| 温度对长余辉发光玻璃发光性能的影响 |
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| 引用本文： | 吕昊,刘爱梅,熊平凡,易熙农,张希艳.温度对长余辉发光玻璃发光性能的影响[J].发光学报,2009,30(4):554-558. |
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| 作者姓名： | 吕昊 刘爱梅 熊平凡 易熙农 张希艳 |
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| 作者单位： | 1. 孝感学院 物理系, 湖北 孝感 432000;2. 长春理工大学 材料系, 吉林 长春 130022 |
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| 基金项目： | 湖北省教育厅科研项目(Q200726002)资助 |
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| 摘 要： | 在还原气氛下, 制备了稀土Eu2O3 , Dy2O3掺杂的铝硅酸盐长余辉发光玻璃。分析了不同温度对SrAl2O4 : Eu, Dy发光玻璃的余辉发光的影响,比较了SrAl2O4 : Eu和SrAl2O4 : Eu, Dy发光玻璃的余辉发光的时间积分强度。结果表明:SrAl2O4 : Eu, Dy长余辉发光玻璃的发射光谱存在455,515 nm两个发射峰值,并且其余辉衰减正比于t-0.8。SrAl2O4 : Eu, Dy长余辉发光玻璃余辉发光时间积分强度在150 K附近开始增加,并在275 K达到最大;Dy3+离子是造成空穴陷阱的主要原因。
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| 关 键 词： | 长余辉发光玻璃 时间积分强度 余辉衰减 |
| 收稿时间： | 2008-04-14 |
Temperature Impact on Luminescence Performances of Long-lasting Afterglow Glass |
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| LU Hao,LIU Ai-mei,XIONG Ping-fan,YI Xi-nong,ZHANG Xi-yan.Temperature Impact on Luminescence Performances of Long-lasting Afterglow Glass[J].Chinese Journal of Luminescence,2009,30(4):554-558. |
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| Authors: | LU Hao LIU Ai-mei XIONG Ping-fan YI Xi-nong ZHANG Xi-yan |
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| Institution: | 1. Department of Physics, Xiaogan University, Xiaogan 432000, China;2. Department of Material, Changchun University of Science and Technology, Changchun 130022, China |
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| Abstract: | A series of luminosilicate glass samples doped with Eu2+ and Dy3+ were prepared under reducing atmosphere. The impacts of temperatures on luminescence performances of long-lasting afterglow glass were analyzed. The time-integrated intensities of afterglow in SrAl2O4 : Eu and SrAl2O4 : Eu,Dy long-lasting afterglow glasses were compared. Results showed the emission spectra have two broad bands peaked at 455 and 515 nm and the afterglow decay is in proportion to t-0.8. The time-integrated intensity of afterglow increases at around the temperature of 150 K, and reaches the maximum at around 275 K. The hole traps originate from Dy3+ ions. |
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| Keywords: | long-lasting afterglow glass time-integrated intensity afterglow decay |
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