Used as a high-performance host material in blue phosphorescent organic light-emitting diodes (PHOLEDs). Its molecular structure provides excellent thermal stability and high triplet energy, making it ideal for efficient energy transfer to blue emitters. It helps improve device efficiency, lifetime, and color purity in OLED displays and lighting. Commonly employed in the emissive layer due to its balanced charge transport properties, supporting both holes and electrons. Also explored in thermally activated delayed fluorescence (TADF) OLEDs as a host for blue TADF emitters.