The energy band diagram or i-v characteristic curve of mosfet

Thank you for making a program like devsim.
I am a student studying semiconductor device simulation with devsim.
I’ve looked at the examples provided by devsim, but I don’t have the example I want, so I ask a question.

Is there an example where you can see the energy band diagram or i-v characteristic curve of mosfet?
Can you make an example like that if it doesn’t exist?
I’m asking because I think it’s too difficult to make a code myself.

Please let me know if you have Pn junction as well as mosfet.

Thank you for your interest in the software. I think some of the recent discussions address your questions. Please let us know if you have any additional questions.