TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Szymczak, Maja
AU  - Rodríguez, Emma Martín
AU  - Marin, Riccardo
AU  - Henklewska, Marta
AU  - Poźniak, Błażej
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11929
AB  - The increasing popularity of luminescent nanothermometry in recent years can be attributed to its application potential in biomedicine. In response to this need, we describe a biocompatible bimodal luminescent thermometer that operates in ratiometric and luminescence lifetime modes based on particles of MgTiO3:Cr3+,Nd3+@SiO2. The introduction of Cr3+ and Nd3+ dopants enabled the luminescence of Ti3+ ions to be observed, and the difference in the thermal quenching rates of Cr3+ (4T2→4A2), Ti3+ (2T2→2E) and Nd3+ (4F3/2 → 4I11/2) ions enabled the ratiometric thermometers. The highest sensitivity reaching SR = 1.00%K−1 was obtained for MgTiO3:0.1 % Cr3+, 0.1 % Nd3+ at 203 K. The shortening of the lifetime of the 4T2 level of Cr3+ ions associated with its thermal depopulation allows to develop a lifetime-based thermometer with a relative sensitivity reaching 0.85–1.18%K−1 in the physiological temperature range. The deposition of a SiO2 shell on a MgTiO3:Cr3+,Nd3+ did not introduce significant changes in the shape of the emission spectrum and slightly elongates the lifetime by reducing the probability of surface-related nonradiative processes. More importantly, the thermometric performance of this luminescence thermometer was preserved. The low cytotoxicity of the obtained materials underlines their potential in bioapplications of the described luminescent thermometers.
T2  - Materials Chemistry and Physics
T1  - Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications
VL  - 312
SP  - 128623
DO  - 10.1016/j.matchemphys.2023.128623
ER  - 

@article{
author = "Piotrowski, Wojciech M. and Szymczak, Maja and Rodríguez, Emma Martín and Marin, Riccardo and Henklewska, Marta and Poźniak, Błażej and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2024",
abstract = "The increasing popularity of luminescent nanothermometry in recent years can be attributed to its application potential in biomedicine. In response to this need, we describe a biocompatible bimodal luminescent thermometer that operates in ratiometric and luminescence lifetime modes based on particles of MgTiO3:Cr3+,Nd3+@SiO2. The introduction of Cr3+ and Nd3+ dopants enabled the luminescence of Ti3+ ions to be observed, and the difference in the thermal quenching rates of Cr3+ (4T2→4A2), Ti3+ (2T2→2E) and Nd3+ (4F3/2 → 4I11/2) ions enabled the ratiometric thermometers. The highest sensitivity reaching SR = 1.00%K−1 was obtained for MgTiO3:0.1 % Cr3+, 0.1 % Nd3+ at 203 K. The shortening of the lifetime of the 4T2 level of Cr3+ ions associated with its thermal depopulation allows to develop a lifetime-based thermometer with a relative sensitivity reaching 0.85–1.18%K−1 in the physiological temperature range. The deposition of a SiO2 shell on a MgTiO3:Cr3+,Nd3+ did not introduce significant changes in the shape of the emission spectrum and slightly elongates the lifetime by reducing the probability of surface-related nonradiative processes. More importantly, the thermometric performance of this luminescence thermometer was preserved. The low cytotoxicity of the obtained materials underlines their potential in bioapplications of the described luminescent thermometers.",
journal = "Materials Chemistry and Physics",
title = "Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications",
volume = "312",
pages = "128623",
doi = "10.1016/j.matchemphys.2023.128623"
}

Piotrowski, W. M., Szymczak, M., Rodríguez, E. M., Marin, R., Henklewska, M., Poźniak, B., Dramićanin, M.,& Marciniak, L.. (2024). Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications. in Materials Chemistry and Physics, 312, 128623.
https://doi.org/10.1016/j.matchemphys.2023.128623

Piotrowski WM, Szymczak M, Rodríguez EM, Marin R, Henklewska M, Poźniak B, Dramićanin M, Marciniak L. Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications. in Materials Chemistry and Physics. 2024;312:128623.
doi:10.1016/j.matchemphys.2023.128623 .

Piotrowski, Wojciech M., Szymczak, Maja, Rodríguez, Emma Martín, Marin, Riccardo, Henklewska, Marta, Poźniak, Błażej, Dramićanin, Miroslav, Marciniak, Lukasz, "Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications" in Materials Chemistry and Physics, 312 (2024):128623,
https://doi.org/10.1016/j.matchemphys.2023.128623 . .

TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Marin, Riccardo
AU  - Szymczak, Maja
AU  - Martín Rodríguez, Emma
AU  - Ortgies, Dirk H.
AU  - Rodríguez-Sevilla, Paloma
AU  - Dramićanin, Miroslav
AU  - Jaque, Daniel
AU  - Marciniak, Lukasz
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10546
AB  - Lifetime-based luminescence thermometry has been shown to enable accurate deep-tissue monitoring of temperature changes – even at the in vivo level – in a minimally invasive way. However, major limiting factors to the performance of this approach are short lifetimes and poor brightness. These are characteristics, respectively, of semiconductor nanocrystals and lanthanide-doped nanoparticles, of which most luminescent nanothermometers are made. To address these limitations, the composition of luminescent nanothermometers co-doped with transition metal (Mn5+) and Er3+ ions are designed and optimized. The salient features of these nanothermometers are strong, near-infrared emission and long, temperature-dependent photoluminescence lifetime. The potential of these luminescent nanophosphors for thermal sensing is then showcased by monitoring a thermal gradient using a one-of-a-kind piece of equipment designed for lifetime-based luminescence thermometry measurements. The combination of the newly developed nanothermometers and the custom-made instrument allows for obtaining 2D thermal maps both in the absence and presence of tissue phantoms mimicking the optical properties of the skin. The results presented in this study thus provide credible foundations for the deployment of lifetime-based thermometry for accurate deep-tissue thermal mapping at the preclinical level.
T2  - Advanced Optical Materials
T1  - Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom
VL  - 11
IS  - 3
SP  - 2202366
DO  - 10.1002/adom.202202366
ER  - 

@article{
author = "Piotrowski, Wojciech M. and Marin, Riccardo and Szymczak, Maja and Martín Rodríguez, Emma and Ortgies, Dirk H. and Rodríguez-Sevilla, Paloma and Dramićanin, Miroslav and Jaque, Daniel and Marciniak, Lukasz",
year = "2023",
abstract = "Lifetime-based luminescence thermometry has been shown to enable accurate deep-tissue monitoring of temperature changes – even at the in vivo level – in a minimally invasive way. However, major limiting factors to the performance of this approach are short lifetimes and poor brightness. These are characteristics, respectively, of semiconductor nanocrystals and lanthanide-doped nanoparticles, of which most luminescent nanothermometers are made. To address these limitations, the composition of luminescent nanothermometers co-doped with transition metal (Mn5+) and Er3+ ions are designed and optimized. The salient features of these nanothermometers are strong, near-infrared emission and long, temperature-dependent photoluminescence lifetime. The potential of these luminescent nanophosphors for thermal sensing is then showcased by monitoring a thermal gradient using a one-of-a-kind piece of equipment designed for lifetime-based luminescence thermometry measurements. The combination of the newly developed nanothermometers and the custom-made instrument allows for obtaining 2D thermal maps both in the absence and presence of tissue phantoms mimicking the optical properties of the skin. The results presented in this study thus provide credible foundations for the deployment of lifetime-based thermometry for accurate deep-tissue thermal mapping at the preclinical level.",
journal = "Advanced Optical Materials",
title = "Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom",
volume = "11",
number = "3",
pages = "2202366",
doi = "10.1002/adom.202202366"
}

Piotrowski, W. M., Marin, R., Szymczak, M., Martín Rodríguez, E., Ortgies, D. H., Rodríguez-Sevilla, P., Dramićanin, M., Jaque, D.,& Marciniak, L.. (2023). Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom. in Advanced Optical Materials, 11(3), 2202366.
https://doi.org/10.1002/adom.202202366

Piotrowski WM, Marin R, Szymczak M, Martín Rodríguez E, Ortgies DH, Rodríguez-Sevilla P, Dramićanin M, Jaque D, Marciniak L. Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom. in Advanced Optical Materials. 2023;11(3):2202366.
doi:10.1002/adom.202202366 .

Piotrowski, Wojciech M., Marin, Riccardo, Szymczak, Maja, Martín Rodríguez, Emma, Ortgies, Dirk H., Rodríguez-Sevilla, Paloma, Dramićanin, Miroslav, Jaque, Daniel, Marciniak, Lukasz, "Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom" in Advanced Optical Materials, 11, no. 3 (2023):2202366,
https://doi.org/10.1002/adom.202202366 . .

