In recent years organic light-emiPng diodes (OLEDs) have emerged as an ever increasingly popular display technology for smartphones and television. This is because of myriad reasons, including their excellent color purity, low power consumpTon, and thinner displays. Currently, commercialized OLEDs employ 3 rd row transiTon metal complexes as emiUers for the red and green subpixel on account of their ability to harvest both singlet and triplet excitons to achieve up to 100% internal quantum efficiency (IQE). In parTcular, cyclometalated Iridium(III) complexes are parTcularly aUracTve phosphors as many have high photoluminescence quantum yields (FPL). Historically, Iridium complexes of the type Ir(C^N)3 or Ir(C^N)2(L^L) (where C^N represents a cyclometalaTng ligand like 2-phenylpyridinato and L^L represents an anionic bidentate ancillary ligand like acetyl acetonate, acac) such as Ir(ppy)2(acac) have been employed as emiUers in OLEDs. The photophysical properTes of these complexes can be easily tuned through ligand modificaTon. One approach that has been popular in recent years is the introducTon of indolo[3,2,1-jk]carbazole (iCz) moieTes in place of the phenyl unit of ppy-type ligands. These rigid, heterocycles contribute to suppressing non-radiaTve intramolecular decay modes, affording complexes with higher FPL and showing relaTvely narrowband emission, which ulTmate leads to OLEDs showing greater color saturaTon and higher efficiency (Figure ). For instance, Qu et al. designed a methyl-and tert-butyl-decorated iCz-pyridyl containing complex bearing an ancillary non-chromophoric 2,2,6,6-tetramethyl-3,5-heptanedione (tdm) ligand Ir(py-iCz)2(tdm) (Figure ). This yellow-emiPng complex (λPL = 567 nm in DCM) shows reasonably narrowband emission (FWHM = 42 nm in DCM). AddiTonally, para-subsTtuTon on the pyridyl moiety of the ligand permits facile color tuning to the orange (R = CF3, λPL = 577 nm in DCM) and red (R = TMS, λPL = 620 nm in DCM). Comparing Ir(py-iCz)2(tdm) to the reference complex Ir(ppy)2(acac) (λPL = 517 nm and FWHM = 70 nm in DCM), the emission is significantly red-shiged and, more notably, is narrowed by 28 nm.