Methods for sorting nanotubes by electronic type

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10569197
APP PUB NO 20190201815A1
SERIAL NO

16296501

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Abstract

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A method of separating carbon nanotubes by electronic type includes centrifuging a carbon nanotube composition in contact with a first fluid medium comprising a first density gradient; and separating the carbon nanotube composition into two or more separation fractions. The carbon nanotube composition comprises two or more non-ionic amphiphilic surface active components and a carbon nanotube population comprising double-walled carbon nanotubes having a semiconducting outer wall (s-DWCNTs), and double-walled carbon nanotubes having a metallic outer wall (m-DWCNTs). The two or more separation fractions comprise a first separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of s-DWCNTs than the carbon nanotube population, and a second separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of m-DWCNTs than the carbon nanotube population.

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Patent Owner(s)

  • NORTHWESTERN UNIVERSITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Green, Alexander A Boston, US 24 156
Hersam, Mark C Wilmette, US 107 459

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