掺杂Li+的NaGdF4∶Yb3+/Eu3+上转换发光增强及防伪应用
王翀1, 任仲翾1,2, 李冬冬1, 佘江波2

Enhanced Up-Conversion Emission of NaGdF4: Yb3+/Eu3+Crystal via Li+ Doping for Anti-Counterfeiting Application
WANG Chong1, REN Zhong-xuan1,2, LI Dong-dong1, SHE Jiang-bo2
(a) NaGdF4∶Yb3+/Eu3+/ x Li+ ( x =5、 10、 15、 20、 25 mol%)X射线衍射图; (b) (100)晶面X射线衍射图