Polymer light-emitting electrochemical cells in surface cell configuration
AssigneeUniax Corporation
InventorGang Yu
Life of this patent
Estimating the term…
Abstract
Light-emitting electrochemical cells are produced with a surface cell configuration. In preferred embodiments the cells employ organic semiconducting polymers and particularly ion doped conjugated organic semiconducting polymers as active light-emitting materials.
Claims24
A light-emitting device comprising an anode and a cathode in electrical contact with a film of electroluminescent material, said electroluminescent material comprising a blend of a semiconducting, luminescent, conjugated, organic polymer and an ionic species source said film having two sides with both of the anode and cathode in contact with the same side of the film thereby providing a surface cell configuration.
A light-emitting electrochemical cell in a surface cell configuration comprising a substrate having a substrate surface, at least one anode and at least one cathode, present as an interdigitated pattern upon said substrate surface, and a film of electroluminescent material, itself comprising semiconducting, luminescent, conjugated organic polymer admixed with an ionic species source, in contact with said substrate surface and the interdigitated pattern of anode and cathode thereupon.
A method for generating a useful level of light comprising
- applying a voltage exceeding the turn-on voltage across the anode and cathode of a light-emitting device comprising an anode and a cathode in electrical contact with a film of electroluminescent material, said electroluminescent material comprising a blend of a semiconducting, luminescent, conjugated, organic polymer and an ionic species source said film having two sides with both of the anode and cathode in contact with the same side of the film thereby providing a surface cell configuration and detecting the light emitted from said device.
Dependencies are inferred from the claim text.