Effect of Fluxes Agent on Crystal Structure, Morphology and Luminescence Intensity of (Ce_0.67, Tb_0.33) MgAl₁₁O₁₉ Green Phosphors

(CeO_0.67, Tb_0.33)MgAl₁₁O₁₉ (CMAT) phosphors were synthesized by high temperature solid state reaction. MgF₂, AlF₃, Li₂CO₃ and H₃BO₃ were chosen as fluxes agents, whose influences on phase purity, particle morphology and luminescence intensity of phosphors were investigated. The results indicated that CMAT phosphors presented better results in phase purity, particle morphology and luminescence intensity when applying H₃BO₃ as fluxing agents than the other 3 fluxing agents.