Device comprising positive hole injection transport layer, method for producing the same and ink for forming positive hole injection transport layer
US8778233B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2012 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Apr 30, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer comprises a transition metal-containing nanoparticle containing at least a transition metal compound including a transition metal oxide, a transition metal and a protecting agent, or at least the transition metal compound including the transition metal oxide, and the protecting agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.