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US 8,007,926 B2Granted
Luminescent compounds with carbene ligands
AssigneeUniversity of Southern California
InventorsMark E. Thompson, Arnold Tamayo, Peter Djurovich, Tissa Sajoto
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Abstract
An organic light emitting device is provided. The device has an anode, a cathode and an organic layer disposed between the anode and the cathode. The organic layer comprises a compound further comprising one or more carbene ligands coordinated to a metal center.
Claims23
An organic light emitting device, comprising an anode, a cathode and a phosphorescent emissive layer disposed between the anode and the cathode, wherein the phosphorescent emissive layer comprises a phosphorescent emissive material;
- and wherein the phosphorescent emissive material comprises a cyclometallated, five-membered ring, which includes a metal atom bound to two carbon atoms within the ring, wherein one of the metal-carbon bonds is a metal-carbene bond and the other is a metal-mono-anionic carbon bond.
Dependencies are inferred from the claim text.