MZnP04：RE（M=Li，Na，K；RE=Eu3＋,La3＋,Ce3＋）的高温固相合成及其发光性质

Fabrication and Luminecent Properties of MZnPO4：RE （M=Li, Na, K; RE=Eu3＋,La3＋,Ce3＋） by Hign-tempetrature Solid-state Sytheses

采用高温固相反应合成MZnP04：RE（M=Li，Na，K；RE=Eu3＋，La3＋，Ce3＋），用XRD、SEM和EDS等方法对产物进行表征，对产物的发光性能进行研究，结果表明，掺杂三价稀土离子Eu3＋，b3＋，Ce3＋没有改变MZnPO4（M=Li，Na，K）的晶体结构和颗粒形貌，在紫外光（260nm）激发下，Eu3＋惨杂的MZnPO4：Eu3＋（M=Li，Na，K）改变了MZnPO4（M=Li，Na，K）的发光波长，发射橙红色光，主峰位于595nm附近，为Eu3＋的5D0→7F1跃迁发射；La3＋，Ce3＋掺杂的MZnP04：RE（M=Li，Na，K，RE=La3＋,Ce3＋）发射蓝色光，最高峰对应波长为400-500nm，没有改变MZnPO4（M=Li，Na，K）的发光波长，但提高了强度，La3＋掺杂的强度大于Ce3＋掺杂，非荧光稀土离子La3＋作为添加剂提高基质材料的荧光性能，而Ce3＋属于4F1→5D1的跃迁发射。

MZnPO4：RE （M=Li, Na, K; RE=Eu3＋,La3＋,Ce3＋） were synthesized by high temperature solid-state reaction, and characterized by XRD,SEM, EDS. Their luminescent properties were investigated by using luminescence spectra. The results show that both crystal structure and particle morphology of MZnPO4 （M=Li, Na, K） have not changed after being doped with Eu3＋,La3＋,Ce3＋. However, under the ultraviolet （260 urn） radiation, Eu3＋ doped MZnPO4： Eu3＋ （M=Li, Na, K） change the Luminescence wavelength of MZnPO4 （M=Li, Na, K） , and the emitted orange-red light showed a dominant peak at 595 nm attributed to the 5D0→7F1 transition of Eu3＋. The blue light emitted by La3＋,Ce3＋ doped MZnPO4：RE （M= Li, Na, K, RE= La3＋,Ce3＋） showed a dominant peak at 400-500 nm without change the Luminescence wavelength of MZnPO4 （M=Li, Na, K） ,but the corresponding luminescence intensity is improved. The non-fluorescence rare earth ions La3＋ as additives can increase the fluorescent properties of the substrate material, which was greatly enhanced than that of the 4F→5SD, transition of Ce3＋.