Used as a hole-transporting material in organic light-emitting diodes (OLEDs). It helps improve device efficiency by facilitating the movement of positive charges within the emissive layer. Commonly found in blue OLEDs due to its high triplet energy and good thermal stability. Also applied in perovskite solar cells as a key component in the hole-transport layer, contributing to enhanced power conversion efficiency and device longevity. Its structural rigidity supports amorphous film formation, ensuring uniform performance in thin-film electronic devices.