Patent ID: 7132681

Claim:
An organic electronic device comprising an emitting layer wherein 100% by weight of the emitting layer comprises at least one compound having a formula below: IrL a L b L c x L′ y L″ z , where: x=0 or 1, y=0, 1 or 2, and z=0 or 1, with the proviso that: x=0 or y+z=0 and when y=2then z=0; L′=a bidentate ligand or a monodentate ligand, and is not a phenylpyridine, phenylpyrimidine, or phenylquinoline; with the proviso that: when L′ is a monodentate ligand, y+z=2, and when L′ is a bidentate ligand, z=0; L′=a monodentate ligand, and is not a phenylpyridine, phenylpyrimidine, or phenylquinoline; and L a , L b and L c are alike or different from each other and each of L a , L b and L c has structure (I) below: wherein: adjacent pairs of R 1 –R 4 and R 5 –R 8 can be joined to form a five- or six-membered ring, at least one of R 1 –R 8 is selected from F, C n F 2n+1 , OC n F 2n+1 , and OCF 2 X, where n=1–6 and X=H, Cl, or Br, and A=C or N, provided that when A=N, there is no R 1 .