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  - Suta, Markus
AU  - Antić, Željka
AU  - Đorđević, Vesna R.
AU  - Kuzman, Sanja
AU  - Dramićanin, Miroslav
AU  - Meijerink, Andries
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8909
AB  - Ratiometric luminescence thermometry employing luminescence within the biological transparency windows provides high potential for biothermal imaging. Nd3+ is a promising candidate for that purpose due to its intense radiative transitions within biological windows (BWs) I and II and the simultaneous efficient excitability within BW I. This makes Nd3+ almost unique among all lanthanides. Typically, emission from the two 4F3/2 crystal field levels is used for thermometry but the small ~100 cm−1 energy separation limits the sensitivity. A higher sensitivity for physiological temperatures is possible using the luminescence intensity ratio (LIR) of the emissive transitions from the 4F5/2 and 4F3/2 excited spin-orbit levels. Herein, we demonstrate and discuss various pitfalls that can occur in Boltzmann thermometry if this particular LIR is used for physiological temperature sensing. Both microcrystalline, dilute (0.1%) Nd3+-doped LaPO4 and LaPO4: x% Nd3+ (x = 2, 5, 10, 25, 100) nanocrystals serve as an illustrative example. Besides structural and optical characterization of those luminescent thermometers, the impact and consequences of the Nd3+ concentration on their luminescence and performance as Boltzmann-based thermometers are analyzed. For low Nd3+ concentrations, Boltzmann equilibrium starts just around 300 K. At higher Nd3+ concentrations, cross-relaxation processes enhance the decay rates of the 4F3/2 and 4F5/2 levels making the decay faster than the equilibration rates between the levels. It is shown that the onset of the useful temperature sensing range shifts to higher temperatures, even above ~ 450 K for Nd concentrations over 5%. A microscopic explanation for pitfalls in Boltzmann thermometry with Nd3+ is finally given and guidelines for the usability of this lanthanide ion in the field of physiological temperature sensing are elaborated. Insight in competition between thermal coupling through non-radiative transitions and population decay through cross-relaxation of the 4F5/2 and 4F3/2 spin-orbit levels of Nd3+ makes it possible to tailor the thermometric performance of Nd3+ to enable physiological temperature sensing.
T2  - Nanomaterials
T1  - Making Nd3+ a Sensitive Luminescent Thermometer for Physiological Temperatures—An Account of Pitfalls in Boltzmann Thermometry
VL  - 10
IS  - 3
SP  - 543
DO  - 10.3390/nano10030543
ER  - 

@article{
author = "Suta, Markus and Antić, Željka and Đorđević, Vesna R. and Kuzman, Sanja and Dramićanin, Miroslav and Meijerink, Andries",
year = "2020",
abstract = "Ratiometric luminescence thermometry employing luminescence within the biological transparency windows provides high potential for biothermal imaging. Nd3+ is a promising candidate for that purpose due to its intense radiative transitions within biological windows (BWs) I and II and the simultaneous efficient excitability within BW I. This makes Nd3+ almost unique among all lanthanides. Typically, emission from the two 4F3/2 crystal field levels is used for thermometry but the small ~100 cm−1 energy separation limits the sensitivity. A higher sensitivity for physiological temperatures is possible using the luminescence intensity ratio (LIR) of the emissive transitions from the 4F5/2 and 4F3/2 excited spin-orbit levels. Herein, we demonstrate and discuss various pitfalls that can occur in Boltzmann thermometry if this particular LIR is used for physiological temperature sensing. Both microcrystalline, dilute (0.1%) Nd3+-doped LaPO4 and LaPO4: x% Nd3+ (x = 2, 5, 10, 25, 100) nanocrystals serve as an illustrative example. Besides structural and optical characterization of those luminescent thermometers, the impact and consequences of the Nd3+ concentration on their luminescence and performance as Boltzmann-based thermometers are analyzed. For low Nd3+ concentrations, Boltzmann equilibrium starts just around 300 K. At higher Nd3+ concentrations, cross-relaxation processes enhance the decay rates of the 4F3/2 and 4F5/2 levels making the decay faster than the equilibration rates between the levels. It is shown that the onset of the useful temperature sensing range shifts to higher temperatures, even above ~ 450 K for Nd concentrations over 5%. A microscopic explanation for pitfalls in Boltzmann thermometry with Nd3+ is finally given and guidelines for the usability of this lanthanide ion in the field of physiological temperature sensing are elaborated. Insight in competition between thermal coupling through non-radiative transitions and population decay through cross-relaxation of the 4F5/2 and 4F3/2 spin-orbit levels of Nd3+ makes it possible to tailor the thermometric performance of Nd3+ to enable physiological temperature sensing.",
journal = "Nanomaterials",
title = "Making Nd3+ a Sensitive Luminescent Thermometer for Physiological Temperatures—An Account of Pitfalls in Boltzmann Thermometry",
volume = "10",
number = "3",
pages = "543",
doi = "10.3390/nano10030543"
}

