OLEDs utilizing macrocyclic ligand systems
First Claim
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1. An organic light emitting device, comprising:
- (a) an anode;
(b) a cathode;
(c) an organic layer disposed between the anode and the cathode, wherein the organic layer comprises a compound comprising one or more carbene atoms coordinated to a d8 metal;
wherein the compound further comprises a multidentate ligand.
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Abstract
The present invention provides organic light emitting devices (OLEDs) and materials with improved stability and efficiency when incorporated into an OLED. The materials include organometallic compounds having carbene atom/donor coordinated to a metal center. The compounds may be macrocyclic electrophosphors. The compounds may also include a macrocyclic ligand coordinated to a metal center.
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Citations
28 Claims
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1. An organic light emitting device, comprising:
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(a) an anode; (b) a cathode; (c) an organic layer disposed between the anode and the cathode, wherein the organic layer comprises a compound comprising one or more carbene atoms coordinated to a d8 metal;
wherein the compound further comprises a multidentate ligand. - View Dependent Claims (2, 3)
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4. An organic light emitting device, comprising:
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(a) an anode; (b) a cathode; (c) and a phosphorescent emissive region disposed between the anode and the cathode, wherein the emissive region comprises an emissive material having a structure V; - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An organic light emitting device, comprising:
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(a) an anode; (b) a cathode; (c) an organic layer disposed between the anode and the cathode, wherein the organic layer comprises a compound comprising a metal coordinated to; i) one or more carbene donors; ii) 0-3 neutral donors; and iii) 0-3 monoanionic donors; wherein the total number of donors is the maximum number of ligands that may be attached to the metal, and each donor is optionally linked to one or more adjacent donors, and two or more donors are linked to form a macrocyclic ligand. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification