Patent ID: 11957046
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  H | IPC H

Claim 25:
26. An electroluminescent device, comprising
a first electrode and a second electrode facing each other;
an emission layer disposed between the first electrode and the second electrode and comprising
a plurality of quantum dots, and
a first hole transporting material comprising an unsubstituted C4 to C20 alkyl group attached to a backbone structure, wherein the first hole transporting material is a non-polymeric compound;
a hole transport layer disposed between the emission layer and the first electrode and comprising a second hole transporting material;
an electron transport layer disposed between the emission layer and the second electrode;
wherein the first hole transporting material is a fluorenyl amine compound and the unsubstituted C4 to C20 alkyl group is attached to a fluorenyl group; and
wherein the plurality of quantum dots further comprises a ligand and the plurality of quantum dots does not comprise silicon.