| 掺杂铕和铽的卤硼酸盐荧光体的制备及光谱特征 |
| |
| 引用本文： | 莫凤珊,刘晓瑭,石春山. 掺杂铕和铽的卤硼酸盐荧光体的制备及光谱特征[J]. 高等学校化学学报, 2007, 28(8): 1519-1522 |
| |
| 作者姓名： | 莫凤珊 刘晓瑭 石春山 |
| |
| 作者单位： | 湛江师范学院生命科学与化学学院,湛江,524048;华南农业大学理学院,广州,510642;中国科学院长春应用化学研究所稀土化学与物理开放实验室,长春,130022 |
| |
| 基金项目： | 国家自然科学基金 , 华南农业大学校科研和教改项目 |
| |
| 摘 要： | 采用高温固相法在空气中合成了一系列掺杂稀土离子的卤硼酸盐荧光体, 研究了其发光性质和基质组成对稀土离子共掺杂的荧光体发光性质的影响. 研究结果表明, 在Eu3+和Tb3+共掺杂的体系中存在电子转移, 因此出现了Eu3+, Eu2+和 Tb3+共存于同一基质共同发射的现象. Ce3+对Eu2+和Tb3+具有敏化作用, 可增强其发射强度. 基质的组成对稀土离子的发射峰位和发射强度有明显影响.
|
| 关 键 词： | 高温固相合成 光谱特征 电子转移 能量传递 |
| 文章编号： | 0251-0790（2007）08-1519-04 |
| 收稿时间： | 2007-03-02 |
| 修稿时间： | 2007-03-02 |
Preparation and Luminescent Properties of Rare Earth Ions in M2B5O9Cl:Re(M=Ca,Sr,Ba;Re=Eu,Tb) |
| |
| MO Feng-Shan,LIU Xiao-Tang,SHI Chun-Shan. Preparation and Luminescent Properties of Rare Earth Ions in M2B5O9Cl:Re(M=Ca,Sr,Ba;Re=Eu,Tb)[J]. Chemical Research In Chinese Universities, 2007, 28(8): 1519-1522 |
| |
| Authors: | MO Feng-Shan LIU Xiao-Tang SHI Chun-Shan |
| |
| Affiliation: | 1. College of Life Science and Chemistry, Zhanjiang Normal College, Zhanjiang 524048, China; 2. College of Sciences, South China Agricultural University, Guangzhou 510642, China; 3. State Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China |
| |
| Abstract: | M2B5O9X∶Re(M=Ca, Sr, Ba; X=Cl, Br; Re=Eu, Tb) phosphors were synthesized via solid state method. The products were characterized with X-ray powder diffraction and luminescence spectrometer. The luminescent properties as well as the influences of the matrix composition and other doping ions on the luminescence of the rare earth ions of the co-doped phosphors were investigated. The coexistence of Eu3+, Eu2+and Tb3+ were observed in these matrices. The phenomenon may be explained by the electron transfer theory. The sensitization of Ce3+ ion improves the intensity of emission of Eu2+ and Tb3+. The competition between electron transfer among conjugate rare earth ions and energy migration might be the reasons for the observation. We predict a novel trichromatic phosphor co-doped with Eu3+-Tb3+ in M2B5O9X. |
| |
| Keywords: | Solid state synthesis at high temperature Luminescence character Electronic transport Energy migration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
|
点击此处可从《高等学校化学学报》下载全文 |
|
