Used as an intermediate in the synthesis of organic semiconductors and optoelectronic materials. Commonly employed in the development of OLEDs (organic light-emitting diodes) due to its ability to form stable hole-transporting layers. Also utilized in the preparation of photovoltaic devices and perovskite solar cells, where it enhances device efficiency and stability. Its bromine functionality allows for easy functionalization via cross-coupling reactions, making it valuable in constructing complex conjugated systems for advanced material science applications.