Semiconducting ladder-type covalent organic frameworks

In this issue of Chem, Noh et al. report the synthesis of a hydrophenazine- and pyrazine-fused, ladder-type covalent organic framework. Solution processability, high crystallinity, and large grain sizes are integrated in this material, which exhibits a charge carrier mobility of 1.42 cm2V−1s−1 across a 500-nm-long channel. In this issue of Chem, Noh et al. report the synthesis of a hydrophenazine- and pyrazine-fused, ladder-type covalent organic framework. Solution processability, high crystallinity, and large grain sizes are integrated in this material, which exhibits a charge carrier mobility of 1.42 cm2V−1s−1 across a 500-nm-long channel. Hydrophenazine-linked two-dimensional ladder-type crystalline fused aromatic network with high charge transportNoh et al.ChemAugust 29, 2022In Brief2D polymers (2DPs) with unique electronic features have emerged as significant alternative materials to holey graphene. As a promising 2DP, a hydrophenazine (HP)-linked highly crystalline 2D ladder-type fused aromatic network (FAN) has been realized for the first time. Without chemical doping, the HP-FAN has an inherent semiconducting band gap along with an unusual flat parallel band. Its organic field-effect transistors and Hall effect devices show outstanding charge carrier mobilities and high on-off ratios. Full-Text PDF