Megahertz-class printed high mobility organic thin-film transistors and inverters on plastic using attoliter-scale high-speed gravure-printed sub-5 mu m gate electrodes

High performance organic thin-film transistors and inverters operating at MHz frequencies at 10 V are fabricated on plastic with high throughput (printing speed up to 1.0 m/s) using attoliter-scale high-speed gravure printing. The high performance of the devices is achieved using highly scaled gravure printed features (smaller than 5 mu m) and optimizing a high mobility organic semiconductor for the short-channel gravure printed devices (>0.5 cm(2)/V s) to realize record performance levels. (C) 2014 Elsevier B.V. All rights reserved.