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白色荧光粉NaGd(MoO42:Dy3+,Eu3+的水热合成及发光性能
引用本文:姜营营,刘桂霞,王进贤,董相廷,于文生.白色荧光粉NaGd(MoO42:Dy3+,Eu3+的水热合成及发光性能[J].高等学校化学学报,2013,34(4):794-799.
作者姓名:姜营营  刘桂霞  王进贤  董相廷  于文生
作者单位:长春理工大学化学与环境工程学院, 应用化学与纳米技术吉林省高校重点实验室, 长春 130022
基金项目:国家自然科学基金(批准号:51072026,50972020)和吉林省科技发展计划项目(批准号:20090528)资助.
摘    要:采用谷氨酸辅助水热法合成了八面体形NaGd(MoO4)2:Dy3+,Eu3+白色荧光粉.X射线衍射结果表明,合成的样品为四方晶系的NaGd(MoO4)2纯相.扫描电子显微镜照片显示所制备的粒子为八面体形,各边长约为2μm.荧光光谱结果表明,在NaGd(MoO4)2:4%Dy3+,yEu3+(y=0,0.5%,0.6%,0.7%,0.8%,0.9%,1.0%)样品中,随着Eu3+掺入量的增加,Dy3+的发射峰逐渐减弱,而Eu3+的发射峰逐渐增强,说明Dy3+-Eu3+之间存在能量传递.通过色坐标图可知,当Eu3+掺杂量y=0.9%时,荧光粉的色坐标(0.338,0.281)与标准的白光色坐标(0.33,0.33)接近,表明NaGd(MoO4)2:4%Dy3+,0.9%Eu3+是很好的近紫外光激发下的白色荧光粉.

关 键 词:NaGd(MoO4)2:Dy3+  Eu3+  发光材料  白光  水热合成
收稿时间:2012-07-16

Hydrothermal Preparation and Luminescence Properties of NaGd(MoO4)2: Dy3+,Eu3+ White-light Phosphors
JIANG Ying-Ying,LIU Gui-Xia,WANG Jin-Xian,DONG Xiang-Ting,YU Wen-Sheng.Hydrothermal Preparation and Luminescence Properties of NaGd(MoO4)2: Dy3+,Eu3+ White-light Phosphors[J].Chemical Research In Chinese Universities,2013,34(4):794-799.
Authors:JIANG Ying-Ying  LIU Gui-Xia  WANG Jin-Xian  DONG Xiang-Ting  YU Wen-Sheng
Institution:School of Chemistry and Environmental Engineering, Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Abstract:Dy, Eu co-doped NaGd(MoO4)2 white-light phosphors were prepared by a simple glutamic acid-assisted hydrothermal method. X-Ray diffraction(XRD) patterns show that the samples are tetragonal phase NaGd(MoO4)2. Scanning electron microscopy(SEM) images show that the as-prepared particles have an octagonal shape with each side length of about 2 μm. In the fluorescence spectra of NaGd(MoO4)2: Dy,Eu, it is found that the emission intensity of Eu3+ increased and the emission intensity of Dy3+ decreased with increasing the amount of Eu3+ and maintaining the concentration of Dy3+. The energy transmission of Dy3+-Eu3+ is observed. From Commission Internationale de L'Eclairage(CIE) chromaticity diagram, it is noted that white light can be achieved in NaGd(MoO4)2: 4%Dy3+,0.9%Eu3+ phosphor, the CIE color coordinates(0.338, 0.281) are near to the standard color coordinates(0.33, 0.33).
Keywords:4)2: Dy3+  NaGd(MoO4)2: Dy3+" target="_blank">Eu3+')" href="#">NaGd(MoO4)2: Dy3+  Eu3+  Luminescent material  White light  Hydrothermal preparation
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