Patent ID: 8236389
Filing Date: 2012-08-07
Classification: B01J,B82Y,C01B,C23C,Y10S

Abstract:
1. A method for making a carbon nanotube film, the method comprising the following steps of: (a) supplying a substrate having a growing surface; (b) forming at least one strip-shaped catalyst film on the growing surface of the substrate, a width of the strip-shaped catalyst film ranging from approximately 1 micrometer to 20 micrometers; (c) growing at least one strip-shaped carbon nanotube array on the substrate using a chemical vapor deposition method, wherein a growing direction of the at least one strip-shaped carbon nanotube array is perpendicular to the growing surface; (d) causing the at least one strip-shaped carbon nanotube array to fall down on the growing surface along a direction parallel to a surface of the substrate, thus forming the carbon nanotube film adhered on the surface of the substrate; (e1) coating a layer of photoresist on the strip-shaped catalyst film and the strip-shaped carbon nanotube array fell down on the growing surface of the substrate; (e2) removing the photoresist on the strip-shaped catalyst film through an exposure method or a contrast method; (e3) removing the strip-shaped catalyst film by a plasma etching method; and (e4) removing the photoresist on the residual strip-shaped carbon nanotube array that has fallen down on the growing surface of the substrate.