| Preparation and Luminescence Properties of the New Long Phosphorescent Phosphors Ba1-x Cax Al2O4 ： Eu^2＋ , Dy^3＋ |
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| 引用本文： | 李少霞,何大伟,成正维,刘春棠,刘端阳,康凯,邓朝勇.Preparation and Luminescence Properties of the New Long Phosphorescent Phosphors Ba1-x Cax Al2O4 ： Eu^2＋ , Dy^3＋[J].中国稀土学报(英文版),2004,22(1):129-132. |
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| 作者姓名： | 李少霞 何大伟 成正维 刘春棠 刘端阳 康凯 邓朝勇 |
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| 作者单位： | KeyLabofMaterialsforInformationStorageandDisplay,InstituteofOptoelectronicTechnology,BeijingJiaoTongUniversity,Beijing100044,China |
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| 摘 要： | New long phosphorescent phosphors Ba1-x CaxAl2O4:Eu^2 , Dy^3 with tunable color emission were prepared and studied. The emission spectra show that the tuning range of the color emission of the phosphors is between 498 and 440 nm, which is dependent on x, under the excitation of UV. The wavelength of the afterglow increases with the increasing of x until x equals 0.6. The XRD patterns show that the single phase limit in the phosphors is below x value of 0.4.The Thermolumineseence spectra were measured to investigate the traps created by the doping of Dy^3 .
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| 关 键 词： | Ba1-xCaxAl2O4：Eu^2＋ 镝 掺杂 荧光材料 制备 发光性能 稀土 长余辉 XRD |
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