Q53 / 200 · NEET 2008 (Screening) · Chemistry

With which one of the following elements silicon should be doped so as to give p-type of semiconductor?

  • A
    Germanium
  • B
    Arsenic
  • C
    Selenium
  • Correct answer
    D
    Boron

Solution

The n-type semiconductors are obtained when Si or Ge are doped with elements of group 15 , eg, arsenic (As), while p-type semiconductors are obtained when Si or Ge are doped with traces of elements of group 13 , ie, indium (In), boron (B) . Note : The conductivity of semiconductors increases with rise in temperature.

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

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