Effect of synthesis conditions and surrounding medium on luminescence properties of YVO4:Eu3+ nanopowders

Афанасьева, Е. В.; Tolstikova, D.V.; Kolesnikov, Ilya E.; Михайлов, М. Н.

doi:10.1016/s1002-0721(14)60392-6

Cited by 37 publications

(10 citation statements)

References 21 publications

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“…Golyeva et al synthesized YVO 4 :Eu 3+ nanomaterials in KCl molten salt . Alsheri et al recently synthesized ZnWO 4 and NiWO 4 nanobricks using the MSS. , NiWO 4 nanobricks with a diameter of ∼20 nm and a high surface area of ∼25 m 2 /g were synthesized in the molten salt of NaNO 3 + KNO 3 (Figure S9).…”

Section: Metal Oxide Nanomaterials Synthesized By the Mssmentioning

confidence: 99%

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

2021

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A wide range of inorganic nanomaterials with many fascinating properties and application potentials in widespread fields may be synthesized by wet chemical synthetic routes. To achieve scientific and commercial viability of nanomaterials with uniformity and scalability, it is necessary to develop efficient and cost-effective, preferably sustainable, methods. The molten salt synthesis (MSS) method is one such bottom-up technique to fabricate a wide variety of inorganic nanomaterials with tunable size, morphology, and surface characteristics. It is also environmentally friendly, cost-effective, simple to operate, easy to scale, and generalizable, etc. This review gives a critical overview on this emerging and rapidly developing method for making defect free nanomaterials in well-defined texture, surface, and morphology at a relatively low formation temperature. We have discussed its different aspects, including the role of molten salts, the choice of molten salts, the electrochemical aspects, some advanced modifications of the conventional MSS technique, and their implications. To show the most recent development on MSS synthesized inorganic nanomaterials, this review only encompasses the studies reported over the last six years (2015−2020). We have summarized technologically important and emerging families of inorganic nanomaterials such as metal oxides, fluorides, nitrides, silicides, chalcogenides, oxohalides, borides, and carbides. Finally, a few perspectives for the MSS method are highlighted. It is expected that this review will further attract scientists to explore the MSS method in making size-and shape-tunable nanomaterials.

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Section: Metal Oxide Nanomaterials Synthesized By the Mssmentioning

confidence: 99%

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

2021

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“…On the other hand, the temperature must be higher than the melting point of the salt so that the aggregate state of the reaction environment is liquid. The amorphous oxide precursor was annealed in the potassium chloride melt at 950 °C for 1.5 h. This synthesis temperature and duration of calcination time were earlier experimentally selected and optimized . The additional stage suggested by the authors allows obtaining crystalline particles with weak agglomeration.…”

Section: Methodsmentioning

confidence: 99%

“…The amorphous oxide precursor was annealed in the potassium chloride melt at 950 °C for 1.5 h. This synthesis temperature and duration of calcination time were earlier experimentally selected and optimized. 31 The additional stage suggested by the authors allows obtaining crystalline particles with weak agglomeration. This positively affects the luminescence properties of the material.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Optical Thermometry by Monitoring Dual Emissions from YVO₄ and Eu³⁺ in YVO₄:Eu³⁺ Nanoparticles

Kolesnikov

Mamonova

Kurochkin

et al. 2021

ACS Appl. Nano Mater.

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Contactless optical thermometry is successfully applied for accurate local temperature sensing in many scientific and technological areas. Majority of optical thermometers utilize a ratiometric approach between thermally coupled levels. Such sensors have an inherent limitation of relative thermal sensitivity linked to the maximal energy gap between these levels, which can make them useless for some important applications. Here we report simple dual-center YVO 4 :Eu 3+ thermometers that do not have this limitation. Thermal sensing using YVO 4 :Eu 3+ nanoparticles is based on monitoring luminescence intensity ratio between YVO 4 host emission and Eu 3+ luminescence lines. By taking advantage of the different temperature behavior of the aforementioned emission bands, contactless sensing was demonstrated within 123-423 K range.High thermometric performances including sub-degree temperature resolution (up to 0.2 K) and relative thermal sensitivity (up to 1.4 % K -1 ) at room temperature reveal the good potential of YVO 4 :Eu 3+ phosphors for thermometry and lay a foundation for the future development of dualcenter probes.

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“…The obtained powder was grinded in mortar and the potassium chloride was added to it in the weight ratio 1:1 and milled together in mortar. Then, the resulting powder mixture was calcined for the second time at 950 °C for 1.5 h. The used calcination temperatures, durations, and Eu 3+ doping concentration were optimal and have been found in our earlier works. − To remove potassium chloride, the powder was washed off with distilled water. The synthesized particles were collected by centrifugation at 2500 rpm for 5 min.…”

Section: Methodsmentioning

confidence: 99%

Ratiometric Optical Thermometry Based on Emission and Excitation Spectra of YVO₄:Eu³⁺ Nanophosphors

et al. 2019

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Development of new approaches to the noncontact optical thermometry is of great importance for modern science and technology. In the current work, single-phase YVO 4 :Eu 3+ nanoparticles prepared via the modified Pechini technique were studied as luminescence thermometers. Thermal sensing was performed using two different ratiometric approaches: utilizing the luminescence intensity ratio between transitions emitted from two thermally coupled excited levels (emission spectrum) and between transitions originating from different thermally coupled low-lying levels (excitation spectrum). The first technique allows determining temperature within the 298−873 K range, whereas the second one allows determining temperature within 298−473 K. The spectral position of the 5 D 0 (1)− 7 F 1 (2) band was also suggested as a temperaturedependent parameter. Thermometric performance of YVO 4 :Eu 3+ nanophosphors including absolute and relative sensitivities, minimum temperature uncertainty, and repeatability was obtained and discussed.

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Effect of synthesis conditions and surrounding medium on luminescence properties of YVO4:Eu3+ nanopowders

Cited by 37 publications

References 21 publications

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

Optical Thermometry by Monitoring Dual Emissions from YVO₄ and Eu³⁺ in YVO₄:Eu³⁺ Nanoparticles

Ratiometric Optical Thermometry Based on Emission and Excitation Spectra of YVO₄:Eu³⁺ Nanophosphors

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Effect of synthesis conditions and surrounding medium on luminescence properties of YVO4:Eu3+ nanopowders

Cited by 37 publications

References 21 publications

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

Optical Thermometry by Monitoring Dual Emissions from YVO4 and Eu3+ in YVO4:Eu3+ Nanoparticles

Ratiometric Optical Thermometry Based on Emission and Excitation Spectra of YVO4:Eu3+ Nanophosphors

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Product

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Optical Thermometry by Monitoring Dual Emissions from YVO₄ and Eu³⁺ in YVO₄:Eu³⁺ Nanoparticles

Ratiometric Optical Thermometry Based on Emission and Excitation Spectra of YVO₄:Eu³⁺ Nanophosphors