RF response of single-walled carbon nanotubes.

Gomez-Rojas, Luis; Bhattacharyya, Somnath; Mendoza, Ernest; Cox, David C; Rosolen, J Mauricio; Silva, S Ravi P · Nano Lett · 2007

basic_science · Level V

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Abstract

We present for the first time an in-depth study of the RF response of a single-walled carbon nanotube (SWCNT) rope. Our novel electrode design, based on a tapered coplanar approach, allows for single tube measurements well into the GHz regime, minimizing substrate-related parasitics. From the analysis of the S-parameters, the ac transport mechanism in the range 30 kHz to 6 GHz is established. This work is an essential prerequisite for the fabrication of high-speed devices based on bundles of nanowires or low-dimensional structures.

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