Structural transformation in isomeric 0D copper(i) iodide hybrids and their utilization as water-stable luminophores for furaltadone detection

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

Published: Jan. 1, 2025

Two hybrid copper halide isomers, 4-BrBTP(Cu 2 I 4 ) 0.5 (1-α and 1-β), are explored, showing switchable luminescence via isomeric transformation furaltadone sensitivity.

Language: Английский

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Luminescent Properties and Thermal Stability of [PPh4][Cu3I4] with a Unique Helical Structure

Molecules, Journal Year: 2025, Volume and Issue: 30(3), P. 543 - 543

Published: Jan. 25, 2025

Hybrid halocuprates (I) with organic cations show great potential for optoelectronic applications due to their tunable luminescence and high thermal stability. In this study, the iodocuprate [PPh4][Cu3I4], featuring unique helical chains of face-sharing tetrahedra, was synthesized characterized. This compound exhibits a bandgap 3.1 eV orange at low temperature, attributed self-trapped exciton emission. [PPh4][Cu3I4] demonstrates exceptional stability among hybrid decomposition above 380 °C, forming stable melt ~255 °C without Cu+ oxidation in ambient atmosphere.

Language: Английский

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Supramolecular Assembly of Organic Cu(I) Halides with Efficient Broad Emission for Real‐Time Dynamic High‐Resolution White Light and X‐Ray Image Fusion and 3D Image Reconstruction

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

Published: Feb. 12, 2025

Abstract 0D organic Cu(I) halides have gained much attention for their fascinating optical properties. However, the narrow excitation in UV region, strong afterglow, and poor stability severely limit applications. Herein, three of [Ba 2 (18‐crown‐6) ]Cu 4 Cl 8 ·H 3 PO ·6H O (Compound‐Cl), [Ba(18‐crown‐6) Br 6 ·CH OH·H (Compound‐Br), I (Compound‐I) are synthesized via supramolecular assembly. Compared to Compound‐Cl with Compound‐Br feeble photoluminescence quantum yield (PLQY), Compound‐I exhibits broadband blue light characteristics, excellent stability, efficient yellow emission a PLQY 99.4%. A high‐performance single‐component white emitting diode is fabricated by coating powders on 460 nm chip, which shows ultra‐high luminous efficiency 106 lm W −1 . Under X‐ray irradiation, has high 87 100 photons MeV low detection 45.9 nG air y s Moreover, scintillation screen made using cold pressing method, spatial resolution 20.6 lp mm Based remarkable properties short decay lifetime 1.9 µs Compound‐I, 3D image reconstruction screws wrapped capsule combining real‐time dynamic fusion, as well multi‐angle imaging successfully demonstrated.

Language: Английский

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Enhanced UV Stability of Perovskite Solar Modules via Downshifting Luminescent Organic–Inorganic Copper Halide Film with Near‐Unity Efficiency

Small, Journal Year: 2025, Volume and Issue: 21(11)

Published: Feb. 14, 2025

Abstract Obtaining efficient perovskite solar modules (PSMs) with enhanced UV stability is essential for their practical applications, yet remains a significant challenge. In this work, highly organic–inorganic copper halide downshifting film that significantly enhances the of PSMs demonstrated by converting high‐energy harmful photons into beneficial visible light contribute to photovoltaic performance. The tetrapropylammonium (TPA) cation selected as main framework synthesize series halides, denoted Br x I y . A near‐unity photoluminescence quantum yield (PLQY) 99.51% can be achieved precisely controlling Br/I ratio 2:4, 2 4 , which one highest values reported date. dual self‐trapped excitons (STEs) luminescence mechanism systematically investigated both temperature‐dependent and pressure‐dependent experiments. This dual‐STEs enables efficiently absorb re‐emit photons, thereby mitigating photodegradation induced light. Finally, effective layer. an optimal efficiency 22.24%, maintaining over 90% initial after exposure total dose 66.07 kWh m −2

Language: Английский

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HCl Assisted Transformation of Lead‐Free 0D Cs₃Cu₂I₅ Microcrystals to 3D Cs₃Cu₃Cl₉ Single Crystals for Self‐Powered UV Photodetection

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

Published: Feb. 20, 2025

Abstract Copper‐based halide perovskites have gained considerable interest in optoelectronic applications owing to their outstanding stability and luminescence properties. Herein, 3D structure of Cs 3 Cu Cl 9 single crystals is developed from the known phase 0D 2 I 5 via addition HCl. The transformed exhibit superior material properties such as an optical bandgap 2.39 eV, distinct violet emission at 425 nm, making them a potential candidate for ultraviolet (UV) photodetection. hierarchical FTO/Cs /C heterostructure UV photodetector showed remarkable responsivity 0.13 mA W −1 specific detectivity 2.20 × 10 Jones under 372 nm illumination zero bias, possessing better performance than structure. This work brings insight into transformation perovskite self‐powered photodetectors simple solvent engineering strategy, thereby paving way further investigations various applications.

