Used as an intermediate in organic semiconductor materials, particularly in the production of blue-emitting layers for OLED (organic light-emitting diode) devices. Its rigid carbazole structure provides good thermal stability and hole-transport properties, making it suitable for use in display technologies and solid-state lighting. Also employed in the synthesis of host materials for phosphorescent OLEDs due to its high triplet energy level. Additionally, it finds application in perovskite solar cells as a hole-transporting material to improve device efficiency and stability.