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
NaGdF4∶Yb3+/Eu3+/ x Li+晶体的SEM图 (a): x =0 mol%; (b): x =10 mol%; (c), (d): x =15 mol%