Heavy metal oxide glass-ceramics containing luminescent gallium-garnets single crystals for photonic applications

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUPR 9048-
Autor(es): dc.contributorUPR 5803-
Autor(es): dc.creatorSouza, A. E. [UNESP]-
Autor(es): dc.creatorAntonio, S. G. [UNESP]-
Autor(es): dc.creatorRibeiro, S. J.L. [UNESP]-
Autor(es): dc.creatorFranco, D. F. [UNESP]-
Autor(es): dc.creatorGaleani, G.-
Autor(es): dc.creatorCardinal, T.-
Autor(es): dc.creatorDussauze, M.-
Autor(es): dc.creatorNalin, M. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:45:21Z-
Data de disponibilização: dc.date.available2022-02-22T00:45:21Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-05-25-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jallcom.2021.158804-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205799-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205799-
Descrição: dc.descriptionGlass-ceramics containing rare earth gallium garnets were obtained using glass compositions as reactional medium. This work reports on the synthesis, and structural, morphological, and optical characterizations of Er3+ and Tm3+-doped Yb3Ga5O12 crystals prepared from controlled cooling of heavy metal oxide glass melts. Micrometric cubic crystals were obtained by controlling the cooling of a rare earth-supersaturated glassy composition melted at high temperature. Crystals with sizes ranging between 5 and 150 µm were formed into the glass matrix. A gallium garnet phase corresponding to space group Ia-3d was identified by X-ray diffraction and confirmed by Rietveld simulations. The morphology of crystals was studied by optical and scanning electron microscopies, while chemical elements were mapped by electron dispersive X-Ray spectroscopy. The glass phase was studied by XRD, thermal analysis and Raman spectroscopy. The optical properties of both glass and glass-ceramic materials were evaluated by UV–Vis and luminescence spectroscopies. Micro-luminescence measurements confirmed that rare earths were incorporated into the crystalline phase. Intense upconversion emissions of Er3+ (550 and 660 nm) and Tm3+ (800 nm) were observed when the glass-ceramics were pumped at 980 nm. These new glass-ceramics are excellent candidates for the development of photonic devices.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionInstitute of Chemistry – São Paulo State University – UNESP-
Descrição: dc.descriptionSão Carlos Institute of Physics University of São Paulo-
Descrição: dc.descriptionUniversity of Bordeaux CNRS ICMCB UPR 9048-
Descrição: dc.descriptionUniversity of Bordeaux CNRS ISM UPR 5803-
Descrição: dc.descriptionInstitute of Chemistry – São Paulo State University – UNESP-
Descrição: dc.descriptionFAPESP: 2013/07793-6-
Descrição: dc.descriptionFAPESP: 2019/01223-0-
Descrição: dc.descriptionCNPq: 502391/2014-6-
Idioma: dc.languageen-
Relação: dc.relationJournal of Alloys and Compounds-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGallium garnet-
Palavras-chave: dc.subjectGlass matrix composites-
Palavras-chave: dc.subjectGlass-ceramics-
Palavras-chave: dc.subjectLuminescence-
Palavras-chave: dc.subjectRare earths-
Título: dc.titleHeavy metal oxide glass-ceramics containing luminescent gallium-garnets single crystals for photonic applications-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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