Used as a key intermediate in organic semiconductor materials, particularly in the development of blue-emitting layers for OLED (organic light-emitting diode) devices. Its rigid carbazole structure provides high thermal stability and efficient hole-transport properties, making it suitable for use in display technologies and solid-state lighting. The bromine functionality allows for further cross-coupling reactions, enabling the synthesis of larger conjugated systems for tailored optoelectronic applications. Also explored in host materials for phosphorescent OLEDs due to its high triplet energy level.