Electroluminescent iridium compounds with fluorinated phenylpryidines, phenylpyrimidines, and phenylquinolines and devices made with such compounds
AssigneeE.I. du Pont de Nemours and Company
InventorsVladimir Grushin, Daniel D. Lecloux, Viacheslav A. Petrov, Ying Wang
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Abstract
The present invention is generally directed to electroluminescent Ir(III) compounds, the substituted 2-phenylpyridines, phenylpyrimidines, and phenylquinolines that are used to make the Ir(III) compounds, and devices that are made with the Ir(III) compounds.
Claims11
A compound selected from compounds 8-a through 8-s, as shown in Table 8.
An organic electronic device comprising at least one active layer between two electrical contact layers, wherein the at least one active layer comprises at least one compound selected from compounds 8-a through 8-s, as shown in Table 8.
An organic electronic device comprising an emitting layer having an emission maximum in the range of 570 to 700 nm, wherein at least 20% by weight of the emitting layer comprises at least one compound having a Second Formula below:
- IrLaLbL′yL″z, (Second Formula)
- where:
- y is 1;
- z is 0;
- L′ is a bidentate ligand, and is not a phenylpyridine, phenylpyrimidine, or phenylquinoline;
- La and Lb are alike or different from each other and each of La and Lb has a structure selected from structure (XI) and structure (XII) below:
- 11
- where:
- at least one of R10 through R19 is selected from F, CnF2n+1, OCnF2n+1, and OCF2X, where n is an integer from 1 through 6 and X is H, Cl, or Br;
- 12
- where:
- at least one of R21 through R30 is selected from F, CnF2n+1, OCnF2n+1, and OCF2X, where n is an integer from 1 through 6 and X is H, Cl, or Br.
An organic electronic device comprising an emitting layer having an emission maximum in the range of 570 to 700 nm, wherein at least 20% by weight of the emitting layer comprises at least one compound having a Third Formula below:
- IrLaLbLc, (Third Formula)
- where:
- La, Lb, and Lc are alike or different from each other and each of La, Lb, and Lc has a structure selected from structure (XI) and structure (XII) below:
- 13
- wherein:
- at least one of R10 through R19 is selected from F, CnF2n+1, OCnF2n+1, and OCF2X, where n is an integer from 1 through 6 and X is H, Cl, or Br;
- 14
- wherein:
- at least one of R21 through R30 is selected from F, CnF2n+1, OCnF2n+1, and OCF2X, where n is an integer from 1 through 6 and X is H, Cl, or Br.
A compound selected from compounds 9-a through 9-1, as shown in Table 9.
An organic electronic device comprising an emitting layer having an emission maximum in the range of 450 to 500 nm, wherein at least 20% by weight of the emitting layer comprises at least one compound having a Sixth Formula below:
- IrLaLbL′L″ (Sixth Formula)
- where
- L′ is selected from a phosphine, an isonitrile, and carbon monoxide;
- L″ is selected from F, Cl, Br, and I;
- La and Lb have structure (I) below,
- 15
- wherein:
- R1 through R8 are independently selected from alkyl, alkoxy, halogen, nitro, cyano, fluoro, fluorinated alkyl and fluorinated alkoxy groups, and at least one of R1 through R8 is selected from F, CnF2n+1, OCnF2n+1, and OCF2X, where n is an integer from 1 through 6 and X is H, Cl, or Br, and
- A is C.
A compound selected from compounds 12-a through 12-j as shown in Table 12.
Dependencies are inferred from the claim text.