In a p-n junction, the depletion region is

Question:

In a p-n junction, the depletion region is $400 \mathrm{~nm}$ wide and an electric field of $5 \times 10^{5} \mathrm{~V} / \mathrm{m}$ exists in it.

(a) Find the height of the potential barrier.

(b) What should be the minimum kinetic energy of a conduction electron which can diffuse from the n-side to the p-side?

Solution:

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