Used as a high-performance host material in blue phosphorescent organic light-emitting diodes (PHOLEDs). Its strong electron-transporting properties and high triplet energy make it ideal for improving device efficiency and stability. Commonly employed in the emissive layer to facilitate exciton confinement, especially in deep-blue OLED displays and lighting panels. Also utilized in tandem OLED structures to enhance overall luminous efficiency and operational lifetime. Shows good thermal stability and film-forming ability, suitable for vacuum-deposited OLED fabrication processes.