Hole injection/transport layer compositions and devices
US7569159B2 · kind B2 · utility
15Cited by
14References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2006 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jan 15, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Compositions for use in HIL/HTL applications include intrinsically conductive polymer, planarizing agent, and dopant, which are soluble in non-aqueous solvents. Block copolymers of regioregular alkyl/alkoxy- and aryl-substituted polythiophenes can be used. The compositions can be formed into thin films. Excellent efficiency and lifetime stability can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.