Tsysar M. Determining the topographic characteristics of the surface of new carbon-contained nanostructured materials by tunneling microscopy

The thesis is devoted to solving actual scientific and technical problem of determining the topographical characteristics of new carbon-functional materials by tunnel microscopy. Modern carbon-contained materials used for the instrumental purpose are multicomponent systems whose properties are determined by the mosaic structure and the interaction between the phases in the areas of contact. In the production technology of these materials play a big role two basic allotropic forms of carbon, namely diamond and graphite. Using a diamond tip with a concentration of uncompensated boron (50...60)±1 ppm gives new opportunities for such materials research. Developed in this paper inductive method based on the principle of electrochemical potential allowed to define the transition between phases (sp2/sp3 hybridizetion) displayed on topograms fictitious height jump to 4 ?. Study of the graphene coating formed on a substrate of silicon oxide showed that it consists of a set of randomly located in space elliptical "petals", thickness of 3±0,5 nm, ellipse radiuses up to 250 nm and 600 nm, containing different carbon formation, such as fullerenes and nanotubes. According to developed method estimates the sizes of zones in a solid dielectric matrix of the composite conductor, determined conglomerates of the USD99, whose size varies within 30...50 nm. Experimental-industrial test showed advantages of the tunnelling microscope equipped with the single crystal boron doped diamond tip.