Used as an intermediate in organic semiconductor materials, particularly in the synthesis of hole-transport materials for OLEDs (organic light-emitting diodes). Its aromatic structure and bromine functionality allow for further cross-coupling reactions, enabling the construction of complex conjugated systems. Commonly employed in the development of blue-emitting devices due to its high triplet energy and good thermal stability. Also utilized in perovskite solar cells as a component of dopant-free hole-transport layers, improving device efficiency and stability.