TY  - JOUR
AU  - Elzbieciak-Piecka, K.
AU  - Piotrowski, Wojciech M.
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10875
AB  - Finding thermal history phosphors with high sensitivity and a consistent readout is required for reliable thermal history determination with high temperature resolution. This work presents a new thermal history phosphor based on the luminescence of Eu3+ ions in LaVO4 to meet these requirements. As demonstrated, raising the annealing temperature causes a structural phase transition from a low-temperature tetragonal phase to a high-temperature single-stranded phase. The associated change in the local point symmetry of the crystallographic site occupied by Eu3+ ions result in a significant decrease in the emission intensity ratio of the 5D0 → 7F2 band relative to the 5D0 → 7F1 band, which enables the development of the ratiometric thermal history phosphor with the relative sensitivity of 0.38% °C−1 at 800 °C. Its applicative potential for thermal history readout was proved in the proof-of-concept experiment.
T2  - Dalton Transactions
T1  - Understanding the power of luminescence ratiometric thermal history indicators driven by phase transitions: the case of Eu3+ doped LaVO4
DO  - 10.1039/D3DT00601H
ER  - 

@article{
author = "Elzbieciak-Piecka, K. and Piotrowski, Wojciech M. and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2023",
abstract = "Finding thermal history phosphors with high sensitivity and a consistent readout is required for reliable thermal history determination with high temperature resolution. This work presents a new thermal history phosphor based on the luminescence of Eu3+ ions in LaVO4 to meet these requirements. As demonstrated, raising the annealing temperature causes a structural phase transition from a low-temperature tetragonal phase to a high-temperature single-stranded phase. The associated change in the local point symmetry of the crystallographic site occupied by Eu3+ ions result in a significant decrease in the emission intensity ratio of the 5D0 → 7F2 band relative to the 5D0 → 7F1 band, which enables the development of the ratiometric thermal history phosphor with the relative sensitivity of 0.38% °C−1 at 800 °C. Its applicative potential for thermal history readout was proved in the proof-of-concept experiment.",
journal = "Dalton Transactions",
title = "Understanding the power of luminescence ratiometric thermal history indicators driven by phase transitions: the case of Eu3+ doped LaVO4",
doi = "10.1039/D3DT00601H"
}

Elzbieciak-Piecka, K., Piotrowski, W. M., Dramićanin, M.,& Marciniak, L.. (2023). Understanding the power of luminescence ratiometric thermal history indicators driven by phase transitions: the case of Eu3+ doped LaVO4. in Dalton Transactions.
https://doi.org/10.1039/D3DT00601H

Elzbieciak-Piecka K, Piotrowski WM, Dramićanin M, Marciniak L. Understanding the power of luminescence ratiometric thermal history indicators driven by phase transitions: the case of Eu3+ doped LaVO4. in Dalton Transactions. 2023;.
doi:10.1039/D3DT00601H .

Elzbieciak-Piecka, K., Piotrowski, Wojciech M., Dramićanin, Miroslav, Marciniak, Lukasz, "Understanding the power of luminescence ratiometric thermal history indicators driven by phase transitions: the case of Eu3+ doped LaVO4" in Dalton Transactions (2023),
https://doi.org/10.1039/D3DT00601H . .

TY  - JOUR
AU  - Piotrowski, Wojciech Michal
AU  - Marin, Riccardo
AU  - Szymczak, Maja
AU  - Martin Rodriguez, Emma
AU  - Ortgies, Dirk H.
AU  - Rodríguez-Sevilla, Paloma
AU  - Bolek, Paulina
AU  - Dramićanin, Miroslav
AU  - Jaque, Daniel
AU  - Marciniak, Lukasz
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11082
AB  - Near-infrared (NIR) luminescence thermometry has been brought to the fore as a reliable approach for remote thermal sensing and imaging. Lanthanide (Ln3+)-based nanophosphors are often proposed as NIR nanothermometers of choice. However, the combination of Ln3+ with transition metal (TM) ions has recently emerged as a strategy to introduce additional emission bands and/or TM ↔ Ln3+ energy transfer pathways whose temperature dependence can be harnessed to increase the sensitivity of the thermometric approach. Yet, the examples of the combination of luminescence nanothermometers working in the NIR and hosting simultaneously TM and Ln3+ are scarce, leaving plenty of space for the exploration of these systems. Herein, we report on the preparation and optimization of the thermometric performance of Ba3(VO4)2:Mn5+,Nd3+ nanophosphors. The different temperature dependences of the emission intensity of the two doped luminescent centers allow using the ratio between Mn5+ and Nd3+ as a reliable thermometric parameter with a relative thermal sensitivity of 1% K−1 close to room temperature. We then showcase the suitability of this nanophosphor for employment in 2D NIR luminescence thermal imaging. Lastly, we critically evaluate the possibility of using this thermal imaging approach through opaque media with the help of phantoms with tissue-like optical properties. As expected, a loss of reliability of the thermometric method is observed due to tissue-induced photon scattering and absorption that differentially affect the emission of Mn5+ and Nd3+. Overall, the reported results underscore the good performance of the newly developed nanothermometer, while consolidating the call for the use of luminescence nanothermometers working in the time-domain (rather than in the spectral domain) for deep-tissue thermal readout/imaging.
T2  - Journal of Materials Chemistry C
T1  - Critical evaluation of the thermometric performance of ratiometric luminescence thermometers based on Ba3(VO4)2:Mn5+,Nd3+ for deep-tissue thermal imaging
VL  - 11
IS  - 20
SP  - 6713
EP  - 6723
DO  - 10.1039/D3TC00249G
ER  - 

@article{
author = "Piotrowski, Wojciech Michal and Marin, Riccardo and Szymczak, Maja and Martin Rodriguez, Emma and Ortgies, Dirk H. and Rodríguez-Sevilla, Paloma and Bolek, Paulina and Dramićanin, Miroslav and Jaque, Daniel and Marciniak, Lukasz",
year = "2023",
abstract = "Near-infrared (NIR) luminescence thermometry has been brought to the fore as a reliable approach for remote thermal sensing and imaging. Lanthanide (Ln3+)-based nanophosphors are often proposed as NIR nanothermometers of choice. However, the combination of Ln3+ with transition metal (TM) ions has recently emerged as a strategy to introduce additional emission bands and/or TM ↔ Ln3+ energy transfer pathways whose temperature dependence can be harnessed to increase the sensitivity of the thermometric approach. Yet, the examples of the combination of luminescence nanothermometers working in the NIR and hosting simultaneously TM and Ln3+ are scarce, leaving plenty of space for the exploration of these systems. Herein, we report on the preparation and optimization of the thermometric performance of Ba3(VO4)2:Mn5+,Nd3+ nanophosphors. The different temperature dependences of the emission intensity of the two doped luminescent centers allow using the ratio between Mn5+ and Nd3+ as a reliable thermometric parameter with a relative thermal sensitivity of 1% K−1 close to room temperature. We then showcase the suitability of this nanophosphor for employment in 2D NIR luminescence thermal imaging. Lastly, we critically evaluate the possibility of using this thermal imaging approach through opaque media with the help of phantoms with tissue-like optical properties. As expected, a loss of reliability of the thermometric method is observed due to tissue-induced photon scattering and absorption that differentially affect the emission of Mn5+ and Nd3+. Overall, the reported results underscore the good performance of the newly developed nanothermometer, while consolidating the call for the use of luminescence nanothermometers working in the time-domain (rather than in the spectral domain) for deep-tissue thermal readout/imaging.",
journal = "Journal of Materials Chemistry C",
title = "Critical evaluation of the thermometric performance of ratiometric luminescence thermometers based on Ba3(VO4)2:Mn5+,Nd3+ for deep-tissue thermal imaging",
volume = "11",
number = "20",
pages = "6713-6723",
doi = "10.1039/D3TC00249G"
}

Piotrowski, W. M., Marin, R., Szymczak, M., Martin Rodriguez, E., Ortgies, D. H., Rodríguez-Sevilla, P., Bolek, P., Dramićanin, M., Jaque, D.,& Marciniak, L.. (2023). Critical evaluation of the thermometric performance of ratiometric luminescence thermometers based on Ba3(VO4)2:Mn5+,Nd3+ for deep-tissue thermal imaging. in Journal of Materials Chemistry C, 11(20), 6713-6723.
https://doi.org/10.1039/D3TC00249G

Piotrowski WM, Marin R, Szymczak M, Martin Rodriguez E, Ortgies DH, Rodríguez-Sevilla P, Bolek P, Dramićanin M, Jaque D, Marciniak L. Critical evaluation of the thermometric performance of ratiometric luminescence thermometers based on Ba3(VO4)2:Mn5+,Nd3+ for deep-tissue thermal imaging. in Journal of Materials Chemistry C. 2023;11(20):6713-6723.
doi:10.1039/D3TC00249G .

Piotrowski, Wojciech Michal, Marin, Riccardo, Szymczak, Maja, Martin Rodriguez, Emma, Ortgies, Dirk H., Rodríguez-Sevilla, Paloma, Bolek, Paulina, Dramićanin, Miroslav, Jaque, Daniel, Marciniak, Lukasz, "Critical evaluation of the thermometric performance of ratiometric luminescence thermometers based on Ba3(VO4)2:Mn5+,Nd3+ for deep-tissue thermal imaging" in Journal of Materials Chemistry C, 11, no. 20 (2023):6713-6723,
https://doi.org/10.1039/D3TC00249G . .

