Synthesis and luminescence mechanism of rare earth doped gadolinium niobate for white light up-conversion luminescent materials
GdNbO4:Yb3+/Er3+/Tm3+up-conversion white light phosphor was synthesized by hydrothermal method under mild experimental conditions.The effect of different calcination temperatures on the structure and luminescent properties of the samples was evaluated,confirming the optimal calcination temperature for GdNbO4:Yb3+/Er3+/Tm3+phosphor.The influence of doping concentrations of different rare earth ions on the luminescent performance of GdNbO4:Yb3+/Er3+/Tm3+phosphors was investigated,and the luminescent color adjustability of phosphors was achieved by controlling doping concentration.