Self-referenced luminescence thermometry with Sm<sup>3+</sup> doped TiO<sub>2</sub> nanoparticles

Dramićanin, Miroslav D.; Antić, Željka; Ćulubrk, Sanja; Ahrenkiel, S. P.; Nedeljković, Jovan M.

doi:10.1088/0957-4484/25/48/485501

Cited by 66 publications

(25 citation statements)

References 24 publications

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“…Recently, the new concept of using the host luminescence for the uorescence intensity ratio method was introduced (see [14][15][16][17] and references therein). In our study, the method is improved by introducing the temporal dependence in the intensity ratio measurements, as proposed in [18].…”

Section: Temperature Sensing Using Gdvo 4 :Sm Nanophosphormentioning

confidence: 99%

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Rabasović

Križan

Savić-Šević

et al. 2018

Journal of Spectroscopy

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e gadolinium vanadate doped with samarium (GdVO 4 :Sm 3+ ) nanopowder was prepared by the solution combustion synthesis (SCS) method. After synthesis, in order to achieve the full crystallinity, the material was annealed in air atmosphere at 900°C. Phase identification in the postannealed powder samples was performed by X-ray diffraction, and morphology was investigated by high-resolution scanning electron microscopy (SEM). Photoluminescence characterization of the emission spectrum and timeresolved analysis have been performed using the tunable laser optical parametric oscillator excitation and the streak camera. Several strong emission bands in the Sm 3+ emission spectrum were observed, located at 567 nm ( 4 G 5/2 -6 H 5/2 ), 604 nm ( 4 G 5/2 -6 H 7/2 ), and 646 (654) nm ( 4 G 5/2 -6 H 9/2 ), respectively. e weak emission bands at 533 nm ( 4 F 3/2 -6 H 5/2 ) and 706 nm ( 4 G 5/2 -6 H 11/2 ) and a weak broad luminescence emission band of VO 4 3− were also observed by the detection system. We analyzed the possibility of using the host luminescence for two-color temperature sensing. e proposed method is improved by introducing the temporal dependence in the line intensity ratio measurements.

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Section: Temperature Sensing Using Gdvo 4 :Sm Nanophosphormentioning

confidence: 99%

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Rabasović

Križan

Savić-Šević

et al. 2018

Journal of Spectroscopy

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“…So far, luminescence based thermometry has been accomplished primarily with the use of polymers, organic dyes, lanthanide and transition metal ion doped nanoparticles, and quantum dots (QDs) by remotely measuring changes in luminescent properties such as absolute and relative emission intensities, excited state lifetime values, peak positions, and the emission bandwidth . Normally, in semiconductors, PL intensity decreases with increasing temperature (thermal quenching) mainly due to thermally‐induced delocalization of charge carriers and subsequent trapping by non‐fluorescent state . The PL spectra of semiconductor materials also suffers from non‐thermal quenching due to the change of carrier concentration and surface adsorption …”

Section: Table Summarizing Activation Energies For Negative Thermal Qmentioning

confidence: 99%

Surface State‐Induced Anomalous Negative Thermal Quenching of Multiferroic BiFeO₃ Nanowires

Prashanthi

Antić

Thakur

et al. 2017

Physica Rapid Research Ltrs

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Wide‐bandgap semiconductor nanowires with surface defect emission centers have the potential to be used as sensitive thermometers and optical probes. Here, we show that the green luminescence of multiferroic BiFeO3 (BFO) nanowires shows an anomalous negative thermal quenching (NTQ) with increasing temperatures. The release of trapped carriers from localized surface defect states is suggested as the possible mechanism for the increased green luminescence which was experimentally observed at elevated temperatures. A reasonable interpretation of the photoluminescence (PL) processes in BFO nanowires is achieved, and the activation energies of the PL quenching and thermal hopping are deduced. Negative thermal quenching of BFO nanowires provides a new strategy for optical thermometry at higher temperatures.

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“…Temperature dependence of the relative sensitivity, Figure (b), shows that the temperature onset of the applicability of the Li 2 TiO 3 :Mn 4+ is at about 50 K. In the second temperature region, up to 225 K, this material facilitates thermometry with a moderate temperature sensitivity (below 0.5%) and resolution. However, above 225 K, the relative change of the emission decay time value is very high and reaches 3.21%K −1 at 332 K. Knowing that uncertainty in lifetime measurements are relatively small (

σ % \leq 0.1 %)

, for example when compared with intensity based measurements which are foundation of an alternative temperature read‐out in luminescence thermometry (ratiometric luminescence thermometry), one may expect an exceptional temperature resolution to be achieved

(Δ T \leq 0.1 % / 3.21 % K^{- 1} = 0.031 K)

.…”

Section: Resultsmentioning

confidence: 99%

Li₂TiO₃:Mn⁴⁺ Deep‐Red Phosphor for the Lifetime‐Based Luminescence Thermometry

et al. 2019

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Luminescence of monoclinic lithium metatitanate (Li2TiO3) powders activated with different quantities of Mn4+ is studied in detail. Its strong deep‐red emission arising from the Mn4+ 2Eg → 4A2g spin forbidden transition is centered at around 688 nm and is suitable for luminescence thermometry. Structural and electron paramagnetic resonance analyses show that Mn4+ ions are equally distributed in two almost identical Ti4+ sites in which they are octahedrally coordinated by six oxygen ions. Calculations based on the exchange charge model of the crystal field provided values of Racah parameters (B=760 cm−1, C= 2993 cm−1), crystal‐field splitting Dq= 2043 cm−1, and the nephelauxetic parameter β1=0.9775. The maximal quantum efficiency of 24.1% at room temperature is found for 0.126% Mn4+ concentration. Temperature quenching of emission occurs by a cross‐over via 4T2 excited state of the Mn4+ ions with T1/2=262 K and is quite favorable for the application in the lifetime‐based luminescence thermometry since relative changes in emission decay values are exceptionally‐large (around 3.21% at room temperature). We derived theoretical expressions for the temperature dependence of the absolute and relative sensitivities and discuss the influence of host material properties on lifetime sensitivities.

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Self-referenced luminescence thermometry with Sm³⁺ doped TiO₂ nanoparticles

Cited by 66 publications

References 24 publications

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Surface State‐Induced Anomalous Negative Thermal Quenching of Multiferroic BiFeO₃ Nanowires

Li₂TiO₃:Mn⁴⁺ Deep‐Red Phosphor for the Lifetime‐Based Luminescence Thermometry

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Self-referenced luminescence thermometry with Sm3+ doped TiO2 nanoparticles

Cited by 66 publications

References 24 publications

Orange-Reddish Light Emitting Phosphor GdVO4:Sm3+ Prepared by Solution Combustion Synthesis

Orange-Reddish Light Emitting Phosphor GdVO4:Sm3+ Prepared by Solution Combustion Synthesis

Surface State‐Induced Anomalous Negative Thermal Quenching of Multiferroic BiFeO3 Nanowires

Li2TiO3:Mn4+ Deep‐Red Phosphor for the Lifetime‐Based Luminescence Thermometry

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Self-referenced luminescence thermometry with Sm³⁺ doped TiO₂ nanoparticles

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Surface State‐Induced Anomalous Negative Thermal Quenching of Multiferroic BiFeO₃ Nanowires

Li₂TiO₃:Mn⁴⁺ Deep‐Red Phosphor for the Lifetime‐Based Luminescence Thermometry