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采用高温固相法合成Ca0.8 Zn0.2 TiO3:0.2％Pr3+,Si4+和Ca0.8 Zn0.2 TiO3:0.2％Pr3+,Si4+,Lu3+荧光粉.通过X射线衍射仪、电子顺磁共振光谱仪、显微拉曼光谱仪和荧光光谱仪等表征了该系列荧光粉的物相组成、微观结构和发光性质.结果表明,以β-Si3 N4为硅源制备的荧光粉具有最佳的光学性能.加入ZnO后,荧光粉由CaTiO3、Zn2 TiO4和Ca2 Zn4 Ti16 O38三相组成,其中CaTiO3为主相.电子顺磁共振谱证实了Pr4+存在,Lu3+的添加使[Pr4+Ti3+O3]+簇显著增加,电子顺磁共振谱和拉曼光谱均证实Si4+、Lu3+的掺杂使局部TiO6簇对称性提高,有利于Pr3+发光中心的能量传递.在336 nm激发下,荧光粉展示了很强的位于612 nm的红光发射(归属于Pr3+的1D2→3H4跃迁)及理想的红光色坐标(x=0.670,y=0.330).Si4+和Lu3+的添加显著增强了370 nm激发下红光发射,Ca0.8 Zn0.2 TiO3:0.2％Pr3+,3.2％Si4+荧光粉的余辉寿命最长.“,”Ca0.8Zn0.2TiO3:0. 2％Pr3+,Si4+ and Ca0.8Zn0.2TiO3:0. 2％Pr3+,Si4+,Lu3+ phosphors were synthesized by high temperature solid-state method. Crystalline phase, microstructure and lu-minescence properties of phosphors were characterized with X-ray diffractometer ( XRD) , electron paramagnetic resonance spectrometer ( EPR ) , microscopic Raman spectrometer and photolumines-cence spectrometer, respectively. The results show that phosphor prepared using β-Si3 N4 as Si source has the optimal luminescence properties. Phosphors with the addition of ZnO were confirmed to be constituted of CaTiO3 , Zn2 TiO4 and Ca2 Zn4 Ti16 O38 , and CaTiO3 is major phase. EPR spectra confirm that the presence of Pr4+ and [ Pr4+Ti3+O3 ] + clusters remarkably increase with the Lu3+addition. Increasing local symmetry of TiO6 clusters with the addition of Si4+ and Lu3+ is verified by EPR and Raman spectra, which is beneficial for the energy transfer of luminescent center Pr3+. The obtained phosphor exhibited the intense red emission centered at 612 nm ( originated from 1 D2→3 H4 transition of Pr3+) with an ideal chromaticity coordinate located at (x= 0. 670, y=0. 330) under 336nm excitation. Red emission excited by 370 nm remarkably increases with the addition of Si4+ and Lu3+. The synthetic Ca0. 8 Zn0. 2 TiO3:0. 2％Pr3+,3. 2％Si4+ phosphor has the longest average lifetime.