High-Performance Phototransistor Based on a 2D Polybenzimidazole Polymer.

ABSTRACT: Photodetectors are fundamental components of modern optoelectronics, enabling the conversion of light into electrical signals. The development of high-performance phototransistors necessitates materials with both high charge carrier mobility and robust photoresponse. However, achieving both in a single material poses challenges due to inherent trade-offs. Herein, this study introduces a polybenzimidazole-(1,3-diazole)-based 2D polymer (2DPBI), synthesized as few-layer, crystalline films covering ≈28 cm² on the water surface at room temperature, with large crystalline domain sizes ranging from 110 to 140 µm². The 2DPBI incorporates a π-conjugated photoresponsive porphyrin motif through a 1,3-diazole linkage, exhibiting enhanced π-electron delocalization, a narrow direc

SUBMITTER: Prasoon A 

PROVIDER: S-EPMC12369690 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature