Dy^(3+)/Tm^(3+)掺杂Na_(2)Gd(PO_(4))(WO_(4))的制备及发光性能研究  

Preparation and luminescence properties of Dy^(3+)/Tm^(3+) doped Na_(2)Gd(PO_(4))(WO_(4)) phosphors

作　　者：林翔宇 孟宪国 许英朝[1,2] 周琼 刘春辉[1,2] 吴盼盼 王明明 王嘉伟 Lin Xiangyu;Meng Xianguo;Xu Yingchao;Zhou Qiong;Liu Chunhui;Wu Panpan;Wang Mingming;Wang Jiawei(School of Photoelectric and Communication Engineering,Xiamen University of Technology,Xiamen 361024;Fujian Provincial Key Laboratory of Optoelectronic Technology and Devices,Xiamen University of Technology,Xiamen 361024)

机构地区：[1]厦门理工学院光电与通信工程学院,厦门361024 [2]厦门理工学院福建省光电技术与器件重点实验室,厦门361024

出　　处：《化工新型材料》2023年第2期239-244,共6页New Chemical Materials

基　　金：福建省自然科学基金面上项目(2019J01876);厦门市科技计划重大项目(3502ZCQ20191002);厦门市科技计划项目(3502Z20183060)。

摘　　要：采用二次熔融的高温固相法合成了一系列Dy^(3+)/Tm^(3+)共掺钠-钆-磷钨酸盐(NGPW)荧光材料,研究了其光致发光特性和热稳定性,以及CIE与激发波长的映射关系。改变激发波长可以让NGPW∶2%Tm^(3+),xDy^(3+)(x=1%、2%、3%、4%、5%)荧光粉的颜色从蓝色-冷白色-暖白色-黄色连续变化。在356nm和363nm激发下,可实现白光发射。对共掺杂荧光粉的荧光衰减曲线进行表征,验证了该荧光粉中Dy^(3+)和Tm^(3+)之间存在能量转移。详细研究了能量传递效率和能量传递机理。NGPW∶2%Tm^(3+),xDy^(3+)荧光粉有望成为极具潜力的色彩可调的单组分荧光粉。A series of Dy^(3+)/Tm^(3+)co-doped sodium-gadolinium-phosphate tungstic(NGPW) fluorescent materials were synthesized by a high-temperature solid phase method of secondary melting.Their photoluminescence properties and thermal stability as well as the mapping relationship between the CIE and the excitation wavelength were investigated.Adjusting the excitation wavelength could change the color of NGPW∶2% Tm^(3+),xDy^(3+)(x=1%,2%,3%,4%,5%) continuously from blue-cold white-warm white-yellow.White light emission was achieved at 356nm and 363nm excitation.Characterization of the fluorescence decay curves of the co-doped phosphors validated the energy transfer between Dy^(3+)and Tm^(3+)in this phosphor.The energy transfer efficiency and the energy transfer mechanism were studied in detail.In summary, NGPW∶2% Tm^(3+),xDy^(3+)phosphor was expected to become highly potential color adjustable single component phosphor.

关 键 词：荧光粉 Dy^(3+)掺杂 Tm^(3+)掺杂 能量转移 

分 类 号：TQ422[化学工程]