| Ca5(PO4)3Cl中铕和铽间的电子转移 |
| ELECTRON TRANSFER BETWEEN Eu AND Tb IN Ca5(PO4)3Cl MATRIX |
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| 摘要: 本文通过对铕和铽在Ca5(PO4)3Cl基质中的发光特征的研究，发现铕和铽之间存在着电子转移现象，并对其反应机理进行了探讨。Eu3+(4f6)和Tb3+(4f8)通过电子转移使它们达到电子结构稳定的Eu2+(4f7)和Tb4+(4f< |
| 关键词: 铕 铽 电子转移 光致发光 |
| 基金项目: |
| Abstract: The luminescent properties of europium and terbium in Ca5(PO4)3Cl matrix have been studied, and we find that an electron transfer takes place between Eu3+ and Tb3+ ions: Eu3+(4f6)+Tb3+(4f8)→Eu2+(4f7)+Tb4+(4f7). We have investigated the reaction mechanism. Eu3+ and Tb3+ ions tend to transfer an electron to get their more stable configuration-Eu2+(4f7) and Tb4+(4f7) ions. When Eu3+ and Tb3+ ions are codoped in Ca5(PO4)3Cl matrix, the emission spectra of Eu2+, Eu3+ and Tb3+ ions are all observed under 254 nm excitation. We proposed a new method to synthesize a new trichromatic lamp phosphor that europium and terbium are codoped in only one matrix. |
| Keywords: europium terbium electron transfer photoluminescence |
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| 高勇,吴志云,石春山.Ca5(PO4)3Cl中铕和铽间的电子转移[J].无机化学学报,1998,14(2):190-193. |
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