In this study, Dy3+-doped LaNbO4 phosphors with a blue to white emission that can be tuned by varying the activator concentration were prepared by one-step spray pyrolysis process. According to the powder X-ray diffraction results, increasing Dy3+ concentration favored the tetragonal phase. Slight changes were observed in the recorded Raman spectra as a function of Dy3+ concentrations while SEM (scanning electron microscopy) micrographs presented similar profiles regardless the Dy3+ amount. Investigation of Dy3+ emission data in the visible range showed that rising the Dy3+ concentration progressively shifted the emission towards the white color. All samples presented a wide excitation range from 254 to 475 nm.
CITATION STYLE
Freiria, G. S., Ribeiro, A. L., Verelst, M., Nassar, E. J., & Rocha, L. A. (2018). Effect of Dy3+ amount on the structural and luminescence properties of LaNbO4: Dy3+ phosphor obtained by one-step spray pyrolysis process. Journal of the Brazilian Chemical Society, 29(3), 594–601. https://doi.org/10.21577/0103-5053.20170172
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