COMPOSITE AND NANOCOMPOSITE THIN-FILM STRUCTURES BASED ON CHITOSAN SUCCINAMIDE

Currently, the development of composite and nanocomposite materials based on natural polymers attracts in creasing attention of scientists. This article discusses the studies of composite and nanocomposite thin-film structures based on chitosan succinamide obtained using various fillers, such as graphene oxide, single-walled carbon nano tubes and carbon adsorbents. Using atomic force microscopy, it was shown that composite sensors based on chitosan succinamide and various carbon-containing particles have a sufficient effective surface area and electron transfer rate, which allows them to be considered as highly promising materials for the creation of field-effect transistors in the future. The surface morphology of the films was also studied. Using a scanning electron microscope with soft ware, images of the surface of the polymers of interest were obtained. The results were used to create field-effect transistors based on the films under consideration as a transport layer. The mobility of charge carriers was assessed and the following values were obtained: μ(SCTS) = 0.173 cm2/V s; μ(SCTS-GO) = 0.509 cm2/V s; μ(SCTS-CP) = = 0.269 cm2/V s; μ(SCTS-CB) = 0.351 cm2/V s; μ(SCTS-SWCNT) = 0.713 cm2/V s.