Highly Efficient Stable Luminescent Radical-Based X-ray Scintillator

Journal of the American Chemical Society, Год журнала: 2023, Номер 145(49), С. 27095 - 27102

Опубликована: Ноя. 28, 2023

Stable luminescent radicals are open-shell emitters with unique doublet emission characteristics. This feature makes stable exhibit widespread application prospects in constructing optical, electrical, and magnetic materials. In this work, a radical-based X-ray scintillator of AuPP-1.0 was prepared, which exhibited high excited luminescence (XEL) efficiency as well excellent stability. A mechanism study showed that the heavy atom Au endowed it effective absorption X-rays, characteristics significantly increased its exciton utilization rate radioluminescence process. Moreover, has good processability to fabricate flexible screen for high-quality imaging, whose resolution can reach 20 LP mm-1. work demonstrates is beneficial improving radioluminescence, providing brand-new strategy construction high-performance scintillators.

Язык: Английский

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Nanomaterials for light-mediated therapeutics in deep tissue

Chemical Society Reviews, Год журнала: 2024, Номер 53(6), С. 2898 - 2931

Опубликована: Янв. 1, 2024

Different activation modes, including chemiluminescence, NIR, X-ray and ultrasound, have been employed to trigger specific light-mediated therapeutics, such as photodynamic therapy, photothermal therapy drug delivery.

Язык: Английский

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A Thermo‐Responsive MOFs for X‐Ray Scintillator

Advanced Materials, Год журнала: 2024, Номер 36(32)

Опубликована: Июнь 12, 2024

Abstract Thermo‐responsive smart materials have aroused extensive interest due to the particular significance of temperature sensing. Although various photoluminescent are explored in thermal detection, it is not applicable enough X‐ray radiation environment where accuracy and reliability will be influenced. Here, a strategy proposed by introducing concept radio‐luminescent functional building units (RBUs) construct thermo‐responsive lanthanide metal‐organic frameworks (Ln‐MOFs) scintillators for self‐calibrating thermometry. The rational designs RBUs (including organic ligand Tb 3+ /Eu ) with appropriate energy levels lead high‐performance radio‐luminescence. Ln‐MOFs exhibit perfect linear response X‐ray, presenting low dose rate detection limit (min ≈156.1 nGy air s ‐1 ). Self‐calibrating based on ratiometric XEL intensities achieved good absolute relative sensitivities 6.74 8.1%K , respectively. High light yield (max ≈39000 photons MeV −1 ), imaging spatial resolution ≈18 lp mm irradiation stability (intensity ≈100% at 368 K total up 215 Gy giant color transformation visualization benefit applications, especially situ imaging. Such provides promising way develop novel photonic excellent scintillator performances.

Язык: Английский

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Water-dispersible X-ray scintillators enabling coating and blending with polymer materials for multiple applications

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Март 6, 2024

Abstract Developing X-ray scintillators that are water-dispersible, compatible with polymeric matrices, and processable to flexible substrates is an important challenge. Herein, Tb 3+ -doped Na 5 Lu 9 F 32 introduced as scintillating material steady-state light yields of 15,800 photons MeV −1 , which generated nanocrystals on halloysite nanotubes. The obtained product exhibits good water-dispersibility highly sensitive luminescence X-rays. It deposited onto a polyurethane foam afford composite dose-dependent radioluminescence. Moreover, the dispersed into polymer matrixes in aqueous solution prepare rigid or scintillator screen for imaging. As third example, it incorporated multilayer hydrogels information camouflage multilevel encryption. Encrypted can be recognized only by irradiation, while false read out under UV light. Altogether, we demonstrate water-dispersible promising processing radioluminescent, imaging, encrypting materials.

Язык: Английский

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Cs₂NaGdCl₆:Tb³⁺─A Highly Luminescent Rare-Earth Double Perovskite Scintillator for Low-Dose X-ray Detection and Imaging

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(15), С. 19068 - 19080

Опубликована: Апрель 8, 2024

Rare-earth-based double perovskite (DP) X-ray scintillators have gained significant importance with low detection limits in medical imaging and radiation owing to their high light yield (LY) remarkable spatial resolution. Herein, we report the synthesis of 3D crystals, namely, Cs

Язык: Английский

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Multiphase Transformation in Hybrid Copper(I)-Based Halides Enable Improved X-ray Scintillation and Real-Time Imaging

