Used as a phosphorescent emitter in organic light-emitting diodes (OLEDs), particularly in red and near-infrared emission layers. Its strong spin-orbit coupling due to the iridium center enables efficient triplet harvesting, resulting in high electroluminescence efficiency. The ligand structure provides thermal and electrochemical stability, making it suitable for long-lifetime device applications. Commonly doped into host materials in the emissive layer of OLED displays and lighting panels. Also investigated in sensing and photoredox catalysis due to its tunable emission and excited-state properties.