A Water‐Soluble Ink Based on Diamine Silver(I) Carbonate, Ammonium Formate, and Polyols for Inkjet Printing of Conductive Patterns

摘要

>Electronic devices are components used in information and communications technology (ICT) where information is encoded in the electronic charge channel. Among them, those manufactured through digital printing, benefited from a tremendous research effort for the creation of a palette of functionalities provided by solution processed materials, to achieve dielectric, metallic, and semiconductive behavior. The degree of metallicity of available printable inks very seldom goes below the threshold of 200 m?/?, which is fundamental for the fabrication of high‐quality conductors. Here we describe the formulation of an ink based on a mixture of diamine silver(I) carbonate, ammonium formate, and polyols, providing several physicochemical characterizations and describing the process leading to a sheet resistance below 200 m?/? after annealing at 120 °C for 5 minutes.