Question

OS
(vii) When silicon is doped with ......, it shows p-type semiconductivity.
(a) phosphorus (b) sulphur (c) gallium (d) aluminium
conductor
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vicemiconductorie​

Answer 1

Answer:

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Explanation:

Since p-type semiconductor has holes as majority charge carriers, thus for obtaining a p-type semiconductor we have to dope a pure silicon with acceptor elements of group III A like aluminium, boron, gallium etc.

And n-type semiconductor has electrons as majority charge carriers, thus for obtaining a n-type semiconductor silicon should be doped with electron rich donor elements of V A group like phosphorous, arsenic etc.