Chemical co-precipitation of hybrid precursors to synthesize Eu3+/Dy3+ activated YNb P1−O4 and YNb V1−O4 microcrystalline phosphors

A modified wet-chemical synthesis technology was put forward to fabricate Eu3+/Dy3+ doped with YNbxP1−xO4 and YNbxV1−xO4 phosphors with varying x from the assembly of multicomponent hybrid precursors. The morphologies have been found to be 1–2 μm crystalline spheres using XRD and SEM. The red photoluminescence intensity reaches the strongest in YNb0.8P0.2O4:Eu3+ and YNb0.1V0.9O4:Eu3+ phosphors and the red to orange intensity ratio (RO) values decrease with the content of P(V) increasing. Besides this, the optimum concentration for Dy3+ luminescence in YNb0.5P0.5O4 is 1 mol%, while that in YNb0.5V0.5O4 is 0.5 mol% or lower than 0.5 mol%. The yellow to blue intensity ratio (YB) value of Dy3+ increases when the Dy3+ concentration increases from 0.5 to 8 mol% in YNb0.5P0.5O4; however, that of Dy3+ does not vary much in YNb0.5V0.5O4 matrix.