Patent ID: 11889758
Assignee: NORTH CAROLINA STATE UNIVERSITY
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 1:
2. The OLED device of claim 1, wherein the optional hole injection layer is present and comprises dipyrazino[2,3-f:2′,3′-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile (HAT-CN); 2,3,5,6-tetrafluoro-7,7,8,8-tetracyano-quinodimethane (F4-TCNQ); pyrazino[2,3-f] [1,10]phenanthroline-2,3-dicarbonitrile (PPDN); derivatives thereof; or combinations of thereof.