Used in organic electronics as a building block for high-performance materials, particularly in the development of hole-transport layers for OLEDs and perovskite solar cells. Its spirofluorene core provides excellent thermal and oxidative stability, while the bromine substituents allow for further functionalization via cross-coupling reactions. The piperidinyl ketone moiety enhances electron-donating properties and supports film-forming characteristics in device fabrication. Commonly employed in research settings to tune energy levels and improve device efficiency in light-emitting diodes and photovoltaic cells.