TY  - JOUR
AU  - Marciniak, Lukasz
AU  - Piotrowski, Wojciech M.
AU  - Szalkowski, Marcin
AU  - Kinzhybalo, Vasyl V.
AU  - Drozd, Marek
AU  - Dramićanin, Miroslav
AU  - Bednarkiewicz, Artur
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9912
AB  - Currently available temperature measurements or imaging at nano-micro scale are limited to fluorescent molecules and luminescent nanocrystals, whose spectral properties respond to temperature variation. The principle of operation of these conventional temperature probes is typically related to temperature induced multiphonon quenching or temperature dependent energy transfers, therefore, above 12%/K sensitivity and high thermal resolution remain a serious challenge. Here we demonstrate a novel class of highly sensitive thermographic phosphors operating in room temperature range with sub-kelvin thermal resolution, whose temperature readings are reproducible, luminescence is photostable and brightness is not compromised by thermal quenching. Corroborated with phase transition structural characterization and high spatio-temporal temperature imaging, we demonstrated that optically active europium ions are highly and smoothly susceptible to monoclinic to tetragonal phase transition in nanocrystalline (54 ± 14 nm) LiYO2 host, which is evidenced by changed number and the splitting of Stark components as well as by smooth variation of contribution between magnetic and electric dipole transitions. Further, reducing the size of phosphor from bulk to nanocrystalline matrix, shifted the phase transition temperature from 100 °C down to room temperature. These findings provide insights into the mechanism underlaying phase transition based luminescence nanothermometry and motivate future research toward new, highly sensitive, high temporal and spatial resolution nano-thermometers aiming at precise studying heat generation or diffusion in numerous biological and technology applications.
T2  - Chemical Engineering Journal
T1  - Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition
VL  - 427
SP  - 131941
DO  - 10.1016/j.cej.2021.131941
ER  - 

@article{
author = "Marciniak, Lukasz and Piotrowski, Wojciech M. and Szalkowski, Marcin and Kinzhybalo, Vasyl V. and Drozd, Marek and Dramićanin, Miroslav and Bednarkiewicz, Artur",
year = "2022",
abstract = "Currently available temperature measurements or imaging at nano-micro scale are limited to fluorescent molecules and luminescent nanocrystals, whose spectral properties respond to temperature variation. The principle of operation of these conventional temperature probes is typically related to temperature induced multiphonon quenching or temperature dependent energy transfers, therefore, above 12%/K sensitivity and high thermal resolution remain a serious challenge. Here we demonstrate a novel class of highly sensitive thermographic phosphors operating in room temperature range with sub-kelvin thermal resolution, whose temperature readings are reproducible, luminescence is photostable and brightness is not compromised by thermal quenching. Corroborated with phase transition structural characterization and high spatio-temporal temperature imaging, we demonstrated that optically active europium ions are highly and smoothly susceptible to monoclinic to tetragonal phase transition in nanocrystalline (54 ± 14 nm) LiYO2 host, which is evidenced by changed number and the splitting of Stark components as well as by smooth variation of contribution between magnetic and electric dipole transitions. Further, reducing the size of phosphor from bulk to nanocrystalline matrix, shifted the phase transition temperature from 100 °C down to room temperature. These findings provide insights into the mechanism underlaying phase transition based luminescence nanothermometry and motivate future research toward new, highly sensitive, high temporal and spatial resolution nano-thermometers aiming at precise studying heat generation or diffusion in numerous biological and technology applications.",
journal = "Chemical Engineering Journal",
title = "Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition",
volume = "427",
pages = "131941",
doi = "10.1016/j.cej.2021.131941"
}

Marciniak, L., Piotrowski, W. M., Szalkowski, M., Kinzhybalo, V. V., Drozd, M., Dramićanin, M.,& Bednarkiewicz, A.. (2022). Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition. in Chemical Engineering Journal, 427, 131941.
https://doi.org/10.1016/j.cej.2021.131941

Marciniak L, Piotrowski WM, Szalkowski M, Kinzhybalo VV, Drozd M, Dramićanin M, Bednarkiewicz A. Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition. in Chemical Engineering Journal. 2022;427:131941.
doi:10.1016/j.cej.2021.131941 .

Marciniak, Lukasz, Piotrowski, Wojciech M., Szalkowski, Marcin, Kinzhybalo, Vasyl V., Drozd, Marek, Dramićanin, Miroslav, Bednarkiewicz, Artur, "Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition" in Chemical Engineering Journal, 427 (2022):131941,
https://doi.org/10.1016/j.cej.2021.131941 . .