The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 21, 2017

Filed:

Apr. 03, 2014
Applicants:

The Board of Trustees of the University of Illinois, Urbana, IL (US);

Northwestern University, Evanston, IL (US);

University of Miami, Miami, FL (US);

Inventors:

John A. Rogers, Champaign, IL (US);

William L. Wilson, Champaign, IL (US);

Sung Hun Jin, Urbana, IL (US);

Simon N. Dunham, Atlanta, GA (US);

Xu Xie, Urbana, IL (US);

Ahmad Islam, Beavercreek, OH (US);

Frank Du, Urbana, IL (US);

Yonggang Huang, Glencoe, IL (US);

Jizhou Song, Hangzhou, CN;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 21/02 (2006.01); C01B 31/02 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0048 (2013.01); C01B 31/026 (2013.01); H01L 21/02606 (2013.01); H01L 51/0004 (2013.01); C01B 2202/22 (2013.01); C01B 2202/34 (2013.01); H01L 51/0025 (2013.01);
Abstract

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.


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