Up-conversion luminescence of LiTaO3:Er3+ phosphors for optical thermometry

Yang, Xin; Lin, Shaopeng; Ma, Decai; Long, Siwei; Zhu, Yunzhong; Li, Huashan; Wang, Biao

doi:10.1016/j.ceramint.2019.09.088

Cited by 22 publications

(6 citation statements)

References 40 publications

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“…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: 88%

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: 88%

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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“…46 In general, the investigation of temperature-dependent PL for optical thermometry is focused on the UC PL of Er 3+ ions under a NIR laser pump. 47 Er 3+ ions in the LiTaO 3 host also show excellent down-conversion photoluminescence capacity with the help of Bi 3+ dopants, indicating that the down-conversion emission might be likewise affected by thermal stimulus, reflected in the fluorescence intensity ratio (FIR). 35 Fig.…”

Section: Resultsmentioning

confidence: 99%

Opto-mechano-thermo-sensitive allochroic luminescence based on coupled dual activators in tantalate towards multidimensional stimulus sensing

Zhao

Zhang

et al. 2023

Inorg. Chem. Front.

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“…Currently, the transition luminescence corresponding to the 2 H 11/2 and 4 S 3/2 thermal coupling energy levels as the main luminescence sources of Er 3+ ions has become a principal choice by the FIR technology since a high intensity of a green thermal fluorescence signal can be more easily captured by the detection equipment and more practical. − However, the narrow energy level interval hinders the improvement of relative sensitivity. In order to improve the overall sensitivity, the 4 G 11/2 and 2 H 9/2 thermal coupling energy levels with high dependence on excitation power and high sensitivity are utilized as an auxiliary temperature parameter to monitor accidental errors.…”

Section: Resultsmentioning

confidence: 99%

Dual-Feedbacked Temperature Sensing of Er³⁺ in Fusiform-Polycrystalline-Implanted BaYF₅/PAN Electrospun Fibers

Ren

Pun

et al. 2021

J. Phys. Chem. C

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Ba(Y1–x–y Er x Yb y )F5/polyacrylonitrile (BYF-EY/PAN) composite fibers have been prepared by adopting the electrospinning technology, and fusiform-polycrystalline-implanted fibers can be fused with a thermal response function and excellent flexibility. Upconversion emission displays quadratic and cubical dependence of the photoluminescence intensity on the pumping power, confirming two-photon- and three-photon-induced processes, respectively. Among them, the intense green emission ascribed to 2H11/2/4S3/2 → 4I15/2 transitions is appointed as the main indicator of noncontact temperature sensing, and the faintish blue-violet emission originated from 4G11/2/2H9/2 → 4I15/2 transitions can be served as an auxiliary monitoring channel to calibrate deviation, thereby improving operational accuracy. At a relatively moderate working temperature (363 K), the absolute sensitivity and relative sensitivity of composite fibers reach as high as 0.455 and 0.832% K–1 for main sensing and 0.391 and 2.176% K–1 for auxiliary sensing, respectively. The developed BYF-EY/PAN fiber with outstanding dual-feedbacked temperature sensing is promising to act as flexible sensing elements in fabrics and biomedical devices.

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Up-conversion luminescence of LiTaO3:Er3+ phosphors for optical thermometry

Cited by 22 publications

References 40 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

Opto-mechano-thermo-sensitive allochroic luminescence based on coupled dual activators in tantalate towards multidimensional stimulus sensing

Dual-Feedbacked Temperature Sensing of Er³⁺ in Fusiform-Polycrystalline-Implanted BaYF₅/PAN Electrospun Fibers

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Up-conversion luminescence of LiTaO3:Er3+ phosphors for optical thermometry

Cited by 22 publications

References 40 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

Opto-mechano-thermo-sensitive allochroic luminescence based on coupled dual activators in tantalate towards multidimensional stimulus sensing

Dual-Feedbacked Temperature Sensing of Er3+ in Fusiform-Polycrystalline-Implanted BaYF5/PAN Electrospun 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

Dual-Feedbacked Temperature Sensing of Er³⁺ in Fusiform-Polycrystalline-Implanted BaYF₅/PAN Electrospun Fibers