The electrochem. cell for in-situ photothermal spectroscopy measurement was designed for the first time independently. A polyvinylidene difluoride (PVDF) pyroelec. film was used as a thermosensor. The photothermal signal in the cell was analyzed theor. The properties of oxide layers formed on Ag surface in alkaline solution have been investigated by using such in-situ spectroelectrochem. method. From the change of spectra it was proved, that the Ag2O layer was formed on Ag surface simultaneously while the anodic current increases on voltammetry curve, as well as in the case for the formation of AgO layer.

Key words: SURFACES, SILVER OXIDE, LAYER OXIDE, ELECTROLYZER, ALKALINE SOLUTION