Method of making organic light emitting devices

US7910386B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Joseph John Shiang · Niskayuna, US
• Kevin Henry Janora · Schenectady, US
• Gautam Parthasarathy · Niskayuna, US
• James Anthony Cella · Clifton Park, US
• Kelly Scott Chichak · Clifton Park, US

Key dates

• Filing date: Dec 12, 2006
• Grant date: Mar 22, 2011
• Expiry date: Jan 19, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31511

Abstract

The present invention provides a method for the preparation of organic light-emitting devices comprising a bilayer structure made by forming a first film layer comprising an electroactive material and an INP precursor material, and exposing the first film layer to a radiation source under an inert atmosphere to generate an interpenetrating network polymer composition comprising the electroactive material. At least one additional layer is disposed on the reacted first film layer to complete the bilayer structure. The bilayer structure is comprised within an organic light-emitting device comprising standard features such as electrodes and optionally one or more additional layers serving as a bipolar emission layer, a hole injection layer, an electron injection layer, an electron transport layer, a hole transport layer, exciton-hole transporting layer, exciton-electron transporting layer, a hole transporting emission layer, or an electron transporting emission layer.