LaPO4:Ce-coated calcium strontium aluminum europium composite luminescent material as well as preparation method and application thereof

The invention provides a LaPO4:Ce-coated calcium strontium aluminum europium composite luminescent material as well as a preparation method and application thereof, and belongs to the technical field of luminescent materials. The LaPO4:Ce-coated calcium strontium aluminum europium composite luminescent material disclosed by the invention comprises Ca0.49Sr0.49Al2O4:Eu0.02 and a lanthanum cerium phosphate compound coating the surface of the Ca0.49Sr0.49Al2O4:Eu0.02. According to the invention, the lanthanum-cerium phosphate compound is adopted for coating the Ca0.49Sr0.49Al2O4:Eu0.02,the LaPO4:Ce-doped composite material can absorb ultraviolet light, and a corresponding spectrum can be emitted within the absorption spectrum range of Ca0.49Sr0.49Al2O4:Eu0.02, thereby realizing the effect of spectrum adjustment. 本发明提供了一种LaPO4:Ce包覆钙锶铝铕复合发光材料及其制备方法和应用，属于发光材料技术领域。本发明所述LaPO4:Ce包覆钙锶铝铕复合发光材料包括Ca0.49Sr0.49Al2O4:Eu0.02和包覆于所述Ca0.49Sr0.49Al2O4:Eu0.02表面的磷酸镧铈复合物。本发明采用磷酸镧铈复合物包覆Ca0.49Sr0.49Al2O4:Eu0.02，LaPO4:Ce掺杂后的复合材料可吸收紫外光，