Designing Polychromatic Luminescence in Mn²⁺-Doped Cs₂NaLuCl₆ Double Perovskite Crystals via Energy Transfer Engineering for Optical Thermometry and X-ray Imaging

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Metal halide double perovskites with splendid optical features have been considerably investigated for optoelectronic applications. Herein, a series of Mn2+-doped Cs2NaLuCl6 perovskite crystals were prepared. Via adopting the density functional theory calculation, effect Mn2+ doping on electronic structure compound was discussed. It found that crystal can emit intense blue light from host self-trapped exciton (STE) emission. Excited by 320 nm, STE and emissions simultaneously observed in resulting crystals. Owing to efficient energy transfer Mn2+, polychromatic luminescence final products. Moreover, taking advantage various responses emission intensities temperature, thermometric characteristics investigated, their maximum relative sensitivity is 0.99% K-1, which hardly impacted content. Furthermore, prepared exhibit good X-ray radioluminescence properties, low detection limitation 0.99 μGyair s-1. Additionally, utilizing designed crystal, flexible imaging high resolution 20 lp mm-1 be operated high-temperature environment realized. These results indicated are suitable thermometry imaging.

Язык: Английский

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Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic–inorganic hybrid metal halide crystals

Science China Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Язык: Английский

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Near‐Unity PLQY of Cs₃Cu₂X₅ (X = Cl, Br) for High‐Efficiency White Light‐Emitting Diodes with Exceptional Color Quality

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

Metal halide perovskites and their derivatives have emerged as highly promising materials for next-generation optoelectronic devices, owing to intrinsic defect tolerance exceptional electrical optical properties. Among these, lead-free copper(I)-based perovskite derivatives, Cs₃Cu₂X₅ (X = Cl, Br, I) (CHPs), garnered significant attention environmentally friendly stable alternatives lead-based perovskites. In this study, a cost-effective sustainable synthesis route Cs₃Cu₂Cl₅ Cs₃Cu₂Br₅ powders is developed, which exhibit strong green (≈526 nm) blue (≈458 emissions, achieve remarkable photoluminescence quantum yields (PLQYs) of 100% 92%, respectively. Br) are incorporated into 3D-printed structures, exhibiting excellent transparency color stability. Furthermore, white LEDs fabricated by using the green-emitting blue-emitting yellow-emitting double (PLQY≈ 73%), resulting in devices with an exceptionally high rendering index (CRI) up 98 tunable correlated temperatures (CCTs) ranging from 3864 9677 K, closely mimicking natural light. Beyond solid-state lighting, superior performance stability open new avenues application photovoltaics other devices.

Язык: 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, Год журнала: 2025, Номер unknown

Опубликована: Март 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.

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

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 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.

Язык: Английский

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[Ga(C₂H₆OS)₆](SbBr₆): A Highly Luminescent Organic–Inorganic Hybrid Bimetallic Bromide Synthesized via a Cation Hybridization Strategy

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Июнь 4, 2025

In this report, a new organic-inorganic hybrid bimetallic halide with excellent luminescent properties, namely, [Ga(C2H6OS)6](SbBr6), has been synthesized and characterized. This compound crystallizes in the trigonal space group R3̅ = b 13.83069(14) Å, c 15.7632(3) V 2611.34(7) Å3, Z 3, features zero-dimensional structure composed of isolated [Ga(C2H6OS)6]3+ cation clusters (SbBr6)3- inorganic anion octahedra. [Ga(C2H6OS)6](SbBr6) crystals exhibit bright yellowish-green photoluminescent broadband emission centered at 540 nm full width half-maximum 115 nm, large Stokes shift 175 high photoluminescence quantum yield 43.1%. Moreover, displays impressive radioluminescence performance when excited by X-rays, light 13 500 photons MeV-1 radiation resistance. Flexible films incorporating polydimethylsiloxane illustrate X-ray imaging ability spatial resolution approximately 10 lp mm-1 low detection limit 161.2 nGyair s-1. These preliminary investigations demonstrate considerable potential for applications radiography.

Язык: Английский

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Zero-dimensional cuprous halide scintillator with ultra-high anti-water stability for X-ray imaging

Inorganic Chemistry Frontiers, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

A cuprous hybrid halide with high efficient photoluminescence and anti-water stability was prepared by reasonably selecting a hydrophobic organic cation, which allows this as high-performance scintillator for X-ray imaging.

Язык: Английский

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Water-Stable Zero-Dimensional Hybrid Zinc Halide Modulated by π-π Interactions: Efficient Blue Light Emission and Third-Order Nonlinear Optical Response

Inorganic Chemistry Frontiers, Год журнала: 2024, Номер 11(23), С. 8431 - 8438

Опубликована: Янв. 1, 2024

Waterproof 0D hybrid Zn halide with highly efficient blue emission and third-order nonlinear optical response was constructed by the microregulating of π–π interactions, offering new insights for designing stable multifunctional materials.

Язык: Английский

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Rational Design of Single‐Component White‐Light Emissive Molecular Copper Clusters

Advanced Optical Materials, Год журнала: 2024, Номер 13(2)

Опубликована: Ноя. 21, 2024

Abstract The development of low‐cost and earth‐abundant phosphors for substituting expensive noble metals toxic lead materials is currently major importance sustainable solid‐state lighting technologies. Hybrid copper halide are receiving considerable attention due to their unique diverse structural photophysical properties combined low cost toxicity. This article reports the rational design iodide compounds developing single‐component white light emitters. By a ligand engineering strategy, energy layout molecular clusters can be adjusted variation in relative intensity two emission bands obtained, enabling emitted. Temperature dependence this dual‐emission feature also allows high contrast luminescence thermochromism. Thanks good solubility properties, studied have been successfully incorporated within organic polymer leading with processability suitable application development. Therefore, potential applicability these composite has demonstrated various fields as ratiometric thermometry, emitters phosphor‐converted white‐light emitting diodes, ink anticounterfeiting properties. study highlights power strategy develop multifunctional based on light‐emitting materials.

Язык: Английский

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