Wide‐Range Color Tuning of Iridium Biscarbene Complexes from Blue to Red by Different <i>N</i>⁁<i>N</i> Ligands: an Alternative Route for Adjusting the Emission Colors

Abstract

Four new iridium biscarbene complexes with different N⁁N ligands showing very different emission colors from deep-blue to red are synthesized. The emission colors are mainly controlled by the N⁁N ligands. The electroluminescent devices using these complexes as dopant emitters exhibit extremely high efficiencies.