| γ射线对La0.96Tb0.01Dy0.03BO3荧光粉发光性能影响？… |
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| 引用本文： | 田军,齐尚奎,杨晓鸿,金祺新,王齐祖,薛群基.γ射线对La0.96Tb0.01Dy0.03BO3荧光粉发光性能影响？…[J].辐射研究与辐射工艺学报,2000,18(1):52-56. |
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| 作者姓名： | 田军 齐尚奎 杨晓鸿 金祺新 王齐祖 薛群基 |
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| 作者单位： | 中国科学院兰州化学物理研究所固体润滑开放研究实验室,兰州,730000,兰州大学材料科学系,兰州,730000,兰州辐射技术开发中心,兰州,730050 |
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| 摘 要： | 采用高温固相扩散法合成了La0.96 Tb0.01 Dy0.03BO3荧光粉,用X射线粉末衍射及光电子能谱法等研究了γ射线辐照对其发光性能的影响.氧化物中的Tb3+与Dy3+离子转变成硼酸盐形态后,其4d电子结合能发生变异,Tb3+、Dy3+离子4d电子结合能趋于一致.在1.5104Gy辐照时, La0.96 Tb0.01 Dy0.03BO3荧光粉的发光强度增至最大.γ射线辐照使La0.96 Tb0.01 Dy0.03BO3晶粒细化和Tb3+、Dy3+离子4d电子结合能峰面积改变,结合能峰面积的变化与辐照剂量对发光强度的影响结果是一致的.
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| 关 键 词： | 稀土硼酸盐荧光粉 γ射线辐照 发光性能 |
r-ray IRRADIATION EFFECT ON THE LUMINESCENCE OF La_(0.96) Tb_(0.01) Dy_(0.03) BO_3 |
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| TIAN Jun,QI Shangkui,YANG Xiaohong,JIN Qixin,WANG Qizu,XUE Qunji.r-ray IRRADIATION EFFECT ON THE LUMINESCENCE OF La_(0.96) Tb_(0.01) Dy_(0.03) BO_3[J].Journal of Radiation Research and Radiation Processing,2000,18(1):52-56. |
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| Authors: | TIAN Jun QI Shangkui YANG Xiaohong JIN Qixin WANG Qizu XUE Qunji |
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| Abstract: | Lap_0.96 Tb_0.01 Dy_0.03 BO_3 luminophor is sythetized using high temperature solid phase. The luminesence of La_0.96 Tb_0.01 Dy_0.03 BO_3 by r-ray irradiation was briefly studied. Tb~3+. Dy~3+ 4d electron binding energy in La_0.96 Tb_0.01 Dy_0.03 BO_3 was close to 161.0eV, and Tb~3+. Dy~3+ 4d binding energy peak areas changed with tile change of irradiation doses. At 1.5 x 10~4Gy dose, La_O.96 Tb_0.01 Dy_0.03 BO_3 has the maxim value of luminous intensity. |
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| Keywords: | La_(0 96) Tb_(0 01) Dy_(0 03) BO_3 r-ray irradiation Luminescence |
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