Question

The potential barrier existing across an unbiased p-n junction is 0.2 volt. What minimum kinetic ene
should have to diffuse from the p-side to the n-side if -
(a)
The junction is unbiased
(6)
The junction is forward biased at 0.1 volt
(c)
The
The junction is reverse-biased at 0.1 volt.
​

Answer 1

KE= Potential difference × e
(a) KE = 0.2e
(b) KE + 0.1e = 0.2e
KE = 0.1e
(c) KE - 0.1e = 0.2e
KE = 0.3e