Before revision: A dashed line depicts the occupancy situation: below this Fermi level the states are more likely to be occupied, the Fermi level moves closer to the conduction band , indicating more electrons are in the conducting band near the insulator.
After revision: A dashed line depicts the occupancy situation: below this conduction band the states are more likely to be occupied, the Fermi level moves closer to the Fermi level , indicating more electrons are in the conducting band near the insulator.