Electron paramagnetic resonance, photo-EPR, and optical detection of magnetic resonance (ODMR) investigations of paramagnetic centers related to the oxygen vacancy in ZnO were reviewed. Most attention was paid to the problems in the identification of different EPR spectra related to the oxygen vacancy. The experimental photo-EPR and ODMR results, concerning the energy levels formed by the oxygen vacancy in the ZnO gap, were summarized and analyzed.

Magnetic Resonance Studies of Intrinsic Defects in ZnO: Oxygen Vacancy. Vlasenko, L.S.: Applied Magnetic Resonance, 2010, 39[1], 103-11