Optical Storage Characteristics of Sr2SiO4∶Eu2+,Dy3+

Qiong ZHOU; Xian-guo MENG; Ying-chao XU; Chun-hui LIU; Pan-pan WU; Ming-ming WANG; Xiang-yu LIN

doi:10.37188/CJL.20210255

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Optical Storage Characteristics of Sr₂SiO₄∶Eu²⁺,Dy³⁺

Synthesis and Properties of Materials | 更新时间：2021-11-23

- Optical Storage Characteristics of Sr₂SiO₄∶Eu²⁺,Dy³⁺
  增强出版
- Chinese Journal of Luminescence Vol. 42, Issue 11, Pages: 1774-1780(2021)
- 作者机构：
  
  1.厦门理工学院　光电与通信工程学院，福建　厦门　361024
  2.厦门理工学院　福建省光电技术与器件重点实验室，福建　厦门　361024
- 作者简介：
- 基金信息：
  
  General Project of Fujian Natural Science Foundation(2019J01876);Major Project of Xiamen Science and Technology Plan(3502ZCQ20191002);Scientific Research Climbing Project of Xiamen University of Technology(XPDKT20009)
- DOI：10.37188/CJL.20210255
  CLC： O482.31
- Received：10 August 2021，
  
  Revised：26 August 2021，
  
  Published：01 November 2021
- 稿件说明：
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Qiong ZHOU, Xian-guo MENG, Ying-chao XU, et al. Optical Storage Characteristics of Sr₂SiO₄∶Eu²⁺,Dy³⁺[J]. Chinese journal of luminescence, 2021, 42(11): 1774-1780.
DOI：

Qiong ZHOU, Xian-guo MENG, Ying-chao XU, et al. Optical Storage Characteristics of Sr₂SiO₄∶Eu²⁺,Dy³⁺[J]. Chinese journal of luminescence, 2021, 42(11): 1774-1780. DOI： 10.37188/CJL.20210255.

摘要

通过还原气氛下的高温固相反应制备了Sr

1.994-

SiO

∶0.006Eu

(

=0.001~0.006)荧光粉。利用X射线衍射仪(XRD)和荧光分光光度计分析了Sr

1.994-

SiO

∶0.006Eu

荧光粉的晶体结构和发光性能，通过光致发光(PL)谱和光激励发光(PSL)谱表明所有的发光中心都来源于Eu

离子。在320 nm和365 nm激发下，可以观察到以470 nm为中心的蓝光发射和530 nm为中心的绿光发射。热释光测试证明，Sr

1.994-

SiO

∶0.006Eu

材料的俘获陷阱深，室温下受热扰动影响小，在800 nm红外光激发下，被俘获的电子释放，在发光中心中与空穴复合发光。在254 nm紫外线照射0.5 h后，用980 nm红外激光器照射，可以观察到绿色的光激励发光，结果表明Sr

1.994-

SiO

∶0.006Eu

具有光存储特性。

Abstract

1.994-

SiO

∶0.006Eu

(

=0.001-0.006) phosphors were prepared by high-temperature solid-state reaction in a reducing atmosphere. The crystal structure and photoluminescence(PL) properties of Sr

1.994-

SiO

∶0.006Eu

phosphors were investigated with X-ray diffractomer(XRD) and spectrophotometer. The PL spectra and photostimulated luminescence(PSL) spectra show that all the luminescence centers are derived from Eu

ions. Under the excitation of 320 nm and 365 nm

blue light emission centered at 470 nm and green light emission centered at 530 nm can be observed. The thermoluminescence test proved that the trap of Sr

1.994-

SiO

∶0.006Eu

material is deep

and it is less affected by thermal disturbance at room temperature. Under the excitation of 800 nm infrared light

the trapped electrons are released and interact with holes in the luminescent center. After irradiated by 254 nm UV for 0.5 h

and stimulated with a 980 nm infrared laser

the phosphors exhibit obvious green PSL. The results show that Sr

1.994-

-SiO

∶0.006Eu

has optical storage characteristics.

关键词

Keywords

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Related Institution

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Research Institute of Changchun University of Science and Technology in Chongqing

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