| 改变Sr3MgSi2O8中Mn2+/Eu2+的比例探讨其发光性能 |
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| 引用本文： | 符楚君,胡义华,吴怀选,张磊,丘翠环.改变Sr3MgSi2O8中Mn2+/Eu2+的比例探讨其发光性能[J].韶关学院学报,2013,34(6):45-49. |
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| 作者姓名： | 符楚君 胡义华 吴怀选 张磊 丘翠环 |
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| 作者单位： | 1. 广东药学院基础学院,广东广州,510006
2. 广东工业大学物理与光电工程学院,广东广州,510006 |
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| 摘 要： | 单掺Mn2+在Sr3MgSi2O8中是不发光的,Mn2+的3d电子组态中的4T1(4G)→6A1(6S)是自旋禁阻的,对紫外光吸收很弱,所以Mn2+的红光发射依赖于Eu2+的激活,存在Eu2+对Mn2+的能量传递作用,改变Mn2+/Eu2+的比例不会使发射峰位发生变化,但Eu2+的460 nm的发光强度会随着Mn2+含量的增加而降低,且寿命会缩短.
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| 关 键 词： | 能量传递 XRD衍射 寿命 色度图 |
Luminescent properties of phosphors Sr3MgSi2O8:Mn2+, Eu2+ with different Mn2+/Eu2+ |
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| FU Chu-jun
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HU Yi-hua
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WU Huai-xuan
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ZHANG Lei
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QIU Cui-huan.Luminescent properties of phosphors Sr3MgSi2O8:Mn2+, Eu2+ with different Mn2+/Eu2+[J].Journal of Shaoguan University(Social Science Edition),2013,34(6):45-49. |
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| Authors: | FU Chu-jun HU Yi-hua WU Huai-xuan ZHANG Lei QIU Cui-huan |
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| Institution: | 1.School of Basic Courses,Guangdong Pharmaceutical University;2.School of Physics Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510006,Guangdong,China) |
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| Abstract: | Since Mn^2＋4T1（4G）→6A1（6S）spin-forbidden belongs to its 3d electronic configuration,single doped Mn^2＋in the matrix Sr3MgSi2O8 is non-luminous.Because of its weak UV absorption,the red emission belongs to Mn^2＋ depends on the activation of Eu^2＋,which results in energy transfer process.The changing ratio of Mn^2＋/Eu^2＋have no influence on the emission peak,but the emission intensity belonging to Eu^2＋ decreases gradually as Mn^2＋ content increases,also the attenuation time shortens. |
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| Keywords: | energy transfer X-ray diffraction attenuation time diagram of chromaticity |
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