Ca10Li(PO4)7：Dy3+, Ce3+材料的制备及发光性能

杨志平; 赵引红; 梁晓双; 刘鹏飞; 吕梁

doi:10.3788/fgxb20133410.1279

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Ca₁₀Li(PO₄)₇：Dy³⁺, Ce³⁺材料的制备及发光性能

材料合成及性能 | 更新时间：2020-08-12

- Ca₁₀Li(PO₄)₇：Dy³⁺, Ce³⁺材料的制备及发光性能
- Synthesis and Luminescence Properties of A Novel Ca₁₀Li(PO₄)₇：Dy³⁺, Ce³⁺ Phosphor
- 发光学报 2013年34卷第10期页码：1279-1282
- 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(51202053)();河北省自然科学基金(Q2012061)资助项目()
- DOI：10.3788/fgxb20133410.1279
  中图分类号： O482.31
- 收稿日期：2013-06-07，
  
  修回日期：2013-07-10，
  
  纸质出版日期：2013-10-10
- 稿件说明：
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杨志平, 赵引红, 梁晓双, 刘鹏飞, 吕梁. Ca10Li(PO4)7：Dy3+, Ce3+材料的制备及发光性能[J]. 发光学报, 2013,34(10): 1279-1282

YANG Zhi-ping, ZHAO Yin-hong, LIANG Xiao-shuang, LIU Peng-fei, LV Liang. Synthesis and Luminescence Properties of A Novel Ca10Li(PO4)7：Dy3+, Ce3+ Phosphor[J]. Chinese Journal of Luminescence, 2013,34(10): 1279-1282
杨志平, 赵引红, 梁晓双, 刘鹏飞, 吕梁. Ca10Li(PO4)7：Dy3+, Ce3+材料的制备及发光性能[J]. 发光学报, 2013,34(10): 1279-1282 DOI： 10.3788/fgxb20133410.1279.

YANG Zhi-ping, ZHAO Yin-hong, LIANG Xiao-shuang, LIU Peng-fei, LV Liang. Synthesis and Luminescence Properties of A Novel Ca10Li(PO4)7：Dy3+, Ce3+ Phosphor[J]. Chinese Journal of Luminescence, 2013,34(10): 1279-1282 DOI： 10.3788/fgxb20133410.1279.

摘要

采用高温固相法制备了Ca

Li(PO

)

:Dy

发光材料

研究了Dy

在Ca

Li(PO

)

基质中的发光特性。XRD测量结果表明

烧结温度为1 050℃时所制备的样品为纯相Ca

Li(PO

)

晶体。从激发谱可以看出样品主激发峰位于349 nm(

15/2

7/2

)

363 nm(

15/2

5/2

)

385 nm(

15/2

21/2

)

样品可被UV-LED管芯有效激发。发射谱由位于481 nm(蓝)和572 nm(黄)的两个峰组成

对应的能级跃迁为

9/2

15/2

、

13/2

。研究了不同Dy

掺杂浓度对发光强度的影响

当Dy

的摩尔分数为10%时发光最强。掺入Ce

作为敏化剂

发生共振能量传递

当掺杂量为10%Dy

、14%Ce

时

样品发光最强

其强度为单掺10%Dy

时的13.4倍

发光颜色由黄白变为蓝白。

Abstract

A novel Ca

Li(PO

)

:Dy

phosphor was prepared by solid state reaction method

and its luminescence properties were studied. XRD results showed that 1 050℃ was a suitable sintered temperature for preparation of Ca

Li(PO

)

:Dy

phosphors. The main excitation peaks were located at 349 nm (

15/2

7/2

)

363 nm (

15/2

5/2

) and 385 nm (

15/2

21/2

). The sample can be excited by UV-LED. The emission spectra composed two peaks

which were located at 481 nm (blue) and 572 nm (yellow)

corresponding to the

9/2

15/2

、

13/2

typical transition of Dy

.The influence of doped Dy

concentration on the luminescent intensity of Ca

Li(PO

)

:Dy

was investigated. The relative intensity of Ca

Li(PO

)

:Dy

sample reached the maximum value when Dy

mole fraction was 10%. The intensities increased with Ce

mole fraction. The relative intensity of the sample reached the maximum value when Dy

mole fraction was 10%

mole fraction was 14%. The intensity is 13.4 times higher than the original. The color of the phosphor was changed from yellow-white to blue-white.

关键词

Keywords

references

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