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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Low Optical Loss and Bent Waveguides: Crystals of a One-Dimensional Pt₁Ag₁₄ Nanocluster

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Март 28, 2025

Photoluminescent nanoclusters are promising materials for optical waveguides. However, their photon transmission under mechanical stress is very challenging. Here, we report an low-loss metallic nanocluster crystal, [Pt1Ag14(DPPP)6Cl4](SbF6)2 (DPPP = 1,3-bis(diphenylphosphino) propane), which exhibits stable performance with loss coefficient of 7.15 × 10–4 dB·μm–1─lower than most reported inorganic, organic, and hybrid materials. The Pt1Ag14 crystals maintain excellent stability deformation, difference only 0.15 10–3 dB·μm–1 before after stress. Reasonable molecular design endows robust flexibility, resulting in bending radius being smaller that similar structures. Structural analysis has shown multiple π···π, C–H···π, C–H···F intra- intermolecular interactions originating from the ligands between counterions ensure crystal Metallic low flexibility generated by rational offer candidates fields active waveguides flexible electronic

Язык: Английский

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High‐Resolution X‐Ray Circular Polarization Imaging Enabled by Luminescent Photopolymerized Chiral Metal‐Organic Polymers

Advanced Functional Materials, Год журнала: 2024, Номер 34(51)

Опубликована: Авг. 24, 2024

Abstract Scintillators can convert the ionizing radiation into visible light and are crucial in X/γ‐ray detectors. Commercial detectors often use multiple scintillators with photodetector arrays, where optical crosstalk degrade performance. Chiral scintillators, emitting circularly polarized light, offer a promising solution for regulating direction of propagation to enhance X‐ray detecting merits. Here novel chiral metal‐organic polymers have been developed via photopolymerization, using polymeric monomers 0D Mn(II)‐based organic‐metal halide hybrid achieving luminescence dissymmetry factors ( g lum ) 5.823 × 10 −2 −2.877 . Two such (atpp) 2 MnCl 4 ·0.5H O (MnCl − 1 MnBr (MnBr ), exhibit excellent scintillation rooted tetrahedral [MnX ] 2− crystal field. Compound , heavier bromine atoms, shows superior performance detection limit 0.117 µGy air s −1 compared 0.330 both surpassing medical diagnostic standard 5.50 The polymer film derived from has achieved resolution up 14.84 lp mm exceeding standards dental (2.0 breast cancer (10.0 imaging. These advancements hold significant promise high‐resolution imaging applications.

Язык: Английский

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Bisphosphonium Cation Based Metal Halide Glass Scintillators with Tunable Melting Points

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Organic-inorganic metal halide (OIMH) glass offers the advantages of large-scale production, high transparency, and minimal light scattering. However, undesired crystallization in OIMH can occur, leading to deteriorated transparency. Herein, a series bisphosphonium organic cations were designed construct Mn-based crystals with photoluminescence quantum yield (PLQY) near unity, alongside development highly thermally stable glasses. Two strategies employed lower melting point OIMH: alkyl chain elongation fluorine substitution. The (Hex-3,4-2F)MnBr

Язык: Английский

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Superlattice Assembly for Empowering Metal Nanoclusters

Accounts of Chemical Research, Год журнала: 2024, Номер 57(21), С. 3194 - 3205

Опубликована: Окт. 7, 2024

ConspectusAtomically precise metal nanoclusters, serving as an aggregation state of atoms, display unique physicochemical properties owing to their ultrasmall sizes with discrete electronic energy levels and strong quantum size effects. Such intriguing endow nanoclusters potential utilization efficient nanomaterials in catalysis, electron transfer, drug delivery, photothermal conversion, optical control, etc. With the assistance atomically operations theoretical calculations on significant progress has been accomplished illustrating structure-performance correlations at single-molecule level. research achievements, turn, have contributed rational design customization functional cluster-based nanomaterials.Most previous studies focused investigating structure-property nanocluster monomers, while exploration structures hierarchical assembled was far from enough. Indeed, application aspect, controllably assembly states (e.g., crystalline materials, host-guest hybrid amorphous powders, so on) were more suitable for performance expression relative those monomeric directed downstream solid-state applications. In this context, attention should be paid state-correlated property variations occurring aggregating assembling processes better applications accordance aptitude.Crystalline aggregates are crucial structural determination also acting a cornerstone analyze by affording atomic-level information. The regular arrangement, uniform composition, close intermolecular distance cluster molecules supercrystal lattices beneficial retention amplification molecule itself state. Besides, these nanoparticles effects, intercluster distances still located nanoscale level, wherein effect is highly likely take additional synergistic Accordingly, it expected that novel performances might occur completely different monomolecular state.In Account, we emphasize our efforts exploring enhancement aggregate states, such thermal stability, photoluminescence, activity, waveguide. enhancements further supported practical uses structure determination, polarization switch, waveguide device, on. We demonstrated differences between monomers attributed change during superlattice. "superlattice assembly" intended customize function

Язык: Английский

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Manipulating weak interactions between host/guest and analytes in Cu(I)-cluster-based MOF for fluorescent gas sensing towards chlorinated volatile organic compounds

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159923 - 159923

Опубликована: Янв. 1, 2025

Язык: Английский

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

Laser & Photonics Review, Год журнала: 2025, Номер unknown

Опубликована: Фев. 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.

Язык: Английский

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Atomically Precise Alloy AgCu Cuboid Nanocluster with Cubic Core: Gram Scale Synthesis, Total Structure, Electronic Structure, and Catalytic Performance

Materials Horizons, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The study presents the total structure and gram scale synthesis of a 32-atom AgCu alloy nanocluster [Ag 4 Cu 28 H 6 (PET) 16 Cl 8 (PPh 3 ) ][BF ] 2 , which shows excellent catalytic activity in hydrogenation hazardous nitroarenes.

Язык: Английский

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Reversible Structural Phase Transitions in Zero‐dimensional Cu(I)‐Based Metal Halides for Dynamically Tunable Emissions

Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)

Опубликована: Сен. 12, 2024

Exploring structural phase transitions and luminescence mechanisms in zero-dimensional (0D) metal halides poses significant challenges, that are crucial for unlocking the full potential of tunable optical properties diversifying their functional capabilities. Herein, we have designed two inter-transformable 0D Cu(I)-based halides, namely (C

Язык: Английский

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The trade-off anionic modulation in metal–organic glasses showing color-tunable persistent luminescence

Materials Horizons, Год журнала: 2024, Номер 11(20), С. 4951 - 4960

Опубликована: Янв. 1, 2024

Ultralong room-temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) materials provide exciting opportunities for the rational design of persistent luminescence owing to their long-lived excitons.

Язык: Английский

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