Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesor

Detalhes bibliográficos
Autor(a) principal: Ponce,Miguel Adolfo
Data de Publicação: 2003
Outros Autores: Castro,Miriam Susana, Moncada,Osvaldo Julio, Echeverría,Maria Dolores, Aldao,Celso Manuel
Tipo de documento: Artigo
Idioma: spa
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400015
Resumo: Gas sensors based in semiconductor oxides show a change in the resistance when they are exposed to certain gaseous atmospheres. In this paper, the influence on the sensor electrical resistance with the film thickness in vacuum and air are studied. The conduction process is analyzed considering the existence of Schottky potential barriers at the grain boundaries. These barriers are affected by the intergranular gas diffusion. This process increases the barrier height and width, altering the electrical resistance. Also, the influence of the diffusion process on the stabilization time is analized.
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spelling Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesorSnO2conduction mechanismsairGas sensors based in semiconductor oxides show a change in the resistance when they are exposed to certain gaseous atmospheres. In this paper, the influence on the sensor electrical resistance with the film thickness in vacuum and air are studied. The conduction process is analyzed considering the existence of Schottky potential barriers at the grain boundaries. These barriers are affected by the intergranular gas diffusion. This process increases the barrier height and width, altering the electrical resistance. Also, the influence of the diffusion process on the stabilization time is analized.ABM, ABC, ABPol2003-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400015Materials Research v.6 n.4 2003reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392003000400015info:eu-repo/semantics/openAccessPonce,Miguel AdolfoCastro,Miriam SusanaMoncada,Osvaldo JulioEcheverría,Maria DoloresAldao,Celso Manuelspa2004-01-19T00:00:00Zoai:scielo:S1516-14392003000400015Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2004-01-19T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesor
title Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesor
spellingShingle Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesor
Ponce,Miguel Adolfo
SnO2
conduction mechanisms
air
title_short Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesor
title_full Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesor
title_fullStr Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesor
title_full_unstemmed Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesor
title_sort Efectos de la exposición a vacío y aire de películas de SnO2 con distinto espesor
author Ponce,Miguel Adolfo
author_facet Ponce,Miguel Adolfo
Castro,Miriam Susana
Moncada,Osvaldo Julio
Echeverría,Maria Dolores
Aldao,Celso Manuel
author_role author
author2 Castro,Miriam Susana
Moncada,Osvaldo Julio
Echeverría,Maria Dolores
Aldao,Celso Manuel
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ponce,Miguel Adolfo
Castro,Miriam Susana
Moncada,Osvaldo Julio
Echeverría,Maria Dolores
Aldao,Celso Manuel
dc.subject.por.fl_str_mv SnO2
conduction mechanisms
air
topic SnO2
conduction mechanisms
air
description Gas sensors based in semiconductor oxides show a change in the resistance when they are exposed to certain gaseous atmospheres. In this paper, the influence on the sensor electrical resistance with the film thickness in vacuum and air are studied. The conduction process is analyzed considering the existence of Schottky potential barriers at the grain boundaries. These barriers are affected by the intergranular gas diffusion. This process increases the barrier height and width, altering the electrical resistance. Also, the influence of the diffusion process on the stabilization time is analized.
publishDate 2003
dc.date.none.fl_str_mv 2003-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400015
dc.language.iso.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv 10.1590/S1516-14392003000400015
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.6 n.4 2003
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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