Three-center Auger-type nonradiative recombination mechanism in the ZnS lattice

Abstract
The occurrence of an Auger-type energy-transfer process from a recombining donor-acceptor pair to a third center (donor or acceptor) is proved directly using the electron-spin-resonance technique. The efficiency of this process is estimated by analyzing the kinetics of the donor ESR signal. The conditions under which the three-center Auger-type energy transfer processes would efficiently quench photoluminescence intensity are discussed.