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| 掺杂离子对Gd2O2S:Eu3+磷光体结构和发光性能的影响 | |
| 引用本文： | 王飞,刘大春,杨斌,刘利军,戴永年.掺杂离子对Gd2O2S:Eu3+磷光体结构和发光性能的影响[J].中国有色金属学报,2012,22(4):1107-1112. |
| 作者姓名： | 王飞 刘大春 杨斌 刘利军 戴永年 |
| 作者单位： | 1. 昆明理工大学真空冶金国家工程实验室,昆明650093;昆明理工大学云南省有色金属真空冶金重点实验室,昆明650093;昆明理工大学冶金与能源工程学院,昆明650093 2. 昆明理工大学真空冶金国家工程实验室,昆明650093;昆明理工大学云南省有色金属真空冶金重点实验室,昆明650093 3. 昆明理工大学冶金与能源工程学院,昆明,650093 |
| 摘 要： | 采用高温固相反应法制备出新型红色长余辉发光材料Gd2O2S:Eu3+,Xn+(X为Mg、Si、Ti中的一种或两种),研究掺杂离子对Gd2O2S:Eu3+磷光体的晶体结构、形貌粒度和发光性能的影响。通过X射线粉末衍射(XRD)、扫描电镜(SEM)和分光光度计等对合成产物进行分析与表征。结果表明:掺杂离子没有改变Gd2O2S:Eu3+磷光体的晶体结构,颗粒的形貌为类球形,分散性良好。同时,掺杂离子显著地延长发光材料Gd2O2S:Eu3+的余辉时间,并显示纯正的红色发光。 |
| 关 键 词： | Gd2O2S:Eu3+ 磷光体 掺杂离子 光谱 |
Influence of doped ions on crystal structure and luminescent properties of Gd2O2S:Eu3+ phosphor |
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| WANG Fei , LIU Da-chun , YANG Bin , LIU Li-jun , DAI Yong-nian.Influence of doped ions on crystal structure and luminescent properties of Gd2O2S:Eu3+ phosphor[J].The Chinese Journal of Nonferrous Metals,2012,22(4):1107-1112. | |
| Authors: | WANG Fei LIU Da-chun YANG Bin LIU Li-jun DAI Yong-nian |
| Affiliation: | 1,2,3 (1.National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology,Kunming 650093,China; 2.Yunnan Provincial Key Laboratory of Nonferrous Vacuum Metallurgy, Kunming University of Science and Technology,Kunming 650093,China; 3.Faculty of Metallurgical and Engineering,Kunming University of Science and Technology,Kunming 650093,China) |
| Abstract: | Gd2O2S:Eu3+,Xn+(X is Mg,Si or Ti),as a novel red long afterglow phosphor,was synthesized by high-temperature solid-state reaction method.And the effects of the doped ions on the crystal structure,particle size distribution,luminescent properties and afterglow properties of the Gd2O2S:Eu3+ phosphor were studied.The synthesized phosphors were investigated,respectively,by XRD,SEM and fluorescence spectrophotometer.The results show that the doped ions do not change the crystal structure of Gd2O2S:Eu3+,which is hexagonal crystal structure and similar to that of Gd2O2S matrix.The particles of Gd2O2S:Eu3 +,Xn+(X is Mg,Si or Ti) are basically spherical in shape,with good dispersion.There is red shift of its main excitation peak which is also broadened and strengthened on the excitation spectrum by doping Mg2+,Si4+,Ti4+,etc.And the enhancement of luminescent properties including brightness and long-afterglow property is also confirmed due to incorporations of doped ions. |
| Keywords: | Gd2O2S:Eu3 + phosphor dopant spectrum |
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