Figure 42. The Band Model for Semiconductors.

Ec - the conduction band edge
Ep - the valence band edge
Eg - the band gap
Ef,int - Fermi energy level
Ed - electron donor in the n-type semiconductors
Ea - electron acceptor in the p-type semiconductors

Figure 42 - The Band Model for Semiconductors. The following energy levels are shown: Ec - the conduction band edge Ep - the valence band edge Eg - the band gap Ef,int - Fermi energy level Ed - electron donor in the n-type semiconductors Ea - electron acceptor in the p-type semiconductors