WU Qi-xiao, ZHAO Su-ling, XU Zheng, SONG Dan-dan, QIAO Bo, ZHANG Jun-jie, ZUO Peng-fei. Synthesis and Upconversion Mechanism of NaYF4∶Yb3+,Er3+ Nanocrystal Doped with Different Concentration of SensitizerTQ422[J]. Spectroscopy and Spectral Analysis, 2019, 39(5): 1406