Preparation and Luminescent Properties of Red BaZn₂（PO₄）₂: Eu³⁺ Phosphor

A red-emitting phosphor BaZn₂（PO₄）₂:Eu³⁺ was prepared by high temperature solid-state reaction.The excitation and emission spectra of BaZn₂（PO₄）₂:Eu³⁺ phosphors were measured.The results show that the main excitation peaks are located at 360～400nm and the emission peaks are at 595nm.The effect of Eu³⁺ concentration on the emission spectrum intensity of BaZn₂（PO₄）₂:Eu³⁺ was investigated,and the results show that the emission spectrum intensity increases with Eu³⁺ concentration increasing,and reaches the maximum value at 3% Eu³⁺,then decreases.Under the condition of doping 3% Eu³⁺,the effects of charge-compensating on the emission intensity were also investigated.Under the conditions of charge compensation Cl^-,Li⁺,Na⁺,or K⁺ incorporated in BaZn₂（PO₄）₂,the luminescence intensities of BaZn₂（PO₄）₂:Eu³⁺ phosphor are enhanced and Cl^- enhances the intensity of the emission most.