BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies
| dc.contributor.author | Marques, Ana Paula de Azevedo | |
| dc.contributor.author | Motta, Fabiana Villela da | |
| dc.contributor.author | Cruz, Mariana A. | |
| dc.contributor.author | Varela, José A. | |
| dc.contributor.author | Longo, Elson | |
| dc.contributor.author | Rosa, Ieda Lúcia Viana | |
| dc.date.accessioned | 2022-01-12T15:29:13Z | |
| dc.date.available | 2022-01-12T15:29:13Z | |
| dc.date.issued | 2011 | |
| dc.description.resumo | BaMoO4:Tb3+ powders were synthesized by the complex polymerization (CP) method and characterized by powder X-ray diffraction patterns (XRD), Fourier transform infra-Red (FTIR) and Raman spectroscopy as well as photoluminescence (PL) measurements. The results confirmed the presence of a crystalline scheelite-type phase in BaMoO4:Tb3+crystalline powers. Excitation spectra, λem. = 543 nm revealed the predominance of a broad band of charge transfer that was ascribed to the absorption of [MoO4]2- ionic tetragonal clusters. Emission spectra of BaMoO4:Tb3+ samples (λex. = 294 nm) have a group of sharp emission bands (456–487 nm; 543–546 nm; 581–589 nm and 617–620 nm) assigned to the 5D4 → 7 F6, 5D4 → 7 F5, 5D4 → 7 F4 and 5D4 → 7 F3 transitions of Tb3+ ions, respectively. The samples show the exponential decay curves of 5D4 → 7 F5 transition, λexc. = 294 nm and λem. = 543 nm, where the greater decay time was evaluated as 1.07 ms for the BaMoO4:Tb3+ annealed at 900 °C | pt_BR |
| dc.identifier.citation | MARQUES, Ana Paula A.; MOTTA, Fabiana V.; CRUZ, Mariana A.; VARELA, José A.; LONGO, Elson; ROSA, Ieda L.V.. BaMoO4: tb3+ phosphor properties. Solid State Ionics, [S.L.], v. 202, n. 1, p. 54-59, nov. 2011. Elsevier BV. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0167273811004279?via%3Dihub. Acesso em: 10 Set. 2021. http://dx.doi.org/10.1016/j.ssi.2011.08.013 | pt_BR |
| dc.identifier.doi | http://dx.doi.org/10.1016/j.ssi.2011.08.013 | |
| dc.identifier.uri | https://repositorio.ufrn.br/handle/123456789/45598 | |
| dc.language | en | pt_BR |
| dc.publisher | Elsevier | pt_BR |
| dc.subject | Molybdate | pt_BR |
| dc.subject | Complex polymerization method | pt_BR |
| dc.subject | Luminescence | pt_BR |
| dc.subject | Tb3+ doped | pt_BR |
| dc.title | BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies | pt_BR |
| dc.type | article | pt_BR |
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