Novel Thermometry Based on Fluorescence Intensity Ratio of VO4 3- and Sm3+

被引：0

作者：

Wang Y. ^{[1
]}

Qu Z. ^{[1
]}

Zhou S. ^{[1
]}

机构：

[1] School of Physics and Physical Engineering, Qufu Normal University, Qufu

来源：

Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society | 2019年 / 37卷 / 04期

关键词：

Charge transfer state; Fluorescence intensity ratio; Rare earths; Relative sensitivity; Temperature sensing; Thermal coupling;

D O I：

10.11785/S1000-4343.20190405

中图分类号：

学科分类号：

摘要：

Novel temperature sensing strategy was designed based on the fluorescence intensity ratio of VO4 3- and Sm3+ using the temperature quenching effect of the charge transfer state of VO4 3- and the thermal coupling of 4F3/2 and 4G5/2 in Sm3+. Under the excitation of 310 nm, the emission spectra of GdVO4:0.5% Sm3+ were recorded at different temperatures from 300 to 480 K. The temperature dependent intensity ratio from 535 to 450 nm was investigated. The obtained relative sensitivity SR is higher than those of temperature sensors based on the thermally coupled energy levels of Er3+ and Ho3+ in a wide temperature range. The maximal SR reaches 1.6%•K-1 at 380 K. Moreover, the origination of emissions at 480~503 nm was analyzed by investigating the emission spectra of GdVO4:5% Sm3+ at different temperatures. © 2019, Editorial Office of Journal of the Chinese Society of Rare Earths. All right reserved.

引用

页码：426 / 430

页数：4

共 18 条

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