ZHANG Jian, WANG Shi-wei, AN Li-qiong, LIU Min, CHEN Li-dong. Upconversion Luminescence in Yb<sup>3+</sup>,Er<sup>3+</sup>:Y<sub>2</sub>O<sub>3</sub> Nanocrystalline Powders Excited by a<sub>980</sub> nm Laser Diode[J]. Chinese Journal of Luminescence, 2005,26(6): 789-793
ZHANG Jian, WANG Shi-wei, AN Li-qiong, LIU Min, CHEN Li-dong. Upconversion Luminescence in Yb<sup>3+</sup>,Er<sup>3+</sup>:Y<sub>2</sub>O<sub>3</sub> Nanocrystalline Powders Excited by a<sub>980</sub> nm Laser Diode[J]. Chinese Journal of Luminescence, 2005,26(6): 789-793DOI: