Ivanova, G.N.Nedeoglo, DmitriiNedeoglo, NataliaSirkeli, Vadim2021-11-122021-11-122007IVANOVA, G.N., NEDEOGLO, Dmitrii, NEDEOGLO, Natalia et al. Interaction of intrinsic defects with impurities in Al doped ZnSe single crystals. In: Journal of Applied Physics. 2007, Vol. 101, Issue 6. ISSN 0021-8979.0021-8979https://aip.scitation.org/doi/full/10.1063/1.2712147https://msuir.usm.md/handle/123456789/4982We report on the results of a complex study of electrical (77−300 K) and luminescence (10−300 K) properties of 𝑛-ZnSe single crystals annealed in a Zn melt containing Al impurity at concentrations ranging from 0.1 to 80 at. %. It was established that Al atoms form donor centers only at a low impurity concentration (≤0.5 at. %). The increase of the amount of Al atoms in the crystal results in the formation of (VZnAlZn) associative acceptor centers leading to the self-compensation of the shallow Al donor impurity. This process is accompanied by the emergence and development of a self-activated luminescence band associated with the (VZnAlZn) acceptor centers. We show that further increase of the Al content in the melt (≥10 at. %) leads to the dissociation of the acceptor complexes and to a recurrent donor doping effect. The photoluminescence spectra of such crystals are dominated by activated luminescence via the (CuZnVSeCu𝑖) and (CuZnAlZn) associative centers.enArticle