Synthesis and Luminescence Properties of Er3+ Doped and Er3+-Yb3+ Co-doped Ca12Al14O32F2

LIU Xiu-ling; GUO Yan-yan; MI Xiao-yun; ZHANG Xi-yan

doi:10.3788/fgxb20194005.0589

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Synthesis and Luminescence Properties of Er³⁺ Doped and Er³⁺-Yb³⁺ Co-doped Ca₁₂Al₁₄O₃₂F₂

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

- Synthesis and Luminescence Properties of Er³⁺ Doped and Er³⁺-Yb³⁺ Co-doped Ca₁₂Al₁₄O₃₂F₂
- Chinese Journal of Luminescence Vol. 40, Issue 5, Pages: 589-594(2019)
- 作者机构：
  
  长春理工大学材料科学与工程学院,吉林长春,130022
- 作者简介：
- 基金信息：
  
  T Development Plan Project of China (20160414043GH);13th Five-Year"
- DOI：10.3788/fgxb20194005.0589
  CLC： O734+.3
- Received：21 May 2018，
  
  Revised：15 September 2018，
  
  Published Online：26 September 2018，
  
  Published：05 May 2019
- 稿件说明：
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刘秀玲, 郭艳艳, 米晓云等. Er³⁺单掺、Er³⁺/Yb³⁺共掺杂Ca₁₂Al₁₄O₃₂F₂的制备及上转换发光性质[J]. 发光学报, 2019,40(5): 589-594

LIU Xiu-ling, GUO Yan-yan, MI Xiao-yun etc. Synthesis and Luminescence Properties of Er³⁺ Doped and Er³⁺-Yb³⁺ Co-doped Ca₁₂Al₁₄O₃₂F₂[J]. Chinese Journal of Luminescence, 2019,40(5): 589-594
刘秀玲, 郭艳艳, 米晓云等. Er³⁺单掺、Er³⁺/Yb³⁺共掺杂Ca₁₂Al₁₄O₃₂F₂的制备及上转换发光性质[J]. 发光学报, 2019,40(5): 589-594 DOI： 10.3788/fgxb20194005.0589.

LIU Xiu-ling, GUO Yan-yan, MI Xiao-yun etc. Synthesis and Luminescence Properties of Er³⁺ Doped and Er³⁺-Yb³⁺ Co-doped Ca₁₂Al₁₄O₃₂F₂[J]. Chinese Journal of Luminescence, 2019,40(5): 589-594 DOI： 10.3788/fgxb20194005.0589.

摘要

利用高温固相法成功制备了Er

单掺、Er

/Yb

共掺杂Ca

上转换发光样品。在980 nm激光激发下，Er

单掺和Er

/Yb

共掺杂样品均呈现出较强的绿光（528，549 nm）和较弱的红光（655 nm）发射，分别归因于Er

离子的

11/2

，

3/2

15/2

和

9/2

15/2

能级跃迁。随着Er离子浓度的增加，单掺杂样品上转换发光强度先增大后减小，最佳掺杂浓度为0.8%。共掺杂Yb

后，Er

的发光强度明显增大。还原气氛下合成的样品上转换发光强度增大约两倍，可能和笼中阴离子基团变化有关。发光强度和激发光功率的关系表明所得上转换发射为双光子吸收过程，借助Er

-Yb

体系能级结构详细讨论了上转换发射的跃迁机制。

Abstract

doped and Er

-Yb

co-doped Ca

were synthesized by solid-state reaction method at 1 250℃ and the upconversion luminescence (UCL) properties of the phosphor were studied under 980 nm excitation. The phosphor exhibits green (549 nm) and red (655 nm) emission

which corresponding to

3/2

11/2

15/2

and

9/2

15/2

transitions of Er

respectively. The UCL intensity of the single doped sample increased firstly and then decreased with the increasing Er

concentration and the optimum concentration is 0.8%. The UCL intensity of Ca

:Er

prepared in reducing atmosphere is enhanced by 2 times

which might be due to the encaged ions. The dependence of the UCL intensity on excitation powder proves that the observed emissions are obtained

via

two absorption processes. The transition mechanism of phosphor excitation under 980 nm is discussed in detail.

关键词

Keywords

references

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