Eu<sub>3+</sub>,Tb<sub>3+</sub>共掺杂的NaGd(WO4)2颜色可调荧光粉的水热合成及发光性质研究

翟永清; 姜龙太; 邓德芮; 汪威澳; 陈湘匀; 吴晗

人工晶体学报, 2020, 49 (10): 1825, 网络出版: 2021-01-09

Eu₃₊,Tb₃₊共掺杂的NaGd(WO4)2颜色可调荧光粉的水热合成及发光性质研究

Hydrothermal Synthesis and Luminescent Properties of Eu₃₊,Tb₃₊ Co-Doped NaGd(WO4)2 Phosphors with Tunable Color

论文大纲

翟永清 ^*姜龙太邓德芮汪威澳陈湘匀吴晗

作者单位

河北大学化学与环境科学学院，保定 071002

Eu3+,Tb3+共掺水热法近紫外光激发发光调控 NaGd(WO4)2 NaGd(WO4)2 Eu3+,Tb3+ co-doping hydrothermal method near-ultraviolet light excitation luminous regulation

摘要

在不添加任何模板剂的情况下，采用温和水热法，制备了一系列NaGd0.96-x(WO4)2∶0.04Tb3+,xEu3+(x=0, 0.005, 0.01,0.02,0.04,0.06,0.08,0.10,0.12,0.14,0.16,0.18)荧光粉。采用X射线粉末衍射仪(XRD)、扫描电子显微镜(SEM)以及荧光分光光度计分别对所得样品的物相结构、形貌粒度及发光性能进行分析表征。结果表明：所合成的样品为NaGd(WO4)2的纯相，属四方晶系白钨矿结构。其形貌为规整的四方盘形，尺寸均一、分散性良好。系列样品均能被近紫外光有效激发，通过改变NaGd(WO4)2中Eu3+/Tb3+的掺杂浓度，实现了对荧光粉发光颜色由绿色到红色的全色调控。

Abstract

A series of NaGd0.96-x(WO4)2∶0.04Tb3+,xEu3+(x=0, 0.005, 0.01, 0.02, 0.04, 0.06, 0.08, 0.10, 0.12, 0.14, 0.16, 0.18) phosphors were prepared by a relatively mild hydrothermal method without the addition of any template. The phase structure, morphology and particle size, and luminescence properties of the samples were investigated by X-ray powder diffractometry (XRD), scanning electron microscopy (SEM) and fluorescence spectrophotometry, respectively. The results show that the as-synthesized samples are pure NaGd(WO4)2 with tetragonal scheelite structure, and possess defined square-plate morphology, uniform size distribution and good dispersity. All the samples can be excited effectively by near-ultraviolet light, and the emitting color can be tuned from green to red color by changing the doping concentration of Eu3+ and Tb3+.

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翟永清, 姜龙太, 邓德芮, 汪威澳, 陈湘匀, 吴晗. Eu₃₊,Tb₃₊共掺杂的NaGd(WO4)2颜色可调荧光粉的水热合成及发光性质研究[J]. 人工晶体学报, 2020, 49(10): 1825. ZHAI Yongqing, JIANG Longtai, DENG Derui, WANG Weiao, CHEN Xiangyun, WU Han. Hydrothermal Synthesis and Luminescent Properties of Eu₃₊,Tb₃₊ Co-Doped NaGd(WO4)2 Phosphors with Tunable Color[J]. Journal of Synthetic Crystals, 2020, 49(10): 1825.

Eu₃₊,Tb₃₊共掺杂的NaGd(WO4)2颜色可调荧光粉的水热合成及发光性质研究

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