Color-tunable upconversion luminescence and temperature sensing behavior of Tm3+/Yb3+ codoped Y2Ti2O7 phosphors

Tu, Xubin; Xu, Jinsheng; Li, Mengchao; Xie, Ting-Xian; Lei, Ruoshan; Wang, Huanping; Xu, Shiqing

doi:10.1016/j.materresbull.2018.12.008

Cited by 37 publications

(12 citation statements)

References 39 publications

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“…Specifically, the maximal S r(523/477) value reaches 0.98% K –1 at 256 K, and the maximal S r(707/650) value is as high as 1.35% K –1 at 437 K. Impressively, the temperature sensitivities for the present dual-phase glass are comparable or even superior to the previously reported ones (Table S3). ,− Therefore, considering the wide operating temperature range and high sensitivity, the strategy based on the emissions from PNCs and Ln 3+ ion-codoped dual-phase glass is prospective to realize broad/accurate temperature detection. Herein, we designed a real-time temperature-measuring system (Figure ) consisting of a spectroradiometer (SpectraScan PR670) and a temperature-controlling stage (Linkam THMS600).…”

Section: Resultsmentioning

confidence: 99%

Dual-Modal Photon Upconverting and Downshifting Emissions from Ultra-stable CsPbBr₃ Perovskite Nanocrystals Triggered by Co-Growth of Tm:NaYbF₄ Nanocrystals in Glass

Yang

et al. 2020

ACS Appl. Mater. Interfaces

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This work reports a novel dual-phase glass containing Tm:NaYbF4 upconverting nanocrystals (UCNCs) and CsPbBr3 perovskite nanocrystals (PNCs). The advantages of this kind of nanocomposite are that it provides a solid inorganic glass host for the in situ co-growth of UCNCs and PNCs, and protects PNCs against decomposition affected by the external environment. Tm:NaYbF4 NC-sensitized stable CsPbBr3 PNCs photon UC emission in PNCs is achieved under the irradiation of a 980 nm near-infrared (NIR) laser, and the mechanism is evidenced to be radiative energy transfer (ET) from Tm3+: 1G4 state to PNCs rather than nonradiative Förster resonance ET. Consequently, the decay lifetime of exciton recombination is remarkably lengthened from intrinsic nanoseconds to milliseconds since carriers in PNCs are fed from the long-lifetime Tm3+ intermediate state. Under the simultaneous excitation of the ultraviolet (UV) light and NIR laser, dual-modal photon UC and downshifting (DS) emissions from ultra-stable CsPbBr3 PNCs in the glass are observed, and the combined UC/DS emitting color can be easily altered by modifying the pumping light power. In addition, UC exciton recombination and Tm3+ 4f–4f transitions are found to be highly temperature sensitive. All these unique emissive features enable the practical applications of the developed dual-phase glass in advanced anti-counterfeit and accurate temperature detection.

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Section: Resultsmentioning

confidence: 99%

Dual-Modal Photon Upconverting and Downshifting Emissions from Ultra-stable CsPbBr₃ Perovskite Nanocrystals Triggered by Co-Growth of Tm:NaYbF₄ Nanocrystals in Glass

Yang

et al. 2020

ACS Appl. Mater. Interfaces

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“…Such kind of observations for Tm 3+ /Yb 3+ doped systems are also reported by various researchers. 26,41,42…”

Section: Resultsmentioning

confidence: 99%

Comparative studies of upconversion luminescence and optical temperature sensing in Tm³⁺/Yb³⁺ codoped LaVO₄ and GdVO₄ phosphors

Upadhyay

Kumar

2023

RSC Adv.

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“…Due to the suitable energy gap, the 3 F 2,3 and 3 H 4 states of Tm 3+ can form thermally coupled states, while the 1 D 4 and 3 H 4 states of Tm 3+ can form nonthermally coupled states. In previous reports, the thermally coupled levels ( 3 F 2,3 and 3 H 4 ) and nonthermally coupled levels ( 1 D 4 and 3 H 4 ) of Tm 3+ ions adhere to the Boltzmann distribution and can be expressed as the following formula FIR 1 and FIR 2 : [60,61]…”

Section: Temperature Sensing Properties Of Ngf-t 04 Y 6 @Tio 2 /Pan F...mentioning

confidence: 99%

Functional Materials with Wide‐Spectral‐Responsive Photocatalytic Activity and Real‐Time Temperature Feedback: The Electrospun Fibers Embedded with NaGdF₄‐Tm‐Yb@TiO₂ Nanocrystals

