As novel bis(pyrrolo[3,4-d])tetrathiafulvalene (PyTTF)-based organic semiconductors, N-acyl-substituted PyTTFs 4 were synthesized and evaluated. Their oxidation potentials determined by cyclic voltammetry were shifted cathodically by more than 0.35 V compared with the N-alkyl-PyTTFs 3. In accordance with elevated oxidation potentials, their vapor-processed field-effect transistors showed improved air-stability with mobilities up to 0.08 cm2 V−1 s−1 under ambient conditions.
作为基于双(
吡咯并[3,4-d])四
硫杂
戊烯(Py
TTF)的新型有机半导体,合成并评估了 N-酰基取代的 Py
TTFs 4。与 N-烷基-Py
TTFs 3 相比,它们通过循环伏安法测定的氧化电位阴极偏移了 0.35 V 以上。随着氧化电位的升高,它们的气相加工场效应晶体管显示出更好的空气稳定性,在环境条件下的迁移率高达 0.08 cm2 V-1 s-1。