中文摘要：

采用水热法制备了微纳米CaTiO3：Pr^3＋ 荧光粉，采用XRD、SEM和荧光光谱仪对荧光粉的结构、形貌及发光性能进行分析。结果表明，所制得的CaTiO3：Pr^3’荧光粉物相纯正无杂质，结晶度好；有较宽激发带，激发峰值为323nm，发射主峰位于613nm处，呈锐线状，属红色发光。比较水解抑制剂的种类和NaOH溶液的浓度对制备CaTiO3：Pr^3＋荧光粉的作用，发现选用HNO3作为水解抑制剂，NaOH溶液的浓度为1mol／L时制备的CaTiO3：Pr^3＋荧光粉结晶程度最高，晶粒尺寸均匀，粒度约为500nm，发光性能最佳。

英文摘要：

CaTiO3： Pr^3＋ phosphor was prepared by hydrothermal method. The structure, morphology and luminescent properties of samples were characterized by powder X-ray diffraction, scanning electron microscopy, and fluorescence Spectrometer. The results indicate that CaTiO3 ： Pr3＋ fluorescent powder has the pure phase and good crystallinity. It has a abroad excitation band with excitation peak around 323 nm and a single red emission peak at 613 nm. The effects of hydrolysis inhibitor and the concentration of NaOH solution on CaTiO3： Pr^3＋ phosphors were compared. The optimum conditions for preparation were using HNO3 as hydrolysis inhibitor and the concentration of NaOH solution for 1 mol/L. In this condition, well crystallized and homogenous distributed CaTiO3 ： P^r3 ＋ powder was obtained with best luminescent pronertv. The average size of particle is about 500 nm.