In a semiconductor diode,the reverse biased c | vedclass

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(A) In a semiconductor diode under reverse bias,the majority charge carriers are pushed away from the junction,creating a depletion region. However,a

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Thermal excitations only

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(A) In a semiconductor diode under reverse bias,the majority charge carriers are pushed away from the junction,creating a depletion region. However,a small current flows due to the minority charge carriers. These minority charge carriers are generated by the thermal breaking of covalent bonds within the crystal lattice. This process is known as thermal excitation. Since the number of thermally generated electron-hole pairs depends solely on the temperature,the reverse saturation current is primarily due to thermal excitations. Therefore,the correct option is $(a)$.

In a semiconductor diode,the reverse biased current is due to the drift of free electrons and holes caused by:

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