Full-swing organic inverters using a charged perfluorinated electret fabricated by means of mass-printing technologies

We report on the successful fabrication of full-swing charged organic inverter circuits by means of continuous mass-printing technologies. Using an electrostatic charged perfluorinated gate dielectric (Cytop™), we demonstrate depletion-mode and enhancement-mode transistors with the same organic semiconductor in top-gate device structure.The threshold voltage of the printed p-type transistors can be shifted by injecting stable positive charges by means of a corona discharge or contact charging.