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| 稀土纳米发光材料的燃烧法制备及光谱性质 | |
| 引用本文： | 常建军,黄世华,彭洪尚,孟春霞,由芳田,吕少哲,孙聆东.稀土纳米发光材料的燃烧法制备及光谱性质[J].光谱学与光谱分析,2006,26(2):231-234. |
| 作者姓名： | 常建军 黄世华 彭洪尚 孟春霞 由芳田 吕少哲 孙聆东 |
| 作者单位： | 1. 北京交通大学光电子技术研究所,发光与光信息技术教育部重点实验室,北京,100044 2. 中国科学院激发态物理重点实验室,吉林,长春,130021 3. 北京大学稀土材料化学及应用国家重点实验室,北京,100871 |
| 摘 要： | 用燃烧法制备了不同粒径的La2O3:Eu3 纳米微粒,研究了影响La2O3:Eu3 纳米微粒大小的实验条件,发现粒径大小随甘氨酸(Gly)与稀土离子比例的增大而减小.制备的纳米微粒由谢乐公式计算的粒径尺寸为12～28 nm.测量了样品的高分辨光谱.运用激光选择激发,研究了光谱在不同发光中心上的变化,表面态对于这些变化起着主要作用. |
| 关 键 词： | 燃烧法 稀土 纳米材料 La2O3 Eu3 激光选择激发 |
| 文章编号： | 1000-0593（2006）02-0231-04 |
| 收稿时间： | 2004-12-08 |
| 修稿时间： | 2005-04-24 |
Spectrum and Synthesis of Rare Earth Activated Nanoparticle |
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| CHANG Jian-jun,HUANG Shi-hua,PENG Hong-shang,MENG Chun-xia,YOU Fang-tian,L Shao-zhe,SUN Ling-dong.Spectrum and Synthesis of Rare Earth Activated Nanoparticle[J].Spectroscopy and Spectral Analysis,2006,26(2):231-234. | |
| Authors: | CHANG Jian-jun HUANG Shi-hua PENG Hong-shang MENG Chun-xia YOU Fang-tian L Shao-zhe SUN Ling-dong |
| Institution: | 1. Institute of Optoelectronics and Technology, Beijing Jiaotong University, Key Laboratory of Luminescence and Optical Information Ministry of Education, Beijing 100044, China; 2. Key Laboratory of Excited State Processes, Chinese Academy of Sciences, Changchun 130021, China; 3. The State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing 100871, China |
| Abstract: | La_2O_3: Eu~(3 ) nanoparticles were prepared by Gly assistant combustion synthesis with the sizes from 12-28 nm,and a characterization of XRD was done.Spectral properties of the nanoparticles were compared with the bulk.High resolution spectra were measured.Site selective excitation was employed to probe the local environments of Eu~(3 ) ions in La_2O_3 nanoparticles.The luminescent centers on the surface and the center of the nanoparticles were excited respectively.The spectra were related to surface information.The luminescence from C_(3v) site and the site with lower symmetry on the surface was distinguished. |
| Keywords: | Combustion Rare earth Nanoparticle La_2O_3: Eu~(3 ) Laser selective excitation |
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