Three ladder linear 5,7,12,14-tetraazapentacenes (1–3) have been synthesized by an improved condensation reaction with high yields. These tetraazapentacenes show higher thermal and optical stability in solution and solid films compared to pentacene. Organic thin film transistors (OTFTs) based on amorphous films of 5,7,12,14-tetraazapentacene are investigated in this contribution. A field-effect mobility of a stable amorphous OTFT in air up to 2 × 10−2 cm2 V−1 s−1 has been achieved. The high stability and high mobility in the amorphous state of ladder compounds 1–3 combined with the easy synthesis make them a new family of promising candidate for organic electronic devices.
                                    通过改进的缩合反应以高产率合成了三个梯形线性 5,7,12,14-四氮杂五苯 (1-3)。与
并五苯相比,这些四氮杂五苯在溶液和固体膜中表现出更高的热稳定性和光学稳定性。本论文研究了基于 5,7,12,14-四氮杂五苯非晶薄膜的有机薄膜晶体管 (OTFT)。稳定的非晶 OTFT 在空气中的场效应迁移率高达 2 × 10−2 cm2 V−1 s−1 。梯形化合物 1-3 在无定形状态下的高稳定性和高迁移率,加上易于合成,使其成为有机电子器件的一个新的有前途的候选家族。