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

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorFonseca, Lucas P. [UNESP]-
Autor(es): dc.creatorPedrini, Luiz F. K. [UNESP]-
Autor(es): dc.creatorLima, João V. M. [UNESP]-
Autor(es): dc.creatorEscaliante, Lucas C. [UNESP]-
Autor(es): dc.creatorSantos, Stevan B. O. [UNESP]-
Autor(es): dc.creatorScalvi, Luis V. A. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:47:07Z-
Data de disponibilização: dc.date.available2022-02-22T00:47:07Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00339-021-04647-x-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/206450-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/206450-
Descrição: dc.descriptionThe 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.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartment of Physics School of Sciences São Paulo State University (Unesp)-
Descrição: dc.descriptionPOSMAT - Post-Graduate Program in Materials Science and Technology School of Sciences São Paulo State University (Unesp)-
Descrição: dc.descriptionDepartment of Physics School of Sciences São Paulo State University (Unesp)-
Descrição: dc.descriptionPOSMAT - Post-Graduate Program in Materials Science and Technology School of Sciences São Paulo State University (Unesp)-
Descrição: dc.descriptionFAPESP: 2018/25241-4-
Descrição: dc.descriptionFAPESP: 2018/26039-4-
Descrição: dc.descriptionFAPESP: 2019/00683-7-
Idioma: dc.languageen-
Relação: dc.relationApplied Physics A: Materials Science and Processing-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectElectrical and optical properties-
Palavras-chave: dc.subjectSolgel-
Palavras-chave: dc.subjectSurfactant-
Palavras-chave: dc.subjectTin dioxide-
Título: dc.titleEnhancement of surface properties of solgel tin dioxide thin films with addition of surfactant in the precursor solution-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.