Azadipyrromethene derived polycyclic aromatic complexes (HBPs) containing thirteen fused rings have been synthesized, which show highly selective intense absorption in the near infrared spectrum (NIR) region with high photo- and thermo-stability. The periphery alkoxy and alkyl substituents greatly affect their molecular packing structures in thin films and their thin film transistor performances. With the simple changes of the alkyl substituents, the packing structures changed from discrete-grain with H-aggregation type absorption to lamellar packing with J-aggregation type absorption, and the semiconducting properties were modulated from p-type to interesting ambipolar-type in solution-processed organic field effect transistors (OFETs) with hole and electron mobilities reaching to 0.42 and 0.17 cm² V⁻¹ s⁻¹, respectively.

已经合成了含有十三个稠合环的叠氮二吡咯亚甲基衍生的多环芳族络合物（HBP），这些化合物在近红外光谱（NIR）区域显示出高选择性，并具有高的光稳定性和热稳定性。外围的烷氧基和烷基取代基极大地影响了它们在薄膜中的分子堆积结构以及它们的薄膜晶体管性能。随着烷基取代基的简单变化，堆积结构从具有H聚集型吸收的离散颗粒变为具有J聚集型吸收的层状堆积，并且从p调节了半导体性能。溶液处理的有机场效应晶体管（OFET）的电子类型变为有趣的双极型，其空穴和电子迁移率分别达到0.42和0.17 cm ² V ^-1 s ^-1。