Questions
A perfect crystal of silicon (fig) is doped with some elements as given in the options. Which of these options shows n -type semiconductors?
detailed solution
Correct option is A
When group l5 elements are doped into a perfect crystal of Si, it leads to the formation of n -type semiconductor.Here, in (a) As (group 15, period 3) is doped to perfect Si crystal and in (c) P (group 15, period 2) is doped to perfect Si-crystal.Similar Questions
Match the items given in Column I with the items given in Column II.
Column I | Column II | ||
A. | Mg in solid state | 1. | p -type semiconductor |
B. | MgCl2 in molten state | 2. | n-type semiconductor |
C. | Silicon with phosphorus | 3. | Electrolytic conductor |
D. | Germanium with boron | 4. | Electronic conductor |
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