Organic metal-semiconductor field effect transistor (OMESFET) made on a rubrene single crystal

Organic metal-semiconductor transistors, where the gate consists of a low-workfunction metal directly deposited on the semiconductor, are fabricated on rubrene single crystals (see figure). A careful analysis of the current-voltage characteristics and impedance spectroscopy of the corresponding diode leads to the conclusion that the current in the transistor is controlled by a modulation of charge injection from the source electrode. (Figure Presented) © 2010 WILEY-VCH Verlag GmbH & Co. KGaA.