Versatile <scp>aza‐BODIPY</scp> ‐based <scp>low‐bandgap</scp> conjugated small molecule for light harvesting and <scp>near‐infrared</scp> photodetection

The versatile nature of organic conjugated materials renders their flawless integration into a diverse family optoelectronic devices with light-harvesting, photodetection, or light-emitting capabilities. Classes that offer the possibilities two more distinct functions are particularly attractive as they enable smart applications while providing benefits ease fabrication using low-cost processes. Here, we develop novel, multi-purpose small molecule by combining boron-azadipyrromethene (aza-BODIPY) electron acceptor triphenylamine (TPA) end-capping donor units. implemented donor–acceptor–donor (D–A–D) configuration, in form TPA-azaBODIPY-TPA, preserves ideal charge transfer characteristics appropriate excitation energy levels, additional ability to be used either transporting interlayer light-sensing semiconducting layer devices. To demonstrate its versatility, first show TPA-azaBODIPY-TPA can act an excellent hole transport methylammonium lead triiodide (MAPbI3)-based perovskite solar cells measured power conversion efficiencies exceeding 17%, outperforming control PEDOT:PSS nearly 60%. Furthermore, optical bandgap 1.49 eV is shown provide significant photodetection wavelength range up 800 nm where near-infrared photodetectors (OPDs) composed fullerene derivatives. Overall, established versatility combined robust thermal stability well solubility and processability, provides new guide for developing highly efficient electronic next-generation