Luminescent and Long-Lasting Properties of Cd3Al2Ge3O12:Mn2+ Phosphor

被引：2

作者：

Yang Yang ^{[1
]}

Cong Yan ^{[1
,2
]}

Xiao Yu ^{[1
]}

Fu Yue ^{[1
]}

Xia Sheng-Qiang ^{[1
]}

Dong Bin ^{[1
,2
]}

机构：

[1] Dalian Nationalities Univ, Sch Phys & Mat Engn, Dalian 11660, Liaoning, Peoples R China

[2] Liaoning Key Lab Optoelect Films & Mat, Dalian 11660, Liaoning, Peoples R China

来源：

CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2015年 / 31卷 / 08期

关键词：

long-lasting luminescence; Mn2+ ion; energy transfer;

D O I：

10.11862/CJIC.2015.207

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Cd3Al2Ge3O12:Mn2+ afterglow phosphors were synthesized by the conventional solid-state reaction in this work, and the enhanced afterglow properties were observed with Zr4+ ions co-doping. The Cd3Al2Ge3O12:Mn2+, Zr4+ phosphors were characterized by using XRD, photoluminescence and thermoluminescence spectroscopy. The emission spectrum shows a broad emission band from 500 to 700 nm which is assigned to the T-4(1)((4)G)->(6)A(1)(S-6) transitions of Mn2+ ion. An energy transfer from the Cd3Al2Ge3O12 host to Mn2+ ions was observed. The center and the profile of the emission remain unchanged when co-doped with Zr4+ ions, but the introduction of Zr4+ ions improved the afterglow duration. Thermoluminescence spectra indicated that the introduction of Zr4+ into the host produces traps with suitable depth, resulting in the enhanced phosphorescence of Mn2+.

引用

页码：1529 / 1533

页数：5

共 15 条

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