Question:
The potential barrier existing across an unbiased p-n junction is $0.2$ volt. What minimum kinetic energy a hole should have to diffuse from the p-side to the $n$-side if
(a) the junction is unbiased,
(b) the junction is forward biased at $0.1$ volt and
(c) the junction is reverse-biased at $0.1$ volt?
Solution:
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