Cd3Al2Ge3O12:Mn2+磷光体的发光和长余辉性能

引用本文: 杨扬, 丛妍, 肖宇, 付悦, 夏胜强, 董斌. Cd₃Al₂Ge₃O₁₂:Mn²⁺磷光体的发光和长余辉性能[J]. 无机化学学报, 2015, 31(8): 1529-1533. doi: 10.11862/CJIC.2015.207 shu

Citation: YANG Yang, CONG Yan, XIAO Yu, FU Yue, XIA Sheng-Qiang, DONG Bin. Luminescent and Long-Lasting Properties of Cd₃Al₂Ge₃O₁₂:Mn²⁺ Phosphor[J]. Chinese Journal of Inorganic Chemistry, 2015, 31(8): 1529-1533. doi: 10.11862/CJIC.2015.207 shu

Cd₃Al₂Ge₃O₁₂:Mn²⁺磷光体的发光和长余辉性能

杨扬 ^1, ,
丛妍 ^{1,2,
,} ,
肖宇 ^1, ,
付悦 ^1, ,
夏胜强 ^1, ,
董斌 ^{1,2,
,}

1.
1. 大连民族大学物理与材料工程学院, 大连 116600;
2.
2. 辽宁省光电薄膜材料重点实验室, 大连 116600

通讯作者: 丛妍,E-mail:congyan@dlnu.edu.cn;董斌,E-mail:dong@dlnu.edu.cn; 丛妍,E-mail:congyan@dlnu.edu.cn;董斌,E-mail:dong@dlnu.edu.cn

基金项目:
国家自然科学基金(No.61205178,11274057,11474046) (No.61205178,11274057,11474046)

辽宁省博士启动基金(No.20121073) (No.20121073)

大连市金州新区科技计划项目(No.2012-A1-051) (No.2012-A1-051)

中央高校基本科研业务费专项资金(No.DC201502080302,DC201502080203) (No.DC201502080302,DC201502080203)

大连民族学院大学生创新创业训练计划(No.X201413257)资助项目。 (No.X201413257)

摘要: 采用传统的高温固相法合成了Cd₃Al₂Ge₃O₁₂:Mn²⁺长余辉发光材料,利用X射线粉末衍射仪、荧光光谱仪、热释光谱计量仪等手段对粉末样品进行了表征。研究了以Zr⁴⁺离子作为辅助激活剂离子,对发光材料Cd₃Al₂Ge₃O₁₂:Mn²⁺余辉性能的影响。分析结果表明,样品位于500~700 nm的黄光宽带发射峰源于Mn²⁺的⁴T₁(⁴G)→⁶A₁(⁶S)跃迁发射结果。并且观察到了由Cd₃Al₂Ge₃O₁₂基质向激活剂离子Mn²⁺的能量传递。共掺杂Zr⁴⁺离子后样品发射峰位没有明显变化,但是余辉亮度衰减曲线表明适量的Zr⁴⁺离子掺杂可延长Cd₃Al₂Ge₃O₁₂:Mn²⁺的余辉时间。通过对热释光谱的分析,解释了双掺杂荧光粉余辉性能增强的原因,Zr⁴⁺的掺杂在材料中引入了深度更为合适的缺陷陷阱,可有效存储光能,增强余辉的时间和强度。

关键词:

长余辉发光;锰离子;能量传递

English

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

YANG Yang ^1, ,
CONG Yan ^{1,2,
,} ,
XIAO Yu ^1, ,
FU Yue ^1, ,
XIA Sheng-Qiang ^1, ,
DONG Bin ^{1,2,
,}

1.
1. School of Physics & Materials Engineering, Dalian Nationalities University, Dalian, Liaoning 11660, China;
2.
2. Liaoning Key Laboratory of Optoelectronic Films and Materials, Dalian, Liaoning 11660, China

Corresponding author: 丛妍,E-mail:congyan@dlnu.edu.cn;董斌,E-mail:dong@dlnu.edu.cn; 丛妍,E-mail:congyan@dlnu.edu.cn;董斌,E-mail:dong@dlnu.edu.cn

Received Date: 24 January 2015
Fund Project:
国家自然科学基金(No.61205178,11274057,11474046)

辽宁省博士启动基金(No.20121073)

大连市金州新区科技计划项目(No.2012-A1-051)

中央高校基本科研业务费专项资金(No.DC201502080302,DC201502080203)

大连民族学院大学生创新创业训练计划(No.X201413257)资助项目。

Abstract: 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 ⁴T₁(⁴G)→⁶A₁(⁶S) 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⁺.

Key words:

long-lasting luminescence;Mn²⁺ ion;energy transfer

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Cd₃Al₂Ge₃O₁₂:Mn²⁺磷光体的发光和长余辉性能

通讯作者: 丛妍,E-mail:congyan@dlnu.edu.cn;董斌,E-mail:dong@dlnu.edu.cn; 丛妍,E-mail:congyan@dlnu.edu.cn;董斌,E-mail:dong@dlnu.edu.cn

English

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

Corresponding author: 丛妍,E-mail:congyan@dlnu.edu.cn;董斌,E-mail:dong@dlnu.edu.cn; 丛妍,E-mail:congyan@dlnu.edu.cn;董斌,E-mail:dong@dlnu.edu.cn

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