TY  - JOUR
AU  - Szymczak, Maja
AU  - Runowski, M.
AU  - Brik, Mikhail G.
AU  - Marciniak, Lukasz
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10922
AB  - The remote pressure readout is of vital application importance as it will facilitate and in many cases enable rapid diagnostics. For most of the luminescent manometers described to date, the sensitivity of the pressure readout is limited by the relatively small pressure-induced spectral shift of the emission band. In response to this limitation, in this work, we present a super-sensitive and temperature-invariant NIR emitting luminescent manometer based on LiScGeO4:Cr3+. The 4T2→4A2 emission band of Cr3+ ions undergoes in this manometer a linear spectral shift with a rate of dλ/dp = 23.63 nm/GPa, which is the highest value reported in the literature to date. In addition, by using a ratiometric approach, this manometer has a relative sensitivity exceeding 120%/GPa. Importantly, the developed optical manometer operates in the NIR spectral region, providing good light permeability in the non-transparent systems, having high absorption in the visible range. Moreover, in the case of high-pressure luminescence experiments, the use of the developed sensor will eliminate spectral overlapping issues, as the vast majority of the organic and inorganic phosphors emitting in the visible range.
T2  - Chemical Engineering Journal
T1  - Multimodal, super-sensitive luminescent manometer based on giant pressure-induced spectral shift of Cr3+ in the NIR range
VL  - 466
SP  - 143130
DO  - 10.1016/j.cej.2023.143130
ER  - 

@article{
author = "Szymczak, Maja and Runowski, M. and Brik, Mikhail G. and Marciniak, Lukasz",
year = "2023",
abstract = "The remote pressure readout is of vital application importance as it will facilitate and in many cases enable rapid diagnostics. For most of the luminescent manometers described to date, the sensitivity of the pressure readout is limited by the relatively small pressure-induced spectral shift of the emission band. In response to this limitation, in this work, we present a super-sensitive and temperature-invariant NIR emitting luminescent manometer based on LiScGeO4:Cr3+. The 4T2→4A2 emission band of Cr3+ ions undergoes in this manometer a linear spectral shift with a rate of dλ/dp = 23.63 nm/GPa, which is the highest value reported in the literature to date. In addition, by using a ratiometric approach, this manometer has a relative sensitivity exceeding 120%/GPa. Importantly, the developed optical manometer operates in the NIR spectral region, providing good light permeability in the non-transparent systems, having high absorption in the visible range. Moreover, in the case of high-pressure luminescence experiments, the use of the developed sensor will eliminate spectral overlapping issues, as the vast majority of the organic and inorganic phosphors emitting in the visible range.",
journal = "Chemical Engineering Journal",
title = "Multimodal, super-sensitive luminescent manometer based on giant pressure-induced spectral shift of Cr3+ in the NIR range",
volume = "466",
pages = "143130",
doi = "10.1016/j.cej.2023.143130"
}

Szymczak, M., Runowski, M., Brik, M. G.,& Marciniak, L.. (2023). Multimodal, super-sensitive luminescent manometer based on giant pressure-induced spectral shift of Cr3+ in the NIR range. in Chemical Engineering Journal, 466, 143130.
https://doi.org/10.1016/j.cej.2023.143130

Szymczak M, Runowski M, Brik MG, Marciniak L. Multimodal, super-sensitive luminescent manometer based on giant pressure-induced spectral shift of Cr3+ in the NIR range. in Chemical Engineering Journal. 2023;466:143130.
doi:10.1016/j.cej.2023.143130 .

Szymczak, Maja, Runowski, M., Brik, Mikhail G., Marciniak, Lukasz, "Multimodal, super-sensitive luminescent manometer based on giant pressure-induced spectral shift of Cr3+ in the NIR range" in Chemical Engineering Journal, 466 (2023):143130,
https://doi.org/10.1016/j.cej.2023.143130 . .

TY  - JOUR
AU  - Ristić, Zoran
AU  - Piotrowski, Wojciech
AU  - Medić, Mina M.
AU  - Periša, Jovana
AU  - Antić, Željka
AU  - Marciniak, Lukasz
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10225
AB  - This paper describes Mn5+-activated Sr3(PO4)2and Ba3(PO4)2phosphors as near-infrared lifetime-based luminescence thermometry probes. Materials were prepared by a solid-state method, and their rhombohedral structures were confirmed by X-ray diffraction analysis. Diffuse reflectance measurements showed broad and strong absorption between 650 and 950 nm covering the first biological transparency window and having an absorption maximum at ∼660 nm. By switching Sr with Ba, the following changes in the photoluminescent properties were observed: (i) a red shift of the emission maximum (1173 nm → 1191 nm) and (ii) a decrease in the excited-state lifetime. Thermometric properties of the phosphors were assessed by measuring and analyzing the temperature dependence of the Mn5+excited-state lifetime. Lifetime-based luminescence thermometry revealed a relative sensitivity of 0.5% K-1at 310 K (physiologically relevant range) and a maximal value of ∼1% K-1at temperatures between 400 and 500 K. © 2022 American Chemical Society.
T2  - ACS Applied Electronic Materials
T1  - Near-Infrared Luminescent Lifetime-Based Thermometry with Mn5+-Activated Sr3(PO4)2and Ba3(PO4)2Phosphors
VL  - 4
IS  - 3
SP  - 1057
EP  - 1062
DO  - 10.1021/acsaelm.1c01207
ER  - 

@article{
author = "Ristić, Zoran and Piotrowski, Wojciech and Medić, Mina M. and Periša, Jovana and Antić, Željka and Marciniak, Lukasz and Dramićanin, Miroslav",
year = "2022",
abstract = "This paper describes Mn5+-activated Sr3(PO4)2and Ba3(PO4)2phosphors as near-infrared lifetime-based luminescence thermometry probes. Materials were prepared by a solid-state method, and their rhombohedral structures were confirmed by X-ray diffraction analysis. Diffuse reflectance measurements showed broad and strong absorption between 650 and 950 nm covering the first biological transparency window and having an absorption maximum at ∼660 nm. By switching Sr with Ba, the following changes in the photoluminescent properties were observed: (i) a red shift of the emission maximum (1173 nm → 1191 nm) and (ii) a decrease in the excited-state lifetime. Thermometric properties of the phosphors were assessed by measuring and analyzing the temperature dependence of the Mn5+excited-state lifetime. Lifetime-based luminescence thermometry revealed a relative sensitivity of 0.5% K-1at 310 K (physiologically relevant range) and a maximal value of ∼1% K-1at temperatures between 400 and 500 K. © 2022 American Chemical Society.",
journal = "ACS Applied Electronic Materials",
title = "Near-Infrared Luminescent Lifetime-Based Thermometry with Mn5+-Activated Sr3(PO4)2and Ba3(PO4)2Phosphors",
volume = "4",
number = "3",
pages = "1057-1062",
doi = "10.1021/acsaelm.1c01207"
}

Ristić, Z., Piotrowski, W., Medić, M. M., Periša, J., Antić, Ž., Marciniak, L.,& Dramićanin, M.. (2022). Near-Infrared Luminescent Lifetime-Based Thermometry with Mn5+-Activated Sr3(PO4)2and Ba3(PO4)2Phosphors. in ACS Applied Electronic Materials, 4(3), 1057-1062.
https://doi.org/10.1021/acsaelm.1c01207

Ristić Z, Piotrowski W, Medić MM, Periša J, Antić Ž, Marciniak L, Dramićanin M. Near-Infrared Luminescent Lifetime-Based Thermometry with Mn5+-Activated Sr3(PO4)2and Ba3(PO4)2Phosphors. in ACS Applied Electronic Materials. 2022;4(3):1057-1062.
doi:10.1021/acsaelm.1c01207 .

Ristić, Zoran, Piotrowski, Wojciech, Medić, Mina M., Periša, Jovana, Antić, Željka, Marciniak, Lukasz, Dramićanin, Miroslav, "Near-Infrared Luminescent Lifetime-Based Thermometry with Mn5+-Activated Sr3(PO4)2and Ba3(PO4)2Phosphors" in ACS Applied Electronic Materials, 4, no. 3 (2022):1057-1062,
https://doi.org/10.1021/acsaelm.1c01207 . .

