Abstract
In the present paper we consider carbon films obtained by the method of sequential deposition from fullerene solutions in various types of solvents. Micrographs are presented to estimate the surface geometry of thin-film structures. So, using various solvents, it is possible to form various geometrical objects depending on the functional purpose of the films. At the same time, nanostructured objects can have the form of both bulk polygons (in our case, hexagons) and star-shaped branching structures. The IR spectra of the obtained samples were analyzed and their comparative characteristics were given for a volume of a precipitated solution of 0.15 ml and 1 ml. Depending on the type of initial solvent, both solvent peaks, fullerene, and complex organic impurities can be present in the fabricated samples. From the presence of solvent peaks, it is possible to make an assumption about the crystallization of solvates and their preservation in the film after drying. The conductive properties of thin-film structures are investigated. The use of five types of solvents made it possible to change linear resistances from hundreds to thousands of GOhms with a volume of 0.15 ml applied. An increase in the volume of the nanocrystalline fraction (1 ml of solution) made it possible to reduce the resistance to tens of GOhms It is worth noting that the mechanisms of the action of the active solvent environment on the morphology of the synthesized objects are not entirely clear, however, studies conducted to obtain nanostructures from fullerene solutions will be effective and, in our opinion, for controlled self-assembly of other functional organic systems.
Published Version
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