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Purification of Carbon Nanotubes Via Selective Heating

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
The present invention provides methods for purifying a layer of carbon nanotubes comprising providing a precursor layer of substantially aligned carbon nanotubes supported by a substrate, wherein the precursor layer comprises a mixture of first carbon nanotubes and second carbon nanotubes; selectively heating the first carbon nanotubes; and separating the first carbon nanotubes from the second carbon nanotubes, thereby generating a purified layer of carbon nanotubes. Devices benefiting from enhanced electrical properties enabled by the purified layer of carbon nanotubes are also described.
ROGERS, John A. (Champaign, IL), WILSON, William L. (Champaign, IL), JIN, Sung Hun (Urbana, IL), DUNHAM, Simon N. (Atlanta, GA), XIE, Xu (Urbana, IL), ISLAM, Ahmed (Beavercreek, OH), DU, Frank (Urbana, IL), HUANG, Yonggang (Glencoe, IL), SONG, Jizhou (Hangzhou, CN)
15/ 354,951
November 17, 2016
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support awarded by the following agency: U.S. Department of Energy Grant DEFG02-91 ER45439. The United States government has certain rights in the invention.