Patent ID: 8183164
Filing Date: 2012-05-22
Classification: B82Y,H01L

Abstract:
1. A method of synthesizing semiconducting vertically-aligned single-walled carbon nanotubes comprising: providing a semiconductor wafer containing a catalyst coating on its surface; providing an iron catalyst on said catalyst-coated wafer; placing said wafer in a plasma-enhanced chemical vapor deposition furnace maintained at a pressure between about 25 to 35 mTorr and at a temperature of about between about 745 to 755° C., said furnace including a source of carbon gas; and removing said wafer from said furnace after about 2 to 4 minutes; wherein said synthesized nanotubes comprise at least 80% semiconducting nanotubes; wherein said carbon gas comprises C forming an FET device from the synthesized semiconducting vertically-aligned single-walled carbon nanotubes comprising depositing said nanotubes over preformed source and drain electrodes supported on said wafer.