| CaO-RE2O3-B2O3(RE=La,Sm,Eu,Tb)玻璃中的敏化发光 |
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| 引用本文： | 石鹏途,廉世勋,卢红林,李承志.CaO-RE2O3-B2O3(RE=La,Sm,Eu,Tb)玻璃中的敏化发光[J].湖南师范大学自然科学学报,2002,25(3):64-67. |
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| 作者姓名： | 石鹏途 廉世勋 卢红林 李承志 |
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| 作者单位： | 湖南师范大学化学化工学院,化学系,中国,长沙,410081 |
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| 基金项目： | 国家自然科学基金资助项目(20071011) |
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| 摘 要： | 在空气中采用高温固相反应合成了CaO-La2O3-B2O3-Eu2O3-Sm2O3，CaO-La2O3-B2O3-Eu2O3-Tb2O7玻璃，发现Sm^3 ，Tb^3 离子能敏化玻璃体系中Eu^3 和Eu^2 的发光。Sm^3 →Eu^3 和Sm^3 →Eu^2 离子间的能量传递过程是声子支助的共振转移；Tb^3 的敏化作用是Tb^3 离子和Eu^3 离子之间存在着电子的传递。通过调节Sm^3 ，Tb^3 和Eu^3 的掺杂浓度，可以提高CaO-La2O3-B2O3-Eu2O3玻璃体系的红/蓝光发光强度。
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| 关 键 词： | CaO－RE2O3－B2O3 La Sm Eu Tb 硼酸盐玻璃 稀土掺杂 敏化发光 高温固相反应 镧 钐 铕 铽 转光玻璃 氧化钙 氧化硼 发光强度 |
| 文章编号： | 1000-2537(2002)03-0064-04 |
| 修稿时间： | 2002年4月5日 |
Sensitized Luminescence of CaO-RE2O3-B2O3 (RE=La, Sm, Eu, Tb)Glasses |
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| SHI Peng tu,LIAN Shi xun,LU Hong lin,LI Cheng zhi.Sensitized Luminescence of CaO-RE2O3-B2O3 (RE=La, Sm, Eu, Tb)Glasses[J].Journal of Natural Science of Hunan Normal University,2002,25(3):64-67. |
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| Authors: | SHI Peng tu LIAN Shi xun LU Hong lin LI Cheng zhi |
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| Abstract: | CaO La 2O 3 B 2O 3 Eu 2O 3 Sm 2O 3,CaO La 2O 3 B 2O 3 Eu 2O 3 Tb 4O 7 glasses were prepared with the conventional high temperature process. The sensitized luminescence in the glasses doped with Sm 3+ and Eu 3+ or Tb 3+ and Eu 3+ ions have been discovered. The results show that luminescence of Eu 2+ /Eu 3+ ions were sensitized by Tb 3+ or Sm 3+ . The process of energy transfer in CaO La 2O 3 B 2O 3 Eu 2O 3 (CaLBE) glasses sensitized by Sm 3+ is resonant energy transfer supported by phonon. The sensitization of Tb 3+ to Eu 2+ and Eu 3+ luminescence was due to electron transfer from Tb 3+ to Eu 3+ . The luminescent efficiency of CaLBE glasses will improve by adjusting concentration of Sm 3+ , Tb 3+ and Eu 3+ ions. |
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| Keywords: | borate glasses rare earth sensitization luminescence |
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