中国物理B ›› 2006, Vol. 15 ›› Issue (1): 209-212.doi: 10.1088/1009-1963/15/1/034

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Upconversion luminescence of Tm3+/Yb3+codoped oxyfluoride glasses

张军杰1, 戴世勋1, 胡丽丽1, 段忠超2, 何冬兵2   

  1. (1)Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; (2)Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
  • 收稿日期:2005-03-10 修回日期:2005-09-02 出版日期:2006-01-20 发布日期:2006-01-20
  • 基金资助:
    Project supported by the Shanghai ``Post-Qi-Ming-Xing plan'' for Young Scientists, China (Grant No04QMX1448) and the National Natural Science Foundation of China (Grant No 60207006).

Upconversion luminescence of Tm3+/Yb3+codoped oxyfluoride glasses

Duan Zhong-Chao (段忠超)ab, Zhang Jun-Jie (张军杰)a, He Dong-Bing (何冬兵)ab, Dai Shi-Xun (戴世勋)a, Hu Li-Li (胡丽丽)a   

  1. a Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; b Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
  • Received:2005-03-10 Revised:2005-09-02 Online:2006-01-20 Published:2006-01-20
  • Supported by:
    Project supported by the Shanghai ``Post-Qi-Ming-Xing plan'' for Young Scientists, China (Grant No04QMX1448) and the National Natural Science Foundation of China (Grant No 60207006).

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摘要： Novel oxyfluoride glasses are developed with the composition of 30SiO2-15Al2,O3,-28PbF2,-22CdF2,-0.1TmF3,-xYbF3,-(4.9-x) AlF3,(x=0, 0.5, 1.0, 1.5, 2.0) in mol fraction. Furthermore, the upconversion luminescence characteristics under a 970nm excitation are investigated. Intense blue, red and near infrared luminescences peaked at 453nm, 476nm, 647nm and 789nm, which correspond to the transitions of Tm3,: 1,D2, \to 3F4,, 1G4 \to 3H6, 1G4 \to 3F4, and 3H4 \to 3H6, respectively, are observed. Due to the sensitization of Yb3+ ions, all the upconversion luminescence intensities are enhanced considerably with Yb3+ concentration increasing. The upconversion mechanisms are discussed based on the energy matching rule and quadratic dependence on excitation power. The results indicate that the dominant mechanism is the excited state absorption for those upconversion emissions.

关键词: upconversion luminescence, Tm3+/Yb3+ codoped, oxyfluoride glass

Abstract: Novel oxyfluoride glasses are developed with the composition of 30SiO2-15Al2O3-28PbF2-22CdF2-0.1TmF3-xYbF3-(4.9-x) AlF3(x=0, 0.5, 1.0, 1.5, 2.0) in mol fraction. Furthermore, the upconversion luminescence characteristics under a 970nm excitation are investigated. Intense blue, red and near infrared luminescences peaked at 453nm, 476nm, 647nm and 789nm, which correspond to the transitions of Tm3: 1D2 $\to$ 3F4, 1G4 $\to$ 3H6, 1G4 $\to$ 3F4, and 3H4 $\to$3H6, respectively, are observed. Due to the sensitization of Yb3+ ions, all the upconversion luminescence intensities are enhanced considerably with Yb3+ concentration increasing. The upconversion mechanisms are discussed based on the energy matching rule and quadratic dependence on excitation power. The results indicate that the dominant mechanism is the excited state absorption for those upconversion emissions.

Key words: upconversion luminescence, Tm3+/Yb3+ codoped, oxyfluoride glass

中图分类号:  (Amorphous materials; glasses and other disordered solids)

  • 78.55.Qr
78.30.Ly (Disordered solids)