Effects of doping concentration and excitation density on optical thermometric behaviors in Ho3+/Yb3+ co-doped ZrO2 upconversion nanocrystals

Li, Mengchao; Xie, Ting-Xian; Tu, Xubin; Xu, Jinsheng; Lei, Ruoshan; Zhao, Shilong; Xu, Shiqing

doi:10.1016/j.optmat.2019.109478

Cited by 8 publications

(3 citation statements)

References 32 publications

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“…Figure b shows the UC spectra of the Yb/Ho-codoped ZrO 2 matrix under 980 nm excitation, which is composed of green and red bands. Similar to the Yb/Er system discussed earlier, the red-to-green ratio is different from other systems. , This difference can be attributed to the energy back transfer from Ho 3+ to Yb 3+ ions . In addition, Figure c–f shows the UC emission spectra of ZrO 2 :Yb/Tm, ZrO 2 :Yb/Tb, ZrO 2 :Yb/Pr, and ZrO 2 :Yb/Eu under the same laser power and measurement conditions.…”

Section: Resultsmentioning

confidence: 51%

“…To determine the sensing sensitivity, it is necessary to obtain the relative sensitivity ( S r ) by deriving the FIR expression from eq . S r = 1 normalF normalI normalR × | d normalF normalI normalR d T | It is found that the value of S r gradually increases with an increase of temperature from 310 to 382 K, where the maximal S r of about 0.47% K –1 is achieved, and then decreases on further increasing the temperature. Li et al have reported that the ZrO 2 :Yb/Ho nanocrystals had the maximum S r ∼ 0.4% at 340 K . Compared with this work, the ZrO 2 :Yb/Ho phosphors prepared with the MSS method have excellent sensitivity for temperature sensor application.…”

Section: Resultsmentioning

confidence: 53%

“…38,39 This difference can be attributed to the energy back transfer from Ho 3+ to Yb 3+ ions. 40 In addition, Figure 3c− f shows the UC emission spectra of ZrO 2 :Yb/Tm, ZrO 2 :Yb/ Tb, ZrO 2 :Yb/Pr, and ZrO 2 :Yb/Eu under the same laser power and measurement conditions. These results reveal that the emission spectra of the different activators are distributed in different positions.…”

Section: Resultsmentioning

confidence: 99%

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Molten Salt Synthesis and Upconversion of Cubic ZrO₂ Submicron Phosphors for Temperature Sensor and Anticounterfeit Applications

Lu,

Ma,

Zhu

et al. 2023

Crystal Growth & Design

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Zirconia (ZrO 2 ) is an excellent host material in the luminescent materials field because of its low phonon energy. Nevertheless, owing to a very high melting point of 2715 °C, preparation of cubic ZrO 2 by the solid-state reaction must be done at high temperatures (>1400 °C). Here, we report a molten salt method (MSS) process to obtain rare earth-doped cubic ZrO 2 phosphors in an air environment at 1200 °C, which has a relatively low preparation temperature with submicrometer size and fine control over the crystal morphology. Consequently, we successfully synthesized upconverting multicolor ZrO 2 submicron phosphors by tuning the activators with a Yb 3+ sensitizer under 980 nm excitation. Additionally, the submicron phosphors exhibit multifunctional applications, notably in temperature sensor and anticounterfeiting fields.

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Section: Resultsmentioning

confidence: 51%

Section: Resultsmentioning

confidence: 53%

Section: Resultsmentioning

confidence: 99%

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Molten Salt Synthesis and Upconversion of Cubic ZrO₂ Submicron Phosphors for Temperature Sensor and Anticounterfeit Applications

Lu,

Ma,

Zhu

et al. 2023

Crystal Growth & Design

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Nonlinear Optical Thermometry—A Novel Temperature Sensing Strategy via Second Harmonic Generation (SHG) and Upconversion Luminescence in BaTiO₃:Ho³⁺,Yb³⁺ Perovskite

Zheng

Runowski

Martı́n

et al. 2021

Advanced Optical Materials

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Nonlinear optical spectroscopy may be a powerful tool for sensing of various intrinsic properties of materials and different state functions of the system. This is due to the strong dependence of nonlinear phenomena on numerous physicochemical factors. The feasibility of simultaneously employing the second harmonic generation (SHG) and upconversion luminescence (UCL) processes in BaTiO3:Ho3+,Yb3+ for optical temperature sensing is demonstrated for the first time. Under 976 nm laser excitation, the evolution of the SHG and UCL band intensity ratio is correlated with temperature and calibrated within the temperature range of 25–305 °C. The band intensity ratio between SHG and UCL exhibits a sigmoidal dependence on temperature, and, hence, it can allow the detection of phase transitions from non‐centrosymmetric to centrosymmetric systems, and vice versa. Most importantly, from the perspective of optical temperature sensing, this work provides a novel and effective strategy for nonlinear optical thermometry, with high sensitivity of up to 2.78% °C–1.

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Strong green up-conversion luminescence and optical thermometry of Ho3+/Yb3+ Co-doped AlN submicron towers

Wang,

Gao,

Zheng

et al. 2024

Ceramics International

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Effects of doping concentration and excitation density on optical thermometric behaviors in Ho3+/Yb3+ co-doped ZrO2 upconversion nanocrystals

Cited by 8 publications

References 32 publications

Molten Salt Synthesis and Upconversion of Cubic ZrO₂ Submicron Phosphors for Temperature Sensor and Anticounterfeit Applications

Molten Salt Synthesis and Upconversion of Cubic ZrO₂ Submicron Phosphors for Temperature Sensor and Anticounterfeit Applications

Nonlinear Optical Thermometry—A Novel Temperature Sensing Strategy via Second Harmonic Generation (SHG) and Upconversion Luminescence in BaTiO₃:Ho³⁺,Yb³⁺ Perovskite

Strong green up-conversion luminescence and optical thermometry of Ho3+/Yb3+ Co-doped AlN submicron towers

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Effects of doping concentration and excitation density on optical thermometric behaviors in Ho3+/Yb3+ co-doped ZrO2 upconversion nanocrystals

Cited by 8 publications

References 32 publications

Molten Salt Synthesis and Upconversion of Cubic ZrO2 Submicron Phosphors for Temperature Sensor and Anticounterfeit Applications

Molten Salt Synthesis and Upconversion of Cubic ZrO2 Submicron Phosphors for Temperature Sensor and Anticounterfeit Applications

Nonlinear Optical Thermometry—A Novel Temperature Sensing Strategy via Second Harmonic Generation (SHG) and Upconversion Luminescence in BaTiO3:Ho3+,Yb3+ Perovskite

Strong green up-conversion luminescence and optical thermometry of Ho3+/Yb3+ Co-doped AlN submicron towers

Contact Info

Product

Resources

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Molten Salt Synthesis and Upconversion of Cubic ZrO₂ Submicron Phosphors for Temperature Sensor and Anticounterfeit Applications

Molten Salt Synthesis and Upconversion of Cubic ZrO₂ Submicron Phosphors for Temperature Sensor and Anticounterfeit Applications

Nonlinear Optical Thermometry—A Novel Temperature Sensing Strategy via Second Harmonic Generation (SHG) and Upconversion Luminescence in BaTiO₃:Ho³⁺,Yb³⁺ Perovskite