Near-infrared quantum cutting luminescence in Pr3+/Yb3+ doped lead bismuth borate glass

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Juiz de Fora-
Autor(es): dc.contributorKG Reddy College of Engineering and Technology-
Autor(es): dc.contributorUniversité Laval-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorSeshadri, Meruva-
Autor(es): dc.creatorSantos, Ilza T. C.-
Autor(es): dc.creatorBell, Maria Jose V.-
Autor(es): dc.creatorLapointe, Jerome-
Autor(es): dc.creatorMessaddeq, Younes-
Autor(es): dc.creatorAnjos, Virgilio-
Data de aceite: dc.date.accessioned2025-08-21T20:36:15Z-
Data de disponibilização: dc.date.available2025-08-21T20:36:15Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1038/s41598-022-23808-3-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249361-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249361-
Descrição: dc.descriptionIn this paper, thermally stable lead-bismuth-borate glasses were doped with 0.5 mol% of Pr3+ ions at several concentration levels of Yb3+ ions. Structural characterizations were performed via Raman, differential scanning calorimetry, optical absorption and fluorescence spectra. The Judd–Ofelt intensity parameter, Ω 2, of Pr3+ doped glass was comparatively higher than those from reported ones, which reflects the increase of co-valency and asymmetry of chemical bonds in the local environment of Pr3+. Near-infrared emission in 900–2200 nm wavelength range was recorded through 443 nm blue laser pumping. Visible to near-IR quantum cutting and concentration quenching mechanisms were discussed to understand the luminescent behaviour. Intense IR emission (∼1.0μm) features generated by absorbing one visible photon leads to quantum efficiencies close to 128% in Pr3+/Yb3+ co-doped samples which may improve the solar spectrum absorption and accordingly, increase the efficiency of c-Si solar cells. Emission cross-section, lifetime, figure of merit and gain bandwidth corresponding to Pr3+: 3F2→ 3H4 (∼2.0μm) were comparatively reported suggesting that the glass with molar composition 0.5Pr3+/0.1Yb3+ might be a potential candidate for ∼2.0μm laser operation with low pump threshold.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)-
Descrição: dc.descriptionGrupo de Engenharia e Espectroscopia de Materiais Departamento de Física-ICE Universidade Federal de Juiz de Fora, MG-
Descrição: dc.descriptionDepartment of Physics KG Reddy College of Engineering and Technology, TS-
Descrição: dc.descriptionCentre d’Optique Photonique et Laser 2375 Rue de la Terrasse Université Laval-
Descrição: dc.descriptionChemistry Institute São Paulo State University – UNESP, Rua Francisco Degni 55, SP-
Descrição: dc.descriptionChemistry Institute São Paulo State University – UNESP, Rua Francisco Degni 55, SP-
Idioma: dc.languageen-
Relação: dc.relationScientific Reports-
???dc.source???: dc.sourceScopus-
Título: dc.titleNear-infrared quantum cutting luminescence in Pr3+/Yb3+ doped lead bismuth borate glass-
Tipo de arquivo: dc.typelivro digital-
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