| LaOX-Pr^3^+(X=Cl, Br)体系的荧光特性及其配位场理论解析 |
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| 引用本文： | 杨频,李思殿,王越奎.LaOX-Pr^3^+(X=Cl, Br)体系的荧光特性及其配位场理论解析[J].化学学报,1991,49(1):3-9. |
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| 作者姓名： | 杨频 李思殿 王越奎 |
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| 作者单位： | 山西大学分子科学研究所.太原(030006) |
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| 摘 要： | LaOX-Pr^3^+(X=Cl,Br)体系在室温和液氮温度下均只观察到^3P~0能级的发射,其原因在于Pr^3^+离子的4f5d激发态具有较高能量(>37kK),且^3P~2,^3P~1向^3P~0存在有效的电子驰豫;本文基于DSCPCF配位场模型的计算结果,对该体系的发射光谱和激发光谱进行了理论归属,实测峰位与计算值较好吻合。
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| 关 键 词： | 解析 配位场理论 荧光特性 磷光体 稀土 发射 能级 驰豫 激发光谱 发射光谱 |
The characteristics and theoretical analysis of the fluorescence spectra of LaOX-Pr^3^+ phosphors |
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| Institution: | Shanxi Univ., Inst of Mol Sci.Taiyuan(030006) |
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| Abstract: | The excitation and fluorescence spectra of LaOX-Pr^3^+(X=Cl, Br) phosphors were measured at room and liquid nitrogen temperatures. The characteristics of the spectra were interpreted and most of the observed f-f transitions were assigned based on the theoretical energy levels of Pr^3^+ calculated by the Double Sphere Coordination Point Charge Field model. The agreement between the calculated and the observed transition wavelengths is generally good. |
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| Keywords: | ANALYTIC LIGAND FIELD THEORY FLUORESCENCE CHARACTERISTIC PHOSPHOR RARE EARTH EMISSION ENERGY LEVELS RELAXATION EXCITATION SPECTRUM EMISSION SPECTRA |
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