(Figure ). Since this publication, there has been a growing number of blue-emitting Ir(C^C)3 complexes reported and their use as emitters in OLED, the diversity of iridium(III) NHC complexes has recently been reviewed. complexes and their emission properties and OLED performance. Media for emission studies a) 2-MeTHF solution, b) doped in TSPO1 film (40 wt%), c) DCM solution, d) THF solution.