Color-tunable hypersensitive temperature sensor based on metal organic framework doped with Eu3+ and Dy3+ via phonon-assisted energy transfer

Zhang, Mingze; Lin, Lin; Wang, Zhezhe; Yang, Yuanming; Ma, Wenjun; Cai, Jieyi; Lü, Ping; Jia, Siyi; Zhang, Zhiqiang

doi:10.1016/j.jre.2022.09.022

Cited by 13 publications

(5 citation statements)

References 49 publications

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“…The thermal quenching behaviors of LC 0.75 M 0.25 GO and LC 0.75 M 0.25 SO samples are shown in Figure S15 and Figure G, respectively. Both green and red emissions are under the same excitation, while the red emission decreases faster than the green emission as temperatures increase from 298 to 473 K. The fluorescence intensity ratio (FIR) variation, absolute sensitivity S a , and relative sensitivity S r of two different emissions are shown in Figure H,I and Figure S15B,C, and the detailed calculation and results are described in Supplementary Note 3. , The maximum values of S r of LC 0.75 M 0.25 GO and LC 0.75 M 0.25 SO are determined to be 2.953 and 1.498% K –1 at 298 K, respectively. The relatively high S r values indicate that the phosphors have potential applications in optical thermometry.…”

Section: Results and Discussionmentioning

confidence: 92%

Mn–Mn Magnetic Coupling Interaction-Induced Red Emission in a Tetra-Coordinated Lattice

Wang,

Wei,

Qiu

et al. 2024

Chem. Mater.

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Strong magnetic coupling interactions originating from a short Mn−Mn distance in some heavy Mn 2+ -doped matrices have important effects on luminescence of single Mn 2+ ions and close-knit Mn 2+ −Mn 2+ pairs. However, the intrinsic mechanism of controlling spectral regulation remains elusive since the underlying relationship among Mn−Mn distances, magnetic coupling interactions, and optical properties is unclear. Herein, we create an unusual red emission (620 nm) of Mn 2+ in a typical tetracoordinated lattice of Li 2 CdGeO 4 by simply enhancing the Mn 2+doped level in addition to regular green emission (528 nm). Although the dual emission peaks occupy the same tetracoordinated crystallographic lattice of CdO 4 , different temperature-dependent emission behaviors are observed, which expands a possibility in optical thermometry sensors. Detailed Mn−Mn distances are calculated via Rietveld refinement analysis, and their effects on the Mn−Mn coupling interactions are evaluated. Furthermore, the Mn−Mn coupling interaction types are identified through electron spin resonance and magnetic measurements. The continuously decreasing distances between Mn 2+ ions strengthen the dipole−dipole coupling effect, resulting in the atypical red emission in a tetra-coordinated lattice environment. These findings elucidate the spectral regulation mechanism from the perspective of magnetic coupling interactions, providing a new pathway to regulate Mn 2+ -related emission.

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Section: Results and Discussionmentioning

confidence: 92%

Mn–Mn Magnetic Coupling Interaction-Induced Red Emission in a Tetra-Coordinated Lattice

Wang,

Wei,

Qiu

et al. 2024

Chem. Mater.

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“…The temperature sensitivity of (DA) 2 PbBr 4 :0.15%Mn 2+ for optical thermometry was evaluated using the luminescent performance of (DA) 2 PbBr 4 :0.15%Mn 2+ perovskite and the Struck and Fonger theory. The relationship between temperature and the emission peak intensity of host ( I host ) and Mn 2+ ( I Mn ) is expressed as shown in Figures b and S20: FIR = I Mn I host = A exp ( − Δ Ε / k normalB T ) + B where A and B are related proportional parameter, Δ E is the energy gap between the two coupled states, k B is the Boltzmann constant, and T is the absolute temperature. Additionally, the absolute sensitivity S a and relative sensitivity S r can be described by the following equations: S a = d FIR d T = C exp ( − Δ Ε k normalB T ) × normalΔ normalΕ k B T 2 S r = 100 % × | 1 FIR d FIR d T | = 100 % × C exp ( − Δ Ε / k normalB T ) D + C exp ( − Δ Ε / k normalB T ...…”

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Two-Dimensional Hybrid Perovskite with High-Sensitivity Optical Thermometry Sensors

Guan,

Hao,

Qiu

et al. 2024

Inorg. Chem.

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Optical thermometry has gained significant attention due to its remarkable sensitivity and noninvasive, rapid response to temperature changes. However, achieving both high absolute and relative temperature sensitivity in two-dimensional perovskites presents a substantial challenge. Here, we propose a novel approach to address this issue by designing and synthesizing a new narrowband blue light-emitting two-dimensional perovskite named (C 8 H 12 NO 2 ) 2 PbBr 4 using a straightforward solution-based method. Under excitation of nearultraviolet light, (C 8 H 12 NO 2 ) 2 PbBr 4 shows an ultranarrow emission band with the full width at half-maximum (FWHM) of only 19 nm. Furthermore, its luminescence property can be efficiently tuned by incorporating energy transfer from host excitons to Mn 2+ . This energy transfer leads to dual emission, encompassing both blue and orange emissions, with an impressive energy transfer efficiency of 38.3%. Additionally, we investigated the temperature-dependent fluorescence intensity ratio between blue emission of (C 8 H 12 NO 2 ) 2 PbBr 4 and orange emission of Mn 2+ . Remarkably, (C 8 H 12 NO 2 ) 2 PbBr 4 :Mn 2+ exhibited maximum absolute sensitivity and relative sensitivity values of 0.055 K −1 and 3.207% K −1 , respectively, within the temperature range of 80−360 K. This work highlights the potential of (C 8 H 12 NO 2 ) 2 PbBr 4 :Mn 2+ as a promising candidate for optical thermometry sensor application. Moreover, our findings provide valuable insights into the design of narrow-band blue light-emitting perovskites, enabling the achievement of single-component dual emission in optical thermometry sensors.

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“…29,39 Meanwhile, to further enhance the security factor of the texture anticounterfeiting code, Ln-MOFs are fully considered due to their unique optical properties. 40,41 N-heterocyclic carboxylic ligands have multiple N and O sites for coordination, which facilitates the formation of MOFs with diverse structures and high stability. 23,42 In addition, the rigid structure of an organic ligand can decrease the vibrational relaxation of molecules, reduce energy consumption, enhance light absorption and energy conversion, and facilitate the construction of luminescent efficient MOFs.…”

Section: Introductionmentioning

confidence: 99%

“…29,39 Meanwhile, to further enhance the security factor of the texture anti-counterfeiting code, Ln-MOFs are fully considered due to their unique optical properties. 40,41…”

Section: Introductionmentioning

confidence: 99%

Robust lanthanide MOFs as multifunctional luminescent sensors for intelligent visualization monitoring of MEAA and texture code anti-counterfeiting applications

Yang,

Wang

2024

J. Mater. Chem. C

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Color-tunable hypersensitive temperature sensor based on metal organic framework doped with Eu3+ and Dy3+ via phonon-assisted energy transfer

Cited by 13 publications

References 49 publications

Mn–Mn Magnetic Coupling Interaction-Induced Red Emission in a Tetra-Coordinated Lattice

Mn–Mn Magnetic Coupling Interaction-Induced Red Emission in a Tetra-Coordinated Lattice

Two-Dimensional Hybrid Perovskite with High-Sensitivity Optical Thermometry Sensors

Robust lanthanide MOFs as multifunctional luminescent sensors for intelligent visualization monitoring of MEAA and texture code anti-counterfeiting applications

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