Q14 / 200 · Manipal (MET) 2010 · Chemistry

If we mix a pentavalent impurity in a crystal lattice of germanium, what type of semiconductor formation will occur?

  • A
    p-type
  • Correct answer
    B
    n-type
  • C
    Both (a) and (b)
  • D
    None of the two

Solution

On adding a pentavalent impurity with germanium, we get $n$-type of semiconductors because excess of electrons is responsible for conduction.

Hence, the correct answer is option: 'B'.

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