Passive electrical properties of multi-walled carbon nanotubes up to 0.1 THz

Seong Chan Jun, X. M.H. Huang, Sungwon Moon, H. Jin Kim, James Hone, Y. W. Jin, J. M. Kim

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Abstract

Metallic carbon nanotubes (CNTs) are promising as transmission lines or interconnects in radio-frequency nanoelectric circuits. This paper presents passive network properties of individual multi-walled carbon nanotubes (MWNTs) up to 110 GHz measured at room temperature. From the S-parameter data, frequency-dependent electric properties of the MWNT were extracted using an equivalent R-L-C circuit model. The ac impedance of the MWNT decreases significantly with increasing frequency, as predicted by earlier theoretical work. In particular, the equivalent resistance decreases a few hundred times. Our findings show that MWNTs can carry high-frequency currents much better than dc.

Original languageEnglish
Article number265
JournalNew Journal of Physics
Volume9
DOIs
Publication statusPublished - 2007 Aug 14

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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