Used primarily in organic light-emitting diodes (OLEDs) as a hole-transporting material due to its excellent thermal stability and high glass transition temperature. Its molecular structure supports efficient charge transport and prevents crystallization in thin films, making it ideal for use in display and lighting technologies. Commonly found in blue-emitting OLED devices where it helps improve device efficiency and lifespan by balancing charge injection between electrodes. Also employed in multilayer OLED architectures to confine excitons within the emissive layer, enhancing overall quantum efficiency.