Space Charge Width & Maximum Electric field in a pn junction calculator

This CalcTown calculator calculates the space charge width & maximum electric field of a pn Junction.

*Please note that Vapplied is positive for reverse applied voltage and negative for forward biased volated.

*Please refer to the first calculator given in the links to calculate the in-built potential barrier (Vbi)

In-built Potential Barrier Height (Vbi)

Applied voltage (Vapplied)

Relative Permittivity of the semiconductor

Donor dopant concentration (Nd)

×10¹⁵ cm^-3

Acceptor Dopant Concentration (Na)

×10¹⁵ cm^-3

Space Charge Width (W)

Maximum Electric (Emax)

V/cm

where

= Permittivity of the semiconductor material

In the table below, relative permittivity of some materials is given.