Gorichok I. Thermodynamics and crystal-chemystry of points defects in unalloyed and halogens doped (Cl, Br, I) crystals of Cadmium Telluride

In the work it is explored defect structure of unalloyed and halogens doped (Cl, Br, I) cadmium telluride crystals and its influence on the creation of physical and chemical properties of material, depending on the technological factors of post-growth two-temperature annealing in the vapor of cadmium and tellurium. The mod-els of defects structure are developed and the method of thermodynamics potentials is modified for determination of concentrations of points defects and free transmitters of charge in crystals. The energy parameters of own and dopant points defects and their complexes are determined. The influence of halogens impurity on physical and chemical proper-ties of CdTe is determined. The maximal solubility of halogens in the matrix of CdTe and thermodynamics parameters of their introduction in a grate is determined. Types and concentrations of dominant points defects are set that determine electric proper-ties of unalloyed and halogens doped (Cl, Br, I) crystals.