| Abstract Scope |
In this talk, recent progress towards print-in-place electronics will be discussed; print-in-place involves loading a substrate into a printer, printing all needed layers, then removing the substrate with electronic devices immediately ready to test. Inks from various nanomaterials enable this progress, including: 2D graphene and hexagonal boron nitride, 1D carbon nanotubes, and quasi-1D silver nanowires. Using an aerosol jet printer, functional 1D-2D thin-film transistors (TFTs) are printed without ever removing the substrate from the printer and using a maximum process temperature of 80 ºC with most processing at room temperature. To achieve this, significant advancements were made to minimize the intermixing of printed layers, drive down sintering temperature, and achieve sufficient thin-film electrical properties. Devices are demonstrated on various substrates, including paper. What’s more, recent progress towards a completely recyclable printed transistor will be discussed, fabricated entirely using nanoscale carbon-based inks. |