The future of 2D flexible electronics relies on the preparation of conducting ultrathin films of materials with mechanical robustness and flexibility in a simple but controlled manner. In this respect, metal–organic compounds present advantages over inorganic laminar crystals owing to their structural, chemical, and functional diversity. While most metal–organic compounds are usually prepared in bulk, recent work has shown that some of them are processable down to low dimensional forms. Here we report the one-pot preparation, carried out at the water–air interface, of ultrathin (down to 4 nm) films of the metal–organic compound [Cu₂I₂(TAA)]_n (TAA= thioacetamide). The films are shown to be homogeneous over mm² areas, smooth, highly transparent, mechanically robust, and good electrical conductors with memristive behavior at low frequencies. This combination of properties, as well as the industrial availability of the two building blocks required for the preparation, demonstrates their wide range potential in future flexible and transparent electronics.

中文翻译：

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一锅法制备的机械坚固，透明，高导电和忆阻金属有机超薄膜

2D柔性电子产品的未来依赖于以简单但可控的方式制备具有机械强度和柔韧性的超薄材料导电薄膜。在这方面，由于其结构，化学和功能的多样性，金属有机化合物比无机层状晶体具有优势。尽管大多数金属有机化合物通常都是散装制备的，但最近的工作表明，其中一些可加工成低尺寸形式。在这里，我们报告了在水-空气界面处一锅制备的金属-有机化合物[Cu ₂ I ₂（TAA）] _n（TAA =硫代乙酰胺）超薄（低至4 nm）薄膜的过程。薄膜在mm ²上是均匀的区域，光滑，高度透明，机械坚固且在低频下具有忆阻性能的良好电导体。这些特性的组合以及制备所需的两个构件的工业实用性，证明了它们在未来的柔性和透明电子产品中的广泛潜力。