Used primarily in organic light-emitting diodes (OLEDs), this compound serves as a host material in the emissive layer, enhancing device efficiency and stability. Its high thermal stability and excellent charge transport properties make it suitable for blue phosphorescent and thermally activated delayed fluorescence (TADF) OLEDs. Additionally, it is employed in organic photovoltaic (OPV) devices to improve charge separation and transport, contributing to higher power conversion efficiencies. Its spirobifluorene core ensures good film-forming properties, which are crucial for uniform thin-film deposition in optoelectronic applications.