中国物理B ›› 2014, Vol. 23 ›› Issue (2): 28505-028505.doi: 10.1088/1674-1056/23/2/028505

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

A novel strong green phosphor：K3Gd(PO4)2：Ce3+, Tb3+ for a UV-excited white light-emitting-diode

姜庭明a, 余雪a b, 徐旭辉a b, 周大成a b, 余红玲a, 杨鹏辉a, 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:2013-05-20 修回日期:2013-06-14 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. 11204113, 61265004, and 51272097), the Foundation of Application Research of Yunnan Province, China (Grant No. 2011FB022), the Chinese Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20115314120001), the Postdoctoral Science Foundation of China (Grant No. 2011M501424), and the National Basic Research Program of China (Grant No. 2011CB211708).

A novel strong green phosphor：K3Gd(PO4)2：Ce3+, Tb3+ for a UV-excited white light-emitting-diode

Jiang Ting-Ming (姜庭明)a, Yu Xue (余雪)a b, Xu Xu-Hui (徐旭辉)a b, Zhou Da-Cheng (周大成)a b, Yu Hong-Ling (余红玲)a, Yang Peng-Hui (杨鹏辉)a, 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:2013-05-20 Revised:2013-06-14 Online:2013-12-12 Published:2013-12-12
  • Contact: Qiu Jian-Bei E-mail:qiu@kmust.edu.cn
  • About author:85.60.Jb; 78.55.Bq; 75.55.Hx
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11204113, 61265004, and 51272097), the Foundation of Application Research of Yunnan Province, China (Grant No. 2011FB022), the Chinese Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20115314120001), the Postdoctoral Science Foundation of China (Grant No. 2011M501424), and the National Basic Research Program of China (Grant No. 2011CB211708).

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摘要： A series of K3Gd1-x-y(PO4)2:xCe3+, yTb3+ phosphors are synthesized by the solid-sate reaction method. X-ray diffraction and photoluminescence spectra are utilized to characterize the structures and luminescence properties of the as-synthesized phosphors. Co-doping of Ce3+ enhances the emission intensity of Tb3+ greatly through an efficient energy transfer process from Ce3+ to Tb3+. The energy transfer is confirmed by photoluminescence spectra and decay time curves analysis. The efficiency and mechanism of energy transfer are investigated carefully. Moreover, due to the non-concentration quenching property of K3Tb(PO4)2, the photoluminescence spectra of K3Tb1-x(PO4)2:xCe3+ are studied and the results show that when x=0.11 the strongest Tb3+ green emission can be realized.

关键词: K3Gd(PO4)2：Ce3+, Tb3+, energy transfer, photoluminescence

Abstract: A series of K3Gd1-x-y(PO4)2:xCe3+, yTb3+ phosphors are synthesized by the solid-sate reaction method. X-ray diffraction and photoluminescence spectra are utilized to characterize the structures and luminescence properties of the as-synthesized phosphors. Co-doping of Ce3+ enhances the emission intensity of Tb3+ greatly through an efficient energy transfer process from Ce3+ to Tb3+. The energy transfer is confirmed by photoluminescence spectra and decay time curves analysis. The efficiency and mechanism of energy transfer are investigated carefully. Moreover, due to the non-concentration quenching property of K3Tb(PO4)2, the photoluminescence spectra of K3Tb1-x(PO4)2:xCe3+ are studied and the results show that when x=0.11 the strongest Tb3+ green emission can be realized.

Key words: K3Gd(PO4)2：Ce3+, Tb3+, energy transfer, photoluminescence

中图分类号:  (Light-emitting devices)

  • 85.60.Jb
78.55.Bq (Liquids)