A broad set of plausible charge states are calculated for each defect type, but conventionally only the most favorable charge states are shown. The vertical dashed lines denote the equilibrium Fermi energy (E Fermi,eq ), which is obtained through a self-consistent search to fulfill charge neutrality of charged defects and electronic charge carriers in the material. The blue shaded region is where the defect formation energies are negative i.e., defects form spontaneously. As shown in the following results, E Fermi,eq is always located where all defects have positive formation energies.