Used in organic electronics as a building block for conjugated polymers and small molecules in organic field-effect transistors (OFETs) and organic photovoltaics (OPVs). Its fused heteroaromatic structure enhances charge carrier mobility and stability. Commonly employed in the synthesis of donor-acceptor copolymers to tune bandgap and improve semiconductor performance. Also explored in thin-film transistors and sensors due to its strong intermolecular interactions and good film-forming properties.