Used as a high-performance hole-transporting material in organic light-emitting diodes (OLEDs). It helps improve device efficiency by facilitating the injection and transport of positive charges (holes) from the anode to the emissive layer. Due to its high triplet energy and excellent thermal stability, it is also employed in blue phosphorescent and thermally activated delayed fluorescence (TADF) OLEDs to prevent exciton quenching and enhance luminescence. Commonly found in multilayer OLED stack designs for displays and lighting applications.