Semiconductor solver solves Poisson’s eqaution in 2D (with cylindrical and cartesian geometry) to calculate equilibrium potential inside semiconductor.

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input_solver - defines mesh and solves poisson eqaution

Define top and bottom boundary conditions as [contact_type,value] where value is potential offset for ohmic and schottky contacts and electric field for normal derivative boundary conditions. Boundary conditions are described for each section. Section is the region between two nodes defined.