Phase Transition and Luminescence Enhancement Induced by Er3+/Yb3+ Doping Ratio Change in Nano NaYb1-<italic style="font-style: italic">x</italic>F4:Er<italic style="font-style: italic">x</italic>3+

Xiao-dan LI; Li ZHANG; Hui-ying ZHAO; Yu-lei CHANG; Lang-ping TU; You-lin ZHANG; Xiang-gui KONG; Qi-qing LI

doi:10.37188/CJL.20200381

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Phase Transition and Luminescence Enhancement Induced by Er³⁺/Yb³⁺ Doping Ratio Change in Nano NaYb_1-xF₄:Er_x³⁺

Synthesis and Properties of Materials | 更新时间：2021-02-08

- Phase Transition and Luminescence Enhancement Induced by Er³⁺/Yb³⁺ Doping Ratio Change in Nano NaYb_1-xF₄:Er_x³⁺
- Chinese Journal of Luminescence Vol. 42, Issue 2, Pages: 187-194(2021)
- 作者机构：
  
  1.吉林大学白求恩第一医院, 吉林长春 130021
  2.中国科学院长春光学精密机械与物理研究所发光学及应用国家重点实验室, 吉林长春 130033
  3.阿姆斯特丹大学范德霍夫分子科学研究所, 荷兰阿姆斯特丹 1098 XH
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;National Natural Science Foundation of China;National Natural Science Foundation of China;National Natural Science Foundation of China;National Natural Science Foundation of China
- DOI：10.37188/CJL.20200381
  CLC： O482.31
- Received：12 December 2020，
  
  Accepted：05 January 2021，
  
  Published：2021-02
- 稿件说明：
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Xiao-dan LI, Li ZHANG, Hui-ying ZHAO, et al. Phase Transition and Luminescence Enhancement Induced by Er³⁺/Yb³⁺ Doping Ratio Change in Nano NaYb_1-xF₄:Er_x³⁺[J]. Chinese journal of luminescence, 2021, 42(2): 187-194.
DOI：

Xiao-dan LI, Li ZHANG, Hui-ying ZHAO, et al. Phase Transition and Luminescence Enhancement Induced by Er³⁺/Yb³⁺ Doping Ratio Change in Nano NaYb_1-xF₄:Er_x³⁺[J]. Chinese journal of luminescence, 2021, 42(2): 187-194. DOI： 10.37188/CJL.20200381.

摘要

在Yb

和Er

共掺杂氟化物纳米体系中，2% Er

掺杂浓度为上转换发光的最佳浓度，高于这个浓度，随着Er

掺杂浓度的增加，将发生严重上转换发光浓度猝灭，已为人们广泛认知和接受。本文合成了不同Er

/Yb

掺杂浓度比的NaYb

：Er

系列上转换发光纳米粒子。通过扫描电镜、XRD和荧光光谱等分析方法对这些合成的样品进行了表征。研究结果表明，当Er

/Yb

掺杂浓度比在0.02/0.98~0.2/0.8和0.6/0.4~0.8/0.2范围时，合成的NaYb

：Er

纳米粒子分别为α相和β相结构；而特别值得注意的是，当掺杂浓度比在0.3/0.7~0.4/0.6范围时，合成的纳米粒子为从α相向β相过渡的α相和β相共存相结构。Er

/Yb

最佳掺杂浓度比分别为0.02/0.98和0.4/0.6的两种α相和β相共存相结构的纳米粒子都展现了非常好的上转换发光增强。这些结果对于理解稀土离子浓度发光猝灭机制，提高上转换发光效率，促进稀土纳米发光材料在新型光源、生物医学和激光等领域的应用都具有重要的科学研究意义和启发作用。

Abstract

It was well known that 2% Er

of the doping concentration is optimal in the fluorides nanostructures co-doped with Yb

and Er

for boosting upconversion luminescence. Herein

a series of NaYb

:Er

upconversion nanoparticles were synthesized with different Er

/Yb

doping ratio

which were analyzed and characterized by SEM

XRD and spectroscopy. It was shown that the two doping ratio of Er

/Yb

i. e

. 0.02/0.98 and 0.4/0.6

are the most favorable for upconversion luminescence of the as-synthesized nanoparticles. The XRD reveals that the as-synthesized series of nanoparticles show three phase structures

one α phase for 0.02/0.98~0.2/0.8 of the Er

/Yb

doping ratios

i.e

. the other β phase for 0.6/0.4~0.8/0.2

and the third coexisting phase consisting of α phase and β phase for 0.3/0.7~0.4/0.6

respectively. These results can be useful in promoting the development of biomedical

solar and laser applications.

关键词

Keywords

references

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Related Author

Xiao-dan LI

Li ZHANG

Hui-ying ZHAO

Yu-lei CHANG

Lang-ping TU

You-ling Zhang

KONG-Xiang-gui

Qi-qing LI

Related Institution

The First Hospital， Jilin University

State Key Laboratory of Luminescence and Applications， Changchun Institute of Optics， Fine Mechanics and Physics， Chinese Academy of Sciences

Van’t Hoff Institute for Molecular Sciences， University of Amsterdam Science Park

Department of Mathematics and Physics， Chongqing University of Posts and Telecommunications

Department of Science， Taiyuan Institute of Technology

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⁰

Phase Transition and Luminescence Enhancement Induced by Er3+/Yb3+ Doping Ratio Change in Nano NaYb1-xF4:Erx3+

DOI：10.37188/CJL.20200381

摘要

Abstract

关键词

Keywords

references

Phase Transition and Luminescence Enhancement Induced by Er³⁺/Yb³⁺ Doping Ratio Change in Nano NaYb_1-xF₄:Er_x³⁺