Organic Single Crystals of Cyano-Substituted p-Phenylene Vinylene Derivatives as Transistors with Low Surface Trap Density

We report the preparation of two high-quality lamellar crystals of cayno-substituted p-phenylene vinylene derivatives and the fabrication of their transistors. The transistors were demonstrated hysteresis-free, low subthreshold swing of 0.10 V dec-1 and high mobilities of 2.73 cm2 V-1 s-1, more importantly, the low defect density of 1 per 1.82 × 104 molecules confirmed their high crystal quality.