Used in organic synthesis as a key building block for creating organic semiconductors and optoelectronic materials. Commonly employed in Suzuki-Miyaura cross-coupling reactions to form carbon-carbon bonds, especially in the development of hole-transport materials for OLEDs (organic light-emitting diodes). Its carbazole core provides good thermal stability and hole mobility, while the boronic acid group enables efficient coupling with aryl halides. Also utilized in the fabrication of perovskite solar cells and other photovoltaic devices due to its ability to enhance device efficiency and stability.