Luminescence properties and energy transfer in Ba2Y(BO3)2Cl:Ce3+,Tb3+ phosphors

被引：26

作者：

Sun, J. ^{[1
]}

Lai, J. ^{[1
]}

Xia, Z. ^{[2
]}

Zhang, X. ^{[1
]}

Liu, H. ^{[2
]}

Du, H. ^{[1
]}

机构：

[1] Beijing Technol & Business Univ, Sch Sci, Beijing 100048, Peoples R China

[2] China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2012年 / 107卷 / 03期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

EMISSION-TUNABLE PHOSPHOR; CE3+;

D O I：

10.1007/s00340-012-4961-5

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Novel green-emitting Ba2Y(BO3)(2)Cl:Ce3+,Tb3+ phosphors were synthesized by a solid-state method. X-ray diffraction and photoluminescence spectra were utilized to characterize the structures and luminescence properties of the as-synthesized phosphors, respectively. Ba2Y(BO3)(2)Cl:Ce3+,Tb3+ phosphors exhibit blue and green emission bands under the excitation of near-ultraviolet light. An asymmetric blue emission originates from the Ce3+ ion, whereas the green emission originates from the Tb3+ ion. A spectral overlap is found between the emission band of the Ce3+ ion and the excitation band of the Tb3+ ion, which supports the occurrence of the energy transfer from the Ce3+ ion to the Tb3+ ion. Meanwhile, the energy transfer is thoroughly investigated by their photoluminescence decay behaviors. The energy-transfer efficiency from the Ce3+ ion to the Tb3+ ion is also calculated, and a possible mechanism is proposed.

引用

页码：827 / 831

页数：5

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