Strong Single-Band Down-Conversion Emission in Tm3+-Doped NaYF4 Microparticles
Chun-Long. XU,Jin-Guo. WANG,Xiang-Yu. ZHANG
Acta Phys. -Chim. Sin. . 2015, (11): 2183 -2190 .  DOI: 10.3866/PKU.WHXB201509142