中国物理B ›› 2013, Vol. 22 ›› Issue (8): 87803-087803.doi: 10.1088/1674-1056/22/8/087803

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

Enhancement of green emission by the codoping A+ (A=Li, Na, K) in Ca2BO3Cl：Tb3+ phosphor

李盼来a b c, 徐征a b, 赵谡玲a b, 张福俊a b, 王永生a b   

  1. a Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China;
    b Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China;
    c College of Physics Science & Technology, Hebei University, Baoding 071002, China
  • 收稿日期:2012-12-21 修回日期:2013-01-06 出版日期:2013-06-27 发布日期:2013-06-27
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB327704), the National Natural Science Foundation of China (Grant No. 51272022), the New Century Excellent Talents in University, China (Grant No. NCET-10-0220), the Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20120009130005), the Excellent Doctor's Science and Technology Innovation Foundation of Beijing Jiaotong University, China (Grant No. 2011YJS073), and the Fundamental Research Funds for the Central Universities (Grant No. 2012JBZ001).

Enhancement of green emission by the codoping A+ (A=Li, Na, K) in Ca2BO3Cl：Tb3+ phosphor

Li Pan-Lai (李盼来)a b c, Xu Zheng (徐征)a b, Zhao Su-Ling (赵谡玲)a b, Zhang Fu-Jun (张福俊)a b, Wang Yong-Sheng (王永生)a b   

  1. a Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China;
    b Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China;
    c College of Physics Science & Technology, Hebei University, Baoding 071002, China
  • Received:2012-12-21 Revised:2013-01-06 Online:2013-06-27 Published:2013-06-27
  • Contact: Xu Zheng E-mail:zhengxu@bjtu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB327704), the National Natural Science Foundation of China (Grant No. 51272022), the New Century Excellent Talents in University, China (Grant No. NCET-10-0220), the Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20120009130005), the Excellent Doctor's Science and Technology Innovation Foundation of Beijing Jiaotong University, China (Grant No. 2011YJS073), and the Fundamental Research Funds for the Central Universities (Grant No. 2012JBZ001).

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摘要： Tb3+-doped Ca2BO3Cl compounds with different charge compensation approaches are synthesized by a high-temperature solid-state reaction method, and the luminescent properties and Commission Internationale de l'Eclairage (CIE) chromaticity coordinates are systematically characterized. Ca2BO3Cl:Tb3+ can produce green emission under 376 nm radiation excitation. With codoped A+ (A=Li, Na, K) as charge compensators, the relative emission intensities of Ca2BO3Cl:Tb3+ are enhanced by about 1.61, 1.97, and 1.81 times compared with those of the direct charge balance, which is considered to be due to the effect of the difference in ion radius on the crystal field. The CIE chromaticity coordinates of Ca2BO3Cl:Tb3+, A+ (A=Li, Na, K) are (0.335, 0.584), (0.335, 0.585), and (0.335, 0.585), corresponding to the hues of green. Therefore, A+ (A=Li, Na, K) may be the optimal charge compensator for Ca2BO3Cl:Tb3+.

关键词: luminescence, Ca2BO3Cl：Tb3+, A+ (A=Li,Na,K)

Abstract: Tb3+-doped Ca2BO3Cl compounds with different charge compensation approaches are synthesized by a high-temperature solid-state reaction method, and the luminescent properties and Commission Internationale de l'Eclairage (CIE) chromaticity coordinates are systematically characterized. Ca2BO3Cl:Tb3+ can produce green emission under 376 nm radiation excitation. With codoped A+ (A=Li, Na, K) as charge compensators, the relative emission intensities of Ca2BO3Cl:Tb3+ are enhanced by about 1.61, 1.97, and 1.81 times compared with those of the direct charge balance, which is considered to be due to the effect of the difference in ion radius on the crystal field. The CIE chromaticity coordinates of Ca2BO3Cl:Tb3+, A+ (A=Li, Na, K) are (0.335, 0.584), (0.335, 0.585), and (0.335, 0.585), corresponding to the hues of green. Therefore, A+ (A=Li, Na, K) may be the optimal charge compensator for Ca2BO3Cl:Tb3+.

Key words: luminescence, Ca2BO3Cl：Tb3+, A+ (A=Li,Na,K)

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

  • 78.55.-m
33.50.Dq (Fluorescence and phosphorescence spectra) 33.20.Kf (Visible spectra)