Used in organic light-emitting diodes (OLEDs) as a key intermediate for hole-transport materials due to the carbazole group’s excellent charge-transport properties. The nitrile group enhances electron affinity and supports molecular stability. Commonly employed in the synthesis of blue and green emissive materials for display and lighting technologies. Also explored in perovskite solar cells as a dopant-free hole-transport layer to improve device efficiency and stability. Its rigid structure contributes to high thermal stability, making it suitable for vacuum-deposited OLED fabrication.