Enhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
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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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 |
|
_version_ |
1808128374948757504 |