摘要
通过水热法合成出NaY(WO_4)_2∶Sm^(3+)上转换荧光粉。该荧光粉性质通过扫描电子显微镜、X射线粉末衍射、激发光谱以及发射光谱来表征。探讨了Sm^(3+)浓度及退火温度对NaY(WO_4)_2∶Sm^(3+)晶体结构、形貌和发光性能的影响。在Sm^(3+)浓度为1.2%,800℃退火条件下合成的样品具有最佳发光性能。利用816nm光激发NaY(WO_4)_2∶Sm^(3+),观察到了563nm处绿光,606nm处橙光以及647nm处的红光发射峰。它们分别来自于Sm^(3+)的~4 G_(5/2)→~6 H_(5/2)、~4 G_(5/2)→~6 H_(7/2)、~ G_(5/2)→~6 H_(9/2)能级跃迁。
Trivalent samarium ions single doped NaY（WO4）2upconversion luminescence phosphors were prepared by hydrothermal method.The properties of resulting phosphors were characterized by scanning electron microscopy,X-ray diffraction,excitation spectra and emission spectra.The effect of concentration of Sm^（3＋）doping and annealing temperature on the crystal structure,morphology and luminescence properties were investigated.The optimum synthesis conditions for NaY（WO4）2with the best luminescent properties：the concentration of Sm^（3＋）was 1.2%,annealed temperature was 800℃.Under 816 nm excitation NaY（WO4）2∶Sm^（3＋）can observed the 563 nm green emission,606 nm orange emission and red emission peak at 647 nm.The emitting light resulted from the transition ~4 G（5/2）→~6 H（5/2）,~4 G（5/2）→~6 H（7/2）and ~4 G（5/2）→~6 H（9/2）of Sm^（3＋）,respectively.
出处
《化工新型材料》
CAS
CSCD
北大核心
2016年第3期155-157,共3页
New Chemical Materials
基金
辽宁省教育厅资助项目(L2013166)
