Magnetic organic light emitting device and method for modulating electroluminescence intensity

Abstract

This invention pertains to a spintronic device for emitting light and to a method for its operation. The device includes a cathode electrode capable of producing spin-polarized charge carrier electrons under the influence of an electric field; an anode electrode spaced from the cathode for producing spin-polarized charge carrier holes; an intermediate medium disposed between the electrodes into which the carriers are injected under the influence of an electric field and which serves as a transport medium for the carriers wherein the carriers are transported and within which the carriers react and form excitons; and a circuit between the electrodes for imparting en electric field which serves as the motive force for the carriers. The method includes the steps of producing spin-polarized electrons, producing spin-polarized holes, passing the electrons and the holes through a transport medium under influence of an electric field whereby the electrons and the holes, being oppositely charged, combine to produce excitons which produce light, and collecting the light so produced.

Dependencies are inferred from the claim text.