Used as a high-performance hole-transporting material in organic light-emitting diodes (OLEDs) and perovskite solar cells due to its excellent thermal stability and efficient charge transport properties. Its extended aromatic structure enhances film-forming ability and improves device efficiency. Also employed in multilayer organic electronics where energy level alignment and morphological stability are critical. Shows promise in photorefractive materials and electrochromic devices owing to its reversible redox behavior and strong electron-donating character.