Patent ID: 9059419
Filing Date: 2015-06-16
Classification: H01L

Abstract:
1. An organic EL element, comprising: an anode; a cathode; an organic functional layer between the anode and the cathode, the organic functional layer including an organic material; and a metal oxide layer between the anode and the organic functional layer, the metal oxide layer including a nickel oxide that includes both nickel atoms with a valence of three and nickel atoms with a valence of two, wherein a difference in energy between an upper end of a valence band of the metal oxide layer and a Fermi level of the metal oxide layer is less than or equal to 0.8 eV, a value resulting from subtraction of an ionization potential of the organic functional layer from an ionization potential of the metal oxide layer is greater than or equal to 0 eV, at least part of the metal oxide layer has a crystal structure ANiO the metal element A in the crystal structure ANiO the nickel in the crystal structure ANiO