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The forward current across the depletion layer of a PN junction diode consists of electrons from Ν...

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Electrical Engineering

The forward current across the depletion layer of a PN junctiondiode consists of electrons
from Ν to Ρ and holes injected from Ρ to N. The ratio of the holecurrent crossing
the junction to the total current is known as the injectionefficiency. Determine an
expression for the injection efficiency as a function of:
a) Na/Nd.
b) The ratio of the conductivity of Ρ to that of N.
Assume τp = Ο.1τn , and μp = 2.5μn .

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