CBSE Class 12-science Answered
Distinguish between an intrinsic
semiconductor and p-type semiconductor. Give reason, why, a p-type
semiconductor is electrically neutral, although nh>>ne?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
An intrinsic semiconductor is a pure semiconductor where as a p-type semiconductor is a semiconductor doped with trivalent impurity atoms like boron or gallium. An intrinsic semiconductor has same number of holes and electrons while in a p-type semiconductor the number of holes is greater than the number of electrons. Each hole is associated with a nearby negative-charged dopant ion, and thus semiconductor remains electrically neutral as a whole.
Answered by | 04 Jun, 2014, 03:23: PM
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