Measurability Issues in the Radio-Frequency Characterization of Carbon Nanotubes

We discuss two measurability issues plaguing conventional on-wafer RF measurements with a network analyzer when dealing with quasi 1-D systems, such as carbon nanotubes. Those small-geometry devices typically exhibit an impedance on the order of h/(2e)2≈ 12.9 kΩ, resulting in a large intrinsic mismatch with the 50Ω reference impedance of the network… CONTINUE READING