SURFACE-MORPHOLOGY OF VAPOR-PHASE GROWN CDTE

Surfaces of large single crystals of CdTe grown from the vapour having no contact with the ampoule wall have been investigated by scanning e lectron microscopy. The morphology of the growth interface has been st udied as a function of several growth parameters, such as temperature field, supersaturation and crystal orientation. The formation of flat facets, depressions and pipes parallel to the growth direction is disc ussed in relation to the growth conditions.