Used as a key intermediate in organic semiconductor materials, particularly in the synthesis of high-performance hole-transport materials for OLED (organic light-emitting diode) devices. Its rigid aromatic structure enhances thermal stability and improves charge carrier mobility. Commonly employed in the development of blue-emitting OLEDs due to its favorable triplet energy level and ability to form stable radical cations. Also utilized in perovskite solar cells as a dopant-free hole-transport layer, contributing to improved device efficiency and longevity.