Gd_(2)MgTiO_(6):Dy^(3+)荧光粉的制备与发光性能研究  

Preparation and Luminescence Properties of Gd_(2)MgTiO_(6):Dy^(3+)White Phosphor

作　　者：王志文 孙顶[1] 张玉红[1] 刘航[1] 

机构地区：[1]吉林建筑大学电气与计算机学院,长春130118

出　　处：《日用电器》2024年第6期97-100,104,共5页ELECTRICAL APPLIANCES

基　　金：国家自然科学基金,项目编号:61705077;吉林省教育厅“十三五”科学技术项目,项目编号:JJKH20180591KJ。

摘　　要：采用高温固相法制备出一系列Dy^(3+)掺杂双钙钛矿Gd_(2)MgTiO_(6)白色荧光粉样品,通过X射线衍射仪和荧光光谱仪对荧光粉样品的晶体结构及荧光性能进行分析和表征。结果表明:在355 nm近紫外光激发下,样品发出极强的蓝光(484 nm)和黄光(575 nm)。通过调节Dy^(3+)的浓度可以使样品发光颜色向白光区移动,因此Gd_(2)MgTiO_(6):Dy^(3+)是一种可调荧光粉。当Dy^(3+)掺杂浓度为3%时可以发出色坐标为(0.3598,0.3946)的白光。Gd_(2)MgTiO_(6)合成方法简便、组份易调控,是一种具有潜在应用价值荧光材料。Gd_(2)MgTiO_(6):Dy^(3+)white phosphors samples were prepared by a high-temperature solid-phase method.And the structure and luminescent properties of the white phosphors samples were characterized by X-ray diffraction and fluorescence spectroscopy.The results show that the samples emitted very strong blue and yellow light under nearultraviolet excitation at 355 nm.By adjusting the concentration of Dy^(3+)it is possible to move the sample color to white light region.White light with color coordinates(0.3598,0.3946)can be emitted when the doping concentration is 3%.With the advantages of simple synthesis method and easy modulation of composition,Gd_(2)MgTiO_(6) show great potential for application in white LEDs and other fields.

关 键 词：高温固相法 Dy3+掺杂 双钙钛矿 白色荧光粉 

分 类 号：TQ422[化学工程]