Recently, copper(I)-based metal halides have gained increasing attention due to their diverse structures and desirable optoelectronic properties. Herein, we report a novel zero-dimensional (0D) Cu-based halide (CHOP)CuCl [CHOP = (Methoxymethyl)triphenylphosphonium chloride cation], single crystals (SCs) of which were synthesized by a simple solution growth method. The bulk assembly of the periodic 0D structure is formed by the organic cation [CHOP] surrounding isolated [CuCl] units. The (CHOP)CuCl single crystals emit broadband yellow light upon UV excitation. Similarity to hybrid Br/I based copper compounds, as-synthesized compound displays remarkable resistance to water, maintaining its photoluminescence (PL) intensity at over 94% even after being immersed in water for 24 h. This work demonstrates the potential of constructing luminescent materials with high water resistance, which will pave the way for a new approach to developing water-resistant materials based on lead-free metal halides.

中文翻译：

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具有高抗水稳定性的零维有机-无机杂化卤化亚铜(C20H20OP)CuCl2

近年来，铜（I）基金属卤化物由于其多样化的结构和理想的光电性能而受到越来越多的关注。在此，我们报告了一种新型的零维（0D）铜基卤化物（CHOP）CuCl [CHOP =（甲氧基甲基）三苯基氯化鏻阳离子]，其单晶（SC）是通过简单的溶液生长方法合成的。周期性 0D 结构的块体组装是由围绕孤立的 [CuCl] 单元的有机阳离子 [CHOP] 形成的。 (CHOP)CuCl 单晶在紫外线激发下发出宽带黄光。与混合 Br/I 基铜化合物类似，合成的化合物表现出显着的耐水性，即使在水中浸泡 24 小时后，其光致发光 (PL) 强度仍保持在 94% 以上。这项工作展示了构建具有高防水性的发光材料的潜力，这将为开发基于无铅金属卤化物的防水材料的新方法铺平道路。