Marsagishvili T.
Dr.Sci., Ph.D., Head of Scientific Council, Head of Labor., R.Agladze Institute of Inorganic Chemistry and Electrochemistry, Tbilisi State University. Mindeli str. 11, 0186, Tbilisi, Georgia

Machavariani M.
Ph.D., Leader Sci. Work. R.Agladze Institute of Inorganic Chemistry and Electrochemistry, Tbilisi State University. Mindeli str. 11, 0186, Tbilisi, Georgia

Abstract
The study of charge transfer processes in complex condensed systems occurring under the external electromagnetic influence makes it possible to expand information regarding the properties of the system significantly. One of the most demanded properties of a system is its behavior under the influence of an electromagnetic field of various frequency ranges [1 – 15]. In this regard, the study of electrochemical charge transfer processes and corresponding photoprocesses is the most easily accessible and promising. Naturally, correlations between the parameters of the charge phototransfer process and the parameters of the corresponding thermal processes are necessary.
The work considers charge transfer processes and single-photon charge phototransfer processes in electrochemical systems. Analytical relationships between the characteristic parameters of the processes considered are obtained, in particular in the range of parameters in which direct measurements are not always possible. Theoretical calculations were carried out for the cathodic processes of charge transfer and phototransfer, but the results can easily be generalized for the corresponding anodic processes.

 Keywords: photoelectrochemical processes, electrochemical processes, condensed systems, solvation, spatial dispersion, Green functions.