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Question
A perfect crystal of silicon (Figure) is doped with some elements as given in the options. Which of these options show n-type semiconductors?
Solution
Explanation:
When group 15 elements are doped into a perfect crystal, it leads to the formation of n-type semiconductor. Here, in as (group 15, period 3) is doped to perfect Si-crystal and in as (group 15, period 2) is doped to perfect Si-crystal.
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