Journal
OPTICAL MATERIALS
Volume 136, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2022.113355
Keywords
Perovskite; Cs2ZrCl6; Te4+; Optical temperature sensing
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This study introduces a novel Te4+ doped Cs2ZrCl6 microcrystal that exhibits high sensitivity for temperature sensing at low temperatures. The experiments demonstrate significant differences in temperature-dependent emission behaviors between the Cs2ZrCl6 host and the Te4+ luminescent center, leading to the design of a novel fluorescence intensity ratio thermometry. The maximum absolute and relative temperature sensitivity can reach as high as 0.7378 K-1 and 1.966% K-1 at 85 K, respectively.
Exploring new optical thermometric materials is of great significance for realizing high-precision temperature detection. This work reports a novel Te4+ doped Cs2ZrCl6 microcrystal with high sensitivity for temperature sensing at low temperature. Experiments demonstrate that the temperature-dependent emission behaviors of the Cs2ZrCl6 host and the Te4+ luminescent center are significantly different, which enables the design of a novel fluorescence intensity ratio thermometry. The maximum absolute and relative temperature sensitivity can reach as high as 0.7378 K-1 and 1.966% K-1 at 85 K, respectively. We believe that this work will provide a new path for advances in non-contact optical thermometry materials.
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