期刊
JOURNAL OF LUMINESCENCE
卷 237, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jlumin.2021.118142
关键词
Optical thermometry; FIR; Fluorescence lifetime; Dual-mode; High sensitivity
类别
资金
- Natural Science Foundation of Zhejiang Province [LY19E020005, LZ21A040003, LY20F050007]
- Fundamental Research Funds for the Provincial Universities of Zhejiang [2020YW21]
- Preeminence Youth Science Funds of Zhejiang Province [LR19F050001]
- National Natural Science Foundation of China [51832005, 62075203, 51702339]
- National Key RD Plan [2017YFB0403100, 2017YFB0403105]
A series of Eu2+/Cr3+ co-doped BaAl12O19 phosphor was synthesized via traditional high temperature solid stated method, with research on its temperature-sensitive characteristic. The phosphor can be used for thermometry based on fluorescence intensity ratio, utilizing the emissions of Eu2+ ion and Cr3+ ion separated well. Its dual-mode optical thermometry has potential application prospects in the field of optical thermometry.
A series of Eu2+/Cr3+ co-doped BaAl12O19 phosphor was synthesized by traditional high temperature solid stated method, and the temperature-sensitive characteristic of the phosphor was researched. Due to the temperature sensitivity of the fluorescence lifetime of Cr3+, the thermometry based on fluorescence lifetime can be realized. Furthermore, the emissions of Eu2+ ion and Cr3+ ion can be well separated, which shows the excellent signal recognition ability of this phosphor. The Eu2+/Cr3+ co-doped BaAl12O19 phosphor can be used for the thermometry based on fluorescence intensity ratio. A dual-mode optical thermometry is proposed and researched in the temperature range of 293-563 K by using the decay lifetime of Cr3+ emission and in the temperature range of 295-476 K by using the fluorescence intensity ratio of Eu2+ to Cr3+as temperature readout. The maximum values of relative sensitivity are 0.466% K-1 at 363 K and 0.259% K-1 at 476 K. The Eu2+/Cr3+ co-doped BaAl12O19 phosphor has excellent optical temperature characteristic, and its dual-mode thermometry characteristics provide convenience for the application of this material. This phosphor has potential application prospects in the field of optical thermometry.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据