Long lasting yellow phosphorescence and photostimulated luminescence in Sr3SiO5:Eu2+ and Sr3SiO5:Eu2+, Dy3+ phosphors

被引：67

作者：

Sun, Xiaoyuan ^{[1
,2
]}

Zhang, Jiahua ^{[1
]}

Zhang, Xia ^{[1
]}

Luo, Yongshi ^{[1
]}

Wang, Xiao-Jun ^{[1
,3
]}

机构：

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

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

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

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2008年 / 41卷 / 19期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1088/0022-3727/41/19/195414

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the observation of long lasting yellow phosphorescence and photostimulated luminescence (PSL) in Sr(3)SiO(5):Eu(2+) and Sr(3)SiO(5):Eu(2+), Dy(3+) phosphors. The decay patterns of phosphorescence and thermoluminescence curves demonstrate that introduction of Dy(3+) into Sr(3)SiO(5):Eu(2+) can generate a large number of shallow traps and deep traps. The generated deep traps prolong the phosphorescence up to 6 h after UV irradiation. The PSL is studied under 808 nm excitation. Slow rising and falling edges of the emission in Sr(3)SiO(5):Eu(2+), Dy(3+) are observed, showing a retrapping process by the generated shallow traps due to co-doping Dy(3+).

引用

页数：4

共 14 条

[1] OPTICAL AND ELECTRICAL PROPERTIES OF SRAL2O4-EU2+ [J].