Blue or red photoluminescence emission in α-Bi2O3 needles: Effect of synthesis method

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dc.contributor.authorSchmidt, Samara
dc.contributor.authorKubaski, Evaldo T.
dc.contributor.authorLi, Máximo Siu
dc.contributor.authorBezzon, Vinicius D.N. [UNESP]
dc.contributor.authorSequinel, Thiago
dc.contributor.authorTebcherani, Sergio M.
dc.contributor.institutionFederal University of Technology – Paraná (UTFPR)
dc.contributor.institutionUniversidade Estadual de Ponta Grossa (UEPG)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFederal University of Grande Dourados (UFGD)
dc.date.accessioned2018-12-11T17:22:33Z
dc.date.available2018-12-11T17:22:33Z
dc.date.issued2018-01-01
dc.description.abstractMonoclinic bismuth oxide (α-Bi2O3) has attractive optical properties and, therefore, its photoluminescence (PL) behavior has been increasingly explored. Besides this fact, the influence of synthesis methods on PL properties of α-Bi2O3 still requires research. This paper describes the influence of precipitation (PPT) and microwave-assisted hydrothermal (MAH) methods on PL properties of acicular α-Bi2O3 microcrystals. The synthesis method promoted structural modifications on α-Bi2O3, in particular PPT increased the density of oxygen vacancies significantly. As a result, the PL properties of samples were different depending on the method of synthesis. PPT samples presented their maximum PL emission at 1.91 eV (red), while MAH samples had their maximum at 2.61 eV (blue). These results indicate the possibility of controlling PL properties of α-Bi2O3 by simply choosing the adequate synthesis method.en
dc.description.affiliationDepartment of Production Engineering Federal University of Technology – Paraná (UTFPR), Av. Monteiro Lobato km 04
dc.description.affiliationDepartment of Materials Engineering State University of Ponta Grossa (UEPG), Av. General Carlos Cavalcanti 4748
dc.description.affiliationSão Carlos Institute of Physics (IFSC) University of São Paulo, Av. Trabalhador são-carlense 400
dc.description.affiliationDepartment of Physical Chemistry UNESP – Institute of Chemistry, Rua Professor Francisco Degni 55
dc.description.affiliationFaculty of Exact Sciences and Technology (FACET) Federal University of Grande Dourados (UFGD), Rodovia Dourados/Itahum Km12
dc.description.affiliationDepartment of Chemistry State University of Ponta Grossa (UEPG), Av. General Carlos Cavalcanti 4748
dc.description.affiliationUnespDepartment of Physical Chemistry UNESP – Institute of Chemistry, Rua Professor Francisco Degni 55
dc.identifierhttp://dx.doi.org/10.1002/bio.3547
dc.identifier.citationLuminescence.
dc.identifier.doi10.1002/bio.3547
dc.identifier.issn1522-7243
dc.identifier.issn1522-7235
dc.identifier.scopus2-s2.0-85052943478
dc.identifier.urihttp://hdl.handle.net/11449/176802
dc.language.isoeng
dc.relation.ispartofLuminescence
dc.relation.ispartofsjr0,396
dc.relation.ispartofsjr0,396
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectbismuth (III) oxide
dc.subjectmicrowave-assisted hydrothermal synthesis
dc.subjectphotoluminescence
dc.subjectprecipitation synthesis
dc.titleBlue or red photoluminescence emission in α-Bi2O3 needles: Effect of synthesis methoden
dc.typeArtigo
unesp.author.orcid0000-0002-5238-8305[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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