NaYF4∶Yb3+,Er3+ Upconverting Nanoparticles Surface Ligand Exchange in Ternary Mixture Solvent and Optical Properties
ZHANG Qingbin, KONG Xianggui, WANG Xin, CHENG Cheng
Chem. J. Chinese Universities . 2014, (2): 224 -229 .  DOI: 10.7503/cjcu20130779