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Marciniak, Lukasz
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10228
AB  - In response to the sensitivity limitation of ratiometric luminescence thermometers, herein we propose a novel temperature readout, which exploits two pairs of thermalized energy levels in trivalent lanthanide ion-activated phosphors, to provide significantly enhanced sensitivity. This method is called the luminescence intensity ratio squared (LIR2) method. It is a combination of the dual-excitation single emission band ratiometric (SBR) and conventional (Boltzmann) luminescence intensity ratio (LIR) techniques. The relative sensitivity of LIR2 is the sum of the sensitivities of each method, and its thermal dependence is predicted theoretically. We explain the LIR2 method in detail and identify the perspective of lanthanide-activated probes. The performance of the proposed approach was evaluated using YVO4:Eu3+ and YNbO4:Eu3+ powders and compared with those of the SBR and LIR techniques. The LIR2 method displayed significantly better thermometric performance than SBR and LIR over a wide temperature range (300–850 K)
T2  - Journal of Applied Physics
T1  - Luminescence intensity ratio squared - A new luminescence thermometry method for enhanced sensitivity
VL  - 131
IS  - 11
SP  - 114501
DO  - 10.1063/5.0086807
ER  - 

@article{
author = "Ćirić, Aleksandar and Marciniak, Lukasz and Dramićanin, Miroslav",
year = "2022",
abstract = "In response to the sensitivity limitation of ratiometric luminescence thermometers, herein we propose a novel temperature readout, which exploits two pairs of thermalized energy levels in trivalent lanthanide ion-activated phosphors, to provide significantly enhanced sensitivity. This method is called the luminescence intensity ratio squared (LIR2) method. It is a combination of the dual-excitation single emission band ratiometric (SBR) and conventional (Boltzmann) luminescence intensity ratio (LIR) techniques. The relative sensitivity of LIR2 is the sum of the sensitivities of each method, and its thermal dependence is predicted theoretically. We explain the LIR2 method in detail and identify the perspective of lanthanide-activated probes. The performance of the proposed approach was evaluated using YVO4:Eu3+ and YNbO4:Eu3+ powders and compared with those of the SBR and LIR techniques. The LIR2 method displayed significantly better thermometric performance than SBR and LIR over a wide temperature range (300–850 K)",
journal = "Journal of Applied Physics",
title = "Luminescence intensity ratio squared - A new luminescence thermometry method for enhanced sensitivity",
volume = "131",
number = "11",
pages = "114501",
doi = "10.1063/5.0086807"
}

Ćirić, A., Marciniak, L.,& Dramićanin, M.. (2022). Luminescence intensity ratio squared - A new luminescence thermometry method for enhanced sensitivity. in Journal of Applied Physics, 131(11), 114501.
https://doi.org/10.1063/5.0086807

Ćirić A, Marciniak L, Dramićanin M. Luminescence intensity ratio squared - A new luminescence thermometry method for enhanced sensitivity. in Journal of Applied Physics. 2022;131(11):114501.
doi:10.1063/5.0086807 .

Ćirić, Aleksandar, Marciniak, Lukasz, Dramićanin, Miroslav, "Luminescence intensity ratio squared - A new luminescence thermometry method for enhanced sensitivity" in Journal of Applied Physics, 131, no. 11 (2022):114501,
https://doi.org/10.1063/5.0086807 . .

TY  - JOUR
AU  - Marciniak, Lukasz
AU  - Kniec, Karolina
AU  - Elżbieciak-Piecka, Karolina
AU  - Trejgis, Karolina
AU  - Stefanska, Joanna Z.
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10358
AB  - Transition metal (TM) ion activated phosphors are increasingly being used as probes for luminescence thermometry. Their luminescence is characterized by strong absorption and emission bands that span the visible and near-infrared spectral ranges and are highly susceptible to temperature variations. Due to the latter characteristic, sensitive and reliable remote temperature measurements can be performed by observing temperature-induced changes in TM ion emission intensities, emission bandwidths and bandshifts, and excited state lifetimes, as well as the temperature dependences of the intensity ratios between various emission bands in single or double activated phosphors. This review provides a systematic analysis of the performances of luminescent thermometers based on different TM ions and discusses the relations among the TM spectroscopic properties, characteristics of the host material structure, and thermometric performance. Particular attention is given to the engineering of energy transfer between TM and other dopant ions to obtain highly sensitive thermometers. Finally, several typical application examples from recent literature are highlighted. © 2022 The Author(s)
T2  - Coordination Chemistry Reviews
T2  - Coordination Chemistry Reviews
T1  - Luminescence thermometry with transition metal ions. A review
VL  - 469
DO  - 10.1016/j.ccr.2022.214671
ER  - 

@article{
author = "Marciniak, Lukasz and Kniec, Karolina and Elżbieciak-Piecka, Karolina and Trejgis, Karolina and Stefanska, Joanna Z. and Dramićanin, Miroslav",
year = "2022",
abstract = "Transition metal (TM) ion activated phosphors are increasingly being used as probes for luminescence thermometry. Their luminescence is characterized by strong absorption and emission bands that span the visible and near-infrared spectral ranges and are highly susceptible to temperature variations. Due to the latter characteristic, sensitive and reliable remote temperature measurements can be performed by observing temperature-induced changes in TM ion emission intensities, emission bandwidths and bandshifts, and excited state lifetimes, as well as the temperature dependences of the intensity ratios between various emission bands in single or double activated phosphors. This review provides a systematic analysis of the performances of luminescent thermometers based on different TM ions and discusses the relations among the TM spectroscopic properties, characteristics of the host material structure, and thermometric performance. Particular attention is given to the engineering of energy transfer between TM and other dopant ions to obtain highly sensitive thermometers. Finally, several typical application examples from recent literature are highlighted. © 2022 The Author(s)",
journal = "Coordination Chemistry Reviews, Coordination Chemistry Reviews",
title = "Luminescence thermometry with transition metal ions. A review",
volume = "469",
doi = "10.1016/j.ccr.2022.214671"
}

Marciniak, L., Kniec, K., Elżbieciak-Piecka, K., Trejgis, K., Stefanska, J. Z.,& Dramićanin, M.. (2022). Luminescence thermometry with transition metal ions. A review. in Coordination Chemistry Reviews, 469.
https://doi.org/10.1016/j.ccr.2022.214671

Marciniak L, Kniec K, Elżbieciak-Piecka K, Trejgis K, Stefanska JZ, Dramićanin M. Luminescence thermometry with transition metal ions. A review. in Coordination Chemistry Reviews. 2022;469.
doi:10.1016/j.ccr.2022.214671 .

Marciniak, Lukasz, Kniec, Karolina, Elżbieciak-Piecka, Karolina, Trejgis, Karolina, Stefanska, Joanna Z., Dramićanin, Miroslav, "Luminescence thermometry with transition metal ions. A review" in Coordination Chemistry Reviews, 469 (2022),
https://doi.org/10.1016/j.ccr.2022.214671 . .

TY  - JOUR
AU  - Gavrilović, Tamara V.
AU  - Periša, Jovana
AU  - Ristić, Zoran
AU  - Elzbieciak-Piecka, Karolina
AU  - Marciniak, Lukasz
AU  - Ma, Chong-Geng
AU  - Antić, Željka
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10429
AB  - We demonstrate the thermal history forensic measurements founded on the emission intensity ratio of Eu3+-doped yttrium vanadate. An increase in phosphor’s crystallite size with annealing temperature is observed, causing a significant and permanent increase in the emission intensity and symmetry ratio (ratio of Eu3+ 5D0 → 7F1 and 5D0 → 7F2 emissions). This ratio is used as a forensic indicator of the maximal temperature to which phosphor was exposed. Additionally, we demonstrated that irreversible change in the symmetry ratio after exposure to high temperatures is insensitive to the exposure time. Finally, it is shown that thermal history readings can be performed at any temperature. The applicative potential of the proposed approach was confirmed in the proof-of-concept experiment on a steel plate covered with phosphor and exposed to high temperatures.
T2  - Measurement
T1  - Thermal history forensics using the emission intensity ratio of YVO4:Eu3+ phosphor
VL  - 202
SP  - 111942
DO  - 10.1016/j.measurement.2022.111942
ER  - 

@article{
author = "Gavrilović, Tamara V. and Periša, Jovana and Ristić, Zoran and Elzbieciak-Piecka, Karolina and Marciniak, Lukasz and Ma, Chong-Geng and Antić, Željka and Dramićanin, Miroslav",
year = "2022",
abstract = "We demonstrate the thermal history forensic measurements founded on the emission intensity ratio of Eu3+-doped yttrium vanadate. An increase in phosphor’s crystallite size with annealing temperature is observed, causing a significant and permanent increase in the emission intensity and symmetry ratio (ratio of Eu3+ 5D0 → 7F1 and 5D0 → 7F2 emissions). This ratio is used as a forensic indicator of the maximal temperature to which phosphor was exposed. Additionally, we demonstrated that irreversible change in the symmetry ratio after exposure to high temperatures is insensitive to the exposure time. Finally, it is shown that thermal history readings can be performed at any temperature. The applicative potential of the proposed approach was confirmed in the proof-of-concept experiment on a steel plate covered with phosphor and exposed to high temperatures.",
journal = "Measurement",
title = "Thermal history forensics using the emission intensity ratio of YVO4:Eu3+ phosphor",
volume = "202",
pages = "111942",
doi = "10.1016/j.measurement.2022.111942"
}

Gavrilović, T. V., Periša, J., Ristić, Z., Elzbieciak-Piecka, K., Marciniak, L., Ma, C., Antić, Ž.,& Dramićanin, M.. (2022). Thermal history forensics using the emission intensity ratio of YVO4:Eu3+ phosphor. in Measurement, 202, 111942.
https://doi.org/10.1016/j.measurement.2022.111942

Gavrilović TV, Periša J, Ristić Z, Elzbieciak-Piecka K, Marciniak L, Ma C, Antić Ž, Dramićanin M. Thermal history forensics using the emission intensity ratio of YVO4:Eu3+ phosphor. in Measurement. 2022;202:111942.
doi:10.1016/j.measurement.2022.111942 .

