The project is orientated on the support of cooperation between Slovak and French partners in the field of study of structure and physical properties of a new special glasses systems based on chalcogenides and heavy metals oxides with a higher content of ionic bonds. From the professional point of view it is the study of changes in the glass structure generated by the change of chemical composition, investigation of the preparation technology and effect of increased temperature and humidity. Changes in structure usually affect formation of a new phases, which can be monitored using electrical and optical methods. The project will provide extension of the cooperation at preparation of common outputs and publications oriented on diagnosing of special glasses designed for optoelectronic applications, possibly for solid electrolytes. The aim of the project is a detailed description of the structure and properties of glasses enhanced by the results of the analysis of electrical and dielectric parameters.