Less is more: dimensionality reduction as a general strategy for more precise luminescence thermometry

Ximendes, Erving; Marin, Riccardo; Carlos, Luı́s D.; Jaque, Daniel

doi:10.1038/s41377-022-00932-3

Cited by 56 publications

(48 citation statements)

References 45 publications

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“…Among which. lifetime-based nanothermometry, machine-learning-driven data analysis, , and more sophisticated excitation–emission schemes have the potential to make luminescence nanothermometry a routinely used practical tool in fundamental biomedical research.…”

Section: Near-infrared Luminescence For Biomedical Applicationsmentioning

confidence: 99%

The Coming of Age of Neodymium: Redefining Its Role in Rare Earth Doped Nanoparticles

et al. 2022

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Among luminescent nanostructures actively investigated in the last couple of decades, rare earth (RE3+) doped nanoparticles (RENPs) are some of the most reported family of materials. The development of RENPs in the biomedical framework is quickly making its transition to the ∼800 nm excitation pathway, beneficial for both in vitro and in vivo applications to eliminate heating and facilitate higher penetration in tissues. Therefore, reports and investigations on RENPs containing the neodymium ion (Nd3+) greatly increased in number as the focus on ∼800 nm radiation absorbing Nd3+ ion gained traction. In this review, we cover the basics behind the RE3+ luminescence, the most successful Nd3+-RENP architectures, and highlight application areas. Nd3+-RENPs, particularly Nd3+-sensitized RENPs, have been scrutinized by considering the division between their upconversion and downshifting emissions. Aside from their distinctive optical properties, significant attention is paid to the diverse applications of Nd3+-RENPs, notwithstanding the pitfalls that are still to be addressed. Overall, we aim to provide a comprehensive overview on Nd3+-RENPs, discussing their developmental and applicative successes as well as challenges. We also assess future research pathways and foreseeable obstacles ahead, in a field, which we believe will continue witnessing an effervescent progress in the years to come.

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Section: Near-infrared Luminescence For Biomedical Applicationsmentioning

confidence: 99%

The Coming of Age of Neodymium: Redefining Its Role in Rare Earth Doped Nanoparticles

et al. 2022

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“…This semi-invasive method offers reliable, precise, fast, and single-point or 2D thermal imaging in a wide temperature range, which can range from cryogenic temperatures to approximately 1700 °C [ 6 ]. It can be applied to macroscopic and microscopic systems, large surfaces, in vivo [ 7 , 8 ], fiber-optic probes [ 9 , 10 , 11 ], corrosive, radioactive environments [ 12 ], or high electromagnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Exploiting High-Energy Emissions of YAlO3:Dy3+ for Sensitivity Improvement of Ratiometric Luminescence Thermometry

Periša

Ćirić

Zeković

et al. 2022

Sensors

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The sensitivity of luminescence thermometry is enhanced at high temperatures when using a three-level luminescence intensity ratio approach with Dy3+- activated yttrium aluminum perovskite. This material was synthesized via the Pechini method, and the structure was verified using X-ray diffraction analysis. The average crystallite size was calculated to be around 46 nm. The morphology was examined using scanning electron microscopy, which showed agglomerates composed of densely packed, elongated spherical particles, the majority of which were 80–100 nm in size. The temperature-dependent photoluminescence emission spectra (ex = 353 nm, 300–850 K) included Dy3+ emissions in blue (458 nm), blue (483 nm), and violet (430 nm, T 600 K). Luminescence intensity ratio, the most utilized temperature readout method in luminescent thermometry, was used as the testing method: a) using the intensity ratio of Dy3+ ions and 4I15/2→6H15/2/4F9/2→6H15/2 transitions; and b) employing the third, higher energy 4G11/2 thermalized level, i.e., using the intensity ratio of 4G11/2→6H15/2/4F9/2→6H15/2 transitions, thereby showing the relative sensitivities of 0.41% K−1 and 0.86% K−1 at 600 K, respectively. This more than doubles the increase in sensitivity and therefore demonstrates the method’s usability at high temperatures, although the major limitation of the method is the chemical stability of the host material and the temperature at which the temperature quenching commences. Lastly, it must be noted that at 850 K, the emission intensities from the energetically higher levels were still increasing in YAP: Dy3+.

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“…However, it has been reported that the use of a combination of distinct thermometric parameters could improve the reliability of thermometers [ 28 , 29 , 30 , 31 , 32 ]. In addition to reliability, this multiparametric approach could significantly improve the relative thermal sensitivity and temperature resolution of the sensor using a multiple linear regression-based strategy proposed by Carlos et al [ 33 , 34 ]. Another strategy to use several temperature-dependent luminescence parameters for the enhancement of thermometric characteristics has been reported by Khodasevich et al [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

ZnTe Crystal Multimode Cryogenic Thermometry Using Raman and Luminescence Spectroscopy

2023

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In this study, ZnTe crystal was applied to provide precise thermal sensing for cryogenic temperatures. Multiple techniques, namely Raman and photoluminescence spectroscopies, were used to broaden the operating temperature range and improve the reliability of the proposed thermometers. Raman-based temperature sensing could be applied in the range of 20–100 K, while luminescence-based thermometry could be utilized in a narrower range of 20–70 K. However, the latter strategy provides better relative thermal sensitivity and temperature resolution. The best thermal performances based on a single temperature-dependent parameter attain Sr = 3.82% K−1 and ΔT = 0.12 K at T = 50 K. The synergy between multiple linear regression and multiparametric thermal sensing demonstrated for Raman-based thermometry results in a ten-fold improvement of Sr and a two-fold enhancement of ΔT. All studies performed testify that the ZnTe crystal is a promising multimode contactless optical sensor for cryogenic thermometry.

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Less is more: dimensionality reduction as a general strategy for more precise luminescence thermometry

Cited by 56 publications

References 45 publications

The Coming of Age of Neodymium: Redefining Its Role in Rare Earth Doped Nanoparticles

The Coming of Age of Neodymium: Redefining Its Role in Rare Earth Doped Nanoparticles

Exploiting High-Energy Emissions of YAlO3:Dy3+ for Sensitivity Improvement of Ratiometric Luminescence Thermometry

ZnTe Crystal Multimode Cryogenic Thermometry Using Raman and Luminescence Spectroscopy

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