The Efficiency of Red/Near-Infrared Emissions of Iridium Complexes

In this project, iridium-centered compounds with different electron-donating ancillary ligands were synthesized and the effects of these ligands were analyzed by measuring the quantum yields (how radiative and nonradiative rates varied) and lifetimes of the iridium complexes. Investigating ligands that lead to increased quantum yield in the red/near-infrared region of the visible spectrum can be used to produce light emitting devices, such as OLED screens, of increased efficiency. During synthesis and analysis, common lab techniques such as refluxing, liquid-liquid extractions, thin-layer chromatography and NMR were used to produce and characterize the compounds.