“The conductivity of these intrinsic semiconductors is increased by adding an appropriate amount of suitable impurity. This process is called doping.”
Doping of with :
When is doped with , a cationic vacancies are created which means silver ion displaces from its position in the lattice due to the presence of neighboring cadmium ions.
When is doped with , silver ions are displaced by cadmium ion . Thus, one cadmium ion occupies the position of one silver ion which makes up for the charge of two silver ions . This type of vacancy is known as cationic vacancy.