Support Options

Submit a Support Ticket

Home Questions and Answers Why negative carrier densities

Questions and Answers

0 Like

Francisco Reyes

Why negative carrier densities


I’m trying to solve de DD model using n, p and V as main variables and FE method to solve the equations. I’m using Gummel’s iterative method to simulate a 2D PN junction but I’m getting negative densities at equlibrium in the first iteration even when the initial guest is pretty good. I think this is a common problem but i don’t understand why this happen and i would like to know if there is a “easy” way to avoid it.

Report abuse

Your Answer

Please login to answer the question.

0 Responses

No answers to this question yet. Be the first to answer this question.

Did you know you can earn points for providing good answers?
Learn more about how points are awarded., a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.