Effect of Doped-shell on The Luminescent Enhancement of NaYF4:Ce3+,Tb3+ System

JIN Hui; MA Hong-tao; LIU Peng

doi:10.3788/fgxb20163708.0955

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Effect of Doped-shell on The Luminescent Enhancement of NaYF₄:Ce³⁺,Tb³⁺ System

更新时间：2020-08-12

- Effect of Doped-shell on The Luminescent Enhancement of NaYF₄:Ce³⁺,Tb³⁺ System
- Chinese Journal of Luminescence Vol. 37, Issue 8, Pages: 955-960(2016)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所质量检测中心, 吉林长春 130033
  2. 中国科学院长春应用化学研究所高分子与物理国家重点实验室, 吉林长春 130022
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163708.0955
  CLC： O614;O482.31
- Received：13 April 2016，
  
  Revised：24 May 2016，
  
  Published：05 August 2016
- 稿件说明：
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金辉, 马洪涛, 刘鹏. 掺杂壳层对增强NaYF4:Ce3+,Tb3+体系发光的影响[J]. 发光学报, 2016,37(8): 955-960

JIN Hui, MA Hong-tao, LIU Peng. Effect of Doped-shell on The Luminescent Enhancement of NaYF4:Ce3+,Tb3+ System[J]. Chinese Journal of Luminescence, 2016,37(8): 955-960
金辉, 马洪涛, 刘鹏. 掺杂壳层对增强NaYF4:Ce3+,Tb3+体系发光的影响[J]. 发光学报, 2016,37(8): 955-960 DOI： 10.3788/fgxb20163708.0955.

JIN Hui, MA Hong-tao, LIU Peng. Effect of Doped-shell on The Luminescent Enhancement of NaYF4:Ce3+,Tb3+ System[J]. Chinese Journal of Luminescence, 2016,37(8): 955-960 DOI： 10.3788/fgxb20163708.0955.

摘要

构建了NaYF

：Ce

，Tb

/NaYF

：

%Ce

核/活性壳结构，系统地研究了能量激发、吸收、迁移和发射的每一个过程，揭示了活性壳对增强发光所起的作用。研究表明，活性壳增强发光的本质是增加了激发光的吸收效率。而对于量子产率而言，计算得到裸核的荧光量子效率为21.5%，核/惰性壳结构的荧光量子效率为59.8%，核/活性壳结构的荧光量子效率为53.2%。结果表明，与核/惰性壳结构相比，核/活性壳结构的发光量子产率并没有得到提高，甚至还有所降低。

Abstract

NaYF

:Ce

/NaYF

%Ce

core/active-shell was prepared. The complete processes of excitation

energy migration

from photon absorption to emission were dissected to unravel the role of sensitizers doped in shell in every individual stage. The experiment results reveal that the essence of doping sensitizers in the shell is just to increase the absorption efficiency whereas the quantum yield is lessened simultaneously. The optimal sensitizer doping concentration is also fixed to achieve the best luminescence performance. In order to obtain the best enhanced luminescence effect

the doping concentration of the sensitized ions in the shell must be lower than that of the bare core.

关键词

Keywords

references

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