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:
Jan. 06, 2009
Filed:
Apr. 05, 2004
Bishun N. Khare, Fremont, CA (US);
Meyya Meyyappan, San Jose, CA (US);
Bishun N. Khare, Fremont, CA (US);
Meyya Meyyappan, San Jose, CA (US);
The United States of America as represented by the Administrator of the National Aeronautics and Space Administrator, Washington, DC (US);
SETI Institute, Mountain View, CA (US);
Abstract
Method and system for functionalizing a collection of carbon nanotubes (CNTs). A selected precursor gas (e.g., Hor For CH) is irradiated to provide a cold plasma of selected target species particles, such as atomic H or F, in a first chamber. The target species particles are directed toward an array of CNTs located in a second chamber while suppressing transport of ultraviolet radiation to the second chamber. A CNT array is functionalized with the target species particles, at or below room temperature, to a point of saturation, in an exposure time interval no longer than about 30 sec. *Discrimination against non-target species is provided by (i) use of a target species having a lifetime that is much greater than a lifetime of a non-target species and/or (2) use of an applied magnetic field to discriminate between charged particle trajectories for target species and for non-target species.