Question

The n-type semiconductor is obtained by doping with
(i) trivalent impurity
(ii) pentavalent impurity
(iii) tetravalent impurity
(iv) trivalent as well as tetravalent

Answer 1

Answer:

Doping is the process of adding impurities to intrinsic semiconductors to alter their properties. Normally Trivalent and Pentavalent elements are used to dope Silicon and Germanium. When an intrinsic semiconductor is doped with Trivalent impurity it becomes a P-Type semiconductor. The P stands for Positive, which means the semiconductor is rich in holes or Positive charged ions. When we dope intrinsic material with Pentavalent impurities we get N-Type semiconductor, where N stands for Negative. N-type semiconductors have Negative charged ions or in other words have excess electrons in it.

Answer 2

Explanation:

the answer is pentavalent impurity