One-Pot Preparation of Mechanically Robust, Transparent, Highly Conductive, and Memristive Metal-Organic Ultrathin Film

Miriam Moreno-Moreno, Javier Troyano, Pablo Ares, Oscar Castillo, Christian A Nijhuis, Li Yuan, Pilar Amo-Ochoa, Salomé Delgado, Julio Gómez-Herrero, Félix Zamora, Cristina Gómez-Navarro

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    Abstract

    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.

    Original languageEnglish
    JournalACS Nano
    Early online date18 Sept 2018
    DOIs
    Publication statusPublished - 2018

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