Abstract
The microwave transmission properties of suspended, quasi-metallic individual single-walled carbon nanotubes (SWCNTs) with a bottom gate field-effect transistor (FET) configuration have been investigated up to 10 GHz by standard two-port S-parameter measurements under different gate bias voltages. A tapered coplanar waveguide (CPW) transmission-line test fixture is designed to overcome the parasitic and mismatch issues. An open-through de-embedding algorithm has been applied to extract the intrinsic properties of SWCNTs. And an equivalent circuit model has been proposed to fit the extracted measurement data as a function of the bottom gate bias voltage, facilitating the applications of CNTs into high-frequency nanocircuits. Moreover, the properties of our transistor device are found to change after a period of time.
Original language | English (US) |
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Pages (from-to) | 2610-2614 |
Number of pages | 5 |
Journal | Microwave and Optical Technology Letters |
Volume | 59 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2017 |
Keywords
- bottom gate FET
- de-embedding
- equivalent circuit model
- individual SWCNT
- suspended
- tapered transmission-line
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering