Used as an intermediate in organic semiconductor materials, particularly in the development of hole-transport materials for OLEDs (organic light-emitting diodes). Its brominated carbazole core enables further functionalization through cross-coupling reactions, making it valuable in synthesizing high-performance optoelectronic materials. Also employed in the preparation of host materials for phosphorescent OLEDs due to its good thermal stability and triplet energy properties. Additionally, it finds use in research related to perovskite solar cells as a building block for dopant-free hole-transporters.