Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion

Autores
Malagù, Cesare; Giberti, Alessio; Morandi, Sara; Aldao, Celso Manuel
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A model for conductance in n-type non-degenerate semiconductors is proposed and applied to polycrystalline SnO2 used as a gas sensor. Particular attention is devoted to the fundamental mechanism of Schottky barrier formation due to surface states in nanostructured grains. Electrical and absorption infra-red spectroscopic analysis constitutes strong evidence for oxygen diffusion into the tin oxide grains. The model is then extended to include oxygen in- and out-diffusion. Thus, it is possible to explain the “long-term” resistance drift in oxygen for fully depleted grained samples in terms of tunneling through the double barrier.
Fil: Malagù, Cesare. Universita Di Ferrara; Italia. Istituto di Acustica e Sensoristica “O. M. Corbino”; Italia
Fil: Giberti, Alessio. Universita Di Ferrara; Italia
Fil: Morandi, Sara. Universita di Torino; Italia
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. Facultad de Ingeniería; Argentina
Materia
NANOESTRUCTURE TIN OXIDE
METAL OXIDE SENSORS
VACANCIES
SURFACE STATES
TUNNELING
CONDUCTION BANDS
FOURIER TRANSFORM INFRARED 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:11336/10312
Acceder
id CONICETDig_9f0213df7c0246d5ba18865b02a47bce
oai_identifier_str oai:ri.conicet.gov.ar:11336/10312
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusionMalagù, CesareGiberti, AlessioMorandi, SaraAldao, Celso ManuelNANOESTRUCTURE TIN OXIDEMETAL OXIDE SENSORSVACANCIESSURFACE STATESTUNNELINGCONDUCTION BANDSFOURIER TRANSFORM INFRARED SPECTROSCOPYhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A model for conductance in n-type non-degenerate semiconductors is proposed and applied to polycrystalline SnO2 used as a gas sensor. Particular attention is devoted to the fundamental mechanism of Schottky barrier formation due to surface states in nanostructured grains. Electrical and absorption infra-red spectroscopic analysis constitutes strong evidence for oxygen diffusion into the tin oxide grains. The model is then extended to include oxygen in- and out-diffusion. Thus, it is possible to explain the “long-term” resistance drift in oxygen for fully depleted grained samples in terms of tunneling through the double barrier.Fil: Malagù, Cesare. Universita Di Ferrara; Italia. Istituto di Acustica e Sensoristica “O. M. Corbino”; ItaliaFil: Giberti, Alessio. Universita Di Ferrara; ItaliaFil: Morandi, Sara. Universita di Torino; ItaliaFil: 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. Facultad de Ingeniería; ArgentinaAmerican Institute Of Physics2011-11-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10312Malagù, Cesare; Giberti, Alessio; Morandi, Sara; Aldao, Celso Manuel; Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion; American Institute Of Physics; Journal Of Applied Physics; 110; 9; 7-11-2011; 519-5270021-8979enginfo:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/10.1063/1.3658870info:eu-repo/semantics/altIdentifier/doi/10.1063/1.3658870info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:19:32Zoai:ri.conicet.gov.ar:11336/10312instacron: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 10:19:32.609CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion
title Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion
spellingShingle Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion
Malagù, Cesare
NANOESTRUCTURE TIN OXIDE
METAL OXIDE SENSORS
VACANCIES
SURFACE STATES
TUNNELING
CONDUCTION BANDS
FOURIER TRANSFORM INFRARED SPECTROSCOPY
title_short Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion
title_full Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion
title_fullStr Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion
title_full_unstemmed Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion
title_sort Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion
dc.creator.none.fl_str_mv Malagù, Cesare
Giberti, Alessio
Morandi, Sara
Aldao, Celso Manuel
author Malagù, Cesare
author_facet Malagù, Cesare
Giberti, Alessio
Morandi, Sara
Aldao, Celso Manuel
author_role author
author2 Giberti, Alessio
Morandi, Sara
Aldao, Celso Manuel
author2_role author
author
author
dc.subject.none.fl_str_mv NANOESTRUCTURE TIN OXIDE
METAL OXIDE SENSORS
VACANCIES
SURFACE STATES
TUNNELING
CONDUCTION BANDS
FOURIER TRANSFORM INFRARED SPECTROSCOPY
topic NANOESTRUCTURE TIN OXIDE
METAL OXIDE SENSORS
VACANCIES
SURFACE STATES
TUNNELING
CONDUCTION BANDS
FOURIER TRANSFORM INFRARED SPECTROSCOPY
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A model for conductance in n-type non-degenerate semiconductors is proposed and applied to polycrystalline SnO2 used as a gas sensor. Particular attention is devoted to the fundamental mechanism of Schottky barrier formation due to surface states in nanostructured grains. Electrical and absorption infra-red spectroscopic analysis constitutes strong evidence for oxygen diffusion into the tin oxide grains. The model is then extended to include oxygen in- and out-diffusion. Thus, it is possible to explain the “long-term” resistance drift in oxygen for fully depleted grained samples in terms of tunneling through the double barrier.
Fil: Malagù, Cesare. Universita Di Ferrara; Italia. Istituto di Acustica e Sensoristica “O. M. Corbino”; Italia
Fil: Giberti, Alessio. Universita Di Ferrara; Italia
Fil: Morandi, Sara. Universita di Torino; Italia
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. Facultad de Ingeniería; Argentina
description A model for conductance in n-type non-degenerate semiconductors is proposed and applied to polycrystalline SnO2 used as a gas sensor. Particular attention is devoted to the fundamental mechanism of Schottky barrier formation due to surface states in nanostructured grains. Electrical and absorption infra-red spectroscopic analysis constitutes strong evidence for oxygen diffusion into the tin oxide grains. The model is then extended to include oxygen in- and out-diffusion. Thus, it is possible to explain the “long-term” resistance drift in oxygen for fully depleted grained samples in terms of tunneling through the double barrier.
publishDate 2011
dc.date.none.fl_str_mv 2011-11-07
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/11336/10312
Malagù, Cesare; Giberti, Alessio; Morandi, Sara; Aldao, Celso Manuel; Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion; American Institute Of Physics; Journal Of Applied Physics; 110; 9; 7-11-2011; 519-527
0021-8979
url http://hdl.handle.net/11336/10312
identifier_str_mv Malagù, Cesare; Giberti, Alessio; Morandi, Sara; Aldao, Celso Manuel; Electrical and spectroscopic analysis in nanostructured SnO2: "long-term" resistance drift is due to in-diffusion; American Institute Of Physics; Journal Of Applied Physics; 110; 9; 7-11-2011; 519-527
0021-8979
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/10.1063/1.3658870
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.3658870
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 American Institute Of Physics
publisher.none.fl_str_mv American Institute Of Physics
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
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score 13.070432

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