Concentration quenching and resultant photoluminescence adjustment for Ca3Si2O7:Tb3+ green-emitting phosphor

被引：34
|
作者：
Mao, Zhi-yong [1 ]
Zhu, Ying-chun [1 ]
Zeng, Yi [1 ]
Gan, Lin [1 ]
Wang, Yang [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat, Shanghai 200050, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2013年 / 143卷
基金：
中国国家自然科学基金;
关键词：
Phosphor; Concentration quenching; Cross relaxation; Energy migration; LUMINESCENCE PROPERTIES; ENERGY-TRANSFER; CA PHOSPHORS; SR; DIODES; MN2+; EU2+; TB;
D O I：
10.1016/j.jlumin.2013.06.015
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Concentration quenching processes and the resulting influence on the photoluminescence properties of Ca3Si2O7:Tb3+ green-emitting phosphors are investigated in this work. Cross relaxation between activators and energy migration from activators to quenching center, are assigned to be the quenching mechanism for D-5(3) emissions and D-5(4) emissions of Tb3+ ions, respectively. Concentration quenching processes and the corresponding energy transfer are discussed in detail. The intensity ratio of the emissions from D-5(4) to that from D-5(3) is tuned by the concentration quenching processes. As a result, bluish-green, green and yellow-green emitting color is induced by concentration quenching effects for Tb3+ ions doped Ca3Si2O7 phosphors. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：587 / 591
页数：5
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