| 铕(Ⅲ)激活的磷酸镧发光性质研究 |
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| 引用本文： | 周济,苏勉曾.铕(Ⅲ)激活的磷酸镧发光性质研究[J].高等学校化学学报,1993,14(3):314-316. |
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| 作者姓名： | 周济 苏勉曾 |
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| 作者单位： | 北京大学化学系, 北京 100871 |
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| 摘 要： | LaPO4:Eu3+的发射光谱包含较强的Eu3+5Do→7F1跃迁发射和较弱的6D1→7F1跃迁发射。主发射峰583nm,对应于Eu3+5Do→7F1跃迁.通过对Eu3+的两种跃迁发射强度及荧光寿命和Eu3+浓度关系的测定和理论分析,探讨了发光中心Eu3+离子同的交叉弛豫和能量迁移机理。
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| 关 键 词： | 磷酸镧铕 发光 能量传递 交叉弛豫 |
| 收稿时间： | 1992-09-15 |
Studies on the Luminescene of Eu~(3+)-doped Lanthanum Phosphate |
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| ZHOU Ji,SU Mian-Zeng.Studies on the Luminescene of Eu~(3+)-doped Lanthanum Phosphate[J].Chemical Research In Chinese Universities,1993,14(3):314-316. |
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| Authors: | ZHOU Ji SU Mian-Zeng |
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| Institution: | Department of Chemistry, Peking University, Beijing, 100871 |
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| Abstract: | Emission spectrum of Eu3+-doped lanthanum phosphate consists of strong emission of Eu3+ 5Do→7F1transitions and weak emission of Eu3+5Do→7F1transitions.The main peak of 583 nm is originated from 5Do→7F1 transition.According to the Eu-concentration dependence of the emission intensity and fluorescence life-time of these two types of transition, the mechanism of cross-relaxation and energy transfer between Eu3+ions have been investigated. |
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| Keywords: | Lanthanum europium phosphate Luminescence Energy transfer Cross-relaxation |
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