In a pure semiconductor crystal of Si, if antimony is added then what type of extrinsic semiconductor
is obtained. Draw the energy band diagram of this extrinsic semiconductor so formed.
ANS 1
As given in the statement antimony is added to pure Si crystal,
then a n -type extrinsic semiconductor would be so obtained,
Since antimony(Sb) is a pentavalent impurity. Energy level diagram of n-type semiconductor




