Doping agents for use in conjugated polymer extraction process of single walled carbon nanotubes
US10322937B2 · kind B2 · utility
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Key dates
| Filing date | Jun 2, 2017 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Jun 10, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2202/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for modulation of yield and semiconducting (sc)-purity of single-walled carbon nanotubes (SWCNTs) in a conjugated polymer extraction (CPE) process, the method comprising addition of an n-type dopant or a p-type dopant to the CPE process, wherein: the n-type dopant has a reduction potential of between −4.2 eV and −3.0 eV; and the p-type dopant has a reduction potential of between −6.0 eV and −4.5 eV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.