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Classify each of the following as being either a p-type or a n-type semiconductor: (i)Ge doped with In

1.20   Classify each of the following as being either a p-type or a n-type semiconductor:

               (i) Ge doped with In.

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We know that Ge is a group 14 element (having 4 valence electrons) and In is a group 13 element  (having 3 valence electrons).

So this is a p-type semiconductor.

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