Structure-dependent luminescence of Eu<sup>3+</sup>-doped strontium vanadates synthesized with different V : Sr ratios – application in WLEDs and ultra-sensitive optical thermometry

Woźny, Przemysław; Carracedo, Kevin Soler; Stopikowska, Natalia; Martín-Benenzuela, Inocencio Rafael; Runowski, Marcin

doi:10.1039/d2tc05341a

Cited by 20 publications

(7 citation statements)

References 79 publications

(127 reference statements)

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“…Above this temperature, the sensitivity gradually decreases, through the values of 0.065, 0.055, and 0.045 nm K −1 observed for 380, 400, and 420 K, respectively. While there is a limited number of reports 68 on contactless thermometers based on the band shift at varying temperatures, our study highlights the broad operating temperature range of PTCDI-Ph (up to 450 K), low-temperature quenching, high signal stability, and its satisfactory sensitivity and repeatability.…”

Section: Resultsmentioning

confidence: 72%

Unlocking the sensing potential of phenyl-substituted perylene diimides under extreme conditions

Ratajczyk,

Sobczak,

Woźny

et al. 2023

J. Mater. Chem. C

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Section: Resultsmentioning

confidence: 72%

Unlocking the sensing potential of phenyl-substituted perylene diimides under extreme conditions

Ratajczyk,

Sobczak,

Woźny

et al. 2023

J. Mater. Chem. C

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“…A reliable luminescent thermometer must exhibit monotonic changes within its thermal operating range. Consequently, the reversal of monotonicity in LIRs above the phase transition temperature precludes their use at high temperatures. , Relative thermal sensitivities were therefore determined within the temperature range below the temperature corresponding to the maximum LIR value (Figure d). As expected, the temperature at which the maximum sensitivity ratio ( S R ) value was achieved decreases monotonically with increasing dopant concentration (Figure e).…”

Section: Resultsmentioning

confidence: 99%

The Butterfly Effect: Multifaceted Consequences of Sensitizer Concentration Change in Phase Transition-based Luminescent Thermometer of LiYO₂:Er³⁺,Yb³⁺

Marciniak,

Piotrowski,

Szymczak

et al. 2024

ACS Appl. Mater. Interfaces

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In response to the ongoing quest for new, highly sensitive upconverting luminescent thermometers, this article introduces, for the first time, upconverting luminescent thermometers based on thermally induced structured phase transitions. As demonstrated, the transition from the low-temperature monoclinic to the high-temperature tetragonal structures of LiYO2:Yb3+,Er3+ induces multifaceted modification in the spectroscopic properties of the examined material, influencing the spectral positions of luminescence bands, energy gap values between thermally coupled energy levels, and the red-to-green emission intensities ratio. Moreover, as illustrated, both the color of the emitted light and the phase transition temperature (from 265 K, for LiYO2:Er3+, 1%Yb3+, to 180 K, for 10%Yb3+), and consequently, the thermometric parameters of the luminescent thermometer can be modulated by the concentration of Yb3+ sensitizer ions. Establishing a correlation between the phase transition temperature and the mismatch of ion radii between the host material and dopant ions allows for smooth adjustment of the thermometric performance of such a thermometer following specific application requirements. Three different thermometric approaches were investigated using thermally coupled levels (S R = 1.8%/K at 180 K for 1%Yb3+), green to red emission intensities ratio (S R = 1.5%/K at 305 K for 2%Yb3+), and single band ratiometric approach (S R = 2.5%/K at 240 K for 10%Yb3+). The thermally induced structural phase transition in LiYO2:Er3+,Yb3+ has enabled the development of multiple upconverting luminescent thermometers. This innovative approach opens avenues for advancing the field of luminescence thermometry, offering enhanced relative thermal sensitivity and adaptability for various applications.

