Synthesis, folic acid modification and characterization of core-shell structured upconversion NaYF4: Yb3+, Er3+@nSiO2@mSiO2 nanoparticles
WU Hao, LIU Meifang, QI Ze, LIANG Xuhua, HU Xiaoyun, FAN Jun
功能材料 . 2016, (5): 111 -115 .  DOI: 10.3969/j.issn.1001-9731.2016.05.020