Synthesis and Luminescence Properties of Sr3(BN2)2 Phosphor

Yi-zhi MA; Xiang LI; Da-hai HU; Xin-ran WANG; Feng-xiang WANG; Ke-fu CHAO; Si-chao-lu HA

doi:10.37188/CJL.20200361

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Synthesis and Luminescence Properties of Sr₃(BN₂)₂ Phosphor

Synthesis and Properties of Materials | 更新时间：2021-04-23

- Synthesis and Luminescence Properties of Sr₃(BN₂)₂ Phosphor
- Chinese Journal of Luminescence Vol. 42, Issue 4, Pages: 470-477(2021)
- 作者机构：
  
  1.内蒙古师范大学物理与电子学院，内蒙古　呼和浩特　 010022
  2.内蒙古自治区功能材料物理与化学重点实验室，内蒙古　呼和浩特　 010022
- 作者简介：
- 基金信息：
  
  Inner Mongolia Natural Science Foundation(2019MS05030);Science and Technology Plan of The Inner Mongolia Autonomous Region(2019GG263);Research and Innovation Fund for Postgraduates of Inner Mongolia Normal University(CXJJS19111)
- DOI：10.37188/CJL.20200361
  CLC： O482.31
- Published：01 April 2021，
  
  Received：30 November 2020，
  
  Revised：23 December 2020，
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Yi-zhi MA, Xiang LI, Da-hai HU, et al. Synthesis and Luminescence Properties of Sr₃(BN₂)₂ Phosphor. [J]. Chinese Journal of Luminescence 42(4):470-477(2021)
DOI：

Yi-zhi MA, Xiang LI, Da-hai HU, et al. Synthesis and Luminescence Properties of Sr₃(BN₂)₂ Phosphor. [J]. Chinese Journal of Luminescence 42(4):470-477(2021) DOI： 10.37188/CJL.20200361.

摘要

采用高温固相一步法合成了新型荧光粉Sr

(BN

)

(以下简写为SBN)。采用 X 射线衍射、扫描电子显微镜、荧光分光光度计对荧光粉的相组成、形貌和发光性能进行表征。讨论了SBN荧光粉的缺陷发光机理和长余辉特性。结果表明，所制备的样品SBN晶体为立方晶系

-3

。在紫外区域有较宽的激发带，发射光谱峰值位于525 nm，半峰宽为3 334 cm

-1

。SBN荧光粉材料存在本征缺陷，在基质中形成了Sr的空位，在光激励下形成发光中心。进一步的余辉衰减曲线与热释光曲线也证实，该材料存在固有缺陷，其余辉时间约10 s。变温光谱显示，当温度达到150 ℃时，荧光强度是室温初始强度的43%，优于稀土掺杂硼氮化物衰减到10%的结果。SBN荧光粉具有合成工艺简单、结构稳定、紫外波段激发获得长余辉绿光发射等优异性能，在LED发光器和指示方面具有潜在的应用前景。

Abstract

A new type of phosphor Sr

(BN

)

(hereinafter abbreviated as SBN) was synthesized by high temperature solid phase one-step method. The phase composition

morphology and luminescent properties of the phosphor were characterized by X-ray diffraction

scanning electron microscopy and fluorescence spectrophotometer. The defect luminescence mechanism and long afterglow characteristics of SBN phosphors were discussed. The results show that the prepared sample SBN crystals is cubic crystal system

Im-

. The results show that there is a wide excitation band in the ultraviolet region

and the emission spectrum peak is at 525 nm

and the half peak width is 3 334 cm

-1

. The SBN phosphor material has inherent defects. Sr vacancies are formed in the matrix

and the luminous center is formed under light excitation. Further decay curve and thermoluminescence curve also confirm that the material has inherent defects

and the afterglow time is about 10 s. The variable temperature spectrum shows that when the temperature reaches 150 ℃

the fluorescence intensity is 43% of the initial intensity at room temperature

which is better than the 10% attenuation result of rare earth doped boron nitride. The SBN phosphor has a simple synthesis process

a stable structure

and excellent performance such as long afterglow green light emission obtained by ultraviolet wavelength excitation

and has potential application prospects in white light LED lighting and indication.

关键词

Sr3(BN2)2缺陷发光材料长余辉发光机理

Keywords

Sr3(BN2)2defective luminescent materiallong afterglowluminescence mechanism

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Related Author

Yi-zhi MA

Xiang LI

DA-hai HU

Xin-ran WANG

Feng-xiang WANG

Ke-fu CHAO

Si Chao Lu HA

AN Xin

Related Institution

College of Physics andElectronic Information， Inner Mongolia Normal University

College of Materials and Chemistry & Chemical Engineering， Chengdu University of Technology

Beihai Beacon Office， South China Sea Navigation Security Center， Ministry of Transportation and Communications

Faculty of Materials Science and Engineering， Key Laboratory of Advanced Materials of Yunnan Province， Kunming University of Science and Technology

School of Mechanical Engineering， Chengdu University

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