Ca2BO3Cl:Ce3+, Tb3+: A novel tunable emitting phosphor for white light-emitting diode

被引：10

作者：

Li Pan-Lai ^{[1
,2
,3
]}

Wang Yong-Sheng ^{[1
,2
]}

Zhao Su-Ling ^{[1
,2
]}

Zhang Fu-Jun ^{[1
,2
]}

Xu Zheng ^{[1
,2
]}

机构：

[1] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Inst Optoelect Technol, Beijing 100044, Peoples R China

[3] Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China

来源：

CHINESE PHYSICS B | 2012年 / 21卷 / 12期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

luminescence; phosphor; Ca2BO3Cl:Ce3+; Tb3+; energy transfer; EFFICIENT ENERGY-TRANSFER; LUMINESCENCE PROPERTIES; CE3+; PHOTOLUMINESCENCE; EU2+;

D O I：

10.1088/1674-1056/21/12/127804

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ca2BO3Cl:Ce3+, Ca2BO3Cl:Tb3+, and Ca2BO3Cl:Ce3+, Tb3+ phosphors are synthesized by a high temperature solid-state reaction. The emission intensity of Ce3+ or Tb3+ in Ca2BO3Cl is influenced by the Ce3+ or Tb3+ doping content, and the optimum concentrations of Ce3+ and Tb3+ are 0.03 mol and 0.05 mol, respectively. The concentration quenching effect of Ce3+ or Tb3+ in Ca2BO3Cl occurs, and the concentration quenching mechanism is d-d interaction for either Ce3+ or Tb3+. The Ca2BO3Cl:Ce3+, Tb3+ can produce colour emission from blue to green by properly tuning the relative ratio between Ce3+ and Tb3+, and the emission intensity of Tb3+ in Ca2BO3Cl can be enhanced by the energy transfer from Ce3+ to Tb3+. The results indicate that Ca2BO3Cl:Ce3+, Tb3+ may be a promising double emission phosphor for UV-based white light emitting diodes.

引用

页数：6

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