Eu3+- doped alumino-phosphate glass for ratiometric thermometer based on the excited state absorption

Morassuti, Claudio Yamamoto; Nunes, L.A.O.; Lima, S.M.; Andrade, L.H.C.

doi:10.1016/j.jlumin.2017.09.001

Cited by 52 publications

(23 citation statements)

References 20 publications

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“…In recent years, a new type of luminescent nanothermometer has begun to gain popularity, using simple, single-doped compounds and convenient measuring systems, namely, phosphors with one type of optically active ion excited sequentially by two different wavelengths. − If the intensity of a chosen emission band depends differently on the temperature in two excitation regimes, it is possible to use the single-band-ratiometric (SBR)-approach technique. For such an approach, phosphors doped with trivalent lanthanide (Ln 3+ ) ions proved to be the most suitable because they exhibit well-separated energy levels, which is beneficial in the SBR approach.…”

Section: Introductionmentioning

confidence: 99%

KLaP₄O₁₂:Tb³⁺ Nanocrystals for Luminescent Thermometry in a Single-Band-Ratiometric Approach

Drabik

Marciniak

2020

ACS Appl. Nano Mater.

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One of the challenges currently facing luminescent thermometry is providing an in-depth analysis of thermally dependent processes occurring in the studied type of nanothermometer. By understanding all possible thermal phenomena, the properties of a given kind of nanosensor can be intentionally improved. Verification of the existing theories on a nanometric scale is particularly important. In this work, a comprehensive characterization of the structural and optical properties of nanocrystalline KLaP4O12 doped with different concentrations of Tb3+ ions was performed. It was shown that Tb3+ ions excited using two distinct wavelengths matched to the ground- and excited-state absorption show luminescences of opposite thermal dependencies. This enabled the single-band-ratiometric (SBR) thermometric approach to be implemented. The experimentally obtained results turned out to be consistent with the proposed form of state equations describing the dynamics of populating Tb3+ energy levels as a function of the temperature. As reported here, the first SBR nanothermometer based on Tb3+ ion emission stands out because of its nanometric size and high relative sensitivity, reaching 5%/°C at 0 °C. Finally, on the basis of modeling changes in the individual parameters in the state equations, their impact on the results obtained for SBR thermometers based on Tb3+ ions was widely discussed.

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Section: Introductionmentioning

confidence: 99%

KLaP₄O₁₂:Tb³⁺ Nanocrystals for Luminescent Thermometry in a Single-Band-Ratiometric Approach

Drabik

Marciniak

2020

ACS Appl. Nano Mater.

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“…The obtained S r values were found to be 1.17 and 1.40 % K -1 at 298 K for YVO 4 :Eu 3+ 0.01 at.% and YVO 4 :Eu 3+ 0.1 at.% nanothermometers, respectively. These values are comparable with sensitivities of ratiometric Eu 3+doped thermometers utilizing thermoequilibrium between two ground energy levels: 1.23 % K -1 (YVO 4 :Eu 3+ ), 35 1 % K -1 (Y 2 O 3 :Eu 3+ ), 36 0.9 % K -1 (Eu 3+ -doped alumino-phosphate glass), 37 Temperature resolution (ΔT) defines how accurate temperature measurement could be done utilizing a particular thermometer. Our earlier research has demonstrated that ΔT value can be obtained via different experimental methods: from the temperature calibration curve, from the measurement of emission spectra series at the same temperature or from the monitoring of sample's cooling down.…”

Section: Methodsmentioning

confidence: 53%

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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“…However, as it has been shown recently, when the excitation wavelength is deliberately selected to induce excited state absorption of the optically active ions, their emission intensity may reveal a profound enhancement at elevated temperatures. This unique thermal dependence enabled to develop the so-called single band ratiometric (SBR) thermometric approach, which has been gaining popularity lately. − In its most successful formulation, it bases on lanthanide ions’ emission induced by two distinct excitation lines, matched to the ground-state absorption (GSA) and to the absorption from the thermally coupled excited state (ESA). Switching the excitation wavelength results in obtaining a completely different dependence of a given ion emission intensity on temperaturea strong increase in one excitation regime and a decrease or an invariability upon the second excitation.…”

Section: Introductionmentioning

confidence: 99%

“…Switching the excitation wavelength results in obtaining a completely different dependence of a given ion emission intensity on temperaturea strong increase in one excitation regime and a decrease or an invariability upon the second excitation. A high applicative potential of several lanthanide ions like Tb 3+ , Nd 3+ , and Eu 3+ − has already been experimentally confirmed. The phenomenon of the strong increase in the intensity of the emission of Tb 3+ ions with the ESA-matched excitation causing the 7 F 5 → 5 D 3 transition was proven to provide a significantly high S r in the SBR configuration.…”

Section: Introductionmentioning

confidence: 99%

Excited State Absorption for Ratiometric Thermal Imaging

Drabik

Marciniak

2020

ACS Appl. Mater. Interfaces

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Luminescence thermometry, an alternative to thermal imaging using the thermovision technique, requires the development of new approaches and a thorough understanding of the physical phenomena involved, in order to improve the temperature readout parameters. A phenomenon that has recently been shown to cause an extremely strong increase in the emission intensity for the temperature elevation is the thermally induced excited state absorption. This work demonstrates that taking advantage of the strong thermal dependence of the thermally induced excited state absorption process, the limitation associated with the two thermally coupled excited levels usually involved in the ratiometric temperature readout can be overcome, improving the thermometric properties of the luminescent thermometer. The same excitation wavelength was used to induce the emission resulting from the thermally induced excited state absorption of the Tb3+ ions and ground-state absorption of the other type of co-dopant ions causing the opposite nature of the thermal dependence of their emission intensities. Moreover, thanks to the strong color changes exhibited by the phosphors, it was possible to demonstrate the applicability of the proposed approach for through-object 2D thermal imaging of a microelectronic printed circuit board covered with a glass plate using an ordinary commercial digital camera, where the thermovision camera fails.

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Eu3+- doped alumino-phosphate glass for ratiometric thermometer based on the excited state absorption

Cited by 52 publications

References 20 publications

KLaP₄O₁₂:Tb³⁺ Nanocrystals for Luminescent Thermometry in a Single-Band-Ratiometric Approach

KLaP₄O₁₂:Tb³⁺ Nanocrystals for Luminescent Thermometry in a Single-Band-Ratiometric Approach

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

Excited State Absorption for Ratiometric Thermal Imaging

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Eu3+- doped alumino-phosphate glass for ratiometric thermometer based on the excited state absorption

Cited by 52 publications

References 20 publications

KLaP4O12:Tb3+ Nanocrystals for Luminescent Thermometry in a Single-Band-Ratiometric Approach

KLaP4O12:Tb3+ Nanocrystals for Luminescent Thermometry in a Single-Band-Ratiometric Approach

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

Excited State Absorption for Ratiometric Thermal Imaging

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KLaP₄O₁₂:Tb³⁺ Nanocrystals for Luminescent Thermometry in a Single-Band-Ratiometric Approach

KLaP₄O₁₂:Tb³⁺ Nanocrystals for Luminescent Thermometry in a Single-Band-Ratiometric Approach

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