Used in organic light-emitting diodes (OLEDs) as a key component in emissive and host layers due to its excellent hole-transport properties and thermal stability. Its rigid carbazole backbone and brominated aryl group enhance film-forming ability and support efficient energy transfer, making it suitable for blue and green phosphorescent OLED devices. Also employed in the synthesis of larger conjugated molecules for optoelectronic applications, including organic photovoltaics and sensors. The compound’s tunable electronic structure allows for modification to improve device efficiency and lifetime.