Tailoring the Emission Properties of Cs₂NaLuCl₆ for Anti‐Counterfeiting, X‐Ray Scintillation, and Night Vision Applications

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 8, 2025

Abstract The ever‐increasing counterfeiting issues have triggered a research upsurge in multi‐modal fluorescence anti‐counterfeiting materials. All inorganic metal halide double perovskites possess the advantages of facile preparation procedures and high thermal stability, which also provide suitable doping sites to regulate emission behavior highlight potential for serving as Herein, series Sb 3+ , Er Yb solely or codoped Cs 2 NaLuCl 6 are successfully prepared, optical properties dependent on ratio lanthanide ions (Ln ). Notably, due participation energy‐transfer cross‐relaxation processes, tri‐doped (0.3%Sb ‐20%Er ‐50%Yb ‐Cs ) shows luminescence responses excitation sources with different photon energies, is employed construct patterns by combining . Besides behavior, NIR from can be used night‐vision device. Remarkably, 20%Er ‐doped an excellent light yield 30767 photons MeV −1 low limit detection (LoD) 108 nGy s highlighting X‐ray imaging. This work provides rational route design multi‐functional materials that anti‐counterfeiting, night vision,

Язык: Английский

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New Transparent Rare‐Earth‐Based Hybrid Glasses: Synthesis, Luminescence, and X‐Ray Imaging Application

Aggregate, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

ABSTRACT Metal–organic hybrid glasses have recently emerged as the fourth member in glass family due to its versatile hosting ability various functional ions. However, no luminescent ions been successfully introduced into date. Here, we reported a benign desolvation method, whereby rare‐earth‐based (RE(NO 3 ) (C 5 H 2 N 4 glasses) were rapidly formed within 1 h at low temperature down 140°C. Such facile synthesis was applicable full rare‐earth family, including Y, Sc, and lanthanide series. The exhibited not only high transparency of over 88% but also quantum yield up 70%, which demonstrated spatial resolution X‐ray imaging screen. Hydrogen bond played key role maintaining structural integrity organic‐metal framework, turn promoted radiative recombination excited states both singlet triplet organic moiety (4,5‐dicyanoiazole, or DCI). An efficient energy transfer from DCI ions, known antenna effect, probed by steady‐state time‐resolved spectroscopy. Apart glasses, incorporation inert such La, Lu generated transparent enhanced room‐temperature phosphorescence. This work improved toolbox metal–organic provided an ideal matrix for energy‐transfer investigation between linker

Язык: Английский

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Temperature-Adaptive Organic Scintillators for X-ray Radiography

Journal of the American Chemical Society, Год журнала: 2024, Номер unknown

Опубликована: Дек. 16, 2024

Organic phosphorescence or thermally activated delayed fluorescence (TADF) scintillators, while effective in utilizing triplet excitons, are sensitive to temperature changes, which can impact radioluminescence performance. In this study, we have developed a type of temperature-adaptive organic scintillator with and TADF dual emission. These scintillators automatically switch modes enabling efficient from 77 400 K. The highest photoluminescence quantum yield light 83.2% 78,229 ± 562 photons MeV

Язык: Английский

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In Situ Crystallization of CsPbBr₃ Nanocrystals within a Melt-Quenched Glassy Coordination Polymer

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

Lead halide perovskite nanocrystal materials such as CsPbX3 (X = Cl, Br, and I) have triggered an intense research upsurge due to their excellent scintillation performance. Herein, in situ crystallization strategy is developed grow CsPbBr3 nanocrystals (NCs) within a low-melting-point (280 °C) coordination polymer (CP) glass. The viscosity of glass reduced through low-temperature (e.g., 50 thermal treatment, enabling the short-distance migration uniformly dispersed ions (Cs+, Pb2+, Br-) achieve NCs. Benefiting from high transmittance (80% 500-800 nm range) outstanding performance, prepared CsPbBr3@ZnBr2(bIm+DMSO)2 (bIm benzimidazole, DMSO dimethyl sulfoxide) transparent luminescence exhibits X-ray imaging resolution up 25 lp/mm, outperforming many crystalline scintillators. This work would provide idea for development high-resolution screens that can be at low temperatures.

Язык: Английский

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Near-infrared organic scintillators for efficient X-ray imaging via singlet and triplet to doublet energy transfer

Science China Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Язык: Английский

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Two-coordinate copper(I) complexes enable efficient X-ray scintillation and imaging

Science China Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Язык: Английский

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Advances and Challenges in X-ray-Excited Scintillators and Their Biomedical Applications: Current Insights and Future Directions

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

This review explores the pivotal role of scintillators in biomedical applications, with a particular emphasis on their utilization context X-ray excitation. It commences an in-depth analysis two predominant categories scintillators: inorganic and organic, meticulously delineating distinctive properties respective applications. The discourse subsequently advances to explore critical applications X-ray-excited (XESs), underscoring significant advancements medical imaging, radiation detection, dosimetry. Moreover, identifies prevailing challenges limitations deployment these for purposes, thereby establishing robust foundation ongoing research endeavors. outlines potential directions, advocating interdisciplinary collaborations overcome existing barriers. By synthesizing current knowledge identifying areas future investigation, this aims guide researchers enhancing efficacy application science.

Язык: Английский

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Efficient Organic D‐π‐A Scintillators for Temperature‐Adaptive X‐Ray Imaging

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Июнь 4, 2025

Abstract Achieving highly efficient organic scintillators for X‐ray imaging remains a significant challenge, primarily owing to the inherent difficulty in facilitating rapid radiative decays of both singlet and triplet excitons. To address this limitation, novel design strategy is introduced that incorporated fluorine atoms modify π‐bridge D‐π‐A molecules, thereby fine‐tuning their electronic structures photophysical properties. The emitters, namely 1FAT 2FAT, show excellent thermally activated delayed fluorescence (TADF), aggregation‐induced (AIDF), room temperature phosphorescence (RTP) excited by ultraviolet light varying with surrounding environments. Notably, doped PMMA film exhibites intense emission across broad range from 77 363 K, showcasing its adaptability diverse thermal conditions. More importantly, 1FAT@PMMA exhibits radioluminescence performance under excitation low detection limit 62.27 nGy s −1 high spatial resolution over 20 lp mm . This study introduces fundamental developing efficient, temperature‐adaptive scintillators, significantly expanding potential applications flexible, stretchable detectors advanced technologies.

Язык: Английский

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Scalable Fabrication of Lead-Free Metal Halide for Indirect Flat Panel Detector

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Июнь 5, 2025

Metal halides have excellent radioluminescence performance, which makes them suitable for X-ray indirect flat panel detectors (I-FPDs). However, commercialization prospects are still constrained by two issues: 1. Lead toxicity, poses significant health risks to the human body, limits application scenarios of I-FPDs. 2. The fabrication technique restricts production large-area scintillators, making it difficult achieve flat-panel imaging. Therefore, developing lead-free metal and techniques is essential. In this perspective, we summarize several promising halide materials processes, then compare their performance. Additionally, also discussed potential development directions future This systematic review aims contribute advancement radiation detection technologies providing researchers with a thorough understanding current landscape scintillators.

Язык: Английский

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Cuprous-Based Layered Single-Crystalline Scintillators for X-ray Detection and Imaging

Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(43), С. 17587 - 17594

Опубликована: Янв. 1, 2024

A new metal halide single crystal (C 6 H 10 N 2 ) Cu I 3 (PO was demonstrated. The optical and X-ray properties of were fully characterized evaluated, which demonstrated great potential for detection imaging.

Язык: Английский

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