| 摘要 |
The present invention relates to a titanate luminescent material and preparation method thereof. The titanate luminescent material has the following chemical formula: Ca 1-x Ti 1-y O 3 :Pr x ,R y @TiO 2 @M z , wherein @ represents coating, M z is a core, TiO 2 is an intermediate shell; Ca 1-x Ti 1-y O 3 :Pr x ,R y , is an outer shell, Pr x and R y are doped in Ca 1-x Ti 1-y O 3 ; R is at least one of Al and Ga, and M is at least one of Ag, Au, Pt, Pd and Cu metallic nanoparticles; 0<x‰¤0.01, 0<y‰¤0.20, z is a molar ratio between M and the element Ti in the titanate luminescent material, 0<z‰¤1×010 -2 . The titanate luminescent material is formed into a core-shell structure by doping a charge compensation agent such as ions Al 3+ , Ga 3+ and the like, and encapsulating metallic nanoparticles, thus effectively improving the luminous efficiency of the titanate luminescent material. In addition, the titanate luminescent material has the advantages of good stability and good luminous performance, and thus can be used as a red luminescent material in a cathode ray device. Moreover, the preparation method of the titanate luminescent material is of a simple technique, is pollution free and easy to control, has low requirement for device, and is suitable for industrial production. |
