Preparation of Eu2+ Activated Barium Phosphosilicate Phosphors with Two-color Emission by A New Two-step Method

CHENG Zhi-yuan; ZHANG Yan-jie; YU Jing-jie; LI De-sheng; CAO Guan-ying; ZHAO Zuo-ren

doi:10.3788/fgxb20173807.0874

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Preparation of Eu²⁺ Activated Barium Phosphosilicate Phosphors with Two-color Emission by A New Two-step Method

更新时间：2020-08-12

- Preparation of Eu²⁺ Activated Barium Phosphosilicate Phosphors with Two-color Emission by A New Two-step Method
- Chinese Journal of Luminescence Vol. 38, Issue 7, Pages: 874-881(2017)
- 作者机构：
  
  大连工业大学光子学研究所,辽宁大连,116034
- 作者简介：
- 基金信息：
  
  Supported by Natural Science Foundation of Liaoning Province (20170540074);Start-u
- DOI：10.3788/fgxb20173807.0874
  CLC： O611.65
- Received：07 December 2016，
  
  Revised：21 January 2017，
  
  Published：05 July 2017
- 稿件说明：
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程志远, 张彦杰, 于晶杰等. 单一基质双光色Ba10-x(PO4)4(SiO4)2:xEu2+荧光粉的两步法制备与光谱调控[J]. 发光学报, 2017,38(7): 874-881

CHENG Zhi-yuan, ZHANG Yan-jie, YU Jing-jie etc. Preparation of Eu2+ Activated Barium Phosphosilicate Phosphors with Two-color Emission by A New Two-step Method[J]. Chinese Journal of Luminescence, 2017,38(7): 874-881
程志远, 张彦杰, 于晶杰等. 单一基质双光色Ba10-x(PO4)4(SiO4)2:xEu2+荧光粉的两步法制备与光谱调控[J]. 发光学报, 2017,38(7): 874-881 DOI： 10.3788/fgxb20173807.0874.

CHENG Zhi-yuan, ZHANG Yan-jie, YU Jing-jie etc. Preparation of Eu2+ Activated Barium Phosphosilicate Phosphors with Two-color Emission by A New Two-step Method[J]. Chinese Journal of Luminescence, 2017,38(7): 874-881 DOI： 10.3788/fgxb20173807.0874.

摘要

采用两步法成功合成了单一基质双光色Ba

10-x

（PO

）

（SiO

）

：

荧光粉，研究了稀土离子占据不同的晶格格位对荧光粉光谱特性的影响。结果表明：两步法合成的荧光粉发射光谱由414 nm的蓝光波带和504 nm绿光波带两种光色组成，而传统的高温固相法制备的荧光粉只有504 nm处的绿光发射。荧光粉发光性能与Eu

离子在磷灰石晶体结构中占据的晶格位置关系十分密切。两步法荧光粉双光色的形成主要是由于在第一步氧化气氛合成过程中Eu

离子取代了基质结构中的Ba

Ⅰ

和Ba

Ⅱ

两个格位的Ba

离子；在第二步还原过程结束后，Eu

离子仍然占据着两种格位，从而形成了两种具有不同配位环境的发光中心。此外，双发射峰的相对强度能够通过Eu

离子对Ba

Ⅰ

格位的取代率而调节，进而实现光谱的调变。

Abstract

A series of single phase Eu

-activated barium phosphosilicates phosphors

10-

(PO

)

(SiO

)

with apatite structure were successfully synthesized by a novel two-step method and they exhibited interesting two-color emission at 414 nm (blue) and 504 nm (green)

respectively. As a significant contrast

the phosphors prepared

via

traditional solid state reaction method

only showed single-color emission at 504 nm. The luminescent properties of these as-prepared phosphors are strongly dependent on the substitute sites of Eu

in apatite crystal structure and the two-color emission was proved due to the occupation of Eu

on two lattice sites of Ba

Ⅰ

and Ba

Ⅱ

in host material. Furthermore

the relative intensity of two emission peaks can be tuned readily

via

adjusting the substitution of Ba

Ⅰ

site by Eu

关键词

Keywords

references

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