Patent ID: 11917841
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C | IPC H

Claim 16:
17. A light-emitting device comprising;
an anode, a cathode, and a light-emitting film disposed between the anode and the cathode, wherein the light-emitting film comprises a fluorine-containing onium salt, and quantum dots that do not comprise cadmium, lead, or a combination thereof,
wherein the fluorine-containing onium salt comprises a carbonium moiety, an oxonium moiety, a selenonium moiety, or a combination thereof, with a substituted or unsubstituted C1 to C30 hydrocarbon group, fluorine, and boron, and
wherein the light-emitting device further comprises an electron auxiliary layer between the light emitting layer and the cathode and wherein the electron auxiliary layer comprises nanoparticles of a metal oxide.