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.
Patent No.:
Date of Patent:
Mar. 04, 2008
Filed:
Nov. 27, 2000
Richard E. Smalley, Houston, TX (US);
Daniel T. Colbert, Houston, TX (US);
Ting Guo, San Diego, CA (US);
Andrew G. Rinzler, Houston, TX (US);
Pavel Nikolaev, Houston, TX (US);
Andreas Thess, Houston, TX (US);
Richard E. Smalley, Houston, TX (US);
Daniel T. Colbert, Houston, TX (US);
Ting Guo, San Diego, CA (US);
Andrew G. Rinzler, Houston, TX (US);
Pavel Nikolaev, Houston, TX (US);
Andreas Thess, Houston, TX (US);
Rice University, Houston, TX (US);
Abstract
This invention provides a method of making single-wall carbon nanotubes by laser vaporizing a mixture of carbon and one or more Group VIII transition metals. Single-wall carbon nanotubes preferentially form in the vapor and the one or more Group VIII transition metals catalyzed growth of the single-wall carbon nanotubes. In one embodiment of the invention, one or more single-wall carbon nanotubes are fixed in a high temperature zone so that the one or more Group VIII transition metals catalyze further growth of the single-wall carbon nanotube that is maintained in the high temperature zone. In another embodiment, two separate laser pulses are utilized with the second pulse timed to be absorbed by the vapor created by the first pulse.