Tb3+/Pr3+ co-doped ZnMoO4 phosphor with tunable photoluminescence and energy transfer processes

Paskocimas, Carlos Alberto; Delmonte, Maurício Roberto Bomio; Lovisa, Laura Ximena; Fernandes, Y.L.R.L.; Garcia, Laurênia Martins Pereira; Barros, Bráulio S.; Silva, Elson Longo da; Motta, Fabiana Villela da

Tb3+/Pr3+ co-doped ZnMoO4 phosphor with tunable photoluminescence and energy transfer processes

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dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Delmonte, Maurício Roberto Bomio
dc.contributor.author	Lovisa, Laura Ximena
dc.contributor.author	Fernandes, Y.L.R.L.
dc.contributor.author	Garcia, Laurênia Martins Pereira
dc.contributor.author	Barros, Bráulio S.
dc.contributor.author	Silva, Elson Longo da
dc.contributor.author	Motta, Fabiana Villela da
dc.date.accessioned	2021-04-12T17:32:45Z
dc.date.available	2021-04-12T17:32:45Z
dc.date.issued	2019-10
dc.description.resumo	ZnMoO4:Tb3+, Pr3+ particles in different Tb:Pr ratios (2:0, 1.5:0.5, 1:1, 0.5:1.5 and 0:2) were synthesized by the sonochemical method. These materials were characterized structurally, morphologically and optically by X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Ultraviolet–visible absorption spectroscopy and Photoluminescence (PL). From studying the photoluminescent properties, the PL spectra presented 5 D4 → 7 Fj (j = 6, 5, 4 and 3) transitions bands of Tb3+, along with the transitions 3 P0 → 3 H5, 1 D2 → 3 H4, 3 P0 → 3 H6 and 3 P0 → 3 F3 of Pr3+. Time resolved photoluminescence was investigated and an energy transfer (n) mechanism between the matrix and the Tb3+ and Pr3+ ions is simultaneously proposed for better understanding the process efficiency. Parallel to this perspective, the photocatalytic behavior of ZnMoO4:Tb3+, Pr3+ was evaluated. The degradation of methylene blue dye was favored by the effect of increasing the Pr3+concentration. This work deals with the development of inorganic phosphor materials capable of converting UV radiation into light-emitting diode, which can be suitably combined to produce white light	pt_BR
dc.identifier.citation	LOVISA, L.X.; FERNANDES, Y.L.R.L.; GARCIA, L.M.P.; BARROS, B.s.; LONGO, E.; PASKOCIMAS, C.A.; BOMIO, M.R.D.; MOTTA, F.V.. Tb3+/Pr3+ co-doped ZnMoO4 phosphor with tunable photoluminescence and energy transfer processes. Optical Materials, [S.L.], v. 96, p. 109332-109332, out. 2019. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0925346719305427?via%3Dihub. Acesso em: 11 dez. 2020. http://dx.doi.org/10.1016/j.optmat.2019.109332.	pt_BR
dc.identifier.doi	10.1016/j.optmat.2019.109332
dc.identifier.issn	0925-3467
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32159
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Tb3+	pt_BR
dc.subject	Pr3+	pt_BR
dc.subject	Photoluminescence	pt_BR
dc.subject	Photocatalysis	pt_BR
dc.subject	Energy transfer (ET)	pt_BR
dc.title	Tb3+/Pr3+ co-doped ZnMoO4 phosphor with tunable photoluminescence and energy transfer processes	pt_BR
dc.type	article	pt_BR