Green-Blue Phosphorescent Iridium(III) Complexes with Near Unitary Quantum Yield

Iridium(III) complexes with cyclometalating ligands can achieve excellent properties for use as phosphorescent emitters in organic light emitting diodes. A series of complexes with 2-phenyl-pyridine and bis(pyrazolyl)borate ligands was investigated with regard to this application. The sky-blue to green emitters showed nearly unitary quantum yields and short excited state lifetimes.

Automated summary

Iridium(III) complexes with cyclometalating ligands have excellent properties for use as phosphorescent emitters in organic light emitting diodes. A series of complexes with 2-phenyl-pyridine and bis(pyrazolyl)borate ligands showed nearly unitary quantum yields and short excited state lifetimes in sky-blue to green emissions.