Question

Derive and sketch the electrical field E of doping concentrations And(x) are given by,

(a) Nd (x) = ax, where a is a constant;
(b) Nd (x) = Noe-ax ;
(c) Nd (x) = 1016 – 1019x (cm-1), where x is distance from the slab surface and end at x = L
(d) In part (c), calculate Emax at x = 0 and the thickness L of the semiconductor lab if Nd reduce to 50% of the surface value.

Answer 1

Answer:

c, 0.5mm

Explanation:

The step by step derivation of formula required for part 'a' and 'b' are seen in the attached Files please kindly go through it.

You will also see steps to how the answer for part 'c' is gotten.