SEM micrographs and PL–RL emissions of MNb₂O₆: Eu³⁺ (M = Sr, Cd, Ni) phosphors.

The effect of the grain morphology on the photoluminescence, charge transfer band, and decay properties was investigated by x Eu ³⁺ , y B ³⁺ ( x = 10 mol%, y = 0, 5, 15, 30, 50, 70, and 100 mol%) co-doped BaTa ₂ O ₆ ceramics fabricated by solid-state reaction.

In this work, Dy ³⁺ -doped SrNb ₂ O ₆ phosphors were fabricated by the molten salt process, which avoids high sintering temperatures, prolonged reaction time and poor compositional homogeneity.