Suta, M., Antić, Ž., Đorđević, V. R., Kuzman, S., Dramićanin, M.,& Meijerink, A.. (2020). Making Nd3+ a Sensitive Luminescent Thermometer for Physiological Temperatures—An Account of Pitfalls in Boltzmann Thermometry. in Nanomaterials, 10(3), 543.
https://doi.org/10.3390/nano10030543

Suta M, Antić Ž, Đorđević VR, Kuzman S, Dramićanin M, Meijerink A. Making Nd3+ a Sensitive Luminescent Thermometer for Physiological Temperatures—An Account of Pitfalls in Boltzmann Thermometry. in Nanomaterials. 2020;10(3):543.
doi:10.3390/nano10030543 .

Suta, Markus, Antić, Željka, Đorđević, Vesna R., Kuzman, Sanja, Dramićanin, Miroslav, Meijerink, Andries, "Making Nd3+ a Sensitive Luminescent Thermometer for Physiological Temperatures—An Account of Pitfalls in Boltzmann Thermometry" in Nanomaterials, 10, no. 3 (2020):543,
https://doi.org/10.3390/nano10030543 . .

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Aleksić, Jelena
AU  - Barudžija, Tanja
AU  - Antić, Željka
AU  - Đorđević, Vesna R.
AU  - Medić, Mina M.
AU  - Periša, Jovana
AU  - Zeković, Ivana Lj.
AU  - Mitrić, Miodrag
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8938
AB  - The emission of Er3+ provides three combinations of emission bands suitable for ratiometric luminescence thermometry. Two combinations utilize ratios of visible emissions (2H11/2→4I15/2 at 523 nm/ 4S3/2→4I15/2 at 542 nm and 4F7/2→4I15/2 at 485 nm/ 4S3/2→4I15/2 at 545 nm), while emissions from the third combination are located in near-infrared, e.g., in the first biological window (2H11/2→4I13/2 at 793 nm/ 4S3/2→4I13/2 at 840 nm). Herein, we aimed to compare thermometric performances of these three different ratiometric readouts on account of their relative sensitivities, resolutions, and repeatability of measurements. For this aim, we prepared Yb3+,Er3+:YF3 nanopowders by oxide fluorination. The structure of the materials was confirmed by X-ray diffraction analysis and particle morphology was evaluated from FE-SEM measurements. Upconversion emission spectra were measured over the 293–473 K range upon excitation by 980 nm radiation. The obtained relative sensitivities on temperature for 523/542, 485/542, and 793/840 emission intensity ratios were 1.06 ± 0.02, 2.03 ± 0.23, and 0.98 ± 0.10%K−1 with temperature resolutions of 0.3, 0.7, and 1.8 K, respectively. The study showed that the higher relative temperature sensitivity does not necessarily lead to the more precise temperature measurement and better resolution, since it may be compromised by a larger uncertainty in measurement of low-intensity emission bands.
T2  - Nanomaterials
T1  - Comparison of Three Ratiometric Temperature Readings from the Er3+ Upconversion Emission
VL  - 10
IS  - 4
SP  - 627
DO  - 10.3390/nano10040627
ER  - 

