Emerging 0D Hybrid Metal Halide Luminescent Glasses

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 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.

Language: Английский

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Reconfigurable Glass Scintillation Screen for Conformal X‐Ray Imaging of Shape‐Changeable Objects

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Abstract As the kernel component of X‐ray imaging systems, mainstream flat‐panel detectors suffer from image distortion and blurring when applied to irregular shaped objects, because non‐conformal collocation between detector object. Herein, by taking advantage robust glass‐forming capability versatile processability (TPT) 2 MnBr 4 (TPT = propyltriphenylphosphonium) scintillator, reconfigurable scintillation screen for conformal is explored. Compared flexible polymer screens doped with micro‐/nanoparticles, melt‐casted large‐area (20 × 20 cm ) are homogeneous immune light scattering, thus manifesting optical transmittance above 80% in 525−800 nm range high spatial resolution 25.5 lp mm −1 . More impressively, can be reconfigured shape near its glass transition temperature, realizing continuous conformance or changeable objects. Exemplified a flexed elbow joint circuit variational shapes, demonstrate superiorities both clarity (15 versus 3 imaging) reduction radiation dosage. That, plus scalable fabrication process cost‐effective raw materials, will promise great potential customized medical diagnostics industrial inspection.

Language: Английский

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

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 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.

Language: Английский

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In Situ Synthesis of Highly Emissive Manganese Halides with Modified Bisphosphonium Cations toward Information Encryption

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Multisite modulation for organic-inorganic hybrid metal halides (OIMHs) plays an important role in the optimization of their photophysical performance. Herein, we proposed organic cation modification strategy on phosphorus sites based 1,2-Bis(diphenylphosphino)ethane (DPPE) by a simple one-pot solvothermal method. Three zero-dimensional (0D) manganese-based OIMHs, two novel MdppeMnCl4·H2O and EdppeMnCl4, as well byproduct [Mn(dppeO2)3][MnCl4] were obtained (Mdppe = methyl-coordinated with DPPE; Edppe ethyl-coordinated dppeO2 is oxidation DPPE). All samples possess four-coordinated [MnCl4]2- polyhedron, while contains another six-coordinated [Mn(dppeO2)3]2+ complex. According to relevant optical measurements, EdppeMnCl4 both show bright green emissions photoluminescence quantum yields 55.66% 80.42%, respectively. By contrast, shows orange emission that confirmed be associated Mn2+ ions temperature-dependent PL spectra. Based good stability solution processability luminescent ink was developed potential application display information encryption fields. The unique this work opens up ways designing developing OIMHs extends prospects halides.

Language: Английский

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Melt‐Processing Enabled Flexible Metal Halide‐Nylon Luminescent Films with Enhanced Optical Transmission for Curved X‐Ray Imaging

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract Organic–inorganic hybrid metal halides are emerging as a class of functional materials that combine attractive photophysical properties with great processability. Their modular chemical structures allow for melt processing through crystal‐melt transitions. Herein, the study reports synthesis (Bzmim) 2 MnX 4 (Bzmim = 1‐benzyl‐3‐methylimidazolium, X Cl, Br, I) single crystals low melting temperatures ranging from 130 to 160 °C. Among them, MnBr exhibits superior luminescence performance photoluminescence quantum yield 78.6% and light 34 900 photons MeV −1 , making it act promising scintillator. Interestingly, leveraging fluidity porous structure nylon film, transparent crystalline ‐Nylon composite film is fabricated by melt‐infiltration process. Compared has an increased transmittance ≈20% >60%. It can be attributed uniform crystallization in pores which suppresses severe crosstalk caused large refractive index difference at nylon‐air interface. The melt‐processable spatial resolution 16 line pairs per millimeter practical X‐ray imaging, well applications curved imaging due its flexibility.

Language: Английский

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Guest-Molecule-Induced Glass-Crystal Transition in Organic–Inorganic Hybrid Antimony Halides

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 18, 2025

The glassy state of inorganic-organic hybrid metal halides combines their excellent optoelectronic properties with the outstanding processability glass, showcasing unique application potential in solar devices, display technologies, and plastic electronics. Herein, by tailoring organic cation from N-phenylpiperazine to dimethylamine gradually, four types zero-dimensional antimony are obtained various optical thermal properties. guest water molecules crystal (N-phenylpiperazine)2SbCl6·Cl·5H2O lead largest distortion Sb-halogen unit, resulting red emission different yellow other compounds. More importantly, molecule-induced hydrogen-bond network would prolong relaxation time into an equilibrium state, formation state. This is previous strategy adopting large cations for glass transition. Through rheological studies, we shape initial understanding underlying kinetics halide glass. work provides a simpler more convenient approach developing superior processing performance.

Language: 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, Journal Year: 2025, Volume and Issue: unknown

Published: April 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.

Language: Английский

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Cationic Substituent Engineering to Enhance Glassy Stability of Manganese Halide Scintillators for Advanced 3D X‐ray Reconstruction

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Abstract Organic–inorganic hybrid manganese(II) halide glasses exhibit advantages such as exceptional optical transparency, straightforward preparation processes, and potential for large‐scale production. However, the crystallization phenomenon easily occurring in this glass material can induce a marked reduction which significantly compromises its X‐ray imaging performance. Herein, cationic substituent regulation strategy is developed to improve glassy stability of halides. By replacing phenyl group Ph‐Mn cation with methylcyclohexyl substituent, novel MCy‐Mn successfully synthesized. Such substitution effectively weaken both cation–anion interactions π – stacking within lattice, resulting remarkable melting point (T m ). Moreover, inherent rigid structure also confers an elevated transition temperature g Consequently, resultant crystal demonstrates high T /T ratio 0.82. Besides, fabricated scintillation exhibits spatial resolution 19.3 lp mm −1 has achieved 3D reconstruction. As anticipated, outstanding environmental stability, no observed after being exposed atmospheric conditions 30 days. This work provides valuable insights development high‐stability metal glasses.

Language: Английский

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