Used as a key intermediate in the synthesis of organic semiconductors and optoelectronic materials. Its brominated phenyl-carbazole structure supports charge transport properties, making it suitable for applications in organic light-emitting diodes (OLEDs) and perovskite solar cells. The tert-butyl groups enhance solubility and film-forming ability, while the bromine atom allows for further functionalization via cross-coupling reactions such as Suzuki or Heck coupling. Frequently employed in the development of hole-transport materials and host compounds in emissive layers due to its thermal stability and favorable energy levels.