Synthesis and Luminescence Properties of K2ZnSiO4:Eu3+ Red Phosphor

YANG Zhi-ping; RAN Zheng-rui; WANG Tian-yang; HOU Chun-cai; DONG Hong-yan

doi:10.3788/fgxb20153604.0377

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Synthesis and Luminescence Properties of K₂ZnSiO₄:Eu³⁺ Red Phosphor

更新时间：2020-08-12

- Synthesis and Luminescence Properties of K₂ZnSiO₄:Eu³⁺ Red Phosphor
- Chinese Journal of Luminescence Vol. 36, Issue 4, Pages: 377-381(2015)
- 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：
- DOI：10.3788/fgxb20153604.0377
  CLC： O482.31
- Received：07 January 2015，
  
  Revised：06 February 2015，
  
  Published：03 April 2015
- 稿件说明：
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杨志平, 冉争瑞, 王天洋等. K2ZnSiO4:Eu3+红色荧光粉的制备及发光性能[J]. 发光学报, 2015,36(4): 377-381

YANG Zhi-ping, RAN Zheng-rui, WANG Tian-yang etc. Synthesis and Luminescence Properties of K2ZnSiO4:Eu3+ Red Phosphor[J]. Chinese Journal of Luminescence, 2015,36(4): 377-381
杨志平, 冉争瑞, 王天洋等. K2ZnSiO4:Eu3+红色荧光粉的制备及发光性能[J]. 发光学报, 2015,36(4): 377-381 DOI： 10.3788/fgxb20153604.0377.

YANG Zhi-ping, RAN Zheng-rui, WANG Tian-yang etc. Synthesis and Luminescence Properties of K2ZnSiO4:Eu3+ Red Phosphor[J]. Chinese Journal of Luminescence, 2015,36(4): 377-381 DOI： 10.3788/fgxb20153604.0377.

摘要

采用高温固相法合成了适合近紫外光、蓝光激发的K

ZnSiO

:Eu

红色荧光粉

研究了该荧光粉的发光特性。XRD结果显示

所合成的荧光粉主晶相为K

ZnSiO

。样品的激发光谱由O

电荷迁移带(200~350 nm)和Eu

离子的特征激发峰(350~500 nm)组成

最强峰位于396 nm

次强峰位于466 nm。在396 nm和466 nm激发下

样品均呈多峰发射

分别由Eu

离子的

(

= 0

4)能级跃迁产生

其中619 nm处峰值最大。增加Eu

离子的掺杂浓度

荧光粉的发光逐渐增强。在实验测定的浓度范围内

未出现浓度猝灭现象。不同Eu

浓度样品的色坐标均位于色品图红光区

非常接近NTSC标准。

Abstract

The red phosphor K

ZnSiO

:Eu

which could be effectively excited by ultraviolet and blue light was synthesized by high temperature solid state reaction

and its luminescent characteristics were also investigated. The principal crystalline phase of the samples is K

ZnSiO

. The excitation spectra of the sample consist of O

charge transitions (200-350 nm) and Eu

ion excitation peak (350-500 nm). The maximum peak appears at 396 nm and the second peak appears at 466 nm. The phosphor presents several emission peaks under 396 nm and 466 nm excitation

which correspond to the

(

= 0

4)transition of Eu

respectively

and the strongest emission is located at 619 nm. The luminescent intensity increases with the increasing of Eu

content. The concentration quenching does not occur. The CIE coordinates of K

ZnSiO

:Eu

are very close to the NTSC standard.

关键词

Keywords

references

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