Flexible High‐Performance All‐Inkjet‐Printed Inverters: Organo‐Compatible and Stable Interface Engineering

Abstract
High‐performance all‐inkjet‐printed organic inverters are fabricated on flexible substrates. By introducing end‐functionalized polystyrene on both surfaces of inkjet‐printed source/drain Ag electrodes and poly(4‐vinylphenol) dielectrics, organic‐compatible and hydroxyl‐free interfaces between those layers and 6,13‐bis(triisopropylsilylethynyl)pentacene drastically reduce the interfacial trap and contact resistance. The resulting organic inverters show a full up‐down switching performance and a high voltage gain of 19.8.