Electroluminescent devices
0 Assignments
0 Petitions
Accused Products
Abstract
An electroluminescent device comprising: a first charge carrier injecting layer for injecting positive charge carriers; a second charge carrier injecting layer for injecting negative charge carriers; and a light-emissive layer located between the charge carrier injecting layers and comprising a mixture of: a first component for accepting positive charge carriers from the first charge carrier injecting layer; a second component for accepting negative charge carriers from the second charge carrier injecting layer; and a third, organic light-emissive component for generating light as a result of combination of charge carriers from the first and second components; at least one of the first, second and third components forming a type II semiconductor interface with another of the first, second and third components.
23 Citations
73 Claims
-
1-63. -63. (canceled)
-
64. A method for forming an electroluminescent device, which method comprises:
-
forming a first charge carrier injecting layer for injecting charge carriers of a first polarity;
forming a semiconducting region over the first charge carrier injecting layer, the semiconducting region comprising a first semiconducting organic layer comprising a first semiconducting organic component adjacent to a second semiconducting organic layer comprising a second semiconducting organic component; and
forming a second charge carrier injecting layer over the semiconducting region for injecting charge carriers of the opposite polarity;
wherein the step of forming the semiconducting region comprises depositing the second semiconducting organic component over the first semiconducting organic layer from a solvent in which the first semiconducting organic component is soluble. - View Dependent Claims (65, 66, 67, 68, 69, 70, 71, 72)
-
-
73. A method for forming an electroluminescent device, which method comprises:
-
forming an anode electrode layer;
forming a layer comprising PEDOT;
PSS over the anode electrode layer;
forming a semiconducting region over the anode electrode layer, the semiconducting region comprising a first semiconducting organic layer comprising a first semiconducting organic component adjacent to a second semiconducting organic layer comprising a second semiconducting organic component and;
forming a cathode electrode layer over the semiconducting region;
wherein the step of forming the semiconducting region comprises depositing the second semiconducting organic component over the first semiconducting organic layer from a solvent in which the first semiconducting organic component is soluble.
-
Specification