Growing epitaxial Cdsub(x)Hgsub(1-x)Te layers from mercury solutions of Cd and Te

Conditions of initiation of concentrational supercooling during epitaxy from supercooled mercury solutions of Te and Cd have been studied. Effect of the phenomenon on the structure and morphology of grown layers Cdsub(x)Hgsub(1-x)Te and ways of its liquidation are considered. It is shown that epitaxial layers Cdsub(x)Hgsub(1-x)Te on CdTe sublayers can be obtained using the method of liquid epitaxy from mercury solutions. When there is a high oversaturation of solution (δt > 3 deg C), concentrational supercooling on crystallization front can be presented by means of temperature gradient introduction Gsub(l) > 8 deg/cm. Gradient of composition over the layer thickness increases with the increase of supercooling. The change of composition over the layer thickness is mainly conditioned by diffusion process