Used primarily as a hole-transporting material in organic light-emitting diodes (OLEDs). Its molecular structure supports efficient charge transport and enhances device stability. Commonly found in blue-emitting OLED layers due to its suitable HOMO energy level and high glass transition temperature, which helps maintain film integrity during operation. Also employed in perovskite solar cells as a key component in the hole-transport layer, contributing to improved power conversion efficiency and device longevity. Its thermal stability and film-forming properties make it ideal for vacuum-deposited organic electronic devices.