LUMINESCENT AND ELECTROPHYSICAL PROPERTIES OF NANOSTRUCTURED SYNTHESIZED COMPOUNDS OF CADMIUM AND ZINC BY THE UNITHIOLATE COORDINATION COMPOUNDS

Abstract

This article presents the results of the “Development and Implementation of Technologies for Production of Semiconductor, Photosensitive and Luminescent Nanomaterials based on Directional Synthesis of Metal Sulfides from Unithiolate Coordination Compounds” research under the guidance of Professor Kh.K. Ospanov (Al-Farabi Kazakh National University) and active participation of head of Laboratory Klimenov V.V.(Institute of Physics and Technology LLP). This work was financed by the Ministry of Education and Science of the Republic of Kazakhstan under the budget program 055 “Fundamental and Applied Scientific Research”, specific 149 “Other Services and Works”. Under the program: “Nanoscience and Nanotechnology Development in the Republic of Kazakhstan for 2010-2012”. Annual reports “Study of the luminescent and electrophysical properties of nanostructured metal sulphides deposited by thermal decomposition of unitiolate coordination compounds” are presented. The work deals with the growth of microcrystals on a multicomponent silicate glass, in which the semiconductor phase, a concentration of approximately 1%, was dissolved during the synthesis. During the secondary heat treatment of glass samples, the nucleation and growth of semiconductor microcrystals occurs as a result of diffusion phase decomposition of the supersaturated solid solution. Employees of the opened-type national nanotechnology laboratory of the Al-Farabi Kazakh National University under the guidance of Professor M.T. Gabdullin repeatedly checked the materials during subsequent years.

Keywords: Unithiolate complex, sulfides, semiconductors, crystal lattice defects, bandgap, sodium 2,3-dimercaptopropanesulfonate, crystal lattice energy, thermolysis