Used primarily as a hole-transporting material in organic light-emitting diodes (OLEDs). It helps improve device efficiency by facilitating the injection and transport of positive charges (holes) from the anode to the emissive layer. Due to its high glass transition temperature and good thermal stability, it contributes to the durability and performance of OLED displays and lighting panels. Also employed in some organic photovoltaic devices and perovskite solar cells as a key component in the hole-transport layer, enhancing overall power conversion efficiency.