@article{
author = "Ćirić, Aleksandar and Aleksić, Jelena and Barudžija, Tanja and Antić, Željka and Đorđević, Vesna R. and Medić, Mina M. and Periša, Jovana and Zeković, Ivana Lj. and Mitrić, Miodrag and Dramićanin, Miroslav",
year = "2020",
abstract = "The emission of Er3+ provides three combinations of emission bands suitable for ratiometric luminescence thermometry. Two combinations utilize ratios of visible emissions (2H11/2→4I15/2 at 523 nm/ 4S3/2→4I15/2 at 542 nm and 4F7/2→4I15/2 at 485 nm/ 4S3/2→4I15/2 at 545 nm), while emissions from the third combination are located in near-infrared, e.g., in the first biological window (2H11/2→4I13/2 at 793 nm/ 4S3/2→4I13/2 at 840 nm). Herein, we aimed to compare thermometric performances of these three different ratiometric readouts on account of their relative sensitivities, resolutions, and repeatability of measurements. For this aim, we prepared Yb3+,Er3+:YF3 nanopowders by oxide fluorination. The structure of the materials was confirmed by X-ray diffraction analysis and particle morphology was evaluated from FE-SEM measurements. Upconversion emission spectra were measured over the 293–473 K range upon excitation by 980 nm radiation. The obtained relative sensitivities on temperature for 523/542, 485/542, and 793/840 emission intensity ratios were 1.06 ± 0.02, 2.03 ± 0.23, and 0.98 ± 0.10%K−1 with temperature resolutions of 0.3, 0.7, and 1.8 K, respectively. The study showed that the higher relative temperature sensitivity does not necessarily lead to the more precise temperature measurement and better resolution, since it may be compromised by a larger uncertainty in measurement of low-intensity emission bands.",
journal = "Nanomaterials",
title = "Comparison of Three Ratiometric Temperature Readings from the Er3+ Upconversion Emission",
volume = "10",
number = "4",
pages = "627",
doi = "10.3390/nano10040627"
}

Ćirić, A., Aleksić, J., Barudžija, T., Antić, Ž., Đorđević, V. R., Medić, M. M., Periša, J., Zeković, I. Lj., Mitrić, M.,& Dramićanin, M.. (2020). Comparison of Three Ratiometric Temperature Readings from the Er3+ Upconversion Emission. in Nanomaterials, 10(4), 627.
https://doi.org/10.3390/nano10040627

Ćirić A, Aleksić J, Barudžija T, Antić Ž, Đorđević VR, Medić MM, Periša J, Zeković IL, Mitrić M, Dramićanin M. Comparison of Three Ratiometric Temperature Readings from the Er3+ Upconversion Emission. in Nanomaterials. 2020;10(4):627.
doi:10.3390/nano10040627 .

Ćirić, Aleksandar, Aleksić, Jelena, Barudžija, Tanja, Antić, Željka, Đorđević, Vesna R., Medić, Mina M., Periša, Jovana, Zeković, Ivana Lj., Mitrić, Miodrag, Dramićanin, Miroslav, "Comparison of Three Ratiometric Temperature Readings from the Er3+ Upconversion Emission" in Nanomaterials, 10, no. 4 (2020):627,
https://doi.org/10.3390/nano10040627 . .

TY  - JOUR
AU  - Antić, Željka
AU  - Prashanthi, Kovur
AU  - Kuzman, Sanja
AU  - Periša, Jovana
AU  - Ristić, Zoran
AU  - Palkar, Vaijayanti R.
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8998
AB  - A strategy for optical nanothermometry using the negative thermal quenching behavior of intrinsic BiFeO3semiconductor nanoparticles has been reported here. X-ray diffraction measurement shows polycrystalline BiFeO3nanoparticles with a rhombohedral distorted perovskite structure. Transmission electron microscopy shows agglomerated crystalline nanoparticles around 20 nm in size. Photoluminescence measurements show that intensity of the defect level emission increases significantly with temperature, while the intensity of near band emission and other defect levels emissions show an opposite trend. The most important figures of merit for luminescence nanothermometry: the absolute (Sa) and the relative sensor sensitivity (Sr) and the temperature resolution (?Tm) were effectively resolved and calculated. The relative sensitivity and temperature resolution values are found to be 2.5% K-1and 0.2 K, respectively which are among the highest reported values observed so far for semiconductors.
T2  - RSC Advances
T1  - Ratiometric temperature measurement using negative thermal quenching of intrinsic BiFeO3 semiconductor nanoparticles
VL  - 10
IS  - 29
SP  - 16982
EP  - 16986
DO  - 10.1039/D0RA01896A
ER  - 

@article{
author = "Antić, Željka and Prashanthi, Kovur and Kuzman, Sanja and Periša, Jovana and Ristić, Zoran and Palkar, Vaijayanti R. and Dramićanin, Miroslav",
year = "2020",
abstract = "A strategy for optical nanothermometry using the negative thermal quenching behavior of intrinsic BiFeO3semiconductor nanoparticles has been reported here. X-ray diffraction measurement shows polycrystalline BiFeO3nanoparticles with a rhombohedral distorted perovskite structure. Transmission electron microscopy shows agglomerated crystalline nanoparticles around 20 nm in size. Photoluminescence measurements show that intensity of the defect level emission increases significantly with temperature, while the intensity of near band emission and other defect levels emissions show an opposite trend. The most important figures of merit for luminescence nanothermometry: the absolute (Sa) and the relative sensor sensitivity (Sr) and the temperature resolution (?Tm) were effectively resolved and calculated. The relative sensitivity and temperature resolution values are found to be 2.5% K-1and 0.2 K, respectively which are among the highest reported values observed so far for semiconductors.",
journal = "RSC Advances",
title = "Ratiometric temperature measurement using negative thermal quenching of intrinsic BiFeO3 semiconductor nanoparticles",
volume = "10",
number = "29",
pages = "16982-16986",
doi = "10.1039/D0RA01896A"
}

