钼酸盐Na5TbxEu1—x(MoO4)4的发射光谱研究 |
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引用本文: | 姚连增. 钼酸盐Na5TbxEu1—x(MoO4)4的发射光谱研究[J]. 中国激光, 1996, 23(5): 413-416 |
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作者姓名: | 姚连增 |
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作者单位: | 姚连增:中国科学技术大学材料系,合肥 230026
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摘 要: | 测定了室温下Na5TbxEu1-x(MoO4)4的发射光谱。发现随x的增加,Tb^3+离子546nm(^5D4→^7F5)的荧光发射亦随这增加。同时观察到,当x>0.7时,发光相对强度变化会出现突变。
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关 键 词: | 钼酸盐 发射光谱 激光材料 |
收稿时间: | 1995-06-26 |
Investigation on the Emission Spectrum of Molybdenate Na5TbxEu1-x(MoO4)4 |
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Abstract: | The emission spectrum as a function of Tb3+ ion concentration in molyboenate Na5TbxEul-x(MoO4)4 has been measured at room temperature. The experimental resultsshow that fluorescence emission of Tb3+ ion at 546 nm (5D4→7F5) increases with the Xcontent. At the same time,it is observed that the energy distribution of the emissionspectrum and the luminous brightness change and a sudden change in luminous intensityappeares when x>0.7.The change of luminescence intesity can be explained by energytransfer in a radiationless resonance process between the energy levels 5D3 and 5D4 of Tb3+ ion. |
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Keywords: | emission spectrum of Tb3+ ion energy transfer by radiationless resonance |
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