ACS Materials Letters, Год журнала: 2024, Номер 6(4), С. 1542 - 1548

Опубликована: Март 19, 2024

Crystal-glass phase transformation and glass recrystallization in zero-dimensional (0D) hybrid metal halides make them thriving X-ray scintillators with the advantages of large-area fabrication improved performance. Herein, we report three 0D copper(I) composed identical organic cations versatile self-assembly copper-iodide anions find that volumes inorganic groups are related to their lattice energies, which conformationally governed thermodynamics formation through destabilization. A subsequent heating counterparts allows bulk glass-ceramic via recrystallization, exhibiting outstanding scintillation performances (with a light yield 64 000 ph MeV–1 detection limit 72.6 nGy s–1) high stability for real-time imaging (spatial resolution above 20 lp mm–1). This multiphase strategy luminescence halide opens an exploratory way structural design engineering scintillator screens imaging.

Язык: Английский

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Micro/Nano Perovskite Materials for Advanced X-ray Detection and Imaging

ACS Nano, Год журнала: 2024, Номер 18(8), С. 6095 - 6110

Опубликована: Фев. 19, 2024

Halide perovskites have emerged as highly promising materials for ionizing radiation detection due to their exceptional characteristics, including a large mobility-lifetime product, strong stopping power, tunable band gap, and cost-effective crystal growth via solution processes. Semiconductor-type X-ray detectors employing various micro/nano perovskite shown impressive progress in achieving heightened sensitivity lower limits. Here, we present comprehensive review of the applications direct type detection, with focus on requirements assembly device properties advanced detectors. We explore diverse processing techniques optoelectronic considerations applied Additionally, this highlights challenges opportunities detector arrays real-world applications, potentially necessitating further research efforts.

Язык: Английский

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Erbium‐Induced Boost in Self‐Trapped Exciton Emission of Double Perovskites for Highly Sensitive Multimodal and Multiplexed Optical Thermography

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Апрель 16, 2024

Abstract Self‐trapped excitons (STEs) of lead‐free perovskites have aroused tremendous interest in remote optical thermometry due to strong exciton–phonon coupling and large Stokes shifts. Herein, a bright multimodal multiplexed thermometer is constructed with high sensitivity ( S r ) self‐calibrating ability based on Cs 2 NaInCl 6 :Er 3+ double perovskite, allowing for fast simplified reading via mobile devices. Intriguingly, Er doping not only shows the characteristic green emissions but also introduces nanoelectronic domains through new localized valance band maximum breaks symmetry In site, which facilitates generation more STEs. The temperature‐sensitive blue emission STEs temperature‐insensitive endow including time‐resolved ratiometric readout schemes 3.8% K −1 , where an upconversion primary serves as reference calibrate other modes. Meanwhile, designed thermometers show robust photostability, repeatability, structural stability long‐time working storage. addition, remarkable thermochromic phenomenon from enables quick color‐multiplexed thermography smartphone, utilized capture real‐time 2D thermal imaging microelectronic This work demonstrates great potential perovskite low‐cost portable thermometry.

Язык: Английский

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Emerging 0D Hybrid Metal Halide Luminescent Glasses

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

0D hybrid metal halide (HMH) luminescent glasses have garnered significant attentions for its chemical diversity in optoelectronic applications and it also retains the skeleton connectivity coordination mode of crystalline counterparts while exhibiting various physics/chemistry characteristics distinct from states. However, understanding glass-forming ability specific structural origins underpinning properties HMH remains elusive. In this review, is started solid-liquid phase transition thermodynamic analysis HMHs formed through melt-quenching, summarize current compounds capable stably forming glassy phases via design. The characterization methods are further discussed highlight exceptional transparency, properties, glass crystallization behaviors. Moreover, application prospects demonstrated by these been presented accordingly X-ray detection imaging, anti-counterfeiting, information encryption. Finally, perspective offered into future development emerging family their applications.

Язык: Английский

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Screening High-Performance Hybrid Halides Scintillators: A Comprehensive Analysis and Prediction Model

Chemistry of Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 17, 2025

Machine learning models were applied to predict the scintillation performances of organic–inorganic hybrid metal halides (OIMHs), focusing on their photoluminescent quantum yield (PLQY). Random Forest and Decision Tree algorithms identified most critical structural parameter organic molecules influencing M···M distance between ions correlated PLQY value, with an optimal approximately 8 Å correlating enhanced luminescence efficiency. This prediction was experimentally validated through synthesis several OIMH compounds, demonstrating strong agreement predicted measured values. The machine approach not only enabled screening efficient compounds but also deepened understanding how factors, such as structure molecules, govern properties. These findings underscore potential in accelerating development next-generation luminescent materials improved performance, offering a powerful tool for future material design optimization.

Язык: Английский

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