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[1]周　佳,包　琪,戴武斌*,等.Ce3+/Tb3+双掺杂SrAl2Si2O8荧光粉的发光性能及其在测温领域的应用[J].武汉工程大学学报,2020,42(04):411-414.[doi:10.19843/j.cnki.CN42-1779/TQ.201909034]
　ZHOU Jia,BAO Qi,DAI Wubin*,et al.Optical Properties of Ce3+/Tb3+ Co-Doped SrAl2Si2O8 Phosphor for Temperature Sensing[J].Journal of Wuhan Institute of Technology,2020,42(04):411-414.[doi:10.19843/j.cnki.CN42-1779/TQ.201909034]
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Ce3+/Tb3+双掺杂SrAl2Si2O8荧光粉的发光性能及其在测温领域的应用(/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04期
页码:
411-414
栏目:
材料科学与工程
出版日期:
2021-01-28

文章信息/Info

Title:
Optical Properties of Ce3+/Tb3+ Co-Doped SrAl2Si2O8 Phosphor for Temperature Sensing
文章编号:
1674 - 2869（2020）04 - 0411 - 04
作者:
周　佳; 包　琪; 戴武斌*; 胡　金; 陈　洋; 徐　慢
武汉工程大学材料科学与工程学院，湖北 武汉 430205
Author(s):
ZHOU Jia; BAO Qi; DAI Wubin*; HU Jin; CHEN Yang; XU Man
School of Materials Science and Engineering，Wuhan Institute of Technology， Wuhan 430205， China
关键词:
SrAl2Si2O8荧光粉; 掺杂; 荧光强度比; 能量转移; 发光性能; 测温材料
Keywords:
SrAl2Si2O8 phosphor; doping; fluorescence intensity ratio; energy transfer; optical properties; temperature-measurement materials
分类号:
O482.31
DOI:
10.19843/j.cnki.CN42-1779/TQ.201909034
文献标志码:
A
摘要:
采用高温固相法在弱还原气氛下制备了系列荧光粉材料Sr1-3（x+y）/2Al2Si2O8：xCe3+，yTb3+，并通过X射线衍射（XRD）、荧光光谱和荧光强度比（FIR）测温法分析了荧光粉样品的晶体结构、发光性能及其温度传感特性。XRD分析结果表明掺杂离子Ce3+和Tb3+均占据Sr2+格位，并且掺杂少量的稀土离子不会改变基质的晶体结构。荧光光谱分析结果表明在近紫外光激发下，该双掺杂荧光粉的发射光谱显示出Ce3+和Tb3+离子的特征发射峰，最佳掺杂浓度的荧光粉化学式为Sr0.865Al2Si2O8：0.05Ce3+，0.04Tb3+。此外，在不同波长的监测下，测得的激发光谱形状十分相似，表明在该荧光粉中存在着Ce3+→Tb3+能量传递过程。FIR测温法计算结果表明该荧光粉的相对灵敏度随温度的升高而升高，在520 K时有最大值为0.022 4 K-1。研究结果表明该荧光粉具备的优异光学性能和温度传感性能使其成为一种具有应用前景的测温材料。
Abstract:
A series of Sr1-3（x+y）/2Al2Si2O8：xCe3+， yTb3+ phosphors were prepared by high temperature solid state reaction under a weak reducing atmosphere. The crystal structure，optical properties and temperature sensing performance of the phosphors were analyzed by X-ray diffraction（XRD），fluorescence spectroscopy and fluorescence intensity ratio（FIR） thermometry. The XRD results show that both Ce3+ and Tb3+ occupy the Sr2+ lattices and the crystal structure of all samples do not change with the substitution of rare earth elements. The fluorescence spectra results indicate that the phosphor shows emission peaks of Ce3+ and Tb3+ ions under the excitation of near-ultraviolet light，and the optimal doping concentration of phosphor is Sr0.865Al2Si2O8：0.05Ce3+,0.04Tb3+. In addition，the excitation spectra of the co-doped phosphor are consistent when monitored at different wavelengths， indicating that there exists Ce3+→Tb3+ energy transfer process in the phosphor. The calculation results of FIR method show that the relative sensitivity of the phosphor increases with the increase of temperature，and the maximum value achieves 0.022 4 K-1 at 520 K. The above results show that the excellent optical properties and temperature sensing performance of the phosphor make it become a promising material for temperature sensing.

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备注/Memo

备注/Memo:
收稿日期：2019-09-26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）作者简介：周　佳，硕士研究生。E-mail：[email protected]*通讯作者：戴武斌，博士，特聘教授。E-mail：[email protected]引文格式：周佳，包琪，戴武斌，等. Ce3+/Tb3+双掺杂SrAl2Si2O8荧光粉的发光性能及其在测温领域的应用［J］. 武汉工程大学学报，2020，42（4）：411-414.
更新日期/Last Update: 2020-08-13