Method of selective separation of semiconducting carbon nanotubes, dispersion of semiconducting carbon nanotubes, and electronic device including carbon nanotubes separated by using the method

US9502152B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9502152-B2
Application numberUS-201113282783-A
CountryUS
Kind codeB2
Filing dateOct 27, 2011
Priority dateNov 1, 2010
Publication dateNov 22, 2016
Grant dateNov 22, 2016

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Abstract

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According to example embodiments, a method includes dispersing carbon nanotubes in a mixed solution containing a solvent, the carbon nanotubes, and a dispersant, the carbon nanotubes including semiconducting carbon nanotubes, the dispersant comprising a polythiophene derivative including a thiophene ring and a hydrocarbon sidechain linked to the thiophene ring. The hydrocarbon sidechain includes an alkyl group containing a carbon number of 7 or greater. The hydrocarbon sidechain may be regioregularly arranged, and the semiconducting carbon nanotubes are selectively separated from the mixed solution. An electronic device includes semiconducting carbon nanotubes and the foregoing described polythiophene derivative.

First claim

Opening claim text (preview).

What is claimed is: 1. A method comprising: dispersing carbon nanotubes in a mixed solution containing a solvent, the carbon nanotubes, and a dispersant, the carbon nanotubes including semiconducting carbon nanotubes, the dispersant comprising a polythiophene derivative including a thiophene ring and a hydrocarbon sidechain linked to the thiophene ring, the hydrocarbon sidechain including an alkyl group containing a carbon number of 8 or greater, and the hydrocarbon sidechain…

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What does patent US9502152B2 cover?
According to example embodiments, a method includes dispersing carbon nanotubes in a mixed solution containing a solvent, the carbon nanotubes, and a dispersant, the carbon nanotubes including semiconducting carbon nanotubes, the dispersant comprising a polythiophene derivative including a thiophene ring and a hydrocarbon sidechain linked to the thiophene ring. The hydrocarbon sidechain include…
Who is the assignee on this patent?
Park Young-Jun, Kim Jong-Min, Lee Hang-Woo, and 3 more
What technology area does this patent fall under?
Primary CPC classification C08K3/04. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Nov 22 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).