Used as an intermediate in the synthesis of organic semiconductors and optoelectronic materials. Commonly employed in the development of hole-transport materials for OLEDs (organic light-emitting diodes) and perovskite solar cells due to its stable aromatic structure and ease of functionalization. Its bromine groups allow for further cross-coupling reactions, making it valuable in constructing complex conjugated systems for electronic devices. Also explored in the design of fluorescent dyes and sensors owing to its rigid carbazole core.