Widely used in organic electronics, this compound serves as a key building block for synthesizing organic semiconductors. It is particularly valuable in the development of organic light-emitting diodes (OLEDs), where it enhances device efficiency and stability due to its strong hole-transport properties and high thermal stability. Its bromine functional groups allow for easy modification through cross-coupling reactions, making it ideal for creating a variety of conjugated polymers and small molecules used in optoelectronic devices. Additionally, it is employed in the synthesis of fluorescent dyes and sensors, where its rigid carbazole core contributes to strong emission and good quantum yield. Its applications extend to photovoltaic cells, where it helps improve charge transport in organic solar cells.