Used as an intermediate in the synthesis of organic semiconductors and optoelectronic materials. It plays a key role in the development of OLEDs (organic light-emitting diodes) due to its ability to form stable, conjugated structures that facilitate electron transport. Commonly employed in cross-coupling reactions, such as Suzuki or Buchwald-Hartwig, to build complex carbazole-based frameworks for use in blue emitters or host materials in display and lighting technologies. Also explored in perovskite solar cells as a component of hole-transport materials for improved device efficiency and stability.