Thiadiazole dioxide-fused picene: acceptor ability, anion radical formation, and n-type charge transport characteristics.

ABSTRACT

Picene, which is an organic p-channel semiconductor and a component of superconductors, was derivatized with a thiadiazole-dioxide moiety to afford a novel acceptor molecule (PTDAO2). PTDAO2 can form stable anion radical species in solution and as a crystal, and its neutral crystalline thin film exhibits n-type transistor characteristics.