软化学法合成Gd_2O_3:Er^(3+)荧光粉粒径与形貌的控制  

Control of particle size and morphology in soft chemistry synthesis Gd_2O_3:Er^(3+) phosphor

作　　者：肖林久[1] 万修倩 谢颖[1] 崔永强[1] 汪书东 XIA O Linjiu WAN Xiuqian XIE Ying CUI Yongqiang WANG Shudong(Institute of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110004, China)

机构地区：[1]沈阳化工大学应用化学学院,辽宁沈阳110004

出　　处：《中国粉体技术》2016年第6期75-79,共5页China Powder Science and Technology

基　　金：辽宁省教育厅科技攻关项目;编号:2009S081

摘　　要：探讨一种以非极性溶剂液体石蜡为有机相,利用表面活性剂的组装构型控制制备Gd_2O_3:Er^(3+)荧光粉,通过改变表面活性剂用量控制粒径大小,采用X射线衍射和扫描电子显微镜分析所制粉体的结构、形貌和粒径大小。结果表明,表面活性剂组装固型法所制备的样品为立方晶相,形貌为球形,粒径均匀。与沉淀法和溶胶-凝胶法所制备的荧光粉相比,表面活性剂组装固型法制备的样品粒径较小,分布较窄,平均粒径为48 nm;荧光粉的激发峰位于380 nm处,发射峰位于563 nm处,表面活性剂组装构型控制制备Gd_2O_3:Er^(3+)荧光粉的发光强度显著强于沉淀法和溶胶-凝胶法所制备的荧光粉,其发光强度是沉淀法的4倍以上,是溶胶-凝胶法的10倍以上。Using a non-polar solvent liquid paraffin as organic phase, the surfactants self-assembled configuration control preparation of Gd2O3：Er^3＋ fluorescent powder was researched, and the size of the grain diameter was comtrolled through the change of surfactant content. XRD and SEM were used to analyze the prepared powder of structure, morphology and particle. The results indicate that the samples prepared by surfactant-curing method is cubic phase with spherical shape and uniform particle size. With precipitation and sol-gel preparation by the phosphor, the sample is preparated by surfactant-curing method that size is small, narrow distribution, the average particle diameter of 48 nm. The excitation and emission peak is located at 380 nm and 563 nm, compared with precipitation and sol-gel method, the sample preparated by surfactant-curing method have a stronger luminescence. The luminous intensity is four times bigger than the precipitation, is a more than 10 times of sol-gel method.

关 键 词：GD2O3 E-荧光粉 表面活性剂组装固型法 沉淀法 溶胶-凝胶法 

分 类 号：O482.31[理学—固体物理]