All-organic self-contact transistors

Abstract

Organic transistors with chemically doped source/drain electrodes are fabricated by selectively doping tetracyanoquinodimethane to a thin film of hexamethylenetetrathiafulvalene. Using organic materials to create all components, including substrates, gate electrodes, and dielectrics, all-organic self-contact transistors are realized. Due to the smooth charge carrier injection from organic electrodes composed of the same type of molecules, these transistors exhibit excellent mobility exceeding 1 cm2 V−1 s−1.