Q.

An n-type semiconductor can be formed by doping Si or Ge with 
 

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a

IV group elements 
 

b

V group elements 
 

c

III group element 
 

d

VI group elements 
 

answer is C.

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Detailed Solution

  • An inherent semiconductor that has had phosphorus (P), arsenic (As), or antimony (Sb) added as an impurity is known as an n-type semiconductor. 
  • Group IV's silicon has four valence electrons, while Group V's phosphorus has five.

Hence the correct answer is V group elements.

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