| Effect of Ho^3＋ Ion on Luminescent Property of CaGaeS4：Eu^2＋ |
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| 引用本文： | GuoChongfeng ZhangChunxiang LǘYuhua TangQiang.Effect of Ho^3＋ Ion on Luminescent Property of CaGaeS4：Eu^2＋[J].中国稀土学报(英文版),2004,22(5):614-614. |
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| 作者姓名： | GuoChongfeng ZhangChunxiang LǘYuhua TangQiang |
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| 作者单位： | [1]StateKeyLabora-toryofOptoelectronicMaterialsandTechnologies,SchoolofChemistryandChemicalEngineering [2]DepartmentofPhysics,SunYat-senUniversity,Guangzhou510275,China |
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| 摘 要： | The afterglow luminescent property and thermo-luminescence (TL) of CaGa2S4：Eu^2 , Ho^3 were systemateally investigated. The afterglow of Eu and Ho Co-doped CaGa2S4 shows a broadband emission at 552 nm, which is the same as that of Eu doped CaGa2S4 only. And the decay behavior of CaGa2S4 Eu^2 , Ho^3 was investigated, which shows that CaGa2S4: Eu^2 , Ho^3 is a phosphor with long after-glow, whereas the CaGazS4:Eu^2 is a phosphor with-out long afterglow. Comparison of TL curves and 3D-TL emission spectra of CaGa2S4:Eu^2 ,Ho^3 and Ca-C, a2S4:Eu^2 show that a new trap center is produced at about 80℃, which is the basic reason of CaGazS4:Eu^2 ,Ho^3 with long afterglow.
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| 关 键 词： | 钬离子 余辉发光性质 CaGa2S4 发光学 稀土元素 |
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