Moreno-Moreno Miriam, Troyano Javier, Ares Pablo, Castillo Oscar, Nijhuis Christian A, Yuan Li, Amo-Ochoa Pilar, Delgado Salomé, Gómez-Herrero Julio, Zamora Félix, Gómez-Navarro Cristina
Departamento de Química Inorgánica , Universidad del País Vasco , UPV/EHU, Apartado 644, E-48080 Bilbao , Spain.
Centre for Advanced 2D Materials and Graphene Research Centre , National University of Singapore , 6 Science Drive 2 , Singapore 117546 , Singapore.
ACS Nano. 2018 Oct 23;12(10):10171-10177. doi: 10.1021/acsnano.8b05056. Epub 2018 Sep 18.
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 [CuI(TAA)] (TAA= thioacetamide). The films are shown to be homogeneous over mm 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.
二维柔性电子学的未来依赖于以简单且可控的方式制备具有机械坚固性和柔韧性的导电超薄膜。在这方面，金属有机化合物由于其结构、化学和功能的多样性，相较于无机层状晶体具有优势。虽然大多数金属有机化合物通常是批量制备的，但最近的研究表明，其中一些可以加工成低维形式。在此，我们报告了在水-空气界面进行的一锅法制备金属有机化合物[CuI(TAA)]（TAA = 硫代乙酰胺）的超薄膜（低至4纳米）。这些薄膜在毫米级区域内均匀、光滑、高度透明、机械坚固，并且是具有低频忆阻行为的良好电导体。这些特性的组合，以及制备所需的两种构建块的工业可用性，证明了它们在未来柔性和透明电子学中的广泛潜在应用。
