Used as a phosphorescent emitter in organic light-emitting diodes (OLEDs), particularly in display and lighting technologies. Its strong spin-orbit coupling enables efficient conversion of both singlet and triplet excitons, resulting in high internal quantum efficiency. Commonly employed in green emitting layers due to its emission profile. Also investigated as a photosensitizer in photoredox catalysis and in biological imaging applications owing to its long luminescence lifetime and stability under irradiation.