Used as a hole-transporting material in organic light-emitting diodes (OLEDs) due to its high thermal stability and excellent amorphous film-forming ability. Its star-shaped structure with multiple aniline groups enhances charge carrier mobility, making it effective in display and lighting technologies. Also employed in perovskite solar cells to improve device efficiency and stability by facilitating efficient hole extraction. Suitable for use in thin-film electronics where uniform layers and long-term performance are critical.