Widely used in organic light-emitting diodes (OLEDs) as a host material in blue-emitting layers due to its high triplet energy and good hole-transport properties. Its rigid molecular structure enhances thermal stability and prevents aggregation, making it suitable for high-efficiency and long-lifetime devices. Commonly employed in phosphorescent and thermally activated delayed fluorescence (TADF) OLEDs. Also used as a building block in the synthesis of larger conjugated systems for optoelectronic applications.