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“…where φ is the quantum yield, I emEu 3+ is the integrated intensity of sample luminescence, and I exLa 2 O 3 and I exEu 3+ are the integrated intensities of scattered excitation radiation not absorbed by the reference (La 2 O 3 ) and the integrated intensities of the scattered excitation light for the investigated material, respectively. All procedures were carried out in accordance with [64,65]. The luminescence quantum yield was calculated as 0.023.…”

Section: Luminescence Investigationsmentioning

confidence: 99%

A Series of Novel 3D Coordination Polymers Based on the Quinoline-2,4-dicarboxylate Building Block and Lanthanide(III) Ions—Temperature Dependence Investigations

Vlasyuk,

Łyszczek,

Mazur

et al. 2023

Molecules

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A series of novel 3D coordination polymers [Ln2(Qdca)3(H2O)x]·yH2O (x = 3 or 4, y = 0–4) assembled from selected lanthanide ions (Ln(III) = Nd, Eu, Tb, and Er) and a non-explored quinoline-2,4-dicarboxylate building block (Qdca2− = C11H5NO42−) were prepared under hydrothermal conditions at temperatures of 100, 120, and 150 °C. Generally, an increase in synthesis temperature resulted in structural transformations and the formation of more hydrated compounds. The metal complexes were characterized by elemental analysis, single-crystal and powder X-ray diffraction methods, thermal analysis (TG-DSC), ATR/FTIR, UV/Vis, and luminescence spectroscopy. The structural variety of three-dimensional coordination polymers can be ascribed to the temperature effect, which enforces the diversity of quinoline-2,4-dicarboxylate ligand denticity and conformation. The Qdca2− ligand only behaves as a bridging or bridging–chelating building block binding two to five metal centers with seven different coordination modes arising mainly from different carboxylate group coordination types. The presence of water molecules in the structures of complexes is crucial for their stability. The removal of both coordinated and non-coordinated water molecules leads to the disintegration and combustion of metal–organic frameworks to the appropriate lanthanide oxides. The luminescence features of complexes, quantum yield, and luminescent lifetimes were measured and analyzed. Only the Eu complexes show emission in the VIS region, whereas Nd and Er complexes emit in the NIR range. The luminescence properties of complexes were correlated with the crystal structures of the investigated complexes.

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Structure-dependent luminescence of Eu³⁺-doped strontium vanadates synthesized with different V : Sr ratios – application in WLEDs and ultra-sensitive optical thermometry

Abstract: This paper focuses mainly on luminescence color tuning, white light generation and ultra-sensitive temperature sensing based on complex strontium vanadates doped with Eu3+ ions. A series of materials whose crystal...

Cited by 20 publications

References 79 publications

Unlocking the sensing potential of phenyl-substituted perylene diimides under extreme conditions

Unlocking the sensing potential of phenyl-substituted perylene diimides under extreme conditions

The Butterfly Effect: Multifaceted Consequences of Sensitizer Concentration Change in Phase Transition-based Luminescent Thermometer of LiYO₂:Er³⁺,Yb³⁺

A Series of Novel 3D Coordination Polymers Based on the Quinoline-2,4-dicarboxylate Building Block and Lanthanide(III) Ions—Temperature Dependence Investigations

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Structure-dependent luminescence of Eu3+-doped strontium vanadates synthesized with different V : Sr ratios – application in WLEDs and ultra-sensitive optical thermometry

Abstract: This paper focuses mainly on luminescence color tuning, white light generation and ultra-sensitive temperature sensing based on complex strontium vanadates doped with Eu3+ ions. A series of materials whose crystal...

Cited by 20 publications

References 79 publications

Unlocking the sensing potential of phenyl-substituted perylene diimides under extreme conditions

Unlocking the sensing potential of phenyl-substituted perylene diimides under extreme conditions

The Butterfly Effect: Multifaceted Consequences of Sensitizer Concentration Change in Phase Transition-based Luminescent Thermometer of LiYO2:Er3+,Yb3+

A Series of Novel 3D Coordination Polymers Based on the Quinoline-2,4-dicarboxylate Building Block and Lanthanide(III) Ions—Temperature Dependence Investigations

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Product

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Structure-dependent luminescence of Eu³⁺-doped strontium vanadates synthesized with different V : Sr ratios – application in WLEDs and ultra-sensitive optical thermometry

The Butterfly Effect: Multifaceted Consequences of Sensitizer Concentration Change in Phase Transition-based Luminescent Thermometer of LiYO₂:Er³⁺,Yb³⁺