Suppression of vapor-liquid-solid (VLS) mechanism in the growth of α-Sb2O4 nanobelts by a vapor-deposition approach

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorINP Greifswald-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorNational Institute of Space Research (INPE)-
Autor(es): dc.creatorGonçalves, Rosana A. [UNESP]-
Autor(es): dc.creatorda Silva Barros, Herick H. [UNESP]-
Autor(es): dc.creatorAraujo, Luana S. [UNESP]-
Autor(es): dc.creatorAntunes, Erica F. [UNESP]-
Autor(es): dc.creatorQuade, Antje-
Autor(es): dc.creatorTeodoro, Marcio D.-
Autor(es): dc.creatorBaldan, Maurício R.-
Autor(es): dc.creatorBerengue, Olivia M. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:51:36Z-
Data de disponibilização: dc.date.available2022-02-22T00:51:36Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.mssp.2021.106006-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/207857-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/207857-
Descrição: dc.descriptionIn this work we report on the synthesis of novel α-Sb2O4 nanostructures synthesized by a gold catalyzed vapor deposition method in which metallic Sb is used as a precursor. Belts, rods and zigzag morphologies were obtained and characterized by a group of techniques which also provided data on crystalline structure and compositional aspects. Structural characterizations revealed that although the addition of gold nanoparticles plays an important role in the final growth of the nanostructures, no evidence of this element was found in the as-grown samples. In order to clarify the causes of the suppression of the VLS mechanism in these conditions, we carried out experiments in which the syntheses were interrupted in a controlled manner. Our findings revealed that at the early stages of the growth VLS mechanism is suppressed when high levels of Sb supersaturation are reached. A thick crystalline oxide layer rapidly grows at the liquid-gas interface providing preferential sites for the VS growth to take place. Low temperature photoluminescence measurements revealed a strong emission in the visible portion of electromagnetic spectra which can be associated to the presence of oxygen vacancies in these nanostructures.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartment of Physics São Paulo State University (UNESP) School of Engineering, CEP 12.516-410, Guaratinguetá-
Descrição: dc.descriptionINP Greifswald, Felix-Hausdorff-Str.2-
Descrição: dc.descriptionDepartamento de Física Universidade Federal de São Carlos, São Carlos – SP-
Descrição: dc.descriptionPDM3A - Department of Space Engineering and Technology National Institute of Space Research (INPE), São José dos Campos-
Descrição: dc.descriptionDepartment of Physics São Paulo State University (UNESP) School of Engineering, CEP 12.516-410, Guaratinguetá-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionFAPESP: 2015/21816-4-
Idioma: dc.languageen-
Relação: dc.relationMaterials Science in Semiconductor Processing-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectNanorods-
Palavras-chave: dc.subjectSb2O4-
Palavras-chave: dc.subjectVLS supression-
Palavras-chave: dc.subjectVS mechanism-
Palavras-chave: dc.subjectZigzag nanobelts-
Título: dc.titleSuppression of vapor-liquid-solid (VLS) mechanism in the growth of α-Sb2O4 nanobelts by a vapor-deposition approach-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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