Characterization and Field-Effect Transistor Performance of Heterocyclic Oligomers Containing a Thiazolothiazole Unit

Novel mixed five-membered heterocyclic (furan, thiophene, and thiazole) oligomers containing a thiazolothiazole ring system have been investigated as active materials of organic field-effect transistors (OFETs). The field-effect moblities of 10^-4–10^-3 cm^2/Vs were obtained for the furyl derivatives and their FET performances as p-type semiconductors are presented as the first examples of FET behavior of oligomers including furan rings.