Progress in ZnO Acceptor Doping: What Is the Best Strategy?
Figure 2
Calculated defect formation energy for selected defects as a function of the Fermi level and for (low zinc partial pressure). Only the lowest formation energy values are shown. The zero of the Fermi level is set to the top of the valence band. Reprinted with permission from [13]. Copyright 2000 by the American Physical Society.
