Carbon Nanotube FET Mixers and High Frequency Applications

ORAL

Abstract

We have investigated the high frequency electrical properties of single-walled carbon nanotube field effect transistors by operating the devices as microwave mixers. The mixing current amplitude depends linearly on the transconductance and quadratically on the applied AC voltage. On devices with insulating substrates, the response is approximately independent of frequency up to 40 GHz. Two applications of these high frequency-operation carbon nanotube FET mixers will be discussed: the detection of terahertz electrical pulses and nanoscale dielectric spectroscopy of liquids.

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Authors

  • Zhaohui Zhong

    Laboratory of Atomic and Solid State Physics, Cornell University, Center for Nanoscale Systems, Cornell University, Ithaca, 14850

  • Xinjian Zhou

    Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, 14850, Laboratory of Atomic and Solid-State Physics, Cornell University

  • P. L. McEuen

    Laboratory of Atomic and Solid State Physics, Cornell University, Cornell University, LASSP, Cornell University, Cornell Center for Materials Research, Laboratory of Atomic and Solid-State Physics, Cornell University, Center for Nanoscale Systems; Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, 14850, Physics Dept., Cornell University, Ithaca, NY 14853