Used as an intermediate in organic semiconductor materials, particularly in the development of hole-transport layers for OLED (organic light-emitting diode) devices. Its brominated structure allows for further functionalization via cross-coupling reactions, making it valuable in synthesizing conjugated polymers and small molecules for optoelectronic applications. Exhibits good thermal stability and film-forming properties, which are essential for efficient and durable device performance. Also explored in perovskite solar cells as a dopant-free hole-transport material to enhance device efficiency and stability.