Highly Emissive Organic Cuprous Halides with [Cu₄Br₆]²⁻ Unit for X‐Ray Imaging

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

Published: Jan. 2, 2025

Abstract Organic‐inorganic hybrid cuprous halides (OHCHs) are intriguing candidates for the next generation of scintillators due to their environmental friendliness, simple preparation, and excellent luminescent properties. Herein, a series efficient OHCHs based on inorganic building blocks [Cu 4 Br 6 ] 2− clusters, designated as (TMAA) 2 Cu , (EtTPPh) (MtTBA) (TMAA = N,N,N ‐trimethyltrimethyl‐1‐adamantylammonium; EtTPPh ethyltriphenylphosphonium; MtTBA methyltri‐n‐butylammonium), synthesized via solution method. The three exhibit broadband yellow emissions. Remarkably, 0D shows near‐unity photoluminescence quantum yield, which can be attributed highly localized excitons rigid environment. Impressively, it is demonstrated show scintillation performance with high light yield 46700 photon MeV −1 low detection limit 56.12 nGy air s . Photophysical studies reveal that bright emission in originates from self‐trapped excitons. This work opens an inspirational avenue structure design high‐performance X‐ray scintillators.

Language: Английский

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Novel cyan emissive organic–inorganic copper halides: Phase transition, flexible large-area composite film, and multifunctional luminescent applications

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1012, P. 178495 - 178495

Published: Jan. 1, 2025

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

Published: Feb. 17, 2025

Language: Английский

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Highly Selective Protic-Solvent-Mediated Organic–Inorganic Hybrid Cuprous Bromides Achieving Structural Transformation

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(27), P. 12409 - 12416

Published: June 21, 2024

The potential application of stimuli-responsive hybrid copper halides in information storage and switch devices has generated significant interest. However, their transformation mechanism needs to be further studied deeply. Herein, two zero-dimensional (0D) organic–inorganic hybrids, namely, (TBA)CuBr2 (1) with linear [CuBr2]− units (TBA)2Cu4Br6 (2) [Cu4Br6]2– clusters (TBA+ = (C4H9)4N+), are synthesized using simple solvent evaporation approaches. Interestingly, upon exposure distinct protic solvents, such as methanol, ethanol, ethylene glycol, or hot water, 1 undergoes a into 2 varying degrees transition, accompanied by change luminescence color from cyan orange (or mixed color) under high-energy emission (e.g., 254 nm) excitation. Hot water can trigger completely transform because its large contact angle difference the solvents. Furthermore, converted back through solid-state mechanochemical reaction. Additionally, structure remains unchanged even after immersion 80 °C H2O for 168 h due dense organic framework. This study provides valuable insights exploring reversible structural materials 0D metal halide system.

Language: Английский

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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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The Effects of the Coordination Environment on the Self-Trapped Exciton in Hybrid Organic–Inorganic Copper(I) Halides

The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 17, 2025

Hybrid organic–inorganic copper(I) halides are promising light-emitters due to their structural diversity and tunable optical properties. However, the role of Cu(I) coordination environments in formation self-trapped exciton (STE) impact on luminescence remains underexplored. Here, we investigate influence coordination, ranging from linear [CuX2] tetrahedral [CuX4] (X = Cl, Br, I), with varying connection types. First-principles excited-state calculations reveal that configurations undergo significant distortion, including elongation Cu–X bonds, while planar exhibit Cu–Cu distance compression, enhancing 4s–4s interactions leading large Stokes shifts. Additionally, demonstrate how variations connectivity motifs within similar critically affect luminescent behavior. These insights offer valuable guidance for rational design efficient Cu(I)-based light emitters, emphasizing synergistic effects both geometry connectivity.

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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Remarkable Piezochromism and Pressure-Induced Blue Emission Enhancement in Complex-Unit Copper Halides

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 996 - 1002

Published: Feb. 14, 2025

Language: Английский

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Excitation‐Wavelength‐Induced Dual‐Band Fluorescence of Copper Halides for Multi‐Mode Encryption and Anti‐Counterfeiting Applications

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

Published: March 4, 2025

Abstract Low‐dimensional metal halides have emerged as promising anti‐counterfeiting materials. However, achieving a multi‐mode and multi‐color system in remains challenging. In this study, copper‐halide (TBP) 2 Cu 4 Br 6 (TBP + = C 16 H 36 P ) single crystals are synthesized using cooling crystallization method, which exhibits efficient dual‐band emissions (542 708 nm), large Stokes shifts (282 330 high photoluminescence quantum yield (PLQY) of 92.7% for 542 nm. These exceptional properties attributed to the unique 0D structure crystals, facilitates formation two different self‐trapped excitons (STEs). Furthermore, based on , digital integrated is designed with Morse code information encryption, demonstrating applications security anti‐counterfeiting. This work not only illustrates an emitter copper but also paves way systems.

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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