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CRYSTENGCOMM · 2024 ·Vol. 27 ·期 5 ·661-667 · IF 2.6

Achieving cuprous iodide hybrid materials with long luminescence lifetimes and high internal quantum yields via aggregation-induced emission

Zhen-Dong Xue,Yi Zhang,Hao-Yu Zhu,Juan-Juan Shao,Qiang Gao,Fang-Ming Wang

Herein, four new cuprous iodide hybrid materials 1–4 were synthesized at room temperature using two types of ligands: imidazoles and triphenylphosphine. Photoluminescence results showed that all the materials exhibited blue emissions with high internal quantum yields (IQYs) ranging from 51% to 64%. Surprisingly, the introduction of triphenylphosphine induced strong aggregation-induced emission (AIE). Additionally, the luminescence lifetimes of these materials were significantly longer, ranging from 11.53 μs to 24.33 μs, which is much longer than those of previous materials. These findings suggest that these materials could be potential candidates for non-rare earth element (REE) lighting phosphors.

研究领域: 材料化学 · 光物理 · 无机-有机杂化材料 · 发光材料 · 非稀土磷光体

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NEW JOURNAL OF CHEMISTRY · 2020 ·Vol. 44 ·期 33 ·14103-14107 · IF 3.288

Synthesis, structure and photoluminescence properties of three copper(I) iodide based inorganic–organic hybrid structures with pyrazine derivatives

Chanchan Xu,Le Lv,Dawei Luo,Wei Liu

By using pyrazine derivatives, three different types of copper(I) iodide based inorganic–organic hybrid structures, 1D-CuI(2-mo-pz) (1, 2-mo-pz = 2-methoxy-pyrazine), 2D-CuI(2,3-dm-pz)0.5 (2, 2,3-dm-pz = 2,3-dimethyl-pyrazine), and 2D-Cu2I2(2,5-dm-pz)2 (3, 2,5-dm-pz = 2,5-dimethyl-pyrazine), have been obtained by using a slow-diffusion method. Single crystal and powder X-ray diffraction analyses reveal that these hybrid structures are a one-dimensional (1D) staircase chain based structure, two-dimensional (2D) staircase-chain based structure, and 2D rhomboid dimer based structure, respectively. All of the three compounds show photoluminescence, with the internal quantum yield (IQY) as high as 88.2% for 1. This work provides evidence that for this type of hybrid materials, the structure of the inorganic module could be determined by the selection of the organic ligands and that the substituted group on the organic ligands can influence the luminescence efficiency of the hybrid structures.

研究领域: 无机化学 · 材料化学 · 配位化学 · 光物理 · 功能材料

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Achieving cuprous iodide hybrid materials with long luminescence lifetimes and high internal quantum yields via aggregation-induced emission

Synthesis, structure and photoluminescence properties of three copper(I) iodide based inorganic–organic hybrid structures with pyrazine derivatives