Gavrilović, Tamara V., Periša, Jovana, Ristić, Zoran, Elzbieciak-Piecka, Karolina, Marciniak, Lukasz, Ma, Chong-Geng, Antić, Željka, Dramićanin, Miroslav, "Thermal history forensics using the emission intensity ratio of YVO4:Eu3+ phosphor" in Measurement, 202 (2022):111942,
https://doi.org/10.1016/j.measurement.2022.111942 . .

TY  - JOUR
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
AU  - Kuzman, Sanja
AU  - Piotrowski, Wojciech
AU  - Ristić, Zoran
AU  - Periša, Jovana
AU  - Evans, Ivana
AU  - Mitrić, Jelena
AU  - Đorđević, Vesna
AU  - Tadić, Julijana D.
AU  - Brik, Mikhail G.
AU  - Ma, Chong-Geng
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10439
AB  - The near-infrared luminescence of Ca6Ba(PO4)4O:Mn5+ is demonstrated and explained. When excited into the broad and strong absorption band that spans the 500–1000 nm spectral range, this phosphor provides an ultranarrow (FWHM = 5 nm) emission centered at 1140 nm that originates from a spin-forbidden 1E → 3A2 transition with a 37.5% internal quantum efficiency and an excited-state lifetime of about 350 μs. We derived the crystal field and Racah parameters and calculated the appropriate Tanabe–Sugano diagram for this phosphor. We found that 1E emission quenches due to the thermally-assisted cross-over with the 3T2 state and that the relatively high Debye temperature of 783 K of Ca6Ba(PO4)4O facilitates efficient emission. Since Ca6Ba(PO4)4O also provides efficient yellow emission of the Eu2+ dopant, we calculated and explained its electronic band structure, the partial and total density of states, effective Mulliken charges of all ions, elastic constants, Debye temperature, and vibrational spectra. Finally, we demonstrated the application of phosphor in a luminescence intensity ratio thermometry and obtained a relative sensitivity of 1.92%K−1 and a temperature resolution of 0.2 K in the range of physiological temperatures.
T2  - Light: Science & Applications
T1  - Mn5+-activated Ca6Ba(PO4)4O near-infrared phosphor and its application in luminescence thermometry
VL  - 11
IS  - 1
SP  - 279
DO  - 10.1038/s41377-022-00958-7
ER  - 

@article{
author = "Dramićanin, Miroslav and Marciniak, Lukasz and Kuzman, Sanja and Piotrowski, Wojciech and Ristić, Zoran and Periša, Jovana and Evans, Ivana and Mitrić, Jelena and Đorđević, Vesna and Tadić, Julijana D. and Brik, Mikhail G. and Ma, Chong-Geng",
year = "2022",
abstract = "The near-infrared luminescence of Ca6Ba(PO4)4O:Mn5+ is demonstrated and explained. When excited into the broad and strong absorption band that spans the 500–1000 nm spectral range, this phosphor provides an ultranarrow (FWHM = 5 nm) emission centered at 1140 nm that originates from a spin-forbidden 1E → 3A2 transition with a 37.5% internal quantum efficiency and an excited-state lifetime of about 350 μs. We derived the crystal field and Racah parameters and calculated the appropriate Tanabe–Sugano diagram for this phosphor. We found that 1E emission quenches due to the thermally-assisted cross-over with the 3T2 state and that the relatively high Debye temperature of 783 K of Ca6Ba(PO4)4O facilitates efficient emission. Since Ca6Ba(PO4)4O also provides efficient yellow emission of the Eu2+ dopant, we calculated and explained its electronic band structure, the partial and total density of states, effective Mulliken charges of all ions, elastic constants, Debye temperature, and vibrational spectra. Finally, we demonstrated the application of phosphor in a luminescence intensity ratio thermometry and obtained a relative sensitivity of 1.92%K−1 and a temperature resolution of 0.2 K in the range of physiological temperatures.",
journal = "Light: Science & Applications",
title = "Mn5+-activated Ca6Ba(PO4)4O near-infrared phosphor and its application in luminescence thermometry",
volume = "11",
number = "1",
pages = "279",
doi = "10.1038/s41377-022-00958-7"
}

Dramićanin, M., Marciniak, L., Kuzman, S., Piotrowski, W., Ristić, Z., Periša, J., Evans, I., Mitrić, J., Đorđević, V., Tadić, J. D., Brik, M. G.,& Ma, C.. (2022). Mn5+-activated Ca6Ba(PO4)4O near-infrared phosphor and its application in luminescence thermometry. in Light: Science & Applications, 11(1), 279.
https://doi.org/10.1038/s41377-022-00958-7

Dramićanin M, Marciniak L, Kuzman S, Piotrowski W, Ristić Z, Periša J, Evans I, Mitrić J, Đorđević V, Tadić JD, Brik MG, Ma C. Mn5+-activated Ca6Ba(PO4)4O near-infrared phosphor and its application in luminescence thermometry. in Light: Science & Applications. 2022;11(1):279.
doi:10.1038/s41377-022-00958-7 .

Dramićanin, Miroslav, Marciniak, Lukasz, Kuzman, Sanja, Piotrowski, Wojciech, Ristić, Zoran, Periša, Jovana, Evans, Ivana, Mitrić, Jelena, Đorđević, Vesna, Tadić, Julijana D., Brik, Mikhail G., Ma, Chong-Geng, "Mn5+-activated Ca6Ba(PO4)4O near-infrared phosphor and its application in luminescence thermometry" in Light: Science & Applications, 11, no. 1 (2022):279,
https://doi.org/10.1038/s41377-022-00958-7 . .

TY  - JOUR
AU  - Marciniak, Lukasz
AU  - Piotrowski, Wojciech M.
AU  - Drozd, Marek
AU  - Kinzhybalo, Vasyl
AU  - Bednarkiewicz, Artur
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10201
AB  - Almost all existing luminescent thermometers rely on the temperature-dependent processes such as multi-phonon relaxation and phonon-assisted energy transfers, thermal population, or coupling between energy levels of ground and excited states of luminescent species (lanthanides, transition metals, quantum dots, fluorescent molecules, etc.). Although such phenomena are in principle suitable for straightforward calibration, aiming to offer high temperature sensitivity, high temperature resolution and the widest possible temperature sensitivity range, their performance is often dependent on the excitation intensity or sample dispersive properties and often suffers from insufficient brightness, which further becomes dimmer at increased temperatures. Exploiting temperature-dependent continuous phase transitions that modify the same near-infrared (NIR) emission band under the same NIR excitation wavelength may provide an alternative reading method for temperature sensing. Here, such a new principle of luminescent nano-thermometry (LNT) using a Nd3+ doped nanocrystalline LiYO2 matrix is studied, significant sensitivities of up to 6%/K are achieved, and other issues found in conventional LNT are circumvented. Due to the hysteresis found in this class of LNT, they may find applications in studies of temperature gradients and can be integrated with modern nanophotonic devices. © 2022 Wiley-VCH GmbH
T2  - Advanced Optical Materials
T1  - Phase Transition‐Driven Highly Sensitive, NIR–NIR Band‐Shape Luminescent Thermometer Based on LiYO2:Nd3+
SP  - 2102856
DO  - 10.1002/adom.202102856
ER  - 

@article{
author = "Marciniak, Lukasz and Piotrowski, Wojciech M. and Drozd, Marek and Kinzhybalo, Vasyl and Bednarkiewicz, Artur and Dramićanin, Miroslav",
year = "2022",
abstract = "Almost all existing luminescent thermometers rely on the temperature-dependent processes such as multi-phonon relaxation and phonon-assisted energy transfers, thermal population, or coupling between energy levels of ground and excited states of luminescent species (lanthanides, transition metals, quantum dots, fluorescent molecules, etc.). Although such phenomena are in principle suitable for straightforward calibration, aiming to offer high temperature sensitivity, high temperature resolution and the widest possible temperature sensitivity range, their performance is often dependent on the excitation intensity or sample dispersive properties and often suffers from insufficient brightness, which further becomes dimmer at increased temperatures. Exploiting temperature-dependent continuous phase transitions that modify the same near-infrared (NIR) emission band under the same NIR excitation wavelength may provide an alternative reading method for temperature sensing. Here, such a new principle of luminescent nano-thermometry (LNT) using a Nd3+ doped nanocrystalline LiYO2 matrix is studied, significant sensitivities of up to 6%/K are achieved, and other issues found in conventional LNT are circumvented. Due to the hysteresis found in this class of LNT, they may find applications in studies of temperature gradients and can be integrated with modern nanophotonic devices. © 2022 Wiley-VCH GmbH",
journal = "Advanced Optical Materials",
title = "Phase Transition‐Driven Highly Sensitive, NIR–NIR Band‐Shape Luminescent Thermometer Based on LiYO2:Nd3+",
pages = "2102856",
doi = "10.1002/adom.202102856"
}

Marciniak, L., Piotrowski, W. M., Drozd, M., Kinzhybalo, V., Bednarkiewicz, A.,& Dramićanin, M.. (2022). Phase Transition‐Driven Highly Sensitive, NIR–NIR Band‐Shape Luminescent Thermometer Based on LiYO2:Nd3+. in Advanced Optical Materials, 2102856.
https://doi.org/10.1002/adom.202102856

Marciniak L, Piotrowski WM, Drozd M, Kinzhybalo V, Bednarkiewicz A, Dramićanin M. Phase Transition‐Driven Highly Sensitive, NIR–NIR Band‐Shape Luminescent Thermometer Based on LiYO2:Nd3+. in Advanced Optical Materials. 2022;:2102856.
doi:10.1002/adom.202102856 .

