Sm:LuAG纳米粉体的制备及光谱性能研究  

Study on the Preparation and Spectral Properties of Sm:LuAG Nano-powder

作　　者：汪世杰 林海[1,2,3] 古奇 吕冉 WANG Shi-jie;LIN Hai;GU Qi;LV Ran(School of Materials Science and Engineering,Changchun University of Science and Technology,Changchun 130022;Engineering Research Center of Photoelectric Functional Material of Ministry of Education,Changchun University of Science and Technology,Changchun 130022;Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry,Changchun 130022)

机构地区：[1]长春理工大学材料科学与工程学院,长春130022 [2]长春理工大学光电功能材料教育部工程研究中心,长春130022 [3]吉林省光学材料与化学科技创新中心,长春130022

出　　处：《长春理工大学学报（自然科学版）》2019年第5期134-137,142,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林省科技厅项目（20170204028GX)

摘　　要：采用共沉淀法制备Sm:LuAG纳米粉体,通过X射线衍射分析和SEM测试分析,研究不同pH、煅烧温度和煅烧时间对粉体制备的影响,得到粉体的最佳制备条件为:以NH4HCO3与NH3·H2O的物质的量为4∶1制备的混合溶液作沉淀剂,液相沉淀pH为8.5,在1100℃下煅烧2 h。对最佳条件下制得的粉体进行荧光光谱测试,激发光谱中最强峰值位于406 nm波长处,对应于Sm^3+的6H5/2→4K11/2能级跃迁;最强发射峰在618 nm波长处,对应于Sm^3+的4G5/2→6H7/2能级跃迁。Sm:LuAG nanopowder was synthesized by co-precipitation method.The effects of different pH,calcination temperature and calcination time on the preparation of the powder were studied by X-ray diffraction analysis and SEM analysis.The optimum preparation conditions of powders were obtained as follows:A mixed solution of NH4HCO3 and NH3·H2O was used as a precipitant;wherein the molar ratio of NH4HCO3:NH3·H2O was 4∶1;the liquid phase precipitation pH was 8.5 and calcination at 1100℃ for 2 h.Fluorescence spectrum test of powder shows the strongest peak in the excitation spectrum was at the wavelength of 406 nm,corresponding to the 6H5/2→4K11/2 transition of Sm^3+;the strongest emission peak was at the wavelength of 618 nm,corresponding to the 4G5/2→6H7/2 transition of Sm^3+.

关 键 词：共沉淀法 Sm:LuAG 最佳工艺条件 光谱分析 

分 类 号：TQ133.3[化学工程—无机化工]