Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution

Detalhes bibliográficos
Autor(a) principal: Fonseca, Lucas P. [UNESP]
Data de Publicação: 2021
Outros Autores: Pedrini, Luiz F. K. [UNESP], Lima, João V. M. [UNESP], Escaliante, Lucas C. [UNESP], Santos, Stevan B. O. [UNESP], Scalvi, Luis V. A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s00339-021-04647-x
http://hdl.handle.net/11449/206450
Resumo: The use of the Triton X-100 nonionic surfactant in the precursor solution has revealed a fundamental increase on the surface area, which is very relevant for applications as gas sensors and in photocatalysis. Besides, this increases increase aids in adhesion of the SnO2 film onto the substrate. Surfactant presence leads to an increase in the roughness (rms) from 57.6 to 275 nm. The influence can also be observed in the XRD profiles, with a higher degree of crystallinity for deposited films from solutions with Triton. The surfactant inclusion decreases the defect density in the film even though it increases the electron scattering, leading to rather resistive films that are thermally excited only above room temperature. The activation energy for the defect ionization is rather high, 800 meV, but the thermal excitation takes place at a lower temperature range, compared to films prepared without Triton in the solution processing. The performance on photocatalysis is improved for films prepared with Triton X-100, with most of methylene blue dye degraded in the first 90 min when interacting with the sample. Combination of transparency and electrical properties of SnO2 with improved surface properties of films prepared with Triton X-100 leads to potential application in photoelectrocatalysis.
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spelling Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solutionElectrical and optical propertiesSolgelSurfactantTin dioxideThe use of the Triton X-100 nonionic surfactant in the precursor solution has revealed a fundamental increase on the surface area, which is very relevant for applications as gas sensors and in photocatalysis. Besides, this increases increase aids in adhesion of the SnO2 film onto the substrate. Surfactant presence leads to an increase in the roughness (rms) from 57.6 to 275 nm. The influence can also be observed in the XRD profiles, with a higher degree of crystallinity for deposited films from solutions with Triton. The surfactant inclusion decreases the defect density in the film even though it increases the electron scattering, leading to rather resistive films that are thermally excited only above room temperature. The activation energy for the defect ionization is rather high, 800 meV, but the thermal excitation takes place at a lower temperature range, compared to films prepared without Triton in the solution processing. The performance on photocatalysis is improved for films prepared with Triton X-100, with most of methylene blue dye degraded in the first 90 min when interacting with the sample. Combination of transparency and electrical properties of SnO2 with improved surface properties of films prepared with Triton X-100 leads to potential application in photoelectrocatalysis.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Physics School of Sciences São Paulo State University (Unesp)POSMAT - Post-Graduate Program in Materials Science and Technology School of Sciences São Paulo State University (Unesp)Department of Physics School of Sciences São Paulo State University (Unesp)POSMAT - Post-Graduate Program in Materials Science and Technology School of Sciences São Paulo State University (Unesp)FAPESP: 2018/25241-4FAPESP: 2018/26039-4FAPESP: 2019/00683-7Universidade Estadual Paulista (Unesp)Fonseca, Lucas P. [UNESP]Pedrini, Luiz F. K. [UNESP]Lima, João V. M. [UNESP]Escaliante, Lucas C. [UNESP]Santos, Stevan B. O. [UNESP]Scalvi, Luis V. A. [UNESP]2021-06-25T10:32:15Z2021-06-25T10:32:15Z2021-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s00339-021-04647-xApplied Physics A: Materials Science and Processing, v. 127, n. 7, 2021.1432-06300947-8396http://hdl.handle.net/11449/20645010.1007/s00339-021-04647-x2-s2.0-85107452423Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Physics A: Materials Science and Processinginfo:eu-repo/semantics/openAccess2021-10-23T04:53:31Zoai:repositorio.unesp.br:11449/206450Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:32:05.210194Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution
title Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution
spellingShingle Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution
Fonseca, Lucas P. [UNESP]
Electrical and optical properties
Solgel
Surfactant
Tin dioxide
title_short Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution
title_full Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution
title_fullStr Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution
title_full_unstemmed Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution
title_sort Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution
author Fonseca, Lucas P. [UNESP]
author_facet Fonseca, Lucas P. [UNESP]
Pedrini, Luiz F. K. [UNESP]
Lima, João V. M. [UNESP]
Escaliante, Lucas C. [UNESP]
Santos, Stevan B. O. [UNESP]
Scalvi, Luis V. A. [UNESP]
author_role author
author2 Pedrini, Luiz F. K. [UNESP]
Lima, João V. M. [UNESP]
Escaliante, Lucas C. [UNESP]
Santos, Stevan B. O. [UNESP]
Scalvi, Luis V. A. [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Fonseca, Lucas P. [UNESP]
Pedrini, Luiz F. K. [UNESP]
Lima, João V. M. [UNESP]
Escaliante, Lucas C. [UNESP]
Santos, Stevan B. O. [UNESP]
Scalvi, Luis V. A. [UNESP]
dc.subject.por.fl_str_mv Electrical and optical properties
Solgel
Surfactant
Tin dioxide
topic Electrical and optical properties
Solgel
Surfactant
Tin dioxide
description The use of the Triton X-100 nonionic surfactant in the precursor solution has revealed a fundamental increase on the surface area, which is very relevant for applications as gas sensors and in photocatalysis. Besides, this increases increase aids in adhesion of the SnO2 film onto the substrate. Surfactant presence leads to an increase in the roughness (rms) from 57.6 to 275 nm. The influence can also be observed in the XRD profiles, with a higher degree of crystallinity for deposited films from solutions with Triton. The surfactant inclusion decreases the defect density in the film even though it increases the electron scattering, leading to rather resistive films that are thermally excited only above room temperature. The activation energy for the defect ionization is rather high, 800 meV, but the thermal excitation takes place at a lower temperature range, compared to films prepared without Triton in the solution processing. The performance on photocatalysis is improved for films prepared with Triton X-100, with most of methylene blue dye degraded in the first 90 min when interacting with the sample. Combination of transparency and electrical properties of SnO2 with improved surface properties of films prepared with Triton X-100 leads to potential application in photoelectrocatalysis.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-25T10:32:15Z
2021-06-25T10:32:15Z
2021-07-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s00339-021-04647-x
Applied Physics A: Materials Science and Processing, v. 127, n. 7, 2021.
1432-0630
0947-8396
http://hdl.handle.net/11449/206450
10.1007/s00339-021-04647-x
2-s2.0-85107452423
url http://dx.doi.org/10.1007/s00339-021-04647-x
http://hdl.handle.net/11449/206450
identifier_str_mv Applied Physics A: Materials Science and Processing, v. 127, n. 7, 2021.
1432-0630
0947-8396
10.1007/s00339-021-04647-x
2-s2.0-85107452423
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Applied Physics A: Materials Science and Processing
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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