Marciniak, Lukasz, Piotrowski, Wojciech M., Drozd, Marek, Kinzhybalo, Vasyl, Bednarkiewicz, Artur, Dramićanin, Miroslav, "Phase Transition‐Driven Highly Sensitive, NIR–NIR Band‐Shape Luminescent Thermometer Based on LiYO2:Nd3+" in Advanced Optical Materials (2022):2102856,
https://doi.org/10.1002/adom.202102856 . .

TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Ristić, Zoran
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10191
AB  - Luminescence thermometry exploiting luminescence kinetics as a thermometric parameter is regarded as one of the most reliable temperature readout techniques. Transition metal ions are of particular interest in this application which is due to the possibility of modulating their spectroscopic properties by changing the strength of the crystal field of the matrix. In this work, we present a strategy to modulate the thermometric parameters including the relative sensitivity and useful temperature range of luminescent thermometers based on the lifetime of Ti3+ ions by introducing lanthanide (Ln3+) doping in SrTiO3 and CaTiO3. The mutual effect of the distortion of the local symmetry of the Ti3+ ions associated with the introduction of Ln3+ ions and/or the Ti3+ → Ln3+ energy transfer enabled relative sensitivities of SR = 5.87% K−1 at 140 K for SrTiO3:Dy3+ and SR = 4.51% K−1 at 251 K for CaTiO3:Gd3+. © 2022 The Author(s)
T2  - Journal of Alloys and Compounds
T1  - Modification of the thermometric performance of the lifetime-based luminescent thermometer exploiting Ti3+ emission in SrTiO3 and CaTiO3 by doping with lanthanide ions
VL  - 906
SP  - 164398
DO  - 10.1016/j.jallcom.2022.164398
ER  - 

@article{
author = "Piotrowski, Wojciech M. and Ristić, Zoran and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2022",
abstract = "Luminescence thermometry exploiting luminescence kinetics as a thermometric parameter is regarded as one of the most reliable temperature readout techniques. Transition metal ions are of particular interest in this application which is due to the possibility of modulating their spectroscopic properties by changing the strength of the crystal field of the matrix. In this work, we present a strategy to modulate the thermometric parameters including the relative sensitivity and useful temperature range of luminescent thermometers based on the lifetime of Ti3+ ions by introducing lanthanide (Ln3+) doping in SrTiO3 and CaTiO3. The mutual effect of the distortion of the local symmetry of the Ti3+ ions associated with the introduction of Ln3+ ions and/or the Ti3+ → Ln3+ energy transfer enabled relative sensitivities of SR = 5.87% K−1 at 140 K for SrTiO3:Dy3+ and SR = 4.51% K−1 at 251 K for CaTiO3:Gd3+. © 2022 The Author(s)",
journal = "Journal of Alloys and Compounds",
title = "Modification of the thermometric performance of the lifetime-based luminescent thermometer exploiting Ti3+ emission in SrTiO3 and CaTiO3 by doping with lanthanide ions",
volume = "906",
pages = "164398",
doi = "10.1016/j.jallcom.2022.164398"
}

Piotrowski, W. M., Ristić, Z., Dramićanin, M.,& Marciniak, L.. (2022). Modification of the thermometric performance of the lifetime-based luminescent thermometer exploiting Ti3+ emission in SrTiO3 and CaTiO3 by doping with lanthanide ions. in Journal of Alloys and Compounds, 906, 164398.
https://doi.org/10.1016/j.jallcom.2022.164398

Piotrowski WM, Ristić Z, Dramićanin M, Marciniak L. Modification of the thermometric performance of the lifetime-based luminescent thermometer exploiting Ti3+ emission in SrTiO3 and CaTiO3 by doping with lanthanide ions. in Journal of Alloys and Compounds. 2022;906:164398.
doi:10.1016/j.jallcom.2022.164398 .

Piotrowski, Wojciech M., Ristić, Zoran, Dramićanin, Miroslav, Marciniak, Lukasz, "Modification of the thermometric performance of the lifetime-based luminescent thermometer exploiting Ti3+ emission in SrTiO3 and CaTiO3 by doping with lanthanide ions" in Journal of Alloys and Compounds, 906 (2022):164398,
https://doi.org/10.1016/j.jallcom.2022.164398 . .

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Marciniak, Lukasz
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10133
AB  - Judd–Ofelt theory is a cornerstone of lanthanides’ spectroscopy given that it describes 4fn emissions and absorptions of lanthanide ions using only three intensity parameters. A self-referenced technique for computing Judd–Ofelt intensity parameters from the excitation spectra of Eu3+-activated luminescent materials is presented in this study along with an explanation of the parametrisation procedure and free user-friendly web application. It uses the integrated intensities of the 7F0 → 5D2, 7F0 → 5D4, and 7F0 → 5L6 transitions in the excitation spectrum for estimation and the integrated intensity of the 7F0 → 5D1 magnetic dipole transition for calibration. This approach facilitates an effortless derivation of the Ω6 intensity parameter, which is challenging to compute precisely by Krupke’s parametrisation of the emission spectrum and, therefore, often omitted in published research papers. Compared to the parametrisation of absorption spectra, the described method is more accurate, can be applied to any material form, and requires a single excitation spectrum.
T2  - Scientific Reports
T1  - Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum
VL  - 12
IS  - 1
SP  - 563
DO  - 10.1038/s41598-021-04651-4
ER  - 

@article{
author = "Ćirić, Aleksandar and Marciniak, Lukasz and Dramićanin, Miroslav",
year = "2022",
abstract = "Judd–Ofelt theory is a cornerstone of lanthanides’ spectroscopy given that it describes 4fn emissions and absorptions of lanthanide ions using only three intensity parameters. A self-referenced technique for computing Judd–Ofelt intensity parameters from the excitation spectra of Eu3+-activated luminescent materials is presented in this study along with an explanation of the parametrisation procedure and free user-friendly web application. It uses the integrated intensities of the 7F0 → 5D2, 7F0 → 5D4, and 7F0 → 5L6 transitions in the excitation spectrum for estimation and the integrated intensity of the 7F0 → 5D1 magnetic dipole transition for calibration. This approach facilitates an effortless derivation of the Ω6 intensity parameter, which is challenging to compute precisely by Krupke’s parametrisation of the emission spectrum and, therefore, often omitted in published research papers. Compared to the parametrisation of absorption spectra, the described method is more accurate, can be applied to any material form, and requires a single excitation spectrum.",
journal = "Scientific Reports",
title = "Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum",
volume = "12",
number = "1",
pages = "563",
doi = "10.1038/s41598-021-04651-4"
}

Ćirić, A., Marciniak, L.,& Dramićanin, M.. (2022). Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum. in Scientific Reports, 12(1), 563.
https://doi.org/10.1038/s41598-021-04651-4

Ćirić A, Marciniak L, Dramićanin M. Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum. in Scientific Reports. 2022;12(1):563.
doi:10.1038/s41598-021-04651-4 .

Ćirić, Aleksandar, Marciniak, Lukasz, Dramićanin, Miroslav, "Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum" in Scientific Reports, 12, no. 1 (2022):563,
https://doi.org/10.1038/s41598-021-04651-4 . .

TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Kuchowicz, Maciej
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9890
AB  - Herein, we show that the substitution of Sr2+ by trivalent lanthanide ions (Lu3+, La3+, Tb3+) in SrTiO3 nanocrystals stabilizes and enhances Ti3+ near-infrared emission (around 800 nm). This emission occurs from the 6-fold coordinated Ti3+ luminescent centers that appear in the vacancy–Ti3+–O form after lanthanide doping into the Sr2+ site. The strong dependence of the Ti3+ emission on temperature provided means for the tailored chemical engineering of luminescent nanonthermometers able to read the temperature in three ways: from the changes in Ti3+ emission intensity, excited-state lifetime, and from the ratio of Tb3+ and Ti3+ emission intensities. We demonstrated the unprecedented temperature sensitivity of the lifetime-based luminescent thermometer (8.83% K−1) with SrTiO3:Tb3+, along with exceptional repeatability in measurements.
T2  - Chemical Engineering Journal
T1  - Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals
VL  - 428
SP  - 131165
DO  - 10.1016/j.cej.2021.131165
ER  - 

@article{
author = "Piotrowski, Wojciech M. and Kuchowicz, Maciej and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2022",
abstract = "Herein, we show that the substitution of Sr2+ by trivalent lanthanide ions (Lu3+, La3+, Tb3+) in SrTiO3 nanocrystals stabilizes and enhances Ti3+ near-infrared emission (around 800 nm). This emission occurs from the 6-fold coordinated Ti3+ luminescent centers that appear in the vacancy–Ti3+–O form after lanthanide doping into the Sr2+ site. The strong dependence of the Ti3+ emission on temperature provided means for the tailored chemical engineering of luminescent nanonthermometers able to read the temperature in three ways: from the changes in Ti3+ emission intensity, excited-state lifetime, and from the ratio of Tb3+ and Ti3+ emission intensities. We demonstrated the unprecedented temperature sensitivity of the lifetime-based luminescent thermometer (8.83% K−1) with SrTiO3:Tb3+, along with exceptional repeatability in measurements.",
journal = "Chemical Engineering Journal",
title = "Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals",
volume = "428",
pages = "131165",
doi = "10.1016/j.cej.2021.131165"
}

Piotrowski, W. M., Kuchowicz, M., Dramićanin, M.,& Marciniak, L.. (2022). Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals. in Chemical Engineering Journal, 428, 131165.
https://doi.org/10.1016/j.cej.2021.131165

Piotrowski WM, Kuchowicz M, Dramićanin M, Marciniak L. Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals. in Chemical Engineering Journal. 2022;428:131165.
doi:10.1016/j.cej.2021.131165 .

