| abstract |
The invention discloses an electrophosphorescent compound of an organometallic complex, which can be applied to an organic light-emitting device OLED to obtain high-efficiency red light emission. The disclosed compound has the following chemical formula: (1) Wherein M=Ir, Eu, Os; m=1-3, wherein L is containing C, N or C, the bidentate chelation auxiliary ligand of O; It is characterized in that on the quinoline ring, a bond-absorbing Ar and R 1 to R 7 substituents of permanent aromatic ring, aromatic heterocyclic ring or aromatic heterofused ring. |