Sulfonation of conducting polymers and OLED, photovoltaic, and ESD devices
US8946378B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 15, 2013 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | May 27, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Conducting polymer systems for hole injection or transport layer applications including a composition comprising: a water soluble or water dispersible regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone. The polythiophene can be water soluble, water dispersible, or water swellable. They can be self-doped. The organic substituent can be an alkoxy substituent, or an alkyl substituent. OLED, PLED, SMOLED, PV, and ESD applications can be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.