I have gone through this(With .py file) but have not been able to replicate the provided result. It is - Undoped for both the Channel region and the source and drain Region. I am enclosing the "N-I-N" doping profile with a similar kind of device structure.
I probably forgot to add the part with the doping in the script I had attached.
Back in the days, the AtomicCompensationCharge approach was not available. I therefore only used the charge-Keyword in the calculator-object. The lack of any compensation charges was probably the reason for the observed behavior back in 2014.
Thank you for your kind response। I have attached my script as well for similar kind of devices structure।
Just for your kind information -I have used poison solver :Conjugate gradient
Top and button -Neuman boundary conditions
Front and back -periodic
Side by side -Dirichlet
Slater koster model ।
Kindly advise if there any changes are required to replicate your attached results।
I have doped using -Miscellaneous section -Doping just above the spatial region of current version of the software।
Thank you once again।
You can modify my device structure or whatever feasible for you, you can revert me back।