Heteroatomic regioregular poly(3-substitutedthiophenes) as thin film conductors in diodes which are not light emitting or photovoltaic
US7321133B2 · kind B2 · utility
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Key dates
| Filing date | Nov 16, 2005 |
| Grant date | Jan 22, 2008 |
| Priority date | — |
| Expiry date | Jul 7, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Regio-regular polythiophenes used in diodes which are not light emitting or photovoltaic. High quality, processable thin film polymer films can be made. The thin film can have a thickness of about 50 nm to about one micron, and the conductive thin film can be applied by spin casting, drop casting, screening, ink-jetting, transfer or roll coating. The polythiophenes can be homopolymers or copolymers. The regio-regular poly(3-substitutedthiophene) can be derivatized so that the 3-substituent is an alkyl, aryl, or alkyl/aryl moiety with a heteroatom substitution in either the α- or beta-position of the 3-substituent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.