共沉淀法制备LaPO_4:Ce,Tb纳米棒及其发光性能

Co-precipitation Synthesis and Luminescent Properties of LaPO_4:Ce,Tb Nanorods

采用共沉淀法合成了LaPO4：Ce，Tb纳米棒，利用XRD和SEM分别测试了样品的物相结构及形貌，用荧光光谱仪测试了样品的激发光谱和发射光谱，研究了不同Ce^3＋含量对LaPO4：Cex，Tb0.06纳米棒发光性能的影响。结果表明：LaPO4：Ce，Tb样品为独居石结构，属于单斜相；样品呈棒状，其长度为100～1000nm，宽度为11～82nm；LaPO4：Ce，Tb纳米棒的最强发射波长为544nm。

LaPO4：Ce, Tb nanorods were prepared by a co-precipitation method. The phase structure and morphology of LaPO4 ：Ce,Tb products were characterized by XRD and SEM. The excitation and emission spectra of the products were obtained by fluorescence spectrometer. The effect of Ce^3＋ concentration on the luminescent property of LaDO4 ： Ce. ,Tb0.06 nanorods was investigated. XRD patterns showed that the LaPO4 ： Ce, Tb phosphor is a monoclinic orthophosphate phase with a monazite structure. SEM images showed that LaPO4 ：Ce,Tb products were rod-like with a length of 100-1 000 nm and a width of 11-82 nm. The emission spectra showed that the strongest emission wavelength of LaPO4 ice, Tb nanorods is 544 nm.