中国物理B ›› 2014, Vol. 23 ›› Issue (5): 57802-057802.doi: 10.1088/1674-1056/23/5/057802

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Up-conversion luminescence properties and energy transfer of Er3+/Yb3+ co-doped oxyfluoride glass ceramic containing CaF2 nano-crystals

马辰硕a, 焦清a, 李龙基a, 周大成a, 杨正文a b, 宋志国a b, 邱建备a b   

  1. a College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;
    b Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093, China
  • 收稿日期:2013-08-21 修回日期:2013-11-26 出版日期:2014-05-15 发布日期:2014-05-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61265004, 51272097, and 11204113) and the Nature and Science Fund from Yunnan Province Ministry of Education, China (Grant No. 2011C13211708).

Up-conversion luminescence properties and energy transfer of Er3+/Yb3+ co-doped oxyfluoride glass ceramic containing CaF2 nano-crystals

Ma Chen-Shuo (马辰硕)a, Jiao Qing (焦清)a, Li Long-Ji (李龙基)a, Zhou Da-Cheng (周大成)a, Yang Zheng-Wen (杨正文)a b, Song Zhi-Guo (宋志国)a b, Qiu Jian-Bei (邱建备)a b   

  1. a College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;
    b Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093, China
  • Received:2013-08-21 Revised:2013-11-26 Online:2014-05-15 Published:2014-05-15
  • Contact: Qiu Jian-Bei E-mail:qiu@kmust.edu.cn
  • About author:78.40.-q; 42.70.-a; 78.66.Jg; 78.67.Bf
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61265004, 51272097, and 11204113) and the Nature and Science Fund from Yunnan Province Ministry of Education, China (Grant No. 2011C13211708).

摘要: The Er3+/Yb3+ co-doped transparent oxyfluoride glass-ceramics containing CaF2 nano-crystals were successfully prepared. After heat treatments, transmission electron microscopy (TEM) images showed that CaF2 nano-crystals of 20-30 nm in diameter precipitated uniformly in the glass matrix. Comparing with the host glass, high efficiency upconversion luminescence of Er3+ at 540 nm and 658 nm was observed in the glass ceramics under the excitation of 980 nm. Moreover, the size of the precipitated nano-crystals can be controlled by heat-treatment temperature and time. With the increase of the nano-crystal size, the intensity of the red emission increased more rapidly than that of the green emission. The energy transfer process of Er3+ and Yb3+ was convinced and the possible mechanism of Er3+ up-conversion was discussed.

关键词: nano-crystals, up-conversion luminescence, Er3+/Yb3+ co-doped glass ceramics

Abstract: The Er3+/Yb3+ co-doped transparent oxyfluoride glass-ceramics containing CaF2 nano-crystals were successfully prepared. After heat treatments, transmission electron microscopy (TEM) images showed that CaF2 nano-crystals of 20-30 nm in diameter precipitated uniformly in the glass matrix. Comparing with the host glass, high efficiency upconversion luminescence of Er3+ at 540 nm and 658 nm was observed in the glass ceramics under the excitation of 980 nm. Moreover, the size of the precipitated nano-crystals can be controlled by heat-treatment temperature and time. With the increase of the nano-crystal size, the intensity of the red emission increased more rapidly than that of the green emission. The energy transfer process of Er3+ and Yb3+ was convinced and the possible mechanism of Er3+ up-conversion was discussed.

Key words: nano-crystals, up-conversion luminescence, Er3+/Yb3+ co-doped glass ceramics

中图分类号:  (Absorption and reflection spectra: visible and ultraviolet)

  • 78.40.-q
42.70.-a (Optical materials) 78.66.Jg (Amorphous semiconductors; glasses) 78.67.Bf (Nanocrystals, nanoparticles, and nanoclusters)