Ednan; Bueno, Paulo; Cilense, Mario; Varela, José A.; Castro, Miriam Susana
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work impedance spectroscopy technique was employed in order to characterize the gas-sensing behavior of undoped titanium dioxide (TiO2) polycrystalline thin films. The electrical measurements were performed in a sensor-testing chamber that allows independent control of temperature, pressure, gas composition and flow rate. Frequency measurements, in the range from 40 Hz to 110 MHz, were performed in order to evaluate the gas sensor response of the samples as a function of temperature (50–350 °C) and surrounding atmosphere (vacuum or air at atmospheric pressure). Impedance spectroscopy is a very useful and important technique due to the possibility of using this method for discriminating between grain boundary capacitance (Cgb) and grain boundary resistance (Rgb) contributions. Therefore, a simple model taking into account variations in the intergranular potential barriers is proposed in this work.
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: Parra, Rodrigo. 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. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Savu, Raluca. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Joanni, Ednan. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Bueno, Paulo. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Cilense, Mario. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Varela, José A.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
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
Materia
Titanium Oxide
Thin Films
Gas Sensor
Impedance Spectroscopy
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:11336/35011
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/35011
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloidsPonce, Miguel AdolfoParra, RodrigoSavu, RalucaJoanni, EdnanBueno, PauloCilense, MarioVarela, José A.Castro, Miriam SusanaTitanium OxideThin FilmsGas SensorImpedance Spectroscopyhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work impedance spectroscopy technique was employed in order to characterize the gas-sensing behavior of undoped titanium dioxide (TiO2) polycrystalline thin films. The electrical measurements were performed in a sensor-testing chamber that allows independent control of temperature, pressure, gas composition and flow rate. Frequency measurements, in the range from 40 Hz to 110 MHz, were performed in order to evaluate the gas sensor response of the samples as a function of temperature (50–350 °C) and surrounding atmosphere (vacuum or air at atmospheric pressure). Impedance spectroscopy is a very useful and important technique due to the possibility of using this method for discriminating between grain boundary capacitance (Cgb) and grain boundary resistance (Rgb) contributions. Therefore, a simple model taking into account variations in the intergranular potential barriers is proposed in this work.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: Parra, Rodrigo. 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. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Savu, Raluca. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Joanni, Ednan. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Bueno, Paulo. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Cilense, Mario. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Varela, José A.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: 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; ArgentinaElsevier Science Sa2009-04info: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/11336/35011Ponce, Miguel Adolfo; Parra, Rodrigo; Savu, Raluca; Joanni, Ednan; Bueno, Paulo; et al.; Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids; Elsevier Science Sa; Sensors and Actuators B: Chemical; 139; 4-2009; 447-4520925-4005CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2009.03.066info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925400509002792info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:44:31Zoai:ri.conicet.gov.ar:11336/35011instacron: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 15:44:32.094CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids
title Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids
spellingShingle Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids
Ponce, Miguel Adolfo
Titanium Oxide
Thin Films
Gas Sensor
Impedance Spectroscopy
title_short Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids
title_full Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids
title_fullStr Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids
title_full_unstemmed Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids
title_sort Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids
dc.creator.none.fl_str_mv Ponce, Miguel Adolfo
Parra, Rodrigo
Savu, Raluca
Joanni, Ednan
Bueno, Paulo
Cilense, Mario
Varela, José A.
Castro, Miriam Susana
author Ponce, Miguel Adolfo
author_facet Ponce, Miguel Adolfo
Parra, Rodrigo
Savu, Raluca
Joanni, Ednan
Bueno, Paulo
Cilense, Mario
Varela, José A.
Castro, Miriam Susana
author_role author
author2 Parra, Rodrigo
Savu, Raluca
Joanni, Ednan
Bueno, Paulo
Cilense, Mario
Varela, José A.
Castro, Miriam Susana
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Titanium Oxide
Thin Films
Gas Sensor
Impedance Spectroscopy
topic Titanium Oxide
Thin Films
Gas Sensor
Impedance Spectroscopy
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work impedance spectroscopy technique was employed in order to characterize the gas-sensing behavior of undoped titanium dioxide (TiO2) polycrystalline thin films. The electrical measurements were performed in a sensor-testing chamber that allows independent control of temperature, pressure, gas composition and flow rate. Frequency measurements, in the range from 40 Hz to 110 MHz, were performed in order to evaluate the gas sensor response of the samples as a function of temperature (50–350 °C) and surrounding atmosphere (vacuum or air at atmospheric pressure). Impedance spectroscopy is a very useful and important technique due to the possibility of using this method for discriminating between grain boundary capacitance (Cgb) and grain boundary resistance (Rgb) contributions. Therefore, a simple model taking into account variations in the intergranular potential barriers is proposed in this work.
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: Parra, Rodrigo. 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. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Savu, Raluca. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Joanni, Ednan. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Bueno, Paulo. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Cilense, Mario. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Varela, José A.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
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
description In this work impedance spectroscopy technique was employed in order to characterize the gas-sensing behavior of undoped titanium dioxide (TiO2) polycrystalline thin films. The electrical measurements were performed in a sensor-testing chamber that allows independent control of temperature, pressure, gas composition and flow rate. Frequency measurements, in the range from 40 Hz to 110 MHz, were performed in order to evaluate the gas sensor response of the samples as a function of temperature (50–350 °C) and surrounding atmosphere (vacuum or air at atmospheric pressure). Impedance spectroscopy is a very useful and important technique due to the possibility of using this method for discriminating between grain boundary capacitance (Cgb) and grain boundary resistance (Rgb) contributions. Therefore, a simple model taking into account variations in the intergranular potential barriers is proposed in this work.
publishDate 2009
dc.date.none.fl_str_mv 2009-04
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/11336/35011
Ponce, Miguel Adolfo; Parra, Rodrigo; Savu, Raluca; Joanni, Ednan; Bueno, Paulo; et al.; Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids; Elsevier Science Sa; Sensors and Actuators B: Chemical; 139; 4-2009; 447-452
0925-4005
CONICET Digital
CONICET
url http://hdl.handle.net/11336/35011
identifier_str_mv Ponce, Miguel Adolfo; Parra, Rodrigo; Savu, Raluca; Joanni, Ednan; Bueno, Paulo; et al.; Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids; Elsevier Science Sa; Sensors and Actuators B: Chemical; 139; 4-2009; 447-452
0925-4005
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2009.03.066
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925400509002792
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
_version_ 1846083547634335744
score 13.22299

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