摘要
采用高温固相法制备Eu^(3+)掺杂的SrTiO_(3)荧光粉末,并对样品进行了X射线衍射(XRD)、扫描电子显微镜(SEM)、紫外-可见分光光度法(UV-vis)、光致发光(PL)谱以及光致发光激发(PLE)谱等测试分析。在950℃的煅烧下,样品随掺杂浓度增加,粒径减小,颗粒均匀,出现轻微团聚情况。荧光分析发现,Eu^(3+)离子掺杂荧光粉发射主峰位于615 nm,对应于强制电偶极子跃迁^(5)D_(0)-^(7)F_(2);随着Eu^(3+)掺杂浓度的提高,发光强度增强,同时红色发光效果更明显。
Eu^(3+)doped SrTiO_(3)fluorescent powder was prepared by high-temperature solid-phase method,and the samples were tested and analyzed by X-ray diffraction(XRD),scanning electron microscopy(SEM),ultraviolet visible spectrophotometer(UV-vis),photoluminescence(PL)spectrum,and photoluminescence excitation(PLE)spectrum.At 950℃calcination,as the doping concentration increases,the particle size of the sample decreases,the particles become uniform,and slight agglomeration occurs.Fluorescence analysis revealed that the main peak of Eu^(3+)ion doped fluorescent powder emission is located at 615 nm,corresponding to the forced electric dipole transition^(5)D_(0)-^(7)F_(2);As the doping concentration increases,the luminescence intensity increases,and the red luminescence effect becomes more pronounced.
作者
马鹏慧
黄鑫
黄桂意
代芸阁
魏留闯
宋玉敏
卢艳琳
MA Penghui;HUANG Xin;HUANG Guiyi;DAI Yunge;WEI Liuchuang;SONG Yumin;LU Yanlin(Yunnan Key Laboratory of Metal Organic Molecular Materials and Devices,School of Chemistry and Chemical Engineering,Kunming University,Kunming 650214,China;School of Physics Science and Technology,Kunming University,Kunming 650214,China;Qujing Inspection,Testing and Certification Institute,Qujing 655000,China)
出处
《云南化工》
2025年第8期53-56,共4页
Yunnan Chemical Technology
基金
春城人才青年专项(C202005005)
云南省科技厅地方联合专项面上项目(C202005005)
2024云南省大学生创新训练项目(S202411393044,云南省市场监督管理局科技计划(2024YSJK13))。
关键词
高温固相法
钛酸锶
Eu^(3+)掺杂
光致发光
High-temperature Solid-phase Method
Strontium Titanate
Eu^(3+)Doping
Photoluminescence
作者简介
马鹏慧(2001-),女,河南开封人,硕士研究生,主要从事稀土钙钛矿发光材料研究;通讯作者:宋玉敏(1980-),女,安徽六安人,助理研究员,主要从事无机材料合成及性能研究工作。
