Used as a red phosphorescent dopant in organic light-emitting diodes (OLEDs), particularly in display and lighting technologies. Its molecular structure enables efficient emission of deep red to near-infrared light, making it suitable for high-efficiency electrophosphorescent devices. The compound exhibits good thermal stability and film-forming properties when deposited via vacuum sublimation, which is critical for multilayer OLED fabrication. It is primarily employed in research and development of emissive layers where long operational lifetime and high color purity are required. Due to its heavy atom effect from bromine, it facilitates strong spin-orbit coupling, enhancing intersystem crossing and phosphorescent quantum yield.