828nm近红外光激发下NaYF_4:Pr^(3+)荧光粉上转换发光的光学特性  

Upconversion Luminescence Properties of NaYF_4:Pr^(3+) at 828nm Laser Excitation

作　　者：王雅静[1] 刘小川[1] 史忠祥 肖林久[1] 谢颖[1] 

机构地区：[1]沈阳化工大学应用化学学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2016年第3期193-196,共4页Journal of Shenyang University of Chemical Technology

基　　金：辽宁省教育厅资助项目(L2013166)

摘　　要：利用水热法合成NaYF_4:Pr^(3+)纳米级上转换荧光粉,并通过X射线粉末衍射、激发光谱及发射光谱对其性能进行表征.探讨Pr^(3+)掺杂量、反应温度及焙烧温度对NaYF_4:Pr^(3+)晶体结构和发光性能的影响.在828 nm近红外光激发下,观察到橙光发射峰(590.8 nm),对应Pr^(3+)的1D2→3H4跃迁.Trivalent praseodymium ions single doped NaYF4 up-conversion luminescence nanoparticles were synthesised by hydrothermal method. The properties of the resulting phosphors were characterized by X-ray diffraction,excitation spectra and emission spectra. The effect of Pr^3＋ doping amount, reaction temperature and annealing temperature on the crystal structure and luminescence properties of NaYF4： Pr^3＋was investigated. The orange emission peak（ 590. 8 nm） can be observed at 828 nm laser excitation. The orange emitting light results from the transition of ^1D2→^3H4.

关 键 词：上转换 水热法 NAYF4 Pr3+ 

分 类 号：TQ422[化学工程]