Photoluminescence and ratiometric thermo-response of Eu2+and Eu3+in BaAl2B2O7∶Eu2+,Eu3+phosphor materials

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外文摘要：A novel Eu2+-Eu3+co-activated ratiometric thermo-sensitive phosphor was developed and synthesized by solid-state reaction.The valence state of Eu,photoluminescence and thermo-sensitive performance of the phosphor prepared either in ambient air or carbothermally were investigated and discussed.The phosphor shows high sensitivity(Sa=0.0173 K-1,Sr=0.461％/K)and superior signal discriminability(△v～10380 cm-1).The thermo-sensitive performance is subject to the dual effects of different thermo-responses by Eu2+versus Eu3+combined with energy transfer from Eu2+to Eu3+,so that the sensitivity of the phosphor in the temperature range presents a non-monotonic trend.The development of the BaAl2B2O7∶Eu2+,Eu3+phosphor is not only expected to be relevant for application in the field of tem-perature sensing,but also of reference significance for improving the sensitivity by means of energy transfer between co-activator ions over a wider temperature range of Eu2+-Eu3+co-activated ratiometric thermo-sensitive phosphors.

外文关键词：

PhotoluminescenceRatiometric thermo-responsePhosphorEu2+/Eu3+Rare earths

作者：

Ziyao Wang、Haitao Fu、Xiufeng Zhan、Bo Tong、Guofeng Ma、H.T.(Bert) Hintzen

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作者单位：

Institute of Innovative Science and Technology,Shenyang University,Shenyang,110044,China

College of Mechanical Engineering,Shenyang University,Shenyang 110044,China

Faculty of Applied Sciences,Delft University of Technology,2629 JB,Delft,the Netherlands

基金：

Central Funding Project for Local Science and Technology DevelopmentNational Natural Science Foundation of ChinaShenyang Science and Technology Plan Project

项目编号：

2022JH6/1001000485210303820-202-1-12

出版年：

2024

DOI：

10.1016/j.jre.2023.06.017

稀土学报(英文版)

中国稀土学会

稀土学报(英文版)

CSTPCDEI

影响因子：1.3

ISSN：1002-0721

年,卷(期)：2024.42(7)