Organic photoelectronic element having hole transport layer containing fluorinated polymer and organic semiconductor material

Abstract

To provide an organic photoelectronic element excellent in light emitting characteristics and long-term reliability. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, a hole transport layer disposed between the light emitting layer and the anode, and an electron blocking layer provided in contact with the light emitting layer and the hole transport layer between the light emitting layer and the hole transport layer, wherein the hole transport layer contains a fluorinated polymer and an organic semiconductor material, and has a refractive index in the wavelength range of from 450 nm to 800 nm, of at most 1.60, the hole transport layer and the electron blocking layer are made of different materials from each other, and the LUMO energy level of the electron blocking layer is higher than the LUMO energy level of the light emitting layer and the LUMO energy level of the hole transfer layer.

Dependencies are inferred from the claim text.