Patent ID: 7517558
Filing Date: 2009-04-14
Classification: B05B,B82Y,C01B,H01J

Abstract:
1. A method of positioning carbon nanotubes, comprising: creating a dusty plasma comprising a plurality of carbon nanotubes; positioning a mask between said dusty plasma and a desired target for said carbon nanotubes, said mask having a plurality of openings extending therethrough; extinguishing said dusty plasma; the carbon nanotubes falling out of the extinguished plasma and toward said mask, the mask patterning the falling carbon nanotubes to form a pattern of the carbon nanotubes on said target; wherein said plurality of openings correspond to a plurality of funnels; wherein each of said funnels comprises an inlet and an outlet, with the outlet being narrower than the inlet along at least one cross-section; and using parallel spaced-apart conductive plates to count nanotubes exiting the outlets of the funnels.