Used as a hole-transporting material in organic light-emitting diodes (OLEDs) due to its excellent thermal stability and efficient charge transport properties. Its rigid molecular structure enhances device performance by improving film formation and reducing energy loss. Commonly employed in blue phosphorescent OLEDs to increase efficiency and operational lifetime. Also explored in perovskite solar cells as a dopant-free hole-transport layer, offering a cost-effective and stable alternative to traditional materials.