(Y,Gd)BO_3:Eu荧光粉的表面包覆与性能  

Synthesis and Characterization of (Y,Gd)BO_3:Eu Modified on the Surface

作　　者：赵学平[1] 段桂花[2] 崔玉明[2] 金为群[2] 赵丽君[2] 谢宜华[3] 王晓君[3] 杨桦[2] 

机构地区：[1]吉林大学物理学院,长春130021 [2]吉林大学化学学院,长春130021 [3]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《吉林大学学报（理学版）》2005年第4期489-493,共5页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:50372025;50172046).

摘　　要：采用传统的高温反应方法合成出(Y,Gd)BO3∶Eu荧光粉颗粒.利用乳胶法对荧光粉颗粒表面包覆MgF2.对包覆过程中反应物种类与浓度、反应温度与时间进行研究,将NH4F直接滴定到MgCl2和荧光粉混合物中包覆最佳.通过X射线衍射、红外光谱、激发光谱和发射光谱等研究了表面包覆的荧光粉颗粒的结构性能.(Y,Gd)BO_3Eu powders were prepared with the conventional solid-reaction method. Surface-modified (Y,Gd)BO_3Eu powders with MgF_2 were prepared by the emulsion method. The best preparing way is that MgCl_2 was dropped to the mixture of NH_4F and (Y,Gd)BO_3Eu powders to prepare surface-modified (Y,Gd)BO_3Eu powders. The interaction between F^- ions and the phosphor particles was discussed. The structures of surface-modified (Y,Gd)BO_3Eu powders were measured by XRD, IR, excitation spectra and \{emission\} spectra.

关 键 词：(Y Gd)BO3:Eu 荧光粉 表面包覆 MGF2 激发光谱 发射光谱 

分 类 号：O482.31[理学—固体物理]