Multilayer organic device

US9054317B2 · kind B2 · utility

Assignee

• THORN Lighting Ltd. · GB

Inventors

• Andrew Monkman · Durham, GB
• Hameed Al-Attar · Durham, GB

Key dates

• Filing date: Oct 5, 2010
• Grant date: Jun 9, 2015
• Expiry date: Nov 15, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/10

Abstract

In a multilayer organic device (10) comprising a substrate bearing an anode (12) and a cathode (20), wherein located between the anode (12) and the cathode (20) is at least a first layer (16) comprising a first organic semiconductor material; and a second layer (18) over the first layer (16) comprising a second organic semiconductor material; the first organic semiconductor material is a polymer and the second organic material is a polymer or an oligomer, the average molecular weight of the first organic semiconductor material being higher than the average molecular weight of the second organic semiconductor material.