2022
DOI: 10.1039/d2dt02752f
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Red and near-infrared emitting phosphors based on Eu3+- or Nd3+-doped lanthanum niobates prepared by the sol–gel route

Abstract: We have evaluated the structural and luminescent properties of Eu3+- or Nd3+-doped lanthanum niobate systems synthesized via a sol–gel route and containing different dopant contents. XRD analysis revealed that the...

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Cited by 4 publications
(5 citation statements)
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References 110 publications
(175 reference statements)
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“…The average fluorescence lifetime of LaNbO 4 decreased from 5.51 µs to 4.93 µs, and that of EuNbO 4 decreased from 327 µs to 60.14 µs, indicating that the radiation recombination rate of STEs was improved [43,44]. In contrast, the increase in average fluorescence lifetime of GdNbO 4 and LuNbO 4 should be disturbed by the millisecond lifetime of RE 3 NbO 7 (RE = Gd, Lu) [32,45],…”
Section: Luminescence Characterizationmentioning
confidence: 96%
“…The average fluorescence lifetime of LaNbO 4 decreased from 5.51 µs to 4.93 µs, and that of EuNbO 4 decreased from 327 µs to 60.14 µs, indicating that the radiation recombination rate of STEs was improved [43,44]. In contrast, the increase in average fluorescence lifetime of GdNbO 4 and LuNbO 4 should be disturbed by the millisecond lifetime of RE 3 NbO 7 (RE = Gd, Lu) [32,45],…”
Section: Luminescence Characterizationmentioning
confidence: 96%
“…A região de 3600 a 2800 cm -1 é atribuída aos modos vibracionais de grupos OH, ao passo que a região de 1700 a 1300 cm -1 é atribuída ao estiramento assimétrico de grupos CO3 2remanescentes do processo de síntese (GUNASEKARAN; ANBALAGAN;PANDI, 2006).…”
Section: ) Propriedades Estruturais E Morfológicasunclassified
“…Além disso, observa-se para todas as amostras mediante a excitação nas transições intraconfiguracionais nas figuras 8C e 8D um perfil espectral similar para os sítios 60 de simetria da fase LaNbO4. Dessa maneira, pode-se inferir a ocupação preferencial do sítio de simetria da fase LaNbO4 para maiores concentrações de Eu 3+ (GRECCO MANFRÉ et al, 2022).…”
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