Electrically conductive polymer dispersion and its application in hole injection layer of organic light emitting diodes

• Main Authors: FENG, JIANG, YAN, JING-JING, TREFONAS, PETER, TANG, ZHENG-MING, CHEE, MOO-KEUN, TAI, XIANG-YANG
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2016
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; DYES; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention provides an electrically conductive polymer dispersion comprising at least one poly (3,4-ethylenedioxytiophene) and at least one lignosulfonate. The present invention further provides a process of preparing the electrically conductive polymer dispersion comprising the step of oxidatively polymerizing 3,4-ethylenedioxytiophene monomer in liquid comprising at least one lignosulfonate.