Questions and Answers: Closed Question
Status: Closed
George Pau @ 01:11 PM on 05 Jun, 2009
analytical expression for the poisson solve
May I know what is the rational behind the use of the analytical expression given in the answer I asked about the convergence criteria. In particular, is the analytical formula based on the semiclassical approximation? If that is the case, for a 3D problem, shouldn’t the expression be more like Nc*F_{1/2}(E_f)?
Thanks, George
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SungGeun Kim @ 08:38 PM on 06 Jun, 2009
Thanks for the question, George.We will answer your question shortly.
SungGeun
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Mathieu Luisier @ 12:24 AM on 07 Jun, 2009
A semi-classical expression for the carrier density is used in the inner loops of the Poisson equation to improve and accelerate its convergence. In 3D, the approximation you mention (n=NC*F_{1/2)(Ef)) would be better than that proposed in my previous post, but it does not allow to find a simple analytical expression for Ef. That’s why it is not used.
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