Synthesis and Luminescence Properties of A Novel Red Sr2ZnMoO6:Sm3+ Phosphor

YANG Zhi-ping; SONG Yan-chun; HAN Yue; ZHAO Qing; PAN Fei; ZHOU Dong-zhan

doi:10.3788/fgxb20123306.0586

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Synthesis and Luminescence Properties of A Novel Red Sr₂ZnMoO₆:Sm³⁺ Phosphor

paper | 更新时间：2020-08-12

- Synthesis and Luminescence Properties of A Novel Red Sr₂ZnMoO₆:Sm³⁺ Phosphor
- Chinese Journal of Luminescence Vol. 33, Issue 6, Pages: 586-590(2012)
- 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/fgxb20123306.0586
  CLC： O482.31
- Received：28 March 2012，
  
  Revised：2012-4-12，
  
  Published Online：10 June 2012，
  
  Published：10 June 2012
- 稿件说明：
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杨志平, 宋延春, 韩月, 赵青, 潘飞, 周东站. 新型红色荧光粉Sr2ZnMoO6:Sm3+的制备与发光性能[J]. 发光学报, 2012,(6): 586-590

YANG Zhi-Peng, SONG Yan-Chun, HAN Yue, ZHAO Qing, PAN Fei, ZHOU Dong-Zhan. Synthesis and Luminescence Properties of A Novel Red Sr2ZnMoO6:Sm3+ Phosphor[J]. Chinese Journal of Luminescence, 2012,(6): 586-590
杨志平, 宋延春, 韩月, 赵青, 潘飞, 周东站. 新型红色荧光粉Sr2ZnMoO6:Sm3+的制备与发光性能[J]. 发光学报, 2012,(6): 586-590 DOI： 10.3788/fgxb20123306.0586.

YANG Zhi-Peng, SONG Yan-Chun, HAN Yue, ZHAO Qing, PAN Fei, ZHOU Dong-Zhan. Synthesis and Luminescence Properties of A Novel Red Sr2ZnMoO6:Sm3+ Phosphor[J]. Chinese Journal of Luminescence, 2012,(6): 586-590 DOI： 10.3788/fgxb20123306.0586.

摘要

采用高温固相法合成了Sr

ZnMoO

:Sm

新型红色荧光材料

并对其发光特性进行了研究。XRD测量结果表明所制备样品为纯相Sr

ZnMoO

晶体。样品的发射光谱由一系列锐谱组成

分别位于563 nm(

5/2

)、598 nm(

5/2

7/2

)、607 nm(

5/2

7/2

)和645 nm(

5/2

9/2

)

最强发射为645 nm。样品激发光谱由电荷迁移带CT和Sm

离子的特征激发峰组成

主激发峰位于284 nm(CT)和403 nm(

5/2

13/2

)。随着Sm

浓度的增大

ZnMoO

材料的发光强度先增大后减小

在

2%时

发生浓度猝灭现象。根据Dexter理论分析其猝灭机理为电偶极-电偶极相互作用。比较了Li

、Na

和K

作为电荷补偿剂的作用

发现均使Sr

ZnMoO

:Sm

材料的发射强度得到增强

但以Li

补偿效果最为显著。

Abstract

A novel red Sr

ZnMoO

:Sm

phosphor was prepared by solid state reaction method

and its luminescence properties were studied. The X-ray diffraction patterns (XRD) showed that a pure Sr

ZnMoO

phase phosphor was obtained after sintered at 1 250 ℃. The emission spectrum of the Sr

ZnMoO

:Sm

phosphor was characterized

which peaked at 563

598

607

645 nm

corresponding to the

5/2

7/2

and

5/2

9/2

transitions of Sm

respectively. The strongest one appears at 645 nm. The excitation spectrum consisted of charge transfer band (284 nm) and characteristic transition (403 nm). The concentration quenching could be observed when

was more than 2%

and it was confirmed that the mechanism of concentration quenching was electric dipole-dipole interaction by Dexter theory. Under the condition of doping charge compensation of Li

and K

the emission intensity of Sr

ZnMoO

:Sm

was improved

and it was found that Li

ions gave the best boost. These Sr

ZnMoO

:Sm

phosphors may be potentially used as red phosphors for white light-emitting diodes.

关键词

Keywords

references

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