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Organic electroluminescent device comprising two-dimensional emissive layer

專利號
US12052918B2
公開日期
2024-07-30
申請人
The Regents of the University of Michigan
發(fā)明人
Stephen R. Forrest; Jongchan Kim; Siwei Zhang
IPC分類
H10K85/60; H10K50/11; H10K50/15; H10K50/16
技術領域
in,mws2,layer,monolayer,organic,ws2,emissive,transition,nm,doi.org
地域： MI MI Ann Arbor

摘要

An organic light emitting device comprises an anode and a cathode, at least one organic layer configured between the anode and the cathode, and at least one two-dimensional emissive layer configured between the anode and the cathode. A method of fabricating an organic light emitting device is also disclosed.

說明書

In one aspect, Ar101 to Ar9 is independently selected from the group consisting of:

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wherein k is an integer from 1 to 20; X101 to X108 is C (including CH) or N; Z101 is NAr1, O, or S; Ar1 has the same group defined above.

Examples of metal complexes used in HIL or HTL include, but are not limited to the following general formula:

embedded image
wherein Met is a metal, which can have an atomic weight greater than 40; (Y101-Y102) is a bidentate ligand, Y101 and Y102 are independently selected from C, N, O, P, and S; L101 is an ancillary ligand; k′ is an integer value from 1 to the maximum number of ligands that may be attached to the metal; and k′+k″ is the maximum number of ligands that may be attached to the metal.

In one aspect, (Y101-Y102) is a 2-phenylpyridine derivative. In another aspect, (Y101-Y102) is a carbene ligand. In another aspect, Met is selected from Ir, Pt, Os, and Zn. In a further aspect, the metal complex has a smallest oxidation potential in solution vs. Fc+/Fc couple less than about 0.6 V.

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