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[1]黄　珂,包　琪,樊烨明,等.BaMgSiO4：Eu荧光粉的制备及光学性能[J].武汉工程大学学报,2020,42(03):312-315,326.[doi:10.19843/j.cnki.CN42-1779/TQ.201910036]
　HUANG Ke,BAO Qi,FAN Yeming,et al.Preparation and Optical Properties of BaMgSiO4： Eu Phosphor[J].Journal of Wuhan Institute of Technology,2020,42(03):312-315,326.[doi:10.19843/j.cnki.CN42-1779/TQ.201910036]
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BaMgSiO4：Eu荧光粉的制备及光学性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
42
期数:
2020年03期
页码:
312-315,326
栏目:
材料科学与工程
出版日期:
2023-03-14

文章信息/Info

Title:
Preparation and Optical Properties of BaMgSiO4： Eu Phosphor
文章编号:
1674 - 2869（2020）03 - 0312 - 04
作者:
黄　珂; 包　琪; 樊烨明; 周　佳; 王树林; 徐　慢; 戴武斌*
湖北省环境材料与膜技术工程技术研究中心，武汉工程大学材料科学与工程学院，湖北 武汉 430205
Author(s):
HUANG Ke; BAO Qi; FAN Yeming; ZHOU Jia; WANG Shulin; XU Man; DAI Wubin*
Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province，School of Materials Science and Engineering，Wuhan Institute of Technology，Wuhan 430205，China
关键词:
荧光粉; 鳞石英衍生物; 光学性能; 高温固相法; 自还原; 余辉时间; 氧空位
Keywords:
fluorescent powder; stuffed tridymite; optical property; high temperature solid-state method; self-reduction; afterglow time; oxygen vacancy
分类号:
O482.31
DOI:
10.19843/j.cnki.CN42-1779/TQ.201910036
文献标志码:
A
摘要:
为研究鳞石英衍生物BaMgSiO4：Eu（BMSO：Eu）荧光粉的光学性能，采用传统高温固相法在不同合成气氛下制备了BMSO：Eu和BMSO：Eu2+荧光粉样品。利用X射线衍射仪（XRD）、荧光分光光度计和电子自旋共振（ESR）光谱仪分别对BMSO：Eu和BMSO：Eu2+荧光粉的晶体结构、发光性能和缺陷类型进行了表征。XRD结果表明，晶格内存在3种等量的Ba2+位点，Eu2+/3+取代Ba2+位点且形成单相。荧光光谱表明，在还原气氛下制备的BMSO：Eu2+的激发光谱位于250~380 nm之间，发射光谱位于360~650 nm之间。由于存在自还原现象，在空气气氛下制备的BMSO：Eu的激发和发射光谱同时包括Eu3+和Eu2+光谱。由于氧空位的浓度不同，BMSO：Eu2+的余辉时间是BMSO：Eu的24倍。ESR实验表明BMSO：Eu2+中的氧空位多于BMSO：Eu。绿色长余辉发光表明该类荧光粉在白光LED器件上具有潜在的应用。
Abstract:
To study the optical properties of the stuffed tridymite BaMgSiO4：Eu（BMSO：Eu） phosphor，BMSO：Eu and BMSO： Eu2+ phosphor samples were prepared by traditional high temperature solid-state method in different synthesis atmospheres. The crystal structures，luminescence properties and defect types of BMSO：Eu and BMSO：Eu2+ phosphors were characterized by X-ray diffraction （XRD）， fluorescence spectroscopy and electron spin resonance spectroscopy，respectively. XRD results show that three equal amounts of Ba2+ sites exist in the lattice，and Eu2+/3+ replace the Ba2+ sites and form a single phase. Fluorescence spectra indicate that the excitation spectrum of BMSO：Eu2+ prepared in a reducing atmosphere is between 250 and 380 nm， and the emission band is located in the range from 360 to 650 nm, respectively. The excitation and emission spectra of BMSO：Eu prepared in an air atmosphere include both Eu3+ and Eu2+ spectra due to the self-reduction phenomenon. The afterglow time of BMSO：Eu2+ is 24 times longer than that of BMSO： Eu due to different concentrations of oxygen vacancies. Electron spin resonance experiments show that the oxygen vacancies in BMSO： Eu2+ are more than those in BMSO：Eu. Green long afterglow luminescence indicates that the BMSO：Eu phosphor has potential applications in white light emitting diode devices.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2019-10-30基金项目：武汉工程大学博士启动基金（16QD28）；湖北省自然科学基金（18S020）；湖北省教育厅科学技术研究计划项目（18S069）；武汉工程大学第十一届研究生教育创新基金（CX2019075）作者简介：黄　珂，硕士研究生。E-mail：[email protected]*通讯作者：戴武斌，博士，特聘教授，硕士研究生导师。E-mail：[email protected]引文格式：黄珂，包琪，樊烨明，等. BaMgSiO4：Eu荧光粉的制备及光学性能［J］. 武汉工程大学学报，2020，42（3）：312-315，326.
更新日期/Last Update: 2020-07-09