What is Depletion Region ?????
What is depletion region? Depletion means to reduction or decrease in quantity of something. For example, oil depletion refers to decrease in oil production from a particular oil well, region, or geographic area over a given time. Similarly, in semiconductor physics, the depletion region refers to a region where flow of charge carriers are decreased over a given time and finally results in empty mobile charge carriers or full of immobile charge carriers. P-type and n-type semiconductor The p-type semiconductor is formed by adding trivalent impurities to the pure or intrinsic semiconductor while n-type semiconductor is formed by adding pentavalent impurities to the pure or intrinsic semiconductor. In p-type semiconductors, holes are the majority charge carriers while free electrons are the minority charge carriers. On the other hand, in n-type semiconductors free electrons are the majority charge carriers while holes are th