BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies

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 s...

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Principais autores: Marques, Ana Paula de Azevedo, Motta, Fabiana Villela da, Cruz, Mariana A., Varela, José A., Longo, Elson, Rosa, Ieda Lúcia Viana
Formato: article
Idioma:English
Publicado em: Elsevier
Assuntos:
Molybdate
Complex polymerization method
Luminescence
Tb3+ doped
Endereço do item:https://repositorio.ufrn.br/handle/123456789/45598
http://dx.doi.org/10.1016/j.ssi.2011.08.013
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spelling ri-123456789-455982023-02-23T21:52:30Z BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies Marques, Ana Paula de Azevedo Motta, Fabiana Villela da Cruz, Mariana A. Varela, José A. Longo, Elson Rosa, Ieda Lúcia Viana Molybdate Complex polymerization method Luminescence Tb3+ doped 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 2022-01-12T15:29:13Z 2022-01-12T15:29:13Z 2011 article 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 https://repositorio.ufrn.br/handle/123456789/45598 http://dx.doi.org/10.1016/j.ssi.2011.08.013 en Elsevier
institution Repositório Institucional
collection RI - UFRN
language English
topic Molybdate
Complex polymerization method
Luminescence
Tb3+ doped
spellingShingle Molybdate
Complex polymerization method
Luminescence
Tb3+ doped
Marques, Ana Paula de Azevedo
Motta, Fabiana Villela da
Cruz, Mariana A.
Varela, José A.
Longo, Elson
Rosa, Ieda Lúcia Viana
BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies
description 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
format article
author Marques, Ana Paula de Azevedo
Motta, Fabiana Villela da
Cruz, Mariana A.
Varela, José A.
Longo, Elson
Rosa, Ieda Lúcia Viana
author_facet Marques, Ana Paula de Azevedo
Motta, Fabiana Villela da
Cruz, Mariana A.
Varela, José A.
Longo, Elson
Rosa, Ieda Lúcia Viana
author_sort Marques, Ana Paula de Azevedo
title BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies
title_short BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies
title_full BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies
title_fullStr BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies
title_full_unstemmed BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies
title_sort bamoo4:tb3+ phosphor properties: synthesis, characterization and photophysical studies
publisher Elsevier
publishDate 2022
url https://repositorio.ufrn.br/handle/123456789/45598
http://dx.doi.org/10.1016/j.ssi.2011.08.013
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AT mottafabianavillelada bamoo4tb3phosphorpropertiessynthesischaracterizationandphotophysicalstudies
AT cruzmarianaa bamoo4tb3phosphorpropertiessynthesischaracterizationandphotophysicalstudies
AT varelajosea bamoo4tb3phosphorpropertiessynthesischaracterizationandphotophysicalstudies
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AT rosaiedaluciaviana bamoo4tb3phosphorpropertiessynthesischaracterizationandphotophysicalstudies
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