| Pr~(3+)/Tm~(3+)共掺LaOF纳米体系中能量转移的光谱学研究 |
| |
| 引用本文： | 张喜生,雷瑜,何恩节,朱刚强,伏振兴,郑海荣.Pr~(3+)/Tm~(3+)共掺LaOF纳米体系中能量转移的光谱学研究[J].陕西师范大学学报,2010(3). |
| |
| 作者姓名： | 张喜生 雷瑜 何恩节 朱刚强 伏振兴 郑海荣 |
| |
| 作者单位： | 陕西师范大学物理与信息技术学院; |
| |
| 基金项目： | 国家自然科学基金资助项目(10875075); 陕西省自然科学基金资助项目(SJ08-ZT13) |
| |
| 摘 要： | 在较低温度下,利用水热法和溶剂热法两种不同方法,分别制备了Pr3+/Tm3+共掺的六方相和四方相晶体结构LaOF纳米颗粒.在波长为355nm激光激发下,研究了LaOF∶Pr3+/Tm3+共掺纳米体系中Tm3+离子到Pr3+离子的能量转移效应,以及由此产生的Pr3+的荧光辐射.运用光谱学方法对共掺纳米体系荧光辐射性质进行了分析,并对相应的能量转移机理进行了探讨.结果表明:从Tm3+到Pr3+的能量转移源于Tm3+的1D2-3F4与Pr3+的3H4-3P0之间的交叉弛豫.同时,分析讨论了制作方法、样品环境温度、掺杂浓度等因素对能量转移效率和荧光光谱性质所产生的影响.
|
| 关 键 词： | 能量转移 交叉弛豫 荧光辐射 稀土离子 纳米晶体 |
Spectroscopic study of the energy transfer effect in Pr~(3+)/Tm~(3+) co-doped with LaOF nanocrystals system |
| |
| ZHANG Xi-sheng,LEI Yu,HE En-jie,ZHU Gang-qiang,FU Zhen-xing,ZHENG Hai-rong.Spectroscopic study of the energy transfer effect in Pr~(3+)/Tm~(3+) co-doped with LaOF nanocrystals system[J].Journal of Shaanxi Normal University: Nat Sci Ed,2010(3). |
| |
| Authors: | ZHANG Xi-sheng LEI Yu HE En-jie ZHU Gang-qiang FU Zhen-xing ZHENG Hai-rong |
| |
| Institution: | ZHANG Xi-sheng,LEI Yu,HE En-jie,ZHU Gang-qiang,FU Zhen-xing,ZHENG Hai-rong(College of Physics , Information Technology,Shaanxi Normal University,Xi\'an 710062,Shaanxi,China) |
| |
| Abstract: | Hexagonal and tetragonal LaOF nanocrystals co-doped with Pr3+ and Tm3+ ions were synthesized at lower temperatures with hydrothermal and solvothermals techniques. By pumping Tm3+ ions with 355 nm Laser in Tm3+ and Pr3+ co-doped with LaOF nanoparticles,the energy transfer effect from Tm3+ to Pr3+ and the fluorescence emission of Pr3+ were studied. The luminescence properties and the mechanism of the energy transfer were investigated with laser spectroscopic method. The results showed that the energy transfer... |
| |
| Keywords: | energy transfer cross relaxation fluorescence emission rare earth ions nanocrystals |
| 本文献已被 CNKI 等数据库收录！ |
|
