Electrode for an organic light-emitting device, acid etching thereof and also organic light-emitting device incorporating it
US9099673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2007 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Oct 28, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/86
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The subject of the present invention is a multilayer electrode (3), acid etching thereof and also organic light-emitting devices incorporating it. The multilayer electrode, known as a lower electrode for an organic light-emitting device (10), successively comprises: —a contact layer (31) based on a metal oxide and/or a metal nitride; a functional metallic layer (32) having intrinsic electrical conductivity properties; a thin blocking layer (32) directly on the functional layer, the layer comprising a metallic layer having a thickness less than or equal to 5 nm and/or a layer with a thickness less than or equal to 10 nm, which is based on a substoichiometric metal oxide, substoichiometric metal oxynitride or substoichiometric metal nitride; a coating comprising an overlayer based on a metal oxide (34) for adapting the work function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.