Used as a hole-transporting material in organic light-emitting diodes (OLEDs), this compound helps improve device efficiency and stability. Its rigid molecular structure supports high glass transition temperature, which enhances thermal stability in thin-film layers. Commonly found in blue phosphorescent OLEDs, it effectively transports holes while blocking electrons, contributing to balanced charge injection and reduced efficiency roll-off. Also employed in stacked or tandem OLED architectures due to its good film-forming properties and compatibility with adjacent layers.