Information on the thesis

The thesis is devoted to the synthesis of zinc sulfide and zinc selenide semiconductor
thin films by chemical deposition method from aqueous solutions of zinc salt.
Structural,  optical,  morphological  properties  and  thickness  of  ZnS  and  ZnSe  films
were  investigated  by  the  X-ray  diffraction,  optical  spectroscopy,  scanning  electron  and
atomic-force  microscopy,  profilometry.  It  is  found  that  the  chemical  deposition  method
allows to obtain thin solid semiconductor films of zinc sulfide and zinc selenide on large
area substrates at low temperatures. These films have stoichiometric composition.
The  stripping  voltammetry  method  was  used  to  determine  the  zinc  mass  in  the
semiconductor ZnS and ZnSe thin films. The optimal conditions for their synthesis have
been found.
Kinetic  speed  of  ZnS  and  ZnSe  synthesis  reactions  was  studied  by  molecular
absorption analysis. The effective activation energies have been identified.
Solid solutions films and composite structures are created. They are based on zinc
sulfide and zinc selenide chemically deposited films. The phase composition, optical and
morphological properties of obtained solid solutions and structures were investigated. It is
shown that using of chemical deposition can significantly simplify and reduce the cost of
their  production  process,  and  could  become  the  basis  for  the  mass  production  of
photosensitive elements.
The  quantum-chemical  modeling  of  the  synthesis  process  of  zinc  sulfide  and  zinc
selenide  with  various  complexing  agents  was  done.  That  allowed  to  establish  the
mechanism of films deposition.
Key words: zinc sulfide, zinc selenide, thin films, chemical deposition, solid solution,
photosensitive structure.