abstract |
The present invention relates to cyclometallized imidazo [1,2-f] phenanthridine and diimidazo [1,2-a: 1 ', 2'-c] quinazolin ligands, or isoelectronic or benzygolation thereof It relates to a compound comprising a phosphorescent metal complex comprising an analogue. The present invention also relates to an organic light emitting diode device comprising these compounds. |