Used as an intermediate in the synthesis of organic semiconductors and optoelectronic materials. Its rigid carbazole core and bromine functionalization make it suitable for cross-coupling reactions in the production of hole-transport materials for OLEDs and perovskite solar cells. Commonly employed in the development of high-efficiency light-emitting diodes and photovoltaic devices due to its excellent thermal stability and charge transport properties. Also explored in the design of fluorescent sensors and organic light-emitting transistors.