rasmita sahoo @ on
why the saturation current increases with decrease in diameter of the CNT
I had done the simulation using your tool “CNTFET Lab” available at nanohub. I have done the simulations for different diameter of the CNT (by changing the chirality) used in the channel. The simulation result shows that the saturation drain current increases with decrease in the diameter of the CNT. In conventional MOSFET the trend is just opposite. So I am in doubt why it is coming like this? Is it correct? If yes what is the cause?
Further I have also checked the same for coaxial CNTFET using the tool “FETToy” which is also available at nanohub. For this case the drain current increases with increase in diameter.
Please clarify this by giving your valuable guidance