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

页码：587 / 591

页数：5

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