Antić, Ž., Prashanthi, K., Kuzman, S., Periša, J., Ristić, Z., Palkar, V. R.,& Dramićanin, M.. (2020). Ratiometric temperature measurement using negative thermal quenching of intrinsic BiFeO3 semiconductor nanoparticles. in RSC Advances, 10(29), 16982-16986.
https://doi.org/10.1039/D0RA01896A

Antić Ž, Prashanthi K, Kuzman S, Periša J, Ristić Z, Palkar VR, Dramićanin M. Ratiometric temperature measurement using negative thermal quenching of intrinsic BiFeO3 semiconductor nanoparticles. in RSC Advances. 2020;10(29):16982-16986.
doi:10.1039/D0RA01896A .

Antić, Željka, Prashanthi, Kovur, Kuzman, Sanja, Periša, Jovana, Ristić, Zoran, Palkar, Vaijayanti R., Dramićanin, Miroslav, "Ratiometric temperature measurement using negative thermal quenching of intrinsic BiFeO3 semiconductor nanoparticles" in RSC Advances, 10, no. 29 (2020):16982-16986,
https://doi.org/10.1039/D0RA01896A . .

TY  - JOUR
AU  - Kuzman, Sanja
AU  - Periša, Jovana
AU  - Đorđević, Vesna R.
AU  - Zeković, Ivana Lj.
AU  - Vukoje, Ivana D.
AU  - Antić, Željka
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9098
AB  - A promising way to improve the performance of luminescent materials is to combine them with noble metal nanoparticles. Herein, a set of silver/europium-doped lanthanum orthophosphate (Ag/La0.95Eu0.05PO4) nanostructures with different concentrations of silver nanoparticles were prepared and investigated. The presented overlap between the strongest europium (Eu3+) excitation line and the broad silver nanoparticle surface plasmon resonance makes the combination prospective for coupling. X-ray powder diffraction confirmed the monoclinic monazite structure. The transmission electron microscopy revealed particles with a rod-like shape and ~4 aspect ratio. Photoluminescence spectra show characteristic Eu3+ ion red emission. One of the requirements for an enhanced luminescence effect is the precise control of the distance between the noble metal nanoparticles and the emitter ion. The distance is indirectly varied throughout the change of Ag nanoparticle concentration in the La0.95Eu0.05PO4 host. The emission intensity increases with the increase in Ag nanoparticles up to 0.6 mol %, after which the luminescence decreases due to the nanoparticles’ close packing and aggregation leading to the displacement of La0.95Eu0.05PO4 from the vicinity of the metal particles and reabsorption of the emitted light. The emission intensity of La0.95Eu0.05PO4 increases more than three times when the Eu3+ excitation is supported by the localized surface plasmon resonance in the Ag/La0.95Eu0.05PO4 nanostructures.
T2  - Materials
T1  - Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles
VL  - 13
IS  - 14
SP  - 3071
DO  - 10.3390/ma13143071
ER  - 

