Crystal Structure and Photoluminescence Properties of MPO4：Eu3+,Bi3+/Tb3+ (M=La,Gd,Y) Phosphors

JIN Ye; WANG Qing-ping

doi:10.3788/fgxb20143501.0061

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Crystal Structure and Photoluminescence Properties of MPO₄：Eu³⁺,Bi³⁺/Tb³⁺ (M=La,Gd,Y) Phosphors

更新时间：2020-08-12

- Crystal Structure and Photoluminescence Properties of MPO₄：Eu³⁺,Bi³⁺/Tb³⁺ (M=La,Gd,Y) Phosphors
- Chinese Journal of Luminescence Vol. 35, Issue 1, Pages: 61-65(2014)
- 作者机构：
  
  1. 重庆理工大学光电信息学院重庆,400054
  2. 重庆大学材料学院重庆,400044
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143501.0061
  CLC： O482.31;O614.33
- Received：16 August 2013，
  
  Revised：15 September 2013，
  
  Published：03 January 2014
- 稿件说明：
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金叶, 王庆平. 荧光粉MPO4：Eu3+,Bi3+/Tb3+ (M=La,Gd,Y) 的结构及发光性能研究[J]. 发光学报, 2014,35(1): 61-65

JIN Ye, WANG Qing-ping. Crystal Structure and Photoluminescence Properties of MPO4：Eu3+,Bi3+/Tb3+ (M=La,Gd,Y) Phosphors[J]. Chinese Journal of Luminescence, 2014,35(1): 61-65
金叶, 王庆平. 荧光粉MPO4：Eu3+,Bi3+/Tb3+ (M=La,Gd,Y) 的结构及发光性能研究[J]. 发光学报, 2014,35(1): 61-65 DOI： 10.3788/fgxb20143501.0061.

JIN Ye, WANG Qing-ping. Crystal Structure and Photoluminescence Properties of MPO4：Eu3+,Bi3+/Tb3+ (M=La,Gd,Y) Phosphors[J]. Chinese Journal of Luminescence, 2014,35(1): 61-65 DOI： 10.3788/fgxb20143501.0061.

摘要

采用高温固相法合成了一系列

：Eu

，Bi

（

=La，Gd，Y）及

：Tb

（

=La，Gd，Y）荧光粉材料，用X射线衍射（XRD）仪对样品结构进行了表征。所合成的LaPO

和GdPO

属单斜晶系，而YPO

属体心立方晶系。用Diamond软件对结构进行分析并绘出了晶胞结构。对样品发光性质的研究结果表明，虽然

（

=La，Gd，Y）均属于正磷酸盐，但由于晶格结构不同，其发光性质也不同。立方晶系的YPO

更有利于掺入其中的稀土离子的发光，Bi

离子的引入能够明显改善样品的发光性能。

Abstract

:Eu

/Tb

(

=La

Y) phosphors were synthesized by conventional solid state reaction. The structures of the samples were characterized by X-ray diffraction (XRD). The results indicate that YPO

crystallizes is cubic structure while LaPO

and GdPO

are monoclinic structure. The difference between the emission spectra of YPO

:0.04Eu

and LaPO

:0.04Eu

indicates that the Eu

ions occupy nonequivalent sites in differrent material. The cubic structure is better for the luminescence of the doped RE ions than monoclinic structure. YPO

:0.04Eu

exhibits strong absorption at 394 nm and intense red emission. The same result can be obtained while the Eu

ions are changed into Tb

ions. The introduction of Bi

ions can significantly improve the photoluminescence properties of the phosphors.

关键词

Keywords

references

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