Light-emitting material.
This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [C^N] 2 ML comprising two orthometalated ligands having imidazole moieties and an ancillary ligand of ²-diketonate type. It has been surprisingly found that when the metal has bound thereto both orthometalated ligands comprising imidazole moieties and an ancillary ligand of ²-diketonate type, said ligands advantageously participate in the emission process, significantly broadening emission in the visible region and enabling appreciable improvement of the white emission efficiency of complexes [C^N] 2 ML. Still objects of the invention are the use of said light emitting materials and organic light emitting device comprising said light emitting material.
37831489
Alternative title(s) : (de) Lichtemittierendes material (fr) Matériau électroluminescent (en) Light-emitting material
Patent number | Country code | Kind code | Date issued |
US8518557 | US | B2 | 2013-08-27 |
US2010102711 | US | A1 | 2010-04-29 |
JP2010505915 | JP | A | 2010-02-25 |
EP2076580 | EP | A1 | 2009-07-08 |
EP1918349 | EP | A1 | 2008-05-07 |
WO2008043815 | WO | A1 | 2008-04-17 |