Yu-Ming Lin et al 2007 Nanotechnology 18 295202 doi:10.1088/0957-4484/18/29/295202
Yu-Ming Lin, James C Tsang, Marcus Freitag and Phaedon Avouris
Show affiliationsWe have studied suspended nanotube devices to investigate directly the impact of oxide substrate on the properties of nanotubes. The 1/f noise amplitude is reduced by about one order of magnitude when the nanotube is suspended, suggesting that the 1/f noise is dominated by the trapped charges in the oxide. We have also utilized the enhanced Raman signal intensity in suspended nanotubes to correlate electrical transport properties with Raman spectroscopy on the same individual nanotube, yielding close agreement in the tube diameter determined from both types of experiments.
Issue 29 (25 July 2007)
Received 17 April 2007, in final form 25 May 2007
Published 20 June 2007
Yu-Ming Lin et al 2007 Nanotechnology 18 295202
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