Question

Why are the elemental dopants mainly taken from 13th and 15th group, for doping Silicon or Germanium?

Answer 1

Answer:

This is because of the followinf reasons :

• The size of the dopant atoms should be such that their presence in the pure semiconductor does not distort the semiconductor but easily contribute the charge carriers on forming covalent bonds with Si or Ge atoms.

Answer 2

Answer:

The size of the dopant atoms should be such that their presence in the pure semiconductor does not distort the semiconductor but easily contribute the charge carriers on forming covalent bonds with Si or Ge atoms

hope this helps