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 further comprising one or more carbene atoms coordinated to a d8 metal.
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Abstract
The present invention relates to efficient organic light emitting devices (OLEDs), and more specifically to organic materials used in such devices. More specifically, the present invention relates to materials with improved stability and efficiency when incorporated into an OLED.
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Citations
29 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 further comprising one or more carbene atoms coordinated to a d8 metal. - 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;
wherein;
M is a metal;
W, X, Y, and Z are independently a group containing C, N, P, O, or S coordinated to the metal M;
at least one of W, X, Y, or Z is coordinated to the metal by a carbene donor;
L1, L2, L3, and L4 are independently a linking group;
x can be 0 or 1. - 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 further 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 wherein each donor is optionally linked to one or more adjacent donors. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification