Used as a key building block in organic semiconductors, particularly in the synthesis of conjugated polymers for organic field-effect transistors (OFETs) and organic photovoltaics (OPVs). Its rigid, planar structure enhances π-conjugation and promotes strong intermolecular stacking, improving charge carrier mobility. Also employed in the development of donor-acceptor type copolymers to tune bandgap and electronic properties. Shows promise in flexible electronics and printed semiconductor devices due to its solution-processability and thermal stability.