Effect of Doping Rare-earth Concentrations on The Luminescence Spectrum of NaYF4：Yb3+,Tm3+ Nanocrystals

ZHAO Cheng-zhou; KONG Xiang-gui; SONG Shu-guang; LI Xiao-kun

doi:10.3788/fgxb20133408.0959

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Effect of Doping Rare-earth Concentrations on The Luminescence Spectrum of NaYF₄：Yb³⁺,Tm³⁺ Nanocrystals

更新时间：2020-08-12

- Effect of Doping Rare-earth Concentrations on The Luminescence Spectrum of NaYF₄：Yb³⁺,Tm³⁺ Nanocrystals
- Chinese Journal of Luminescence Vol. 34, Issue 8, Pages: 959-964(2013)
- 作者机构：
  
  1. 发光学及应用国家重点实验室中国科学院长春光学精密机械与物理研究所,吉林长春,130033
  2. 中国科学院大学北京,100049
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133408.0959
  CLC： O482.31
- Received：26 April 2013，
  
  Revised：20 May 2013，
  
  Published：10 August 2013
- 稿件说明：
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赵承周, 孔祥贵, 宋曙光, 李晓坤. Yb3+,Tm3+离子掺杂浓度对NaYF4：Yb3+,Tm3+发光光谱的影响[J]. 发光学报, 2013,34(8): 959-964

ZHAO Cheng-zhou, KONG Xiang-gui, SONG Shu-guang, LI Xiao-kun. Effect of Doping Rare-earth Concentrations on The Luminescence Spectrum of NaYF4：Yb3+,Tm3+ Nanocrystals[J]. Chinese Journal of Luminescence, 2013,34(8): 959-964
赵承周, 孔祥贵, 宋曙光, 李晓坤. Yb3+,Tm3+离子掺杂浓度对NaYF4：Yb3+,Tm3+发光光谱的影响[J]. 发光学报, 2013,34(8): 959-964 DOI： 10.3788/fgxb20133408.0959.

ZHAO Cheng-zhou, KONG Xiang-gui, SONG Shu-guang, LI Xiao-kun. Effect of Doping Rare-earth Concentrations on The Luminescence Spectrum of NaYF4：Yb3+,Tm3+ Nanocrystals[J]. Chinese Journal of Luminescence, 2013,34(8): 959-964 DOI： 10.3788/fgxb20133408.0959.

摘要

利用高温热溶剂法合成了不同Yb

和Tm

掺杂浓度的NaYF

：Yb

上转换发光纳米粒子。利用扫描电子显微镜、X射线衍射分析、荧光光谱对样品进行形貌和发光性质的表征。结果表明

不同Yb

和Tm

离子掺杂浓度对纳米粒子的上转换发光性质有很大影响。随着Tm

离子浓度的提高

离子之间的浓度猝灭和交叉弛豫效应对发光强度的影响愈来愈显著

导致纳米粒子的发光猝灭;同样

随着Yb

浓度的提高

纳米粒子的发光强度也是先增大后减小

这是因为Yb

离子浓度掺杂过高导致发光猝灭。

Abstract

The NaYF

：Yb

nanocrystals were synthetized with different doping concentrations of Yb

ions by a thermal decomposition method. The morphology

crystalline phase and optical properties were characterized by scanning electron microscopy (SEM)

X-ray diffraction (XRD) and luminescent spectra.With the concentrations of Tm

increasing

the emission intensity of Tm

firstly increased and then decreased because of the effects of ion concentration quenching and cross relaxation between the neighboring Tm

. The decrease of the luminescent intensity with the increase of Yb

ions is due to the concentration quenching effect.

关键词

Keywords

references

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