Patent ID: 6563262
Filing Date: 2003-05-13
Classification: H01L

Abstract:
A light-emitting diode comprising:(a) a hole-injecting anode layer; (b) an electron-injecting cathode layer; and, (c) an emissive layer; wherein: (i) said emissive layer is interposed between said anode layer and said cathode layer; (ii) said emissive layer comprises an electroluminescent, semiconducting, organic material; (iii) said cathode layer comprises a layer of metal oxide having a thickness of from about 5 to about 200 Ã¥; and, (iv) said metal oxide is selected from the group consisting of alkali metal oxides, alkaline earth metal oxides, lanthanide metal oxides, and combinations thereof, wherein the alkali metal oxides and alkaline earth metal oxides are selected from mixed oxides, non-stoichiometric oxides, and combinations thereof.