Piotrowski, Wojciech M., Kuchowicz, Maciej, Dramićanin, Miroslav, Marciniak, Lukasz, "Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals" in Chemical Engineering Journal, 428 (2022):131165,
https://doi.org/10.1016/j.cej.2021.131165 . .

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 . .

TY  - JOUR
AU  - Periša, Jovana
AU  - Ristić, Zoran
AU  - Piotrowski, Wojciech M.
AU  - Antić, Željka
AU  - Marciniak, Lukasz
AU  - Dramićanin, Miroslav
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9804
AB  - This paper presents four new temperature readout approaches to luminescence nanothermometry in spectral regions of biological transparency demonstrated on Yb3+/Er3+-doped yttrium aluminum garnet nanoparticles. Under the 10 638 cm-1 excitation, down-shifting near infrared emissions (>10 000 cm-1) are identified as those originating from Yb3+ ions' 2F5/2 → 2F7/2 (∼9709 cm-1) and Er3+ ions' 4I13/2 → 4I15/2 (∼6494 cm-1) electronic transitions and used for 4 conceptually different luminescence thermometry approaches. Observed variations in luminescence parameters with temperature offered an exceptional base for studying multiparametric temperature readouts. These include the temperature-dependence of: (i) intensity ratio between emissions from Stark components of Er3+ 4I13/2 level; (ii) intensity ratio between emissions of Yb3+ (2F5/2 → 2F7/2 transition) and Er3+ (4I13/2 → 4I15/2 transition); (iii) band shift and bandwidth and (iv) lifetime of the Yb3+ emission (2F5/2 → 2F7/2 transition) with maximal sensitivities of 1% K-1, 0.8% K-1, 0.09 cm-1 K-1, 0.46% K-1 and 0.86% K-1, respectively. The multimodal temperature readout provided by this material enables its application in different luminescence thermometry setups as well as improved the reliability of the temperature sensing by the cross-validation between measurements. © 2021 The Royal Society of Chemistry.
T2  - RSC Advances
T1  - All near-infrared multiparametric luminescence thermometry using Er3+, Yb3+-doped YAG nanoparticles
VL  - 11
IS  - 26
SP  - 15933
EP  - 15942
DO  - 10.1039/d1ra01647d
ER  - 

@article{
author = "Periša, Jovana and Ristić, Zoran and Piotrowski, Wojciech M. and Antić, Željka and Marciniak, Lukasz and Dramićanin, Miroslav",
year = "2021",
abstract = "This paper presents four new temperature readout approaches to luminescence nanothermometry in spectral regions of biological transparency demonstrated on Yb3+/Er3+-doped yttrium aluminum garnet nanoparticles. Under the 10 638 cm-1 excitation, down-shifting near infrared emissions (>10 000 cm-1) are identified as those originating from Yb3+ ions' 2F5/2 → 2F7/2 (∼9709 cm-1) and Er3+ ions' 4I13/2 → 4I15/2 (∼6494 cm-1) electronic transitions and used for 4 conceptually different luminescence thermometry approaches. Observed variations in luminescence parameters with temperature offered an exceptional base for studying multiparametric temperature readouts. These include the temperature-dependence of: (i) intensity ratio between emissions from Stark components of Er3+ 4I13/2 level; (ii) intensity ratio between emissions of Yb3+ (2F5/2 → 2F7/2 transition) and Er3+ (4I13/2 → 4I15/2 transition); (iii) band shift and bandwidth and (iv) lifetime of the Yb3+ emission (2F5/2 → 2F7/2 transition) with maximal sensitivities of 1% K-1, 0.8% K-1, 0.09 cm-1 K-1, 0.46% K-1 and 0.86% K-1, respectively. The multimodal temperature readout provided by this material enables its application in different luminescence thermometry setups as well as improved the reliability of the temperature sensing by the cross-validation between measurements. © 2021 The Royal Society of Chemistry.",
journal = "RSC Advances",
title = "All near-infrared multiparametric luminescence thermometry using Er3+, Yb3+-doped YAG nanoparticles",
volume = "11",
number = "26",
pages = "15933-15942",
doi = "10.1039/d1ra01647d"
}

Periša, J., Ristić, Z., Piotrowski, W. M., Antić, Ž., Marciniak, L.,& Dramićanin, M.. (2021). All near-infrared multiparametric luminescence thermometry using Er3+, Yb3+-doped YAG nanoparticles. in RSC Advances, 11(26), 15933-15942.
https://doi.org/10.1039/d1ra01647d

Periša J, Ristić Z, Piotrowski WM, Antić Ž, Marciniak L, Dramićanin M. All near-infrared multiparametric luminescence thermometry using Er3+, Yb3+-doped YAG nanoparticles. in RSC Advances. 2021;11(26):15933-15942.
doi:10.1039/d1ra01647d .

Periša, Jovana, Ristić, Zoran, Piotrowski, Wojciech M., Antić, Željka, Marciniak, Lukasz, Dramićanin, Miroslav, "All near-infrared multiparametric luminescence thermometry using Er3+, Yb3+-doped YAG nanoparticles" in RSC Advances, 11, no. 26 (2021):15933-15942,
https://doi.org/10.1039/d1ra01647d . .

TY  - JOUR
AU  - Trejgis, Karolina
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9796
AB  - The constant striving to improve the quality of thermal imaging with the use of luminescent thermometers imposes the search for new materials with better and better thermometric properties. The facility in the modulation of the spectroscopic properties of transition metal doped materials makes them particularly attractive for this type of application. Therefore, in response to this expectation, in this manuscript we report the novel SrTiO3:Mn4+ nanocrystals as a thermographic phosphor of extraordinary thermometric properties in the biologically relevant temperatures. The high relative sensitivity of the SrTiO3:Mn4+ nanocrystals to temperature changes in each of the three temperature readout modes presented in this manuscript, namely 8.67%/K at 313 K in the intensity mode, 3.5%/K at 348 K in the lifetime mode and 5.64%/K at 303 K in the ratiometric mode, make this material one of the most promising candidates for highly sensitive temperature imaging. © 2021 Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Highly sensitive multiparametric luminescent thermometer for biologically-relevant temperatures based on Mn4+, Ln3+ co-doped SrTiO3 nanocrystals
VL  - 875
DO  - 10.1016/j.jallcom.2021.159973
ER  - 

@article{
author = "Trejgis, Karolina and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2021",
abstract = "The constant striving to improve the quality of thermal imaging with the use of luminescent thermometers imposes the search for new materials with better and better thermometric properties. The facility in the modulation of the spectroscopic properties of transition metal doped materials makes them particularly attractive for this type of application. Therefore, in response to this expectation, in this manuscript we report the novel SrTiO3:Mn4+ nanocrystals as a thermographic phosphor of extraordinary thermometric properties in the biologically relevant temperatures. The high relative sensitivity of the SrTiO3:Mn4+ nanocrystals to temperature changes in each of the three temperature readout modes presented in this manuscript, namely 8.67%/K at 313 K in the intensity mode, 3.5%/K at 348 K in the lifetime mode and 5.64%/K at 303 K in the ratiometric mode, make this material one of the most promising candidates for highly sensitive temperature imaging. © 2021 Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Highly sensitive multiparametric luminescent thermometer for biologically-relevant temperatures based on Mn4+, Ln3+ co-doped SrTiO3 nanocrystals",
volume = "875",
doi = "10.1016/j.jallcom.2021.159973"
}

Trejgis, K., Dramićanin, M.,& Marciniak, L.. (2021). Highly sensitive multiparametric luminescent thermometer for biologically-relevant temperatures based on Mn4+, Ln3+ co-doped SrTiO3 nanocrystals. in Journal of Alloys and Compounds, 875.
https://doi.org/10.1016/j.jallcom.2021.159973

Trejgis K, Dramićanin M, Marciniak L. Highly sensitive multiparametric luminescent thermometer for biologically-relevant temperatures based on Mn4+, Ln3+ co-doped SrTiO3 nanocrystals. in Journal of Alloys and Compounds. 2021;875.
doi:10.1016/j.jallcom.2021.159973 .

