Widely used in organic light-emitting diodes (OLEDs) as a hole-transporting material due to its excellent thermal stability and efficient charge transport properties. It helps improve device efficiency by facilitating the injection and movement of positive charges (holes) from the anode into the emissive layer. Commonly found in display technologies and lighting panels where high performance and long operational lifetime are required. Also employed in perovskite solar cells for its effective hole extraction capability, contributing to higher power conversion efficiency. Its molecular structure supports good film-forming ability, making it suitable for use in thin-film devices.