Controlling Emissions of NaM4 (VO4)3: Eu3+(M=Mg, Ca) Phosphor by Adjusting Base Composition and Charge Compensation

YANG Guo-hui; CHEN Kai; WANG Xiao-jun; LIANG Li-fang; MENG Li-li; ZHANG Li-xia

doi:10.3788/fgxb20194006.0725

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Controlling Emissions of NaM₄ (VO₄)₃: Eu³⁺(M=Mg, Ca) Phosphor by Adjusting Base Composition and Charge Compensation

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

- Controlling Emissions of NaM₄ (VO₄)₃: Eu³⁺(M=Mg, Ca) Phosphor by Adjusting Base Composition and Charge Compensation
- Chinese Journal of Luminescence Vol. 40, Issue 6, Pages: 725-734(2019)
- 作者机构：
  
  南宁师范大学化学与材料学院, 广西南宁 530001
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China(21161004,51762008)
- DOI：10.3788/fgxb20194006.0725
  CLC： O614;O482.31
- Received：09 July 2018，
  
  Revised：25 September 2018，
  
  Published Online：11 October 2018，
  
  Published：05 June 2019
- 稿件说明：
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杨国辉, 陈凯, 王小军等. 基质组成变化及电荷补偿对NaM4(VO4)3:Eu3+(M=Mg,Ca)荧光性能的调控[J]. 发光学报, 2019,40(6): 725-734

YANG Guo-hui, CHEN Kai, WANG Xiao-jun etc. Controlling Emissions of NaM4 (VO4)3: Eu3+(M=Mg, Ca) Phosphor by Adjusting Base Composition and Charge Compensation[J]. Chinese Journal of Luminescence, 2019,40(6): 725-734
杨国辉, 陈凯, 王小军等. 基质组成变化及电荷补偿对NaM4(VO4)3:Eu3+(M=Mg,Ca)荧光性能的调控[J]. 发光学报, 2019,40(6): 725-734 DOI： 10.3788/fgxb20194006.0725.

YANG Guo-hui, CHEN Kai, WANG Xiao-jun etc. Controlling Emissions of NaM4 (VO4)3: Eu3+(M=Mg, Ca) Phosphor by Adjusting Base Composition and Charge Compensation[J]. Chinese Journal of Luminescence, 2019,40(6): 725-734 DOI： 10.3788/fgxb20194006.0725.

摘要

利用高温固相法制备NaMg

（VO

）

:0.01Eu

（

=0~2）、NaMg

2.1

1.9-

（VO

）

（

=0~0.19）、NaMg

2.1

1.9-

（VO

）

，

（

=Cl，F）和NaMg

2.1

1.9-

（VO

）

，

（

=Li，Na，K）系列荧光粉，采用X射线粉末衍射仪、扫描电子显微镜和荧光分光光度计对样品进行了结构和性能表征。探讨基质结构变化和Li

、Na

、K

、F

、Cl

等阴阳离子的电荷补偿作用对VO

和Eu

发光性能的影响以及能量传递机理。研究表明立方相NaMg

（VO

）

比四方相NaMg

（VO

）

更能被紫外光有效激发，同时发射基质的蓝绿光和铕离子的红光，且VO

和Eu

之间的能量传递效率达到42.21%。电荷补偿剂能显著提高Eu

的发射强度，同时基质发光强度减弱表明电荷补偿剂增强了基质与激活剂离子间的能量传递。通过控制合成条件可以得到单一基质白光发射荧光粉。

Abstract

NaMg

(VO

)

:0.01Eu

(

=0~2)

NaMg

2.1

1.9-

(VO

)

(

=0~0.19)

NaMg

2.1

1.9-

(VO

)

(

=Cl

F) and NaMg

2.1

1.9-2

(VO

)

(

=Li

K) phosphors have been synthesized by high temperature solid phase method. X-ray diffraction(XRD)

scanning electron microscopy(SEM) and photoluminescence spectra were utilized to characterize the samples. The results show that the NaMg

(VO

)

cubic phase phosphor can been effectly excited by UV light

and emit the blue green light of vanadate ions and the red light of europium ions simultaneously. The effect on the luminescence properties of VO

and Eu

by adjusting matrix composition and charge compensation by F

and K

ions

the energy transfer from VO

to Eu

and the energy transfer mechanism have been discussed. Charge compensators can increase the emission intensity of Eu

and decrease the luminescence intensity of the substrate significantly

indicating that the charge compensators enhance the energy transfer between the substrate and activator ions. The emission intensities of the blue green and red light can be controlling

and a single base white light phosphor was obtained.

关键词

Keywords

references

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