Sosovska S. Phase equilibria in the CdSe-Ga2Se3-PbSe(Bi2Se3, Sb2Se3, As2Se3, PbTe, CdI2) systems and single crystal growth of CdGa2Se4.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0408U002841

Applicant for

Specialization

  • 02.00.01 - Неорганічна хімія

13-06-2008

Specialized Academic Board

К 61.051.03

State University "Uzhhorod National University"

Essay

The dissertation contains the results of phase equilibrium study in the СdSe–Ga2Se3–PbSe(Bi2Se3, Sb2Se3) and CdGa2Se4–As2Se3(PbTe, CdI2) systems. The coordinates of mono- and invariant points have been determined. The phase diagrams, projections of liquidus surfaces, isothermal sections and space phase diagrams have been constructed. The initial compositions have been selected to grow CdGa2Se4 single crystals by the solution-melt technique. CdGa2Se4 single crystals have been grown by the chemical transport reactions method. The composition of the crystals approximates the stoichiometry. Investigation of principal optical and electrical properties confirms the high structural quality of the grown crystals.

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