Gao

Wang

et al. 2022

Adv Materials Inter

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In this work, combining the advantages of upconversion materials, nanofibers, and TiO2 semiconductors, the composite fibers embedded with NaGdF4: Tm3+, Yb3+@TiO2 nanocrystals (NGF‐TY@TiO2 NCs) are prepared as wide‐spectral (UV‐NIR) response photocatalysts and temperature sensing materials. Based on the FIR technique, both the thermally (3F2,3 and 3H4) and nonthermally (1G4 and 3F2,3) coupled levels of Tm3+ are confirmed to be applicable as temperature probes for real‐time monitoring and feedback of the working temperature of the catalytic degradation process, and the maximum relative sensitivity values of SR1 and SR2 are as high as 2.760%K−1 and 3.019%K−1 at 304 K, respectively. Under 977 nm laser excitation, the energy migration from NGF‐T0.4Y6 to TiO2 is demonstrated to a fluorescence resonance energy transfer process. The degradation ratio of rhodamine B (RhB) is 19.3% in the presence of NGF‐T0.4Y6@TiO2/PAN fibers and the degradation constant K reaches 0.00117 min−1 after 3 h irradiating from Xe lamp with a UV cutoff filter. Accordingly, this study suggests a new perspective to utilize the NIR energy of sunlight for photocatalytic application based on TiO2, and the addition of dual temperature feedback provides a reliable reference for the development of safer and more efficient catalytic materials.

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Color-tunable upconversion luminescence and temperature sensing behavior of Tm3+/Yb3+ codoped Y2Ti2O7 phosphors

Cited by 37 publications

References 39 publications

Dual-Modal Photon Upconverting and Downshifting Emissions from Ultra-stable CsPbBr₃ Perovskite Nanocrystals Triggered by Co-Growth of Tm:NaYbF₄ Nanocrystals in Glass

Dual-Modal Photon Upconverting and Downshifting Emissions from Ultra-stable CsPbBr₃ Perovskite Nanocrystals Triggered by Co-Growth of Tm:NaYbF₄ Nanocrystals in Glass

Comparative studies of upconversion luminescence and optical temperature sensing in Tm³⁺/Yb³⁺ codoped LaVO₄ and GdVO₄ phosphors

Functional Materials with Wide‐Spectral‐Responsive Photocatalytic Activity and Real‐Time Temperature Feedback: The Electrospun Fibers Embedded with NaGdF₄‐Tm‐Yb@TiO₂ Nanocrystals

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Color-tunable upconversion luminescence and temperature sensing behavior of Tm3+/Yb3+ codoped Y2Ti2O7 phosphors

Cited by 37 publications

References 39 publications

Dual-Modal Photon Upconverting and Downshifting Emissions from Ultra-stable CsPbBr3 Perovskite Nanocrystals Triggered by Co-Growth of Tm:NaYbF4 Nanocrystals in Glass

Dual-Modal Photon Upconverting and Downshifting Emissions from Ultra-stable CsPbBr3 Perovskite Nanocrystals Triggered by Co-Growth of Tm:NaYbF4 Nanocrystals in Glass

Comparative studies of upconversion luminescence and optical temperature sensing in Tm3+/Yb3+ codoped LaVO4 and GdVO4 phosphors

Functional Materials with Wide‐Spectral‐Responsive Photocatalytic Activity and Real‐Time Temperature Feedback: The Electrospun Fibers Embedded with NaGdF4‐Tm‐Yb@TiO2 Nanocrystals

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Dual-Modal Photon Upconverting and Downshifting Emissions from Ultra-stable CsPbBr₃ Perovskite Nanocrystals Triggered by Co-Growth of Tm:NaYbF₄ Nanocrystals in Glass

Dual-Modal Photon Upconverting and Downshifting Emissions from Ultra-stable CsPbBr₃ Perovskite Nanocrystals Triggered by Co-Growth of Tm:NaYbF₄ Nanocrystals in Glass

Comparative studies of upconversion luminescence and optical temperature sensing in Tm³⁺/Yb³⁺ codoped LaVO₄ and GdVO₄ phosphors

Functional Materials with Wide‐Spectral‐Responsive Photocatalytic Activity and Real‐Time Temperature Feedback: The Electrospun Fibers Embedded with NaGdF₄‐Tm‐Yb@TiO₂ Nanocrystals