EN
PbSnS thin films were prepared by hot-wall vacuum evaporation. The Rutherford backscattering technique was employed for the investigation of Pb_{x}Sn_{1 - x}S thin films composition. With a help of atomic force microscopy the main stages in the development of the thin films were characterized. Contact angle measurements of water drop on Pb_{x}Sn_{1 - x}S thin films have been conducted on our original setup.