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(Y,Gd)BO₃:Eu荧光粉的表面包覆与性能

Synthesis and Characterization of （Y,Gd）BO₃:Eu Modified on the Surface

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【Author】 ZHAO Xue-ping~1, DUAN Gui-hua~2, CUI Yu-ming~2, JIN Wei-qun~2, ZHAO Li-jun~2,XIE Yi-hua~3, WANG Xiao-jun~3, YANG Hua~2(1. College of Physics, Jilin University, Changchun 130021, China;2. College of Chemistry, Jilin University, Changchun 130021, China;3. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China)

【机构】吉林大学物理学院；吉林大学化学学院；中国科学院长春光学精密机械与物理研究所；吉林大学化学学院长春130021；长春130021；长春130033；长春130021；

【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.更多还原

【Abstract】 (Y,Gd)BO₃Eu powders were prepared with the conventional solid-reaction method. Surface-modified （Y,Gd）BO₃Eu powders with MgF₂ were prepared by the emulsion method. The best preparing way is that MgCl₂ was dropped to the mixture of NH₄F and （Y,Gd）BO₃Eu powders to prepare surface-modified （Y,Gd）BO₃Eu powders. The interaction between F^- ions and the phosphor particles was discussed. The structures of surface-modified （Y,Gd）BO₃Eu powders were measured by XRD, IR, excitation spectra and \{emission\} spectra.更多还原