Dependent of Upconversed Emission on Excited Power in Yb3+-Er3+-codoped Fluorides

ZHANG Ji-sen; ZHANG Li-guo; REN Jian-yue; ZHANG Li-ping; LV Shao-zhe

doi:10.3788/fgxb20123306.0571

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Dependent of Upconversed Emission on Excited Power in Yb³⁺-Er³⁺-codoped Fluorides

Synthesis and Properties of Materials | 更新时间：2020-08-12

- Dependent of Upconversed Emission on Excited Power in Yb³⁺-Er³⁺-codoped Fluorides
- Chinese Journal of Luminescence Vol. 33, Issue 6, Pages: 571-575(2012)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123306.0571
  CLC： O482.31
- Received：29 February 2012，
  
  Revised：2012-3-28，
  
  Published Online：10 June 2012，
  
  Published：10 June 2012
- 稿件说明：
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张继森, 张立国, 任建岳, 张立平, 吕少哲. Yb3+-Er3+共掺杂的氟化物材料中激发功率对上转换发射光谱性质的影响[J]. 发光学报, 2012,(6): 571-575

ZHANG Ji-sen, ZHANG Li-guo, REN Jian-yue, ZHANG Li-ping, LV Shao-zhe. Dependent of Upconversed Emission on Excited Power in Yb3+-Er3+-codoped Fluorides[J]. Chinese Journal of Luminescence, 2012,(6): 571-575
张继森, 张立国, 任建岳, 张立平, 吕少哲. Yb3+-Er3+共掺杂的氟化物材料中激发功率对上转换发射光谱性质的影响[J]. 发光学报, 2012,(6): 571-575 DOI： 10.3788/fgxb20123306.0571.

ZHANG Ji-sen, ZHANG Li-guo, REN Jian-yue, ZHANG Li-ping, LV Shao-zhe. Dependent of Upconversed Emission on Excited Power in Yb3+-Er3+-codoped Fluorides[J]. Chinese Journal of Luminescence, 2012,(6): 571-575 DOI： 10.3788/fgxb20123306.0571.

摘要

用固相法合成了Er

和Yb

共掺的LaF

及NaYbF

上转换发光粉末样品材料

研究了激发功率对室温上转换发光性质的影响

重点研究了红光发射增强现象

并探讨了获得红色上转换发光的条件。实验结果表明:在980 nm半导体激光激发下

和Yb

共同掺杂的不同氟化物样品材料能够展示比较明亮的红色和绿色发光

激发功率密度对该类材料的上转换红色发射光谱性质能够产生明显的影响。基于上转换发光机制

提出了能量传递的红色上转换发射过程

并借助于一个示意性的能级图解释了所观测到的红色上转换发射增强现象。

Abstract

-Er

-codoped fluoride samples were synthesized by using solid-state reaction method. Upconversion emission characters were investingated under 980 nm laser diode excitation. It was found that the upconversion spectra depended on excited power when Yb

-doped content was more than 10%. According to various concentration of rear-earth ions

an upconversion process with time-delayed sequential two-phonon energy tansfer was proposed

which can be able to explain the phenomenon satisfactorily.

关键词

Keywords

references

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Krämer K W, Biner D, Frei G, et al. Hexagonal sodium yttrium fluoride based green and blue emitting upconversion phosphors [J]. Chem. Mater. 2004, 16(7):1244-1251.

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