Hi Srest,

SCAPS is very sensitive to the input parameters, the convergence could be related to different parameters, usually dopant concentration or electron/hole mobilities values cause the convergence issues, try to check them one by one.

Good luck

Hello Srest Somay ,

The software solves the equation numerically with appropriate boundary and initial conditions. Therefore, it may happen that the input material parameters may possess extreme values causing non-convergence. You may need to recheck your input parameters and adjust the values to practically achievable ones. In most of the cases, a slight change in Nc, Nv, ND, NA, or Eg value eliminates the problem.