Manipulation of Luminescence Properties of Sr6Ca4(PO4)6F2:Eu2+, Mn2+

Hong-bo ZHU; Xue-li SHI; Su-yu WU; Ruo-tong BAO; Guo-quan MA; Yue-bin LI; Pan-lai LI; Zhi-p

doi:10.3788/fgxb20204106.0670

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Manipulation of Luminescence Properties of Sr₆Ca₄(PO₄)₆F₂:Eu²⁺, Mn²⁺

Synthesis and Properties of Materials | 更新时间：2020-09-15

- Manipulation of Luminescence Properties of Sr₆Ca₄(PO₄)₆F₂:Eu²⁺, Mn²⁺
- Chinese Journal of Luminescence Vol. 41, Issue 6, Pages: 670-678(2020)
- 作者机构：
  
  河北大学物理科学与技术学院, 河北保定 071002
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;National Natural Science Foundation of
- DOI：10.3788/fgxb20204106.0670
  CLC： O482.31
- Received：10 February 2020，
  
  Accepted：12 April 2020，
  
  Published：2020-06
- 稿件说明：
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Hong-bo ZHU, Xue-li SHI, Su-yu WU, et al. Manipulation of Luminescence Properties of Sr₆Ca₄(PO₄)₆F₂:Eu²⁺, Mn²⁺[J]. Chinese journal of luminescence, 2020, 41(6): 670-678.
DOI：

Hong-bo ZHU, Xue-li SHI, Su-yu WU, et al. Manipulation of Luminescence Properties of Sr₆Ca₄(PO₄)₆F₂:Eu²⁺, Mn²⁺[J]. Chinese journal of luminescence, 2020, 41(6): 670-678. DOI： 10.3788/fgxb20204106.0670.

摘要

以Sr

（PO

）

为基质、Eu

/Mn

为掺杂离子、H

为助剂，利用固相法制备了系列发光材料。由X射线衍射图可知，材料的相是单一的。利用Mn

离子的浓度猝灭效应以及Eu

-Mn

能量传递过程中存在的"瓶颈效应"和"反瓶颈效应"解释了Sr

（PO

）F

：Eu

，Mn

量子效率降低的原因。通过添加助剂H

及调控阳离子的方式有效地提高了Sr

（PO

）F

：Eu

，Mn

的量子效率，采用精修手段分析了发光中心所处晶体场环境的变化情况，并解释了两种调控过程中Eu

和Mn

发射强度变化的原因。

Abstract

In this work

the Sr

(PO

)

is selected as host compound. The Eu

/Mn

ions are selected as doped ions. H

is used as agent. The phosphors are prepared by the solid-state method. The single-phase was proved by the XRD pattern of phosphor. There are two reasons for the decrease of quantum efficiency of Sr

(PO

:Eu

. One is the concentration quenching effect of Mn

and the other is "bottleneck effect" and "anti-bottleneck effect" in the energy transfer of Eu

-Mn

. The quantum efficiency of Sr

(PO

:Eu

can be enhanced by doping auxiliary agent H

and regulating cations. For the luminescent centers of Eu

and Mn

their crystal field environments can be analyzed by the data of refinement

and their emission intensities in the two manipulation methods can be also explained.

关键词

Keywords

references

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