Language: Английский

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Novel Orange–Red Emissive Organic–Inorganic Hybrid Copper Halide for White Light-Emitting Diodes Application

Optics Letters, Journal Year: 2025, Volume and Issue: 50(8), P. 2731 - 2731

Published: March 24, 2025

Organic–inorganic hybrid copper(I)-based metal halides (OIHCMHs) have emerged as promising alternatives to lead perovskites due their exceptional optical properties. However, the lack of low-energy light-emitting compounds prohibits further applications. Herein, we report an orange–red emissive (C 19 H 18 P) 2 Cu 4 Br 6 with a zero-dimensional structure. The photoluminescence (PL) peak locates at 640 nm PL quantum yield 69.3%, and large Stokes shift is 245 nm. Experimental analyses demonstrate bright broadband light emission derived from synergistic effect metal-to-ligand charge transfer or halide-to-ligand (MLCT/HLCT) excited state cluster-centered (CC) state. Furthermore, can be used phosphor for didoes (LEDs), by adding other blue- cyan-emitting phosphors, white LED high color rendering index over 94 achieved. This work not only demonstrates material design strategies preparing OIHCMHs but also inspires potential low-dimensional in quality

Language: Английский

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Near-unity room-temperature phosphorescence quantum yield induced by halogen–halogen interaction in chiral hybrid copper(i) iodide clusters

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

Published: Jan. 1, 2025

In this study, two pairs of 0D chiral copper iodide clusters were synthesized. The structural rigidity is increased by halogen modulation to obtain a near unity PLQY. applications in white LED and X-ray imaging are extremely promising.

Language: Английский

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Organic Tellurium (IV) Halide Hybrid as an Efficient Phosphor for Hybrid Light‐Emitting Diodes

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

Published: April 24, 2025

Abstract Developing stable and environmentally friendly metal halide electroluminescent materials is highly desirable. Lead‐free hybrids with ns 2 electron configurations offer high stability efficient self‐trapped exciton (STE) emission but suffer from poor carrier transport in devices. Furthermore, most of them are incompatible host materials, leading to inefficient energy transfer inferior device performance. Herein, a Te‐based hybrid material, (PPh 3 Bu) TeCl 6 , elaborately synthesized which demonstrates strong absorption band beyond 400 nm bright orange peaked at 605 nm, photoluminescence quantum yield (PLQY) 24% lifetime 6.5 µs. Solution‐processed LEDs neat as an emitter exhibit dual emissions, achieving current efficiency (CE) 0.67 cd A −1 external (EQE) 0.34%. Inspiritingly, once blended serve light‐emitting layer, the CE EQE dramatically increased 8.1 4.3%, respectively. Notably, more than twice that SbCl 5 despite its PLQY being only one‐third thus highlighting much superior electroluminescence due facile materials. Anyway, this work pioneers use for

Language: Английский

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Crown Ether‐Assisted Alkali‐Metal Copper(I) Iodide Supramolecular Scintillators with Near‐Unity Emission for Ultrahigh‐Resolution X‐Ray Imaging

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

Published: March 17, 2025

Abstract Harnessing supramolecular interactions to regulate the structure and performance of functional materials is a key challenge in chemistry. Herein, study utilizes 18‐crown‐6 (18C6) ether‐assisted alkali‐metal (Na, K, Cs) copper(I) iodide assemblies precisely material structures. This approach facilitated transition from 1D mono‐royal crown coordination (18C6@KCuI 2 , CKCI) 0D di‐royal ((18C6) @Na (H O) 3 Cu 4 I 6 CNCI) tri‐royal @Cs CCCI) Interestingly, CCCI single‐crystal exhibits outstanding scintillation properties, with high relative light yield 71 000 photons MeV −1 an ultralow detection limit 39.3 nGy s which can be attributed synergistic effects 18C6 copper‐iodide clusters. It stabilizes self‐trapped exciton state, enhances localization, reduces non‐radiative losses, thus resulting large Stokes shift 193 nm near‐unity photoluminescence quantum 99.4%. Additionally, promote crystal nucleation growth, making it easy prepare centimeter‐scale transparent single crystals >80% transmittance, such as achieve ultrahigh‐resolution X‐ray imaging 26.3 lp mm . demonstrates that halide scintillators regulated through interactions, provides new for developing high‐performance scintillator materials.

Language: Английский

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Blue-Light-Excitable Yellow Emissive One-Dimensional Hybrid Copper(I) Iodide for White-Light-Emitting Diode and Methanol Sensing Application

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

Published: April 4, 2025

Copper(I) halides are promising candidates for advanced optoelectronics, such as white-light-emitting diodes (WLEDs), scintillators, and photodetectors. Designing synthesizing low-dimensional hybrid copper with blue-light excitation remains an enormous challenge. Herein, we have prepared two one-dimensional (1D) Cu(I)-based metal iodides, namely, (C6H7N)CuI (C6H8N)CuI2 single crystals, by deliberately adjusting the ratio of reactants 4-methylpyridine (4-MePy) CuI. crystals nonluminous, while exhibit unusual yellow emission a broad band in range 260-500 nm Furthermore, prototypical WLED is fabricated combining commercial 430 blue chip phosphor, which exhibits correlated color temperature (CCT) 5645 K CIE coordinate (0.329, 0.334), thus demonstrating potential application white lighting. Remarkably, emit red fluorescence upon adsorption methanol but fail all other alcohols. Notably, initial luminescence can be recovered volatilization from achieving reversible photoluminescence switching. This work not only presents important reference blue-light-excitable iodide phosphor WLEDs also provides intriguing sensor detection methanol.

Language: Английский

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