Used as a key building block in the synthesis of organosilicon-based conjugated polymers and small molecules for optoelectronic applications. Its rigid, planar structure enhances electronic delocalization, making it valuable in organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). The silicon bridge improves thermal stability and influences the HOMO-LUMO energy levels, enabling fine-tuning of emission and charge transport properties. Also employed in the development of silole-containing materials with aggregation-induced emission (AIE) characteristics for use in sensors and luminescent materials.