Carbon nanotube-based device and method for making the same

Details Carbon nanotube-based device and method for making the same Carbon nanotube-based device and method for making the same

2006-12-12

2006-12-12

Cooke, Colleen P. (Department: 1754)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C423S447300, C423S447100, C977S742000, C977S840000, C977S842000

Reexamination Certificate

active

07147831

ABSTRACT:
A carbon nanotube-based device includes a substrate (10); a catalyst layer (13) disposed on the substrate, the catalyst layer comprising a number of nano-sized catalyst particles (131), a size of the catalyst particles decreasing along a given direction; and an array of aligned carbon nanotubes (14) extending from the catalyst layer in an arc toward the given direction. A method for making the carbon nanotube based device includes the steps of: (1) providing a substrate; (2) forming a catalyst layer on the substrate, a thickness of the catalyst layer decreasing along a given direction; (3) annealing the treated substrate in air to form nano-sized catalyst particles; (4) introducing a carbon source gas; and (5) forming an array of carbon nanotubes extending from the catalyst particles using a chemical vapor deposition method.

REFERENCES:
patent: 6232706 (2001-05-01), Dai et al.
patent: 6758957 (2004-07-01), Zhou et al.
patent: 6764874 (2004-07-01), Zhang et al.
patent: 7060356 (2006-06-01), Liu et al.
Yao, B. D., and N. Wang, “Carbon Nanotube Arrays Prepared by MWCVD,” 2001, American Chemical Society, Journal of Physical Chemistry, vol. 105, pp. 11395-11398.
Nature vol. 416 Apr. 4, 2002 p. 495 “Organized assembly of carbon nanotubes”.
Applied physics letters vol. 79, No. 19 Nov. 5, 2001 p. 3155 “Electric field directed growth of aligned single-walled carbon nanotubes”.
Science vol. 283 Jan. 22, 1999 p. 512 “Self-oriented regular arrays of carbon nanotube s and their field emission properties”.

Affiliated with

Also associated with

Rating

Carbon nanotube-based device and method for making the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbon nanotube-based device and method for making the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon nanotube-based device and method for making the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3663813