Optical thermometry based on up-conversion luminescence behavior in BaGdF5:Er3+ glass ceramics

Hu, Fangfang; Lu, Siqi; Jiang, Ya Dong; Wei, Rongfei; Guo, Hai; Yin, Min

doi:10.1016/j.jlumin.2019.116971

Cited by 22 publications

(6 citation statements)

References 37 publications

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“…However, S r corresponding to the same thermally coupled energy level was only negatively correlated with temperature (eq ), such that S r values showed a downward trend with increased temperature, and the maximum values were 0.0125 and 0.0173 K –1 at 303 K, respectively. The variation trend of sensitivity with temperature was the same as that of the other reported literature. ,,, Clearly, sensitization and influence on the crystal field of Yb 3+ ions improved the FIR value, compared with other Er 3+ /Yb 3+ codoped samples , and then significantly improved the temperature sensing performance of these KNN ceramics. These materials were comparable to other reported Er 3+ -doped UC ferroelectrics in terms of 2 H 11/2 / 4 S 3/2 → 4 I 15/2 transitions for temperature sensing (Figure ) ,− …”

Section: Results and Discussionsupporting

confidence: 82%

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Zhao

Wang

Zhang

et al. 2020

ACS Appl. Electron. Mater.

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Environment-friendly potassium sodium niobate-based ferroelectrics have been widely and deeply studied for their electrical properties, but there remains much potential for applications in other fields, one of which is in optical temperature sensing. Herein, a host (K,Na)Li0.04NbO3:0.5 mol% Er material with an orthogonal–tetragonal phase transition was constructed by Li+ regulation and then increased Yb2O3 codoping used to promote the occurrence of orthogonal to tetragonal and tetragonal to pseudocubic phase transitions. Interestingly, codoping with Yb2O3 as a sensitizer and phase structural changes regulated the resulting materials’ luminescent characteristics and greatly enhanced luminescence intensity and temperature sensing properties, compared with those of merely Er3+-doped samples. In addition, strong green and red light emissions were related to the large absorption cross-section of Yb3+ near 980 nm, which transferred more energy to Er3+. In particular, significantly enhanced red light, or red shift, was associated with energy back transfer at high Yb3+ concentrations. Furthermore, the optimal ceramic was (K, Na)Li0.04NbO3:0.5 mol % Er/2.5 mol % Yb (KNL0.04N:0.5 Er/2.5 Yb), and its maximum absolute and relative sensitivity of 0.0112 and 0.0173 K–1, respectively, which were higher than those of other reports. These results showed that KNL0.04N:0.5Er/2.5Yb lead-free ceramic possessed the potential to be an excellent optical temperature sensor with high intensity and sensitivity.

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Section: Results and Discussionsupporting

confidence: 82%

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Zhao

Wang

Zhang

et al. 2020

ACS Appl. Electron. Mater.

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“…In terms of the multiphonon assisted UC process, it is confirmed that the UC emission intensity (i.e., I UC ) and laser pump power (i.e., P) obey the relationship of I UC ∝P n (herein, n denotes the amounts of photons that are necessary to populate the desired excited levels). [45][46][47] Figure 5e shows the double logarithm curves of UC emission intensity versus pump power so as to find out the n value. Through linearly fitting these raw data, one knows that the slope values of the UC emissions at 529, 546, and 662 nm are 1.90, 1.63, and 1.45, respectively.…”

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

Facile Realization of Boosted Near‐Infrared‐Visible Light Driven Photocatalytic Activities of BiOF Nanoparticles through Simultaneously Exploiting Doping and Upconversion Strategy

