Used in organic electronics as a key intermediate for synthesizing hole-transport materials and emitters in OLEDs. Its carbazole group provides good thermal stability and efficient hole-transport properties, making it valuable in blue-emitting devices. Commonly employed in the development of fluorescent and phosphorescent dopants, host materials, and TADF emitters for display and lighting applications. Also utilized in perovskite solar cells as a component of hole-transport layers to improve device efficiency and stability.