单一基质白色荧光粉Ca9Al(PO4)7:Ce3+,Dy3+ 的制备与发光性能

杨志平; 吕梁; 刘鹏飞; 赵引红; 王灿; 刘利鹏

doi:10.3788/fgxb20133404.0395

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单一基质白色荧光粉Ca₉Al(PO₄)₇:Ce³⁺,Dy³⁺ 的制备与发光性能

材料合成及性能 | 更新时间：2020-08-12

- 单一基质白色荧光粉Ca₉Al(PO₄)₇:Ce³⁺,Dy³⁺ 的制备与发光性能
- Synthesis and Luminescent Properties of The Single White Emitting Phosphor Ca₉Al(PO₄)₇:Ce³⁺,Dy³⁺
- 发光学报 2013年34卷第4期页码：395-399
- 作者机构：
  
  1. 河北大学物理科学与技术学院,河北保定,071002
  2. 河北大学电子信息工程学院,河北保定,071002
- 作者简介：
- 基金信息：
  
  国家自然科学基金(50902042)();河北省自然科学基金(F2009000217)资助项目()
- DOI：10.3788/fgxb20133404.0395
  中图分类号： O482.31
- 收稿日期：2013-01-01，
  
  修回日期：2013-01-24，
  
  网络出版日期：2013-01-25，
  
  纸质出版日期：2013-04-10
- 稿件说明：
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杨志平, 吕梁, 刘鹏飞, 赵引红, 王灿, 刘利鹏. 单一基质白色荧光粉Ca9Al(PO4)7:Ce3+,Dy3+ 的制备与发光性能[J]. 发光学报, 2013,34(4): 395-399

YANG Zhi-ping, LYU Liang, LIU Peng-fei, ZHAO Yin-hong, WANG Can, LIU Li-peng. Synthesis and Luminescent Properties of The Single White Emitting Phosphor Ca9Al(PO4)7:Ce3+,Dy3+[J]. Chinese Journal of Luminescence, 2013,34(4): 395-399
杨志平, 吕梁, 刘鹏飞, 赵引红, 王灿, 刘利鹏. 单一基质白色荧光粉Ca9Al(PO4)7:Ce3+,Dy3+ 的制备与发光性能[J]. 发光学报, 2013,34(4): 395-399 DOI： 10.3788/fgxb20133404.0395.

YANG Zhi-ping, LYU Liang, LIU Peng-fei, ZHAO Yin-hong, WANG Can, LIU Li-peng. Synthesis and Luminescent Properties of The Single White Emitting Phosphor Ca9Al(PO4)7:Ce3+,Dy3+[J]. Chinese Journal of Luminescence, 2013,34(4): 395-399 DOI： 10.3788/fgxb20133404.0395.

摘要

采用高温固相法在还原气氛下合成了Ca

9(1-

x-y

)

Al(PO

)

荧光材料

并对其发光特性进行了研究。XRD测试表明所合成样品为纯相Ca

Al(PO

)

晶体。在268 nm紫外光激发下

Al(PO

)

:Ce

呈现峰值位于363 nm的宽带发射。在350 nm近紫外光激发下

Al(PO

)

:Dy

发射光谱为窄带谱

主峰分别位于483 nm和574 nm

对应Dy

的

9/2

15/2

和

9/2

13/2

特征跃迁

呈黄白光发射。荧光光谱表明:Ce

共掺之后

不仅对Dy

的特征发射有明显的敏化作用

而且通过调节Ce

和Dy

的掺杂比例

可实现从黄白光到白光的颜色变化。研究发现:Ca

9(1-

x-y

)

Al(PO

)

样品中

掺杂离子的最佳摩尔分数为

=0.02

此时色坐标为(0.306

0.313)。

Abstract

Phosphors Ca

9(1-

x-y

)

Al(PO

)

were synthesized by solid-state reaction method at high temperature under a reducing atmosphere of CO

and the luminescent properties of the phosphors were investigated. The X-ray diffraction patterns (XRD) show that a pure phase of Ca

Al(PO

)

phosphor has been obtained after calcined at 1 200℃. Under 268 nm excitation

the Ca

Al(PO

)

:Ce

sample exhibits a broad emission band centered at 363 nm. The emission spectrum of Ca

Al(PO

)

:Dy

sample under 350 nm excitation shows two characteristic emissions of Dy

located at 483 nm and 574 nm

corresponding with

9/2

15/2

and

9/2

13/2

transition

respectively. According to the fluorescence spectra

the characteristic emissions of Dy

are significantly sensitized by Ce

when the Ca

Al(PO

)

samples are co-doped with Ce

and Dy

. Adjusting the concentration of Ce

and Dy

the color of the phosphors can change from yellowish-white to white. The results indicate that the optimal mole fractions of Ce

and Dy

in Ca

9(1-

x-y

)

Al(PO

)

are

=0.02 and

=0.02

and the chromaticity coordinate is (0.306

0.313).

关键词

Keywords

references

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