Ran

Wang

et al. 2021

Adv Materials Inter

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In spite of this, one of the unavoidable issues of photocatalysis is how to take advantage of solar energy efficiently. As we know, the sunlight can be roughly divided into three parts, that is, ultraviolet, visible and near-infrared (NIR) light, in which they take around 5%, 45%, and 50% energy of the sunlight, respectively. [6,7] To date, these widely used photocatalysts, such as ZnO, WO 3 , and TiO 2 , suffer from narrow absorption edge, where the energy originating from visible and NIR light is wasted, resulting in dissatisfied photocatalytic properties. [8][9][10] In order to tackle this shortage, researchers tried to find out other semiconductors and some nano-sized compounds, such as CaAl 5 Fe 7 O 19 , ZnS-CdS, and SiO 2 -TiO 2 , which were promising candidates for photocatalytic and antibacterial applications, were proposed. [11][12][13][14] Thereby, searching for novel semiconductors is a facile and efficient route to develop highly efficient photocatalytic materials.Over the last decades, considerable attention has been attracted in bismuth containing semiconductors since they exhibit promising applications in photocatalysis owing to their superiorities including high stability, suitable energy band gap (i.e., E g ), and nontoxicity. [15,16] Shi et al. reported that the Bi 5 OI 7 and BiO 5 I 2 semiconductors with admirable photocatalytic activities can utilize both ultraviolet and visible lights. [17] As a member of bismuth containing semiconductors, the investigation on the photocatalytic properties of BiOX (X = F, Cl, Br, and I), which displays unique matlockite structure with [XBiOOBiX] layers, has been intensively performed. [18,19] Particularly, with the help of weak nonbonding van der Waals interaction along the c-axis, [Bi 2 O 2 ] 2+ slabs with positive valence are interleaved by means of two halide ions, leading to the production of internal electric field along the caxis. [18] Note that, the occurrence of the internal electric field enables the separation of electron-hole pairs more efficiently which gives rise to admirable photocatalytic behaviors of BiOX. At present, it has been revealed that the BiOX compounds can capture both ultraviolet and visible lights to photodegrade pollutants (i.e., RhB, methyl orange). [20,21] Nevertheless, these currently developed BiOX photocatalysts still own some deficiencies, such as the harvest of NIR light is insufficient and A facile strategy is put forward to improve the photocatalytic activity of BiOF nanoparticles by simultaneously exploiting doping and upconversion engineering. The Er 3+ /Yb 3+ -codoped BiOF nanoparticles are synthesized via using high-temperature solid-state reaction route. Through employing firstprinciples density functional theory, one knows that the electronic structure of BiOF host is greatly impacted by Er 3+ and Yb 3+ ions doping. Excited by 980 nm, bright upconversion emissions are seen in prepared compounds and their maximum intensities are obtained when x = 0.04. Furthermore, the photocatalytic capacity of the designed n...

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“…When the temperature changes, the fluorescence intensity ratio (FIR) at the thermal coupling level can synchronize the temperature response and provide accurate self-reference photothermometry. 9–17 However, the mainstream of this method is single-light feedback using up-conversion (UC) fluorescence. On this basis, the addition of an auxiliary response improves the accuracy of temperature detection, but this novel method was rarely mentioned in past research.…”

Section: Introductionmentioning

confidence: 99%

A dual-ratiometric optical thermometry based on Sr₂LaF₇:Er³⁺ crystal-implanted pliable fibers

Pun

et al. 2022

Dalton Trans.

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Optical thermometry based on up-conversion luminescence behavior in BaGdF5:Er3+ glass ceramics

Cited by 22 publications

References 37 publications

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Facile Realization of Boosted Near‐Infrared‐Visible Light Driven Photocatalytic Activities of BiOF Nanoparticles through Simultaneously Exploiting Doping and Upconversion Strategy

A dual-ratiometric optical thermometry based on Sr₂LaF₇:Er³⁺ crystal-implanted pliable fibers

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Optical thermometry based on up-conversion luminescence behavior in BaGdF5:Er3+ glass ceramics

Cited by 22 publications

References 37 publications

Simultaneous Yb3+-Induced Phase Transition and Sensitized Luminescence in Er3+-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Simultaneous Yb3+-Induced Phase Transition and Sensitized Luminescence in Er3+-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Facile Realization of Boosted Near‐Infrared‐Visible Light Driven Photocatalytic Activities of BiOF Nanoparticles through Simultaneously Exploiting Doping and Upconversion Strategy

A dual-ratiometric optical thermometry based on Sr2LaF7:Er3+ crystal-implanted pliable fibers

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Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

A dual-ratiometric optical thermometry based on Sr₂LaF₇:Er³⁺ crystal-implanted pliable fibers