Used as a key intermediate in the synthesis of organic semiconductors and optoelectronic materials. Its brominated structure allows for further functionalization via cross-coupling reactions, making it valuable in the development of organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs), and photovoltaic devices. The tert-butyl groups enhance solubility and stability, improving processability in thin-film fabrication. Also employed in the preparation of fluorescent dyes and sensors due to the inherent photophysical properties of the carbazole core.