Two-dimensional layered materials, such as graphene and MoS2, willplay an important role in future electronics featuring compactness,flexibility, stretchability and light weight. Inkjet printing, a purelyadditive and mask-free patterning technique, is anticipated to make up for manydrawbacks of the conventional lithography technology and facilitate theapplications of 2D materials in extensive research and industrial fields. Atpresent, however, critical technical challenges, such as incompatible rheology,too low concentration and too short stable endurance, prevent inkjet printingfrom being efficient for the applications of 2D materials in electronics. Inthis presentation, I will introduce our innovative technology concept,distillation-assisted solvent exchange, which effectively addresses thecritical challenges. By successfully implementing this concept, we havedeveloped a reliable inkjet printing technique for 2D materials with theresolution as high as 50 um, and have demonstrated a variety of electronicapplications of inkjet printed 2D materials, including on-chip (integratable) micro-supercapacitors,transparent conductors, photodetectors and embedded resistors. Our technique ispromising to expedite the market growth of printed electronics.

Two-dimensional layered materials, such as graphene and MoS2, willplay an important role in future electronics featuring compactness,flexibility, stretchability and light weight. Inkjet printing, a purelyadditive and mask-free patterning technique, is anticipated to make up for manydrawbacks of the conventional lithography technology and facilitate theapplications of 2D materials in extensive research and industrial fields. Atpresent, however, critical technical challenges, such as incompatible rheology,too low concentration and too short stable endurance, prevent inkjet printingfrom being efficient for the applications of 2D materials in electronics. Inthis presentation, I will introduce our innovative technology concept,distillation-assisted solvent exchange, which effectively addresses thecritical challenges. By successfully implementing this concept, we havedeveloped a reliable inkjet printing technique for 2D materials with theresolution as high as 50 um, and have demonstrated a variety of electronicapplications of inkjet printed 2D materials, including on-chip (integratable) micro-supercapacitors,transparent conductors, photodetectors and embedded resistors. Our technique ispromising to expedite the market growth of printed electronics.