Enhancement of red fluorescence and afterglow in CaTiO3: Pr3+ by addition of LU2O3

被引：66

作者：

Zhang, Xianmin

Zhang, Jiahua

Zhang, Xia

Chen, Li

Lu, Shaozhe

Wang, Xiao-Jun

机构：

[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130033, Peoples R China

[2] Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA

[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2007年 / 122卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Pr3+; red phosphor; red afterglow;

D O I：

10.1016/j.jlumin.2006.01.337

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

CaTiO3:Pr3+ with addition Lu2O3 are synthesized by conventional solid-state reaction methods. It is found that the addition of Lu leads to the enhancement of red fluorescence and phosphorescence at 615 nm originating from D-1(2)-> H-3(4) transition of Pr3+ following the increase of the lifetime for the D-1(2) state. As a result, it is indicated that the non-radiative centers for the D-1(2) state are suppressed by the addition of Lu ions. The persistent time of the afterglow is observed to increase from less than 15 min to over 2 h after the addition of 5 mol% Lu2O3. A tentative mechanism of the Lu-addition effect on the optical properties is discussed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：958 / 960

页数：3