Used as a hole-transporting material in organic light-emitting diodes (OLEDs). Its rigid, conjugated structure supports efficient charge transport and enhances device stability. Commonly employed in blue-emitting OLEDs due to its high triplet energy and suitable HOMO level. Also applied in perovskite solar cells as a key component in the hole-transport layer, improving power conversion efficiency. Its thermal stability and film-forming properties make it suitable for vacuum-deposited and solution-processed optoelectronic devices.