Used as a phosphorescent emitter in organic light-emitting diodes (OLEDs), particularly in the green region. Its strong spin-orbit coupling due to the iridium center enables efficient intersystem crossing, resulting in high electroluminescence efficiency. Commonly doped into host materials in the emissive layer of OLED devices for display technologies and solid-state lighting. Also investigated in sensing applications and as a triplet sensitizer in photoredox catalysis due to its long-lived excited states and tunable emission properties.