用同步辐射研究掺Tb3+氟化物K2GdF5 的光谱和Gd3+-Tb3+能量传递

游宝贵; 尹民; 陈永虎; 段昌奎

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用同步辐射研究掺Tb³⁺氟化物K₂GdF₅ 的光谱和Gd³⁺-Tb³⁺能量传递

材料合成及性能研究 | 更新时间：2020-08-12

- 用同步辐射研究掺Tb³⁺氟化物K₂GdF₅ 的光谱和Gd³⁺-Tb³⁺能量传递
- Synchrotron Radiation Study of The Luminescence and Energy Transfer of Tb³⁺-doped K₂GdF₅
- 发光学报 2011年32卷第12期页码：1216-1220
- 作者机构：
  
  中国科学技术大学物理系
- 作者简介：
- 基金信息：
  
  国家自然科学基金(10904139、11111120060)();中科院知识创新工程(KJCX2-YW-M11)资助项目()
- DOI：
  中图分类号： O482.31
- 收稿日期：2011-08-18，
  
  修回日期：2011-10-09，
  
  网络出版日期：2011-12-22，
  
  纸质出版日期：2011-12-22
- 稿件说明：
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游宝贵, 尹民, 陈永虎, 段昌奎. 用同步辐射研究掺Tb3+氟化物K2GdF5 的光谱和Gd3+-Tb3+能量传递[J]. 发光学报, 2011,32(12): 1216-1220

YOU Bao-gui, YIN Min, CHEN Yong-hu, DUAN Chang-kui. Synchrotron Radiation Study of The Luminescence and Energy Transfer of Tb3+-doped K2GdF5[J]. Chinese Journal of Luminescence, 2011,32(12): 1216-1220
游宝贵, 尹民, 陈永虎, 段昌奎. 用同步辐射研究掺Tb3+氟化物K2GdF5 的光谱和Gd3+-Tb3+能量传递[J]. 发光学报, 2011,32(12): 1216-1220 DOI：

YOU Bao-gui, YIN Min, CHEN Yong-hu, DUAN Chang-kui. Synchrotron Radiation Study of The Luminescence and Energy Transfer of Tb3+-doped K2GdF5[J]. Chinese Journal of Luminescence, 2011,32(12): 1216-1220 DOI：

摘要

对比了不同激发波长下水热法合成的K

GdF

∶Tb

(摩尔分数0.5%)单晶材料的光致发光谱线;监测了

和

的激发谱

给出了几组窄带吸收和3个宽带吸收; 分析表明窄带发射为Gd

的

7/2

、

7/2

、

7/2

、

7/2

的跃迁

宽带发射为Gd

的基态

到4f

(

S) 5d组态中的低自旋态的跃迁;此外

还对Gd

的能量传递和Tb

之间的交叉弛豫进行了初步分析。

Abstract

The photoluminescence spectra of K

GdF

:Tb

(0.5%

mole fraction) single crystal under various excitations were measured and compared. The room temperature excitation spectra of

and

transitions exhibited three broad bands and three groups of narrow peaks. The narrow peaks were assigned as

7/2

and

7/2

transition of Gd

and the broad bands were assigned as the absorption from the ground state

to the low-spin states of 4f

(

S)5d configurations of Tb

. The mechanism of energy transfer from Gd

to Tb

and the cross relaxation between Tb

ions were also analyzed.

关键词

Keywords

references

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