Near-infrared emitting organic compounds and organic devices using the same
First Claim
1. An iridium compound having the formula:
- wherein G2 is a hydrogen, phenyl, substituted phenyl, or alkyl;
wherein G1 is a hydrogen, aryl moiety, or heteroaryl moiety on any position of the adjoining pyrrole ring;
wherein G3 is a hydrogen, aryl moiety, or heteroaryl moiety on any position of the adjoining pyrrole ring;
wherein X is a nitrogen or carbon atom; and
wherein the ligand contains a phenylpyrazole moiety, phenylpyridine moiety, or phenyloxazol moiety.
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Abstract
Certain iridium compounds which may comprise an iridium(III)-ligand complex having the general formula: (ĈN)2—Ir—(N̂N). (ĈN) and (N̂N) may each represent a ligand coordinated to an iridium atom. The iridium compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-infrared (IR) range. Also, organic devices that use certain iridium compounds. The organic device may comprise an organic layer and the organic layer may comprise any of the iridium compounds disclosed herein. Also, organic devices that use certain metalloporphyrin compounds. The metalloporphyrin compounds may comprise a core porphyrin structure with four pyrrole rings. The metalloporphyrin compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-IR range.
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Citations
33 Claims
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1. An iridium compound having the formula:
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wherein G2 is a hydrogen, phenyl, substituted phenyl, or alkyl; wherein G1 is a hydrogen, aryl moiety, or heteroaryl moiety on any position of the adjoining pyrrole ring; wherein G3 is a hydrogen, aryl moiety, or heteroaryl moiety on any position of the adjoining pyrrole ring; wherein X is a nitrogen or carbon atom; and wherein the ligand contains a phenylpyrazole moiety, phenylpyridine moiety, or phenyloxazol moiety. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
wherein Z is selected from the group consisting of S, O, NH, and NRA; and
wherein RA is any alkyl group.
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6. The iridium compound of claim 1, wherein the ligand
is selected from the group consisting of: -
7. The iridium compound of claim 1, wherein any of the rings in the ligand
is substituted with an oxygen-containing group at one or more positions on the ring. -
8. The iridium compound of claim 1, wherein the compound has a formula selected from the group consisting of:
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9. The iridium compound of claim 1, wherein the compound has a formula selected from the group consisting of:
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10. An organic device comprising an iridium compound, wherein the iridium compound has the formula:
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wherein G2 is a hydrogen, phenyl, substituted phenyl, or alkyl; wherein G1 is a hydrogen, aryl moiety, or heteroaryl moiety on any position of the adjoining pyrrole ring; wherein G3 is a hydrogen, aryl moiety, or heteroaryl moiety on any position of the adjoining pyrrole ring; wherein X is a nitrogen or carbon atom; and wherein the ligand contains a phenylpyrazole moiety, phenylpyridine moiety, or phenyloxazol moiety. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
wherein Z is selected from the group consisting of S, O, NH, and NRA; and
wherein RA is any alkyl group.
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15. The organic device of claim 10, wherein the ligand
is selected from the group consisting of: -
16. The compound of claim 10, wherein any of the rings in the ligand
is substituted with an oxygen-containing group at one or more positions on the ring. -
17. The organic device of claim 10, wherein the iridium compound has a formula selected from the group consisting of:
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18. The organic device of claim 10, wherein the iridium compound has a formula selected from the group consisting of:
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19. The device of claim 10, further comprising:
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an anode; a cathode; an organic layer disposed between the anode and the cathode, wherein the organic layer comprises the iridium compound.
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20. The organic device of claim 19, wherein the device is a light-emitting diode and wherein the organic layer is an emissive layer.
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21. The organic device of claim 20, wherein the organic layer further comprises a host material, and wherein the absorption spectrum of the iridium compound overlaps with the electroluminescence emission spectrum of the host material.
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22. The organic device of claim 21, wherein the iridium compound substantially quenches the electroluminescence emission spectrum of the host material.
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23. An organic device comprising a metalloporphyrin compound, wherein the compound comprises a plurality of pyrrole rings and has a formula:
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wherein M is a metal; wherein each of R1 to R4 is independently selected from the group consisting of an aliphatic moiety, aryl moiety, heteroaryl moiety, and macrocycle moiety; wherein each of R1′
to R4′
is independently selected from the group consisting of a hydrogen, phenyl, mesityl, and methyl; andwherein the compound has a primary phosphorescent photoluminescence emission peak wavelength in the near-infrared range. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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28. The organic device of claim 26, wherein each of R1 to R4 is fused to the adjoining pyrrole ring.
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29. The organic device of claim 23, wherein M is platinum.
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30. The organic device of claim 23, wherein each of R1′
- to R4′
is a phenyl.
- to R4′
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31. The organic device of claim 23, wherein the metalloporphyrin compound has the formula:
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32. The organic device of claim 23, further comprising:
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an anode, a cathode, and an organic layer disposed between the anode and the cathode, wherein organic layer comprises the metalloporphyrin compound.
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33. The organic device of claim 23, wherein the device is a light-emitting diode and wherein the organic layer is an emissive layer.
Specification