中国物理B ›› 2014, Vol. 23 ›› Issue (2): 24205-024205.doi: 10.1088/1674-1056/23/2/024205

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Spectroscopic properties and mechanism of Tm3+/Er3+/Yb3+ co-doped oxyfluorogermanate glass ceramics containing BaF2 nanocrystals

胡曰博a, 邱建备b, 周大成b, 宋志国b, 杨正文b, 王荣飞b, 焦清b, 周大利c   

  1. a Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China;
    b Key Laboratory of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;
    c College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
  • 收稿日期:2013-04-08 修回日期:2013-04-27 出版日期:2013-12-12 发布日期:2013-12-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61265004 and 51272097) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20125314120018).

Spectroscopic properties and mechanism of Tm3+/Er3+/Yb3+ co-doped oxyfluorogermanate glass ceramics containing BaF2 nanocrystals

Hu Yue-Bo (胡曰博)a, Qiu Jian-Bei (邱建备)b, Zhou Da-Cheng (周大成)b, Song Zhi-Guo (宋志国)b, Yang Zheng-Wen (杨正文)b, Wang Rong-Fei (王荣飞)b, Jiao Qing (焦清)b, Zhou Da-Li (周大利)c   

  1. a Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China;
    b Key Laboratory of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;
    c College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
  • Received:2013-04-08 Revised:2013-04-27 Online:2013-12-12 Published:2013-12-12
  • Contact: Qiu Jian-Bei E-mail:qiu@kmust.edu.cn
  • About author:42.70.-a
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61265004 and 51272097) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20125314120018).

摘要: Transparent Tm3+/Er3+/Yb3+ co-doped oxyfluorogermanate glass ceramics containing BaF2 nanocrystals are prepared. Under excitation of a 980-nm laser diode (LD), compared with the glass before heat treatment, the Tm3+/Er3+/Yb3+ co-doped oxyfluorogermanate glass ceramics can emit intense blue, green and red up-conversion luminescence and Stark-split peaks; X-ray diffraction (XRD) and transmission electron microscope (TEM) results show that BaF2 nanocrystals with an average diameter of 20 nm are precipitated from the glass matrix. Stark splitting of the up-conversion luminescence peaks in the glass ceramics indicates that Tm3+, Er3+ and (or) Yb3+ ions are incorporated into the BaF2 nanocrystals. The up-conversion luminescence intensities of Tm3+, Er3+ and the splitting degree of luminescence peaks in the glass ceramics increase significantly with the increase of heat treat temperature and heat treat time extension. In addition, the possible energy transfer process between rare earth ions and the up-conversion luminescence mechanism are also proposed.

关键词: up-conversion luminescence, oxyfluorogermanate glass ceramic, Tm3+/Er3+/Yb3+ co-doped, energy transfer

Abstract: Transparent Tm3+/Er3+/Yb3+ co-doped oxyfluorogermanate glass ceramics containing BaF2 nanocrystals are prepared. Under excitation of a 980-nm laser diode (LD), compared with the glass before heat treatment, the Tm3+/Er3+/Yb3+ co-doped oxyfluorogermanate glass ceramics can emit intense blue, green and red up-conversion luminescence and Stark-split peaks; X-ray diffraction (XRD) and transmission electron microscope (TEM) results show that BaF2 nanocrystals with an average diameter of 20 nm are precipitated from the glass matrix. Stark splitting of the up-conversion luminescence peaks in the glass ceramics indicates that Tm3+, Er3+ and (or) Yb3+ ions are incorporated into the BaF2 nanocrystals. The up-conversion luminescence intensities of Tm3+, Er3+ and the splitting degree of luminescence peaks in the glass ceramics increase significantly with the increase of heat treat temperature and heat treat time extension. In addition, the possible energy transfer process between rare earth ions and the up-conversion luminescence mechanism are also proposed.

Key words: up-conversion luminescence, oxyfluorogermanate glass ceramic, Tm3+/Er3+/Yb3+ co-doped, energy transfer

中图分类号:  (Optical materials)

  • 42.70.-a