Show simple item record

dc.contributor.authorRaschetti, Marina
dc.contributor.authorByzynski, Gabriela [UNESP]
dc.contributor.authorRibeiro, Caue
dc.contributor.authorLongo, Elson
dc.date.accessioned2018-12-11T16:47:48Z
dc.date.available2018-12-11T16:47:48Z
dc.date.issued2017-10-15
dc.identifierhttp://dx.doi.org/10.1016/j.ceramint.2017.06.003
dc.identifier.citationCeramics International, v. 43, n. 15, p. 11722-11732, 2017.
dc.identifier.issn0272-8842
dc.identifier.urihttp://hdl.handle.net/11449/169836
dc.description.abstractOptical traditional techniques, such as diffusive reflectance spectroscopy, are used to confirm absorption behavior modification after anion doping process. However, the doping process in some materials as a SrTiO3 semiconductor was not clearly proved in different anions doping cases through traditional techniques. In this case, supporting technique as electrochemical measurements could prove a great help in elucidating the doping process modifications in the semiconductor material. In this paper, the electrochemical characterization was applied to analyze changes in energy bands produced by N-doping in SrTiO3@SrCO3 composite thin film electrodes. SrTiO3@SrCO3 and N-doped SrTiO3@SrCO3 nanoparticles were first characterized by X-ray diffraction to confirm a perovskite crystalline structure in both materials, whereas diffusive reflectance spectroscopy was used to demonstrate that no modification in the absorption spectrum is evident after doping. The thin films were observed by FESEM/SEM, and its deposition parameters were electrochemically evaluated. The electrochemical profiles of SrTiO3@SrCO3 and N doped SrTiO3@SrCO3 thin film electrodes were compared in dark and under UV-C light to determine the photocurrent. These measurements presented distinct results for the undoped and the doped materials, such as modification in photocurrent under UV-C illumination. SrTiO3@SrCO3 composite electrodes show important characteristics which could be classified as a potential candidate in varistor uses, especially in the low-voltage protection system. The presented results confirm that electrochemical methods are useful to analyze the synthesis efficiency to produce N-doped structures.en
dc.format.extent11722-11732
dc.language.isoeng
dc.relation.ispartofCeramics International
dc.sourceScopus
dc.subjectCharacterization
dc.subjectComposite electrodes
dc.subjectDoping process
dc.subjectPhotocatalyst
dc.subjectPhotoelectrodes
dc.subjectSrTiO3@SrCO3
dc.titleN-doping SrTiO3@SrCO3 heterostructure electrode: Synthesis, electrochemical characterization, and varistor applicationen
dc.typeArtigo
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.description.affiliationMaterials Engineering Department Federal University of São Carlos São Carlos SP, Rodovia Washington Luís, Km 235, s/n - Jardim Guanabara
dc.description.affiliationSão Paulo State University (Unesp) Institute of Chemistry Araraquara, Rua Prof. Francisco Degni, 55, Quitandinha
dc.description.affiliationEmbrapa Instrumentação São Carlos SP, Rua XV de Novembro, 1452
dc.description.affiliationChemistry Department Federal University of São Carlos São Carlos SP, Rodovia Washington Luís, Km 235, s/n - Jardim Guanabara
dc.description.affiliationUnespSão Paulo State University (Unesp) Institute of Chemistry Araraquara, Rua Prof. Francisco Degni, 55, Quitandinha
dc.identifier.doi10.1016/j.ceramint.2017.06.003
dc.rights.accessRightsAcesso aberto
dc.identifier.scopus2-s2.0-85020679630
dc.identifier.file2-s2.0-85020679630.pdf
dc.relation.ispartofsjr0,784
Localize o texto completo

Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record