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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
【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.
【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.
【关键词】 (Y,Gd)BO3:Eu;
荧光粉;
表面包覆;
MgF2;
激发光谱;
发射光谱;
【Key words】 <Keyword>(Y,Gd)BO3Eu; phosphor; coated; MgF2; excitation spectrum; emission spectrum;
【Key words】 <Keyword>(Y,Gd)BO3Eu; phosphor; coated; MgF2; excitation spectrum; emission spectrum;
【基金】 国家自然科学基金(批准号:50372025,50172046).
- 【文献出处】 吉林大学学报(理学版) ,Journal of Jilin University (Science Edition) , 编辑部邮箱 ,2005年04期
- 【分类号】TN104.3
- 【被引频次】3
- 【下载频次】179