SUBSTRATE BEARING AN ELECTRODE, ORGANIC LIGHT-EMITTING DEVICE INCORPORATING IT, AND ITS MANUFACTURE

• Main Authors: JOUSSE DIDIER, TCHAKAROV SVETOSLAV, BESSON SOPHIE, ROHAUT NATHALIE
• Format: Patent
• Language: English
• Published: 06.01.2011
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SEMICONDUCTOR DEVICES; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

A substrate bearing, on one main face, a composite electrode, which includes an electroconductive network which is a layer formed from strands made of an electroconductive material based on a metal and/or a metal oxide, and having a light transmission of at least 60% at 550 nm, the space between the strands of the network being filled by an electroconductive fill material. The composite electrode also includes an electroconductive coating, which may or may not be different from the fill material, covering the electroconductive network, and in electrical connection with the strands, having a thickness greater than or equal to 40 nm, of resistivity 1 less than 105 ·cm and greater than the resistivity of the network, the coating forming a smoothed outer surface of the electrode. The composite electrode additionally has a sheet resistance less than or equal to 10 / .