›› 2014, Vol. 23 ›› Issue (12): 127803-127803.doi: 10.1088/1674-1056/23/12/127803

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

Photoluminescence characteristics and energy transfer between Bi3+ and Eu3+ in Na2O–CaO–GeO2–SiO2 glass

黎千跃, 徐旭辉, 张步豪, 吴玉梅, 邱建备, 余雪   

  1. College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • 收稿日期:2014-05-15 修回日期:2014-07-10 出版日期:2014-12-15 发布日期:2014-12-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11204113 and 61308091) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20115314120001).

Photoluminescence characteristics and energy transfer between Bi3+ and Eu3+ in Na2O–CaO–GeO2–SiO2 glass

Li Qian-Yue (黎千跃), Xu Xu-Hui (徐旭辉), Zhang Bu-Hao (张步豪), Wu Yu-Mei (吴玉梅), Qiu Jian-Bei (邱建备), Yu Xue (余雪)   

  1. College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • Received:2014-05-15 Revised:2014-07-10 Online:2014-12-15 Published:2014-12-15
  • Contact: Yu Xue E-mail:yuyu6593@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11204113 and 61308091) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20115314120001).

摘要: We report the photoluminescence (PL) of Eu3+-doped glass with Bi3+ as a sensitizer. The specific glass system with the strong enhancement of the red emission of Eu3+ is obtained by adding a small number of Bi3+ ions instead of increasing the Eu3+ concentration. The emission band of Bi3+ overlaps with the excitation band of Eu3+ and the lifetime decay curves, resulting in a very efficient energy transfer from Bi3+ to Eu3+. The probability of energy transfer is strongly dependent on Bi3+ concentration. In addition, the intensity of 4f–4f transition is much stronger than that of a charge-transfer (CT) band in the excitation spectrum, which indicates that the Na2O–CaO–GeO2-SiO2 glass is a suitable red-emitting phosphor with high stability as a candidate for light-emitting diodes (LEDs).

关键词: germinate glass, energy transfer, thermal quenching

Abstract: We report the photoluminescence (PL) of Eu3+-doped glass with Bi3+ as a sensitizer. The specific glass system with the strong enhancement of the red emission of Eu3+ is obtained by adding a small number of Bi3+ ions instead of increasing the Eu3+ concentration. The emission band of Bi3+ overlaps with the excitation band of Eu3+ and the lifetime decay curves, resulting in a very efficient energy transfer from Bi3+ to Eu3+. The probability of energy transfer is strongly dependent on Bi3+ concentration. In addition, the intensity of 4f–4f transition is much stronger than that of a charge-transfer (CT) band in the excitation spectrum, which indicates that the Na2O–CaO–GeO2-SiO2 glass is a suitable red-emitting phosphor with high stability as a candidate for light-emitting diodes (LEDs).

Key words: germinate glass, energy transfer, thermal quenching

中图分类号:  (Photoluminescence, properties and materials)

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