Trejgis, Karolina, Dramićanin, Miroslav, Marciniak, Lukasz, "Highly sensitive multiparametric luminescent thermometer for biologically-relevant temperatures based on Mn4+, Ln3+ co-doped SrTiO3 nanocrystals" in Journal of Alloys and Compounds, 875 (2021),
https://doi.org/10.1016/j.jallcom.2021.159973 . .

TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Trejgis, Karolina
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9917
AB  - The co-doping of SrTiO3:Mn4+ luminescent nanocrystals with trivalent lanthanide ions (Ln3+ = Lu3+, Tm3+, Er3+, Ho3+, Dy3+, Eu3+, and La3+) is demonstrated as a new strategy for significant sensitivity improvement of lifetime-based luminescent thermometers. SrTiO3:Mn4+:Ln3+ nanocrystals of about 25 nm diameter were prepared by the modified Pechini method and characterized using X-ray powder diffraction and electron microscopy techniques. The temperature dependence of Mn4+ emission in SrTiO3 was considerably altered by the co-doping of Ln3+ due to the cooperating effects of Mn4+ → Ti3+ and Mn4+ → Ln3+ energy transfers. A substantial enhancement of the relative sensitivity of lifetime-based thermometry as high as 145% with respect to the unco-doped nanocrystals reveals the success of the approach. The obtained values of maximal relative sensitivity for different Ln3+ co-dopants are 5.10% K−1 at 290 K for Er3+, 5.00% K−1 at 301 K for Eu3+, 4.84% K−1 at 303 K for Dy3+, 4.71% K−1 at 289 K for Ho3+, and 3.87% K−1 at 290.7 K for Lu3+.
T2  - Journal of Materials Chemistry C
T1  - Strong sensitivity enhancement in lifetime-based luminescence thermometry by co-doping of SrTiO3:Mn4+ nanocrystals with trivalent lanthanide ions
VL  - 9
IS  - 32
SP  - 10309
EP  - 10316
DO  - 10.1039/D1TC02814F
ER  - 

@article{
author = "Piotrowski, Wojciech M. and Trejgis, Karolina and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2021",
abstract = "The co-doping of SrTiO3:Mn4+ luminescent nanocrystals with trivalent lanthanide ions (Ln3+ = Lu3+, Tm3+, Er3+, Ho3+, Dy3+, Eu3+, and La3+) is demonstrated as a new strategy for significant sensitivity improvement of lifetime-based luminescent thermometers. SrTiO3:Mn4+:Ln3+ nanocrystals of about 25 nm diameter were prepared by the modified Pechini method and characterized using X-ray powder diffraction and electron microscopy techniques. The temperature dependence of Mn4+ emission in SrTiO3 was considerably altered by the co-doping of Ln3+ due to the cooperating effects of Mn4+ → Ti3+ and Mn4+ → Ln3+ energy transfers. A substantial enhancement of the relative sensitivity of lifetime-based thermometry as high as 145% with respect to the unco-doped nanocrystals reveals the success of the approach. The obtained values of maximal relative sensitivity for different Ln3+ co-dopants are 5.10% K−1 at 290 K for Er3+, 5.00% K−1 at 301 K for Eu3+, 4.84% K−1 at 303 K for Dy3+, 4.71% K−1 at 289 K for Ho3+, and 3.87% K−1 at 290.7 K for Lu3+.",
journal = "Journal of Materials Chemistry C",
title = "Strong sensitivity enhancement in lifetime-based luminescence thermometry by co-doping of SrTiO3:Mn4+ nanocrystals with trivalent lanthanide ions",
volume = "9",
number = "32",
pages = "10309-10316",
doi = "10.1039/D1TC02814F"
}

Piotrowski, W. M., Trejgis, K., Dramićanin, M.,& Marciniak, L.. (2021). Strong sensitivity enhancement in lifetime-based luminescence thermometry by co-doping of SrTiO3:Mn4+ nanocrystals with trivalent lanthanide ions. in Journal of Materials Chemistry C, 9(32), 10309-10316.
https://doi.org/10.1039/D1TC02814F

Piotrowski WM, Trejgis K, Dramićanin M, Marciniak L. Strong sensitivity enhancement in lifetime-based luminescence thermometry by co-doping of SrTiO3:Mn4+ nanocrystals with trivalent lanthanide ions. in Journal of Materials Chemistry C. 2021;9(32):10309-10316.
doi:10.1039/D1TC02814F .

Piotrowski, Wojciech M., Trejgis, Karolina, Dramićanin, Miroslav, Marciniak, Lukasz, "Strong sensitivity enhancement in lifetime-based luminescence thermometry by co-doping of SrTiO3:Mn4+ nanocrystals with trivalent lanthanide ions" in Journal of Materials Chemistry C, 9, no. 32 (2021):10309-10316,
https://doi.org/10.1039/D1TC02814F . .

TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Dalipi, L.
AU  - Szukiewicz, Rafal
AU  - Fond, Benoit
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9974
AB  - Despite the numerous advantages of lanthanide based luminescent thermometers, a major limitation is the limited brightness associated with the low absorption cross section of the 4f–4f transitions. In this paper, co-doping with Cr3+/4+ is proposed as a strategy to enhance the near-infrared luminescence emission of Nd3+/Er3+-based luminescent thermometers, as well as to modulate the temperature sensitivity of the ratio of Nd3+ to Er3+ in YAG microcrystals. It was found that an increase in the Cr3+ concentration leads to the enhancement of the YAG:Nd3+,Er3+ emission intensity via the Cr3+ → Ln3+ sensitization process. The quantitative analysis of the absolute brightness indicates the 30-fold enhancement of their near infrared emission upon broad white light excitation for 20% Cr3+ with respect to the non co-doped with the Cr3+ counterpart. In addition, the phonon-assisted nature of the simultaneously occurring Cr3+ → Ln3+ and Nd3+ → Cr4+ → Er3+ energy transfers leads to a 7-fold increase of the relative temperature sensitivity of the ratio of Nd3+ to Er3+ emission. In conclusion, co-doping with transition metals can enhance simultaneously the luminescence brightness and the temperature sensitivity of NIR luminescent thermometers, holding promise for sensitive and robust remote temperature sensing at physiological temperatures.
T2  - Journal of Materials Chemistry C
T1  - The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers
VL  - 9
IS  - 37
SP  - 12671
EP  - 12680
DO  - 10.1039/D1TC03046A
ER  - 

@article{
author = "Piotrowski, Wojciech M. and Dalipi, L. and Szukiewicz, Rafal and Fond, Benoit and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2021",
abstract = "Despite the numerous advantages of lanthanide based luminescent thermometers, a major limitation is the limited brightness associated with the low absorption cross section of the 4f–4f transitions. In this paper, co-doping with Cr3+/4+ is proposed as a strategy to enhance the near-infrared luminescence emission of Nd3+/Er3+-based luminescent thermometers, as well as to modulate the temperature sensitivity of the ratio of Nd3+ to Er3+ in YAG microcrystals. It was found that an increase in the Cr3+ concentration leads to the enhancement of the YAG:Nd3+,Er3+ emission intensity via the Cr3+ → Ln3+ sensitization process. The quantitative analysis of the absolute brightness indicates the 30-fold enhancement of their near infrared emission upon broad white light excitation for 20% Cr3+ with respect to the non co-doped with the Cr3+ counterpart. In addition, the phonon-assisted nature of the simultaneously occurring Cr3+ → Ln3+ and Nd3+ → Cr4+ → Er3+ energy transfers leads to a 7-fold increase of the relative temperature sensitivity of the ratio of Nd3+ to Er3+ emission. In conclusion, co-doping with transition metals can enhance simultaneously the luminescence brightness and the temperature sensitivity of NIR luminescent thermometers, holding promise for sensitive and robust remote temperature sensing at physiological temperatures.",
journal = "Journal of Materials Chemistry C",
title = "The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers",
volume = "9",
number = "37",
pages = "12671-12680",
doi = "10.1039/D1TC03046A"
}

Piotrowski, W. M., Dalipi, L., Szukiewicz, R., Fond, B., Dramićanin, M.,& Marciniak, L.. (2021). The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers. in Journal of Materials Chemistry C, 9(37), 12671-12680.
https://doi.org/10.1039/D1TC03046A

Piotrowski WM, Dalipi L, Szukiewicz R, Fond B, Dramićanin M, Marciniak L. The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers. in Journal of Materials Chemistry C. 2021;9(37):12671-12680.
doi:10.1039/D1TC03046A .

Piotrowski, Wojciech M., Dalipi, L., Szukiewicz, Rafal, Fond, Benoit, Dramićanin, Miroslav, Marciniak, Lukasz, "The role of Cr3+ and Cr4+ in emission brightness enhancement and sensitivity improvement of NIR-emitting Nd3+/Er3+ ratiometric luminescent thermometers" in Journal of Materials Chemistry C, 9, no. 37 (2021):12671-12680,
https://doi.org/10.1039/D1TC03046A . .