Patent ID: 11930654
Assignee: KYULUX, INC.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 5:
6. The method for improving light-emission according to claim 1, wherein the at least one perovskite layer consists of a first perovskite layer and a second perovskite layer, and the organic light-emitting device has the anode, the light-emitting layer, the cathode, the first perovskite layer between the anode and the light-emitting layer, and the second perovskite layer between the light-emitting layer and the cathode, and the method comprises:
forming an anode,
forming the first perovskite layer so that a thickness of the first perovskite layer is 1000 nm or more, the layer comprising a perovskite-type compound represented by the following general formula (4):

A3BX3  (4)

wherein A3 represents an organic cation, B represents a divalent metal ion, X represents a halogen ion, and three X's may be the same as or different from each other, and
forming a light-emitting layer,
forming the second perovskite layer so that a thickness of the second perovskite layer is 1000 nm or more and the total thickness of the first perovskite layer and the second perovskite layer is 3000 nm or more, the layer comprising a perovskite-type compound represented by the following general formula (4):

A3BX3  (4)

wherein A3 represents an organic cation, B represents a divalent metal ion, X represents a halogen ion, and three X's may be the same as or different from each other, and
forming a cathode.