The A-center, an acceptor with a binding energy of 0.12eV, was identified in this material by using photoluminescence and optically detected magnetic resonance techniques. It consisted of a Cd vacancy and a Cl donor on a Te site. The ligand interactions with the three Te neighbors were also resolved. From these data, and from a study of the A-center in the ternary CdZnTe system, it was concluded that the A-center could not be the main defect which was responsible for self-compensation in these materials.

B.K.Meyer, W.Stadler, D.M.Hofmann, P.Omling, D.Sinerius, K.W.Benz: Journal of Crystal Growth, 1992, 117, 656-9