Growth of cadmium telluride by solvent evaporation

Cadmium telluride can be grown from cadmium or tellurium rich solutions of the two elements by gradually adjusting the composition of the solution until the three phase surface is intersected. This is achieved, in the technique described, by removing excess cadmium from a cadmium rich solution by evaporation. The temperature of a reservoir of cadmium is slowly reduced, whilst maintaining a constant thermal environment in the growth region, thus reducing the activity of cadmium in the solution