| 在La_2Na_2Sr_6(PO_4)_6Br_2基质中Tb~(3+)的发光及Ce~(3+)对Tb~(3+)的敏化 |
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| 引用本文： | 宋家庆,黄竹坡. 在La_2Na_2Sr_6(PO_4)_6Br_2基质中Tb~(3+)的发光及Ce~(3+)对Tb~(3+)的敏化[J]. 高等学校化学学报, 1992, 0(8) |
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| 作者姓名： | 宋家庆 黄竹坡 |
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| 作者单位： | 北京大学化学系 北京100871(宋家庆)，北京大学化学系 北京100871(黄竹坡) |
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| 摘 要： | 用高温固相反应法合成了发光材料、研究了Tb~(3+)在La_2Na_2Sr_6(PO_4)_6Br_2基质中的光致发光性质及Ce~(3+)对Tb~(3+)的敏化作用.在254nm紫外光激发下,Tb~(3+)的发光较弱,但Ce~(3+)对Tb~(3+)有强的敏化作用,其能量传递机埋是偶极-偶极相互作用引起的共振能量传递,计算了传递效率。
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| 关 键 词： | 发光 敏化发光 稀土 碱土金属 卤磷酸盐 |
Luminescence of Tb_(3+) and Its Sensitization by Ce_(3+) in Matrix La_2Na_2Sr_6(PO_4)_6Br_2 |
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| SONG Jia-Qing,HUANG Zhu-Po. Luminescence of Tb_(3+) and Its Sensitization by Ce_(3+) in Matrix La_2Na_2Sr_6(PO_4)_6Br_2[J]. Chemical Research In Chinese Universities, 1992, 0(8) |
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| Authors: | SONG Jia-Qing HUANG Zhu-Po |
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| Abstract: | The phosphor samples were prepared by high temperature solid state reactions.Pho-toluminescence of Tb3+ ions and its sensitization by Ce3+ ions were studied systematically.Luminescence of Tb3+ excited by UV 254 nm is weak,but can be enhanced by the sensitization of Ce3+ ions.The mechanism of energy transfer from Ce3+ to Tb3+ is of resonance nature caused by dipole-dipole interaction.Efficiency of such energy transfer was calculated. |
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| Keywords: | Luminescence Sensitization luminescence Rare earth Alkaline earth metal Halophosphates |
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