Used as a high-performance hole-transporting material in organic light-emitting diodes (OLEDs). Its branched carbazole structure enhances thermal stability and film-forming properties, making it ideal for efficient blue phosphorescent and thermally activated delayed fluorescence (TADF) OLED devices. Commonly employed in display and lighting technologies where high efficiency, low driving voltage, and long operational lifetime are critical. Also explored in perovskite solar cells for improved charge extraction and device stability.