Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 9, Issue 42, Pages 15112-15120Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1tc03330a
Keywords
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Funding
- National Key R&D Program of China [2017YFB0403200]
- Pearl River Talent Recruitment Program [2019ZT08C321]
- SSL Innovation Model Factory Project [Y9D1011L211]
- Guangdong Basic and Applied Basic Research Foundation [2019A1515110443, 2020A1515110652]
- National Natural Science Foundation of China [51872327]
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This study presents a method to address the temperature range limitation of luminescence thermometers, achieving an ultra-wide temperature range luminescence thermometer with high sensitivity. The study demonstrates the use of Pr3+-doped Ba(Zr0.16Mg0.28Ta0.56)O-3 transparent ceramic for optical temperature sensing, showing superior performance compared to existing luminescence temperature measurement ceramics.
Owing to the impact of robust thermal quenching, lanthanide-based luminescence thermometer operation can usually only be achieved within a comparatively small temperature scope (ambient temperature to 800 K). Here, this study presents a method for addressing the mentioned limits, and a luminescence thermometer with an ultra-wide temperature range has been achieved, which adopted Pr3+-doped Ba(Zr0.16Mg0.28Ta0.56)O-3 transparent ceramic to be the optical temperature probe. Based on the high luminescence intensity and excellent thermal stability of the P-3(0)-F-3(2) hypersensitive transition of Pr3+ in Ba(Zr0.16Mg0.28Ta0.56)O-3 transparent ceramic, the intensity ratio of the emissions at 624 nm and 649 nm was employed for temperature sensing in an ultra-wide range (293-873 K), and the maximal relative sensitivity reached 1.05% K-1, outperforming most existing luminescence temperature measurement transparent ceramics. Furthermore, in Pr3+-doped Ba(Zr0.16Mg0.28Ta0.56)O-3 transparent ceramic, the lifetime of the P-3(0)-H-3(4) transition also exhibits prominent optical thermometry performance (303-873 K). The results presented in this work may be of high significance for the design of novel ratiometric/lifetime dual-mode optical temperature sensors in the high-temperature measurement field.
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