Journal of Alloys and Compounds, volume 924, pages 166421

Lanthanide complexes for elevated temperature luminescence thermometry: Mixture vs bimetallic compound

Publication typeJournal Article
Publication date2022-11-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor6.2
ISSN09258388
Materials Chemistry
Metals and Alloys
Mechanical Engineering
Mechanics of Materials
Abstract
For the first time we demonstrated the superiority of the mixture of monometallic compounds over the bimetallic ones for the use in luminescence thermometers in terms of temperature sensitivity. This was derived analytically and confirmed experimentally using a pair of composites 20[4Tb(Bz) 3 Phen+ 1Eu(Bz) 3 Phen]:80PS and 20Tb 0.995 Eu 0.005 (Bz) 3 Phen:80PS with identical spectra at the room temperature (Bz – benzoate, Phen – o- phenanthroline, PS – polystyrene). The tests within the range of 30–200 °C revealed that the temperature sensitivity of the 20[4Tb(Bz) 3 Phen+ 1Eu(Bz) 3 Phen]:80PS is higher at each temperature point than the sensitivity of the 20Tb 0.995 Eu 0.005 (Bz) 3 Phen:80PS, reaching S r mix = 4.8 % / ℃ and S r bim = 3.0 % / ℃ , correspondingly, in accordance with the analytical description. • An analytical description of luminescent thermometry materials based on terbium and europium complexes was derived. • It demonstrated that the temperature sensitivity of a mixture is higher at any temperature than of a bimetallic complex. • The proposed theory was successfull verified using Tb-Eu benzoates with phenanthroline in polystyrene.

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Vialtsev M. B. et al. Lanthanide complexes for elevated temperature luminescence thermometry: Mixture vs bimetallic compound // Journal of Alloys and Compounds. 2022. Vol. 924. p. 166421.
GOST all authors (up to 50) Copy
Vialtsev M. B., Tcelykh L. O., Bobrovsky A., Utochnikova V. Lanthanide complexes for elevated temperature luminescence thermometry: Mixture vs bimetallic compound // Journal of Alloys and Compounds. 2022. Vol. 924. p. 166421.
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RIS Copy
TY - JOUR
DO - 10.1016/j.jallcom.2022.166421
UR - https://doi.org/10.1016%2Fj.jallcom.2022.166421
TI - Lanthanide complexes for elevated temperature luminescence thermometry: Mixture vs bimetallic compound
T2 - Journal of Alloys and Compounds
AU - Vialtsev, Mikhail B
AU - Tcelykh, Liubov O
AU - Bobrovsky, Alexey
AU - Utochnikova, Valentina
PY - 2022
DA - 2022/11/01 00:00:00
PB - Elsevier
SP - 166421
VL - 924
SN - 0925-8388
ER -
BibTex
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BibTex Copy
@article{2022_Vialtsev,
author = {Mikhail B Vialtsev and Liubov O Tcelykh and Alexey Bobrovsky and Valentina Utochnikova},
title = {Lanthanide complexes for elevated temperature luminescence thermometry: Mixture vs bimetallic compound},
journal = {Journal of Alloys and Compounds},
year = {2022},
volume = {924},
publisher = {Elsevier},
month = {nov},
url = {https://doi.org/10.1016%2Fj.jallcom.2022.166421},
pages = {166421},
doi = {10.1016/j.jallcom.2022.166421}
}
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