Layer configuration with improved stability to sunlight exposure
US7820078B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 23, 2008 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Oct 23, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/922
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are a light-emitting diode, a photovoltaic device, a transistor, and an electroluminescent device, each comprising a layer disposed on a support, the layer comprising a [A] composition exclusive of hydroquinone comprising at least one polymer comprising (3,4-dialkoxythiophene) monomer units, a polyanion, at least one polyhydroxy group-containing aromatic compound exclusive of sulfo groups, at least one amino-compound or heterocyclic compound with at least one ring nitrogen atom, and at least one compound selected from the group consisting of polyhydroxy- and/or carboxy group or amide or lactam group containing aliphatic compounds and aprotic compounds with a dielectric constant ≧15.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.