Patent ID: 7581645
Filing Date: 2009-09-01
Classification: B82Y,C01B,C03C,D01F,Y10S

Abstract:
1. A method for manufacturing carbon nanotubes with a desired length, the method comprising the steps of: providing an array of carbon nanotubes; placing a mask, having at least an opening defined therein, on the array of carbon nanotubes, with at least one portion of the array of carbon nanotubes being at least partially exposed through a corresponding opening of the mask; forming a protective film on at least one exposed portion of the array of carbon nanotubes; removing the mask from the array of the carbon nanotubes, with the carbon nanotubes being compartmentalized into at least a first portion covered by the protective film and at least an uncovered second portion; separating the first portion from the second portion of the array of the carbon nanotubes using a chemical method, thereby obtaining at least a carbon nanotube segment with the protective film thereon; and removing the protective film from the carbon nanotube segment.