| Eu2+离子在BaF2-xREF3体系中的f→f跃迁发射 |
| |
| 引用本文： | 石春山,叶泽人,刘祖刚.Eu2+离子在BaF2-xREF3体系中的f→f跃迁发射[J].应用化学,1985,0(3):23-28. |
| |
| 作者姓名： | 石春山 叶泽人 刘祖刚 |
| |
| 作者单位： | 中国科学院长春应用化学研究所 |
| |
| 摘 要： | 研究了Eu2+离子在BaF2-xREF3体系中的荧光光谱结构,当RE=La,Gd,Y,Lu和Sc时,降低温度或适当改变基质中阳离子间摩尔比都观察到了EU2+的f→f跃迁尖峰发射。
|
| 收稿时间： | 1984-06-11 |
| 修稿时间： | 1985-02-15 |
THE f→f TRANSTION EMISSION OF Eu2+ ION IN SYSTEM BaF2-x REF3 |
| |
| Shi Chunshan,Ye Zeren,Liu Zugang.THE f→f TRANSTION EMISSION OF Eu2+ ION IN SYSTEM BaF2-x REF3[J].Chinese Journal of Applied Chemistry,1985,0(3):23-28. |
| |
| Authors: | Shi Chunshan Ye Zeren Liu Zugang |
| |
| Institution: | Changchun Institute of Applied Chemistry, Academia Sinica |
| |
| Abstract: | In this paper the narrow line emision of f→f transition for Eu2+ ion in the system BaF2-xREF3 (RE:rare earths) is reported.When RE=Lu,x=1 (at temperature T=300K); RE=Y,x=2(T=300K)'RE=Sc,x=2(T=77K);RE=La or Gd(T=77K) the narrow line emission was found to be dependent on the temperature (T) and the molar ratio (x) between cations in flouride matrix and the emission became more easier according the order of La, Gd, Sc, Y and Lu. No narrow line emission for Eu2+ ion in BaF2-xLnF3 (Ln=lanthanide ions except Pm) was observed, irrespective of whatever molar ratio ortemperature was used in the experiments.The narrow line emission (f→f) has been ascribed to the weak crystal field at the site of the Eu2+ ion in fluorides. |
| |
| Keywords: | |
|
| 点击此处可从《应用化学》浏览原始摘要信息 |
| 点击此处可从《应用化学》下载免费的PDF全文 |
|
