Preparation and Luminescence Properties of Eu3+ Activated K2CaP2O7 Phosphors

LAI Hai-zhen; ZHU Bin; WANG Jing; ZOU Wen-zhen; HOU De-jian; LI Jin-yan

doi:10.3788/fgxb20183902.0121

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Preparation and Luminescence Properties of Eu³⁺ Activated K₂CaP₂O₇ Phosphors

更新时间：2020-08-12

- Preparation and Luminescence Properties of Eu³⁺ Activated K₂CaP₂O₇ Phosphors
- Chinese Journal of Luminescence Vol. 39, Issue 2, Pages: 121-126(2018)
- 作者机构：
  
  江西理工大学冶金与化学工程学院,江西赣州,341000
- 作者简介：
- 基金信息：
  
  Supported by Natural Science Foundation of Jiangxi Province(20161BAB216124);Scienc
- DOI：10.3788/fgxb20183902.0121
  CLC： O482.31
- Received：01 June 2017，
  
  Revised：19 August 2017，
  
  Published Online：11 September 2017，
  
  Published：05 February 2018
- 稿件说明：
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赖海珍, 朱斌, 王婧等. Eu3+激活K2CaP2O7荧光粉的制备和发光性质[J]. 发光学报, 2018,39(2): 121-126

LAI Hai-zhen, ZHU Bin, WANG Jing etc. Preparation and Luminescence Properties of Eu3+ Activated K2CaP2O7 Phosphors[J]. Chinese Journal of Luminescence, 2018,39(2): 121-126
赖海珍, 朱斌, 王婧等. Eu3+激活K2CaP2O7荧光粉的制备和发光性质[J]. 发光学报, 2018,39(2): 121-126 DOI： 10.3788/fgxb20183902.0121.

LAI Hai-zhen, ZHU Bin, WANG Jing etc. Preparation and Luminescence Properties of Eu3+ Activated K2CaP2O7 Phosphors[J]. Chinese Journal of Luminescence, 2018,39(2): 121-126 DOI： 10.3788/fgxb20183902.0121.

摘要

采用高温固相法制备了系列不同浓度Eu

离子掺杂的K

CaP

红色荧光粉。通过X射线衍射、扫描电子显微镜、荧光光谱和荧光寿命曲线等手段对荧光粉的物相结构、形貌以及发光性质进行了研究。结果表明所制备的荧光粉均属于单斜结构，Eu

离子掺杂没有引起晶体结构明显变化，荧光粉形貌不规则，颗粒为微米量级且部分发生团聚。在393 nm紫外光激发下，荧光粉显示出红光发射，最强发射峰位于613 nm。Eu

离子掺杂浓度对发光强度有显著影响，最佳掺杂摩尔分数为0.08，由此计算能量传递临界距离为1.61 nm。荧光寿命受掺杂浓度影响较小，当Eu

掺杂摩尔分数为0.005~0.10时，荧光寿命在2.45~2.58 ms范围内。变温发射光谱显示，测试温度为150℃时，荧光粉的发光强度为室温的73%。研究表明，Eu

离子掺杂的K

CaP

是性能较好的红色荧光粉。

Abstract

A series of Eu

doped K

CaP

phosphors were prepared by high temperature solid state reaction method. The phase structure

morphology

luminescence properties of the phosphors were investigated by XRD

SEM

luminescence spectra and luminescence decay curves. The results show that all the phosphors have monoclinic structure

the doping of Eu

ions does not significantly influence the structure of K

CaP

host lattice. The phosphors exhibit irregular morphology with the particle size of several microns. Under 393 nm excitation

doped K

CaP

samples emit red lights with the most intense peak at 613 nm. The optimal doping concentration of Eu

is 0.08 in the host

the critical energy transfer distance between Eu

ions is calculated to be 1.61 nm. The doping concentration has little influence on the decay time of Eu

the decay times of all the samples are in the 2.45-2.58 ms range. Moreover

the relative emission intensity maintains 73% of its original intensity when the temperature reaches 150℃. All the above results indicate that Eu

doped K

CaP

may be a potential red phosphor.

关键词

Keywords

references

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