Patent Number: 7,087,207

Title: Method for forming an array of single-wall carbon nanotubes in an electric field and compositions thereof

Abstract: This invention relates generally to a forming an array of single-wall carbon nanotubes (SWNT) in an electric field and compositions thereof. In one embodiment, a purified bucky paper of single-wall carbon nanotubes is used as the starting material. Upon oxidative treatment of the bucky paper surface, many tube and/or rope ends protrude up from the surface of the paper. Disposing the resulting bucky paper in an electric field results in the protruding tubes and or ropes of single-wall carbon nanotubes aligning in a direction substantially perpendicular to the paper surface. These tubes tend to coalesce to form a molecular array. In another embodiment, a molecular array of SWNTs can be made by "combing" the purified bucky paper starting material with a sharp microscopic tip to align the nanotubes.

Inventors: Smalley; Richard E. (Houston, TX), Colbert; Daniel T. (Houston, TX), Dai; Hongjie (Sunnyvale, CA), Liu; Jie (Chapel Hill, NC), Rinzler; Andrew G. (Newberry, FL), Hafner; Jason H. (Houston, TX), Smith; Kenneth A. (Katy, TX), Guo; Ting (Davis, CA), Nikolaev; Pavel (Houston, TX), Thess; Andreas (Kusterdingen, DE)

Assignee: William Marsh Rice University

International Classification: D01F 9/12 (20060101)

Expiration Date: 8/08/02018