Interfacial region between molecules assembled in a film and a solid surface influences the reactivity, recognition properties, structure and morphology of the entire film as well as the orientation of individual molecules in this film. Fabrication of various supramolecular functional assemblies connected with complementary in situ studies of their structure and reactivity are in the focus point of my research. Physical chemistry possesses advanced structure analyzing techniques which are suitable to solve, at a sub-molecular level, the structure a molecule. However, a large number of intermolecular interactions take place in the presence of an electrolyte solution, limiting significantly the number of applicable structure analyzing techniques. In addition, static electric fields acting at molecules adsorbed at interfaces may influence the structure, physical state, orientation, stability and reactivity of molecules present at a phase boundary. Application of electrochemical techniques to advanced experimental structure sensitive techniques opens a unique possibility to investigate simultaneously the impact of electric fields on the structure and reactivity of molecules in the adsorbed state. Therefore, in my research advanced experimental techniques are used to describe in situ structural aspects of intermolecular interactions. Methods of the surface modification are directly connected to electrochemistry, spectroscopic and microscopic analysis of interfaces.
Modification of surfaces:
-horizontal touch method,
-physical vapour deposition.
-electrochemical studies of redox reactions in solution phase,
-electrochemical studies of redox-active and redox-inactive films adsorbed on the electrode surface,
-studies of the corrosion process of light metals
-preparation and electrochemical characterization of metallic microelectrodes,
-most often used electrochemical methods: cyclic voltammetry, alternative current voltammetry, chronoculometry, chronoamperometry, differential pulse methods,
-scanning electrochemical microscopy (SECM).
-Polarization modulation infrared reflection-absorption spectroscopy at the solid|air, solid(electrode)|electrolyte and air|water interfaces (PM IRRAS),
-X-ray photoelectron spectroscopy (XPS)