@article{
author = "Kuzman, Sanja and Periša, Jovana and Đorđević, Vesna R. and Zeković, Ivana Lj. and Vukoje, Ivana D. and Antić, Željka and Dramićanin, Miroslav",
year = "2020",
abstract = "A promising way to improve the performance of luminescent materials is to combine them with noble metal nanoparticles. Herein, a set of silver/europium-doped lanthanum orthophosphate (Ag/La0.95Eu0.05PO4) nanostructures with different concentrations of silver nanoparticles were prepared and investigated. The presented overlap between the strongest europium (Eu3+) excitation line and the broad silver nanoparticle surface plasmon resonance makes the combination prospective for coupling. X-ray powder diffraction confirmed the monoclinic monazite structure. The transmission electron microscopy revealed particles with a rod-like shape and ~4 aspect ratio. Photoluminescence spectra show characteristic Eu3+ ion red emission. One of the requirements for an enhanced luminescence effect is the precise control of the distance between the noble metal nanoparticles and the emitter ion. The distance is indirectly varied throughout the change of Ag nanoparticle concentration in the La0.95Eu0.05PO4 host. The emission intensity increases with the increase in Ag nanoparticles up to 0.6 mol %, after which the luminescence decreases due to the nanoparticles’ close packing and aggregation leading to the displacement of La0.95Eu0.05PO4 from the vicinity of the metal particles and reabsorption of the emitted light. The emission intensity of La0.95Eu0.05PO4 increases more than three times when the Eu3+ excitation is supported by the localized surface plasmon resonance in the Ag/La0.95Eu0.05PO4 nanostructures.",
journal = "Materials",
title = "Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles",
volume = "13",
number = "14",
pages = "3071",
doi = "10.3390/ma13143071"
}

Kuzman, S., Periša, J., Đorđević, V. R., Zeković, I. Lj., Vukoje, I. D., Antić, Ž.,& Dramićanin, M.. (2020). Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles. in Materials, 13(14), 3071.
https://doi.org/10.3390/ma13143071

Kuzman S, Periša J, Đorđević VR, Zeković IL, Vukoje ID, Antić Ž, Dramićanin M. Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles. in Materials. 2020;13(14):3071.
doi:10.3390/ma13143071 .

Kuzman, Sanja, Periša, Jovana, Đorđević, Vesna R., Zeković, Ivana Lj., Vukoje, Ivana D., Antić, Željka, Dramićanin, Miroslav, "Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles" in Materials, 13, no. 14 (2020):3071,
https://doi.org/10.3390/ma13143071 . .

TY  - JOUR
AU  - Papan, Jelena
AU  - Ristić, Zoran
AU  - Ćirić, Aleksandar
AU  - Kuzman, Sanja
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8901
AB  - The red phosphor Y2Mo4O15:Eu3+ calcined at different temperatures is obtained by a solid-state method, and is investigated in this article. Usage of solid-state method with the combination of five different calcination temperatures (500, 550, 600, 650, and 700 °C) leads to the formation of pure monoclinic phase in all samples apart from the one calcined at the lowest temperature. Crystallite size obtained by Rietveld refinement is in the range of 38–55 nm. Scanning electron microscopy analysis confirms the presence of agglomerates. Luminescence emission spectra and emission decay curves are measured for all pure samples, and parameters derived from these measurements are used for Judd–Ofelt analysis. International commission on illumination (CIE) chromaticity diagram confirms the presence of pure red emission and high quantum efficiency. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
T2  - Physica Status Solidi. B: Basic Research
T1  - Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures
VL  - 257
IS  - 8
SP  - 1900454
DO  - 10.1002/pssb.201900454
ER  - 

@article{
author = "Papan, Jelena and Ristić, Zoran and Ćirić, Aleksandar and Kuzman, Sanja and Dramićanin, Miroslav",
year = "2020",
abstract = "The red phosphor Y2Mo4O15:Eu3+ calcined at different temperatures is obtained by a solid-state method, and is investigated in this article. Usage of solid-state method with the combination of five different calcination temperatures (500, 550, 600, 650, and 700 °C) leads to the formation of pure monoclinic phase in all samples apart from the one calcined at the lowest temperature. Crystallite size obtained by Rietveld refinement is in the range of 38–55 nm. Scanning electron microscopy analysis confirms the presence of agglomerates. Luminescence emission spectra and emission decay curves are measured for all pure samples, and parameters derived from these measurements are used for Judd–Ofelt analysis. International commission on illumination (CIE) chromaticity diagram confirms the presence of pure red emission and high quantum efficiency. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
journal = "Physica Status Solidi. B: Basic Research",
title = "Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures",
volume = "257",
number = "8",
pages = "1900454",
doi = "10.1002/pssb.201900454"
}

Papan, J., Ristić, Z., Ćirić, A., Kuzman, S.,& Dramićanin, M.. (2020). Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures. in Physica Status Solidi. B: Basic Research, 257(8), 1900454.
https://doi.org/10.1002/pssb.201900454

Papan J, Ristić Z, Ćirić A, Kuzman S, Dramićanin M. Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures. in Physica Status Solidi. B: Basic Research. 2020;257(8):1900454.
doi:10.1002/pssb.201900454 .

