Used as a phosphorescent emitter in organic light-emitting diodes (OLEDs), particularly in red and near-infrared devices. Exhibits high quantum efficiency and good color purity, making it suitable for display technologies and lighting applications. Its robust thermal and electrochemical stability supports long device lifetimes. Commonly doped into host materials in the emissive layer to facilitate efficient energy transfer and reduce concentration quenching. Also explored in sensing and bioimaging due to its luminescent properties in solid and solution states.