Used as a key intermediate in organic semiconductor materials, particularly in the development of hole-transport layers for OLED (organic light-emitting diode) devices. Its rigid, planar structure enhances charge carrier mobility and thermal stability, making it suitable for high-performance optoelectronic applications. Also employed in perovskite solar cells to improve device efficiency and stability due to its excellent energy level alignment and film-forming properties. Commonly found in research and development of next-generation display technologies and photovoltaics.