Self-assembly formation of CuI hybrid micron phosphors with tunable emission for multifunctional applications

Chen, Maosheng; Ye, Chenyu; Dai, Chengqin; Li, Ruixiang; Qi, Ruijuan; Luo, Cheng; Peng, Hui; Lin, Hechun

doi:10.1016/j.jcis.2023.01.083

Cited by 4 publications

(1 citation statement)

References 56 publications

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“…The cost-effectiveness and bright emissivity of copper(I)-halide complexes in the solid-state makes them a preferred choice. By judicious selection of the ligands, the emission wavelength of the complexes can be fine-tuned from 390–650 nm, underscoring their potential in sensing and identifying N-heteroaromatic compounds ( Ohara et al, 2014 ; Ohara et al, 2017 ; Chen et al, 2023 ). Copper(I)-halide complexes are well known for their vapochromism, which could be applied for sensing molecules in the gas phase.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescent copper(I) iodide alkylpyridine thin films as sensors for volatile halogenated compounds

Jamshidi,

Bouheriche,

Gardner

2023

Front. Chem.

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The paper presents the fabrication and characterization of [CuI(L)]n thin films, where L represents various alkylpyridine ligands including 4-methylpyridine, 3-methylpyridine, 2-methylpyridine, 4-tbutylpyridine, 3,4-dimethylpyridine, and 3,5-dimethylpyridine. The thin films were synthesized by exposing the corresponding ligands to CuI thin films through vapor deposition. The coordination reactions occurring on the films were investigated using PXRD and time-dependent photoluminescence spectroscopy, and a comparison was made between the structures of the thin films and the corresponding powder phases. The films showed primarly blue emission (λem = 457–515 nm) and polymeric structures with excited state lifetimes ranging from 0.6 to 5.5 μs. Significantly, the studied compounds exhibited fast reversible luminescence quenching when exposed to vapors of dichloromethane and dibromomethane (15 and 30 min respectively), and the luminescence was restored upon re-exposure to the alkylpyridine ligand (after 20 min). These findings indicate that these thin films hold promise for applications as sensors (with sensitive and reversible detection capability) for volatile halogen-based compounds (VHC).

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Section: Introductionmentioning

confidence: 99%

Photoluminescent copper(I) iodide alkylpyridine thin films as sensors for volatile halogenated compounds

Jamshidi,

Bouheriche,

Gardner

2023

Front. Chem.

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Rod‐Like Microcrystal Scintillators Based on Organic–Inorganic Hybrid Copper Halides for X‐Ray Imaging

Cui,

Yan,

Feng

et al. 2024

Laser & Photonics Reviews

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Copper‐based organic–inorganic hybrid halides (OIHHs) have garnered significant interest in X‐ray imaging due to their flexible structural adjustability, efficient light emission, strong X‐ray absorption, etc. Herein, four copper‐based OIHH crystals composed of the same organic ligands (isopropyl triphenylphosphonium cations, IPP+) and inorganic parts (Cu2I42−) are synthesized by varying the ratios of raw materials and types of reaction solvents. Although these crystals share identical structures, they exhibit different luminescent behaviors (blue, green, white, and yellow) attributed to vacancy defects originating from CuI. Notably, the novel copper‐based OIHH (CP2) with green emission shows the best luminescence efficiency (99.54%) and excellent scintillation performance (50675 photons MeV−1). The traditional technology of scintillation screens mixing scintillator powders and polymers often results in light scattering due to powder aggregation and inhomogeneity. To address this challenge, the dispersant polyvinyl pyrrolidone is introduced to prepare uniform rod‐like microcrystals of CP2. The scintillation screen based on CP2 microcrystals achieves a high spatial resolution of 16–18 lp mm−1, surpassing the resolution of most copper‐based OIHH scintillators. Furthermore, it is imaging capabilities are validated using a commercial X‐ray flat panel detector, demonstrating imaging performance comparable to that of commercial scintillators.

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Impact of key factors on the quality of birefringent microfigure printing using cellulose nanocrystals

Mehmandoust Kotlar,

Mashkour,

Yousefi

et al. 2025

Carbohydrate Polymer Technologies and Applications

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Self-assembly formation of CuI hybrid micron phosphors with tunable emission for multifunctional applications

Cited by 4 publications

References 56 publications

Photoluminescent copper(I) iodide alkylpyridine thin films as sensors for volatile halogenated compounds

Photoluminescent copper(I) iodide alkylpyridine thin films as sensors for volatile halogenated compounds

Rod‐Like Microcrystal Scintillators Based on Organic–Inorganic Hybrid Copper Halides for X‐Ray Imaging

Impact of key factors on the quality of birefringent microfigure printing using cellulose nanocrystals

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