Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-gel

Detalhes bibliográficos
Autor(a) principal: Geraldo,Viviany
Data de Publicação: 2003
Outros Autores: Scalvi,Luis Vicente de Andrade, Morais,Evandro Augusto de, Santilli,Celso Valentim, Pulcinelli,Sandra Helena
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400004
Resumo: Transparent electrically conducting antimony-doped SnO2 thin films have been prepared by sol-gel dip-coating process from colloidal aqueous suspension. The effect of doping content on the structural, optical and electrical properties is analyzed. Results from infrared optical transmission and reflection have shown that the higher the Sb concentration the lower the transmission intensity and the higher the reflection signal. Absorption intensity increases as well. Results of X-ray reflectometry and electron microscopy have shown that the density of films fired at 400 °C after each dip is higher than that of multi-dipped films prepared with a single annealing. Both the electrical characteristics in the dark and the increase in conductivity as function of illumination through different filters, at 190 K, evidence that the transport properties of these films are dominated by the presence of defects, including the trapping at grain boundary due to excess of oxygen.
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spelling Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-geltin dioxidenanostructuressol-geloptical propertiesTransparent electrically conducting antimony-doped SnO2 thin films have been prepared by sol-gel dip-coating process from colloidal aqueous suspension. The effect of doping content on the structural, optical and electrical properties is analyzed. Results from infrared optical transmission and reflection have shown that the higher the Sb concentration the lower the transmission intensity and the higher the reflection signal. Absorption intensity increases as well. Results of X-ray reflectometry and electron microscopy have shown that the density of films fired at 400 °C after each dip is higher than that of multi-dipped films prepared with a single annealing. Both the electrical characteristics in the dark and the increase in conductivity as function of illumination through different filters, at 190 K, evidence that the transport properties of these films are dominated by the presence of defects, including the trapping at grain boundary due to excess of oxygen.ABM, ABC, ABPol2003-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400004Materials Research v.6 n.4 2003reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392003000400004info:eu-repo/semantics/openAccessGeraldo,VivianyScalvi,Luis Vicente de AndradeMorais,Evandro Augusto deSantilli,Celso ValentimPulcinelli,Sandra Helenaeng2004-01-19T00:00:00Zoai:scielo:S1516-14392003000400004Revistahttp://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 Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-gel
title Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-gel
spellingShingle Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-gel
Geraldo,Viviany
tin dioxide
nanostructures
sol-gel
optical properties
title_short Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-gel
title_full Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-gel
title_fullStr Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-gel
title_full_unstemmed Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-gel
title_sort Sb doping effects and oxygen adsorption in SnO2 thin films deposited via sol-gel
author Geraldo,Viviany
author_facet Geraldo,Viviany
Scalvi,Luis Vicente de Andrade
Morais,Evandro Augusto de
Santilli,Celso Valentim
Pulcinelli,Sandra Helena
author_role author
author2 Scalvi,Luis Vicente de Andrade
Morais,Evandro Augusto de
Santilli,Celso Valentim
Pulcinelli,Sandra Helena
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Geraldo,Viviany
Scalvi,Luis Vicente de Andrade
Morais,Evandro Augusto de
Santilli,Celso Valentim
Pulcinelli,Sandra Helena
dc.subject.por.fl_str_mv tin dioxide
nanostructures
sol-gel
optical properties
topic tin dioxide
nanostructures
sol-gel
optical properties
description Transparent electrically conducting antimony-doped SnO2 thin films have been prepared by sol-gel dip-coating process from colloidal aqueous suspension. The effect of doping content on the structural, optical and electrical properties is analyzed. Results from infrared optical transmission and reflection have shown that the higher the Sb concentration the lower the transmission intensity and the higher the reflection signal. Absorption intensity increases as well. Results of X-ray reflectometry and electron microscopy have shown that the density of films fired at 400 °C after each dip is higher than that of multi-dipped films prepared with a single annealing. Both the electrical characteristics in the dark and the increase in conductivity as function of illumination through different filters, at 190 K, evidence that the transport properties of these films are dominated by the presence of defects, including the trapping at grain boundary due to excess of oxygen.
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=S1516-14392003000400004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392003000400004
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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