Papan, Jelena, Ristić, Zoran, Ćirić, Aleksandar, Kuzman, Sanja, Dramićanin, Miroslav, "Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures" in Physica Status Solidi. B: Basic Research, 257, no. 8 (2020):1900454,
https://doi.org/10.1002/pssb.201900454 . .

TY  - JOUR
AU  - Sekulić, Milica
AU  - Ristić, Zoran
AU  - Milićević, Bojana R.
AU  - Antić, Željka
AU  - Đorđević, Vesna R.
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8421
AB  - In this work, the potential of Li1.8Na0.2TiO3:Mn4+ for the lifetime-based luminescence thermometry is assessed. The material is prepared by the solid-state reaction of Li2CO3, Na2CO3, and nanostructured TiO2 at 800 °C, and its monoclinic structure (space group C2/c) is confirmed by X-ray diffraction analysis. In this host, Mn4+ provides strong absorption around 330 nm and 500 nm due to 4A2g → 4T1g and 4A2g→ 4T2g electric dipole forbidden and spin-allowed electron transitions, respectively, and emits around 679 nm on account of 2Eg→ 4A2g spin forbidden electron transition. Temperature dependences of emission intensity and emission decay are measured over the 10–350 K range. Due to the low value of energy of 4T2g level (20000 cm−1), the strong emission quenching starts at low-temperatures which favors the use of this material for the luminescence thermometry. It is demonstrated that the quite large value of relative sensitivity (2.27% K−1@330 K) facilitates temperature measurements with temperature resolution better than 0.15 K, and with the excellent repeatability. © 2019 Elsevier B.V.
T2  - Optics Communications
T1  - Li1.8Na0.2TiO3:Mn4+: The highly sensitive probe for the low-temperature lifetime-based luminescence thermometry
VL  - 452
SP  - 342
EP  - 346
DO  - 10.1016/j.optcom.2019.07.056
ER  - 

@article{
author = "Sekulić, Milica and Ristić, Zoran and Milićević, Bojana R. and Antić, Željka and Đorđević, Vesna R. and Dramićanin, Miroslav",
year = "2019",
abstract = "In this work, the potential of Li1.8Na0.2TiO3:Mn4+ for the lifetime-based luminescence thermometry is assessed. The material is prepared by the solid-state reaction of Li2CO3, Na2CO3, and nanostructured TiO2 at 800 °C, and its monoclinic structure (space group C2/c) is confirmed by X-ray diffraction analysis. In this host, Mn4+ provides strong absorption around 330 nm and 500 nm due to 4A2g → 4T1g and 4A2g→ 4T2g electric dipole forbidden and spin-allowed electron transitions, respectively, and emits around 679 nm on account of 2Eg→ 4A2g spin forbidden electron transition. Temperature dependences of emission intensity and emission decay are measured over the 10–350 K range. Due to the low value of energy of 4T2g level (20000 cm−1), the strong emission quenching starts at low-temperatures which favors the use of this material for the luminescence thermometry. It is demonstrated that the quite large value of relative sensitivity (2.27% K−1@330 K) facilitates temperature measurements with temperature resolution better than 0.15 K, and with the excellent repeatability. © 2019 Elsevier B.V.",
journal = "Optics Communications",
title = "Li1.8Na0.2TiO3:Mn4+: The highly sensitive probe for the low-temperature lifetime-based luminescence thermometry",
volume = "452",
pages = "342-346",
doi = "10.1016/j.optcom.2019.07.056"
}

Sekulić, M., Ristić, Z., Milićević, B. R., Antić, Ž., Đorđević, V. R.,& Dramićanin, M.. (2019). Li1.8Na0.2TiO3:Mn4+: The highly sensitive probe for the low-temperature lifetime-based luminescence thermometry. in Optics Communications, 452, 342-346.
https://doi.org/10.1016/j.optcom.2019.07.056

Sekulić M, Ristić Z, Milićević BR, Antić Ž, Đorđević VR, Dramićanin M. Li1.8Na0.2TiO3:Mn4+: The highly sensitive probe for the low-temperature lifetime-based luminescence thermometry. in Optics Communications. 2019;452:342-346.
doi:10.1016/j.optcom.2019.07.056 .

Sekulić, Milica, Ristić, Zoran, Milićević, Bojana R., Antić, Željka, Đorđević, Vesna R., Dramićanin, Miroslav, "Li1.8Na0.2TiO3:Mn4+: The highly sensitive probe for the low-temperature lifetime-based luminescence thermometry" in Optics Communications, 452 (2019):342-346,
https://doi.org/10.1016/j.optcom.2019.07.056 . .