| Ca8Mg(SiO4)4Cl2中Ce3+和Eu2+的光谱性质和能量传递 |
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| 引用本文： | 林海,林久令,刘行仁.Ca8Mg(SiO4)4Cl2中Ce3+和Eu2+的光谱性质和能量传递[J].光谱学与光谱分析,1998,18(6):645-648. |
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| 作者姓名： | 林海 林久令 刘行仁 |
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| 作者单位： | 1. 中国科学院长春物理研究所,130021,长春
2. 中国科学院激发态物理开放实验室,130021,长春 |
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| 摘 要： | 首次合成了Ｃｅ＾３＋和Ｅｕ＾２＋共激活氯硅酸镁钙Ｃａ８Ｍｇ（ＳｉＯ４）４Ｃｌ２：Ｃｅ＾３＋，Ｅｕ＾２＋高效绿色荧光粉，报道了它们的漫反射光谱、激发和发射光，观察到氯硅酸镁钙中Ｃｅ＾３＋ Ｅｕ＾２＋
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| 关 键 词： | 氯硅酸镁钙 光谱性质 敏化剂 铈 绿色 荧光粉 铕 |
SPECTRAL PROPERTIES AND ENERGY TRANSFER OF Ce3+AND Eu2+ IONS IN Ca8Mg(SiO4)4Cl2 |
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| LIN Hai,LIN Jiuling,LIU Xingren.SPECTRAL PROPERTIES AND ENERGY TRANSFER OF Ce3+AND Eu2+ IONS IN Ca8Mg(SiO4)4Cl2[J].Spectroscopy and Spectral Analysis,1998,18(6):645-648. |
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| Authors: | LIN Hai LIN Jiuling LIU Xingren |
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| Institution: | Changchun Institute of Physics, Chinese Academy of Sciences, 130021 Changchun. |
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| Abstract: | Ce3+ and Eu2+ codoped calcium magnesium chlorosilicate Ca8Mg(SiO4)4Cl2 (CMSC) was synthesized for the first time. The diffuse reflection spectra,excitation and emission spectra of CMSC : Ce3+, Eu2+ were measured and studied. Due to the good overlap between the Ce3+ emission bands and Eu2+ excitation bands, the energy transfer between Ce3+ and Eu2+ ions is expected to be very efficient and is confirmed by the emission spectra of CMSC : Ce3+, Eu2+ system. The fluoresence lifetime of Ce3+ in CMSC : 0.006Ce3+ and CMSC : 0.006Ce3+, 0.03Eu2+ was determined to be 30.1 and 17.2ns,respectively. By the calculation,the probability of energy transfer from Ce3+ to Eu2+ (PSA) is 2.49 x 10(7)/s and energy transfer efficiency (eta(SA)) is 42.9%. |
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| Keywords: | Ce 3+ and Eu 2+ ions Calcium magnesium chlorosilicate Spectra Sensitization Energy transfer |
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