INVESTIGATION ON ENERGY TRANSFER BETWEEN THE TWO SITES IN NANOCRYSTALLITES X1-Y2SiO5：Eu

Yin Min; Lou Liren; Zhang Weiping; Xia Shangda; Jean-Claude Krupa

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INVESTIGATION ON ENERGY TRANSFER BETWEEN THE TWO SITES IN NANOCRYSTALLITES X₁-Y₂SiO₅：Eu

更新时间：2020-08-11

- INVESTIGATION ON ENERGY TRANSFER BETWEEN THE TWO SITES IN NANOCRYSTALLITES X₁-Y₂SiO₅：Eu
- Chinese Journal of Luminescence Vol. 19, Issue 3, Pages: 216-220(1998)
- 作者机构：
  
  1. 中国科技大学物理系合肥,230026
  2. 中国科学院激发态物理开放研究实验室长春,130021
  3. 法国国家科研中心ORSAY核物理所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：08 December 1997，
  
  Published：30 August 1998
- 稿件说明：
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尹民, 楼立人, 张慰萍, 夏上达, J-C Krupa. 纳米微晶X1-Y2SiO5：Eu中两种发光中心之间的能量传递研究[J]. 发光学报, 1998,19(3): 216-220

Yin Min, Lou Liren, Zhang Weiping, Xia Shangda, Jean-Claude Krupa. INVESTIGATION ON ENERGY TRANSFER BETWEEN THE TWO SITES IN NANOCRYSTALLITES X1-Y2SiO5：Eu[J]. Chinese Journal of Luminescence, 1998,19(3): 216-220
尹民, 楼立人, 张慰萍, 夏上达, J-C Krupa. 纳米微晶X1-Y2SiO5：Eu中两种发光中心之间的能量传递研究[J]. 发光学报, 1998,19(3): 216-220 DOI：

Yin Min, Lou Liren, Zhang Weiping, Xia Shangda, Jean-Claude Krupa. INVESTIGATION ON ENERGY TRANSFER BETWEEN THE TWO SITES IN NANOCRYSTALLITES X1-Y2SiO5：Eu[J]. Chinese Journal of Luminescence, 1998,19(3): 216-220 DOI：

摘要

稀土掺杂的硅酸盐是应用广泛的发光和光学材料。通过低温下格位选择激发的光致发光和衰减曲线测量

详细研究了纳米微晶X

-Y

SiO

:Eu中两种发光中心之间的能量传递

给出了不同浓度下两种发光中心的发光衰减曲线和寿命

讨论了能量传递的机理。

Abstract

Photoluminescence spectra of nanocrystallites X

-Y

SiO

:Eu were recorded at 15K using site selective excitation by a dye laser. The results show that there is a pronounced energy transfer from site 21 and the transfer rates increases with increasing of Eu

concentration. The fluorescent lifetimes of the two sites were also measured as a function of concentration. As expected

we found that the lifetimes of site 2 decreases with increasing concentration. Decay curve measurement of site 1 under exciting site 2 revealed the transfer process directly. The mechanism of the energy transfer is discussed.

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