Used as a key intermediate in the synthesis of conjugated polymers for organic semiconductors, particularly in organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). Its brominated structure allows for efficient coupling reactions, such as Suzuki or Heck couplings, enabling the construction of high-performance polymer chains with tailored electronic properties. The fluorene core provides good thermal stability and planarity, enhancing charge transport in electronic devices. Commonly employed in the development of blue-emitting materials in OLED displays and lighting technologies.