Kopach O. Structural changes in the vicinity of the melting point on synthesis of undoped and doped cadmium telluride

An object is the processes of melting and crystallization at the synthesis from melts of pure and doped CdTe; purpose - establishment of transformations' rules of the spatial chemical bonds system at heating and cooling of the CdTe in the vicinity of melting temperature and influence on these processes of alloying elements (In, Ge, Sn and Sb) for development of scientific bases of pure and alloyed CdTe synthesis with the forecast properties; research methods are the precision differential thermal analysis, method of measuring of dynamic viscosity of melt; results - firstly microheterogeneity and metastability regions in the CdTe - In (Ge, Sn, Sb) systems near CdTe side where established; kinetic regularities of clusters' formation and possible composition of clusters in the CdTe melts and melts of the CdTe-In(Ge, Sn, Sb) systems with amount of component to 10 mol.% were investigated, the phenomenon of postmelting effect in the CdTe, CdTe - In (Ge) melts were detailed and firstly investigated it in theCdTe - Sn(Sb) systems; the influence of intermediate isothermal holding (thermal history) on nucleation process on cooling superheated CdTe and CdTe + 2 mol.% In (Ge) melts were established; using - the improvement of structural perfection of CdTe monocrystals, growth of CdTe polycrystals.