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Information × Registration Number 0221U104741, 0119U100303 , R & D reports Title Development of a physical framework for functionalized nanostructured materials based on carbon, semiconductor heterostructures and porous silicon. popup.stage_title Head Korotchenkov Oleg O., Доктор фізико-математичних наук Registration Date 07-04-2021 Organization Taras Shevchenko National University of Kyiv popup.description2 Object of research: thermal and mechanical stability of nanocomposites based on epoxy resin, photo-e.r.s. in silicon-germanium heterostructures, sonochemical treatment of nanostructures, thermal conductivity processes of composite systems "porous Si – liquid". Subject of research: processes of controlled change of mechanical, electro- and thermo-physical properties of nanostructured materials with polymeric and semiconductor matrices and nanofillers based on carbon, silicon and germanium. Purpose: development of physical principles for improving thermal and mechanical stability of functional nanomaterials based on nanocarbon structures, photoelectric and thermophysical properties of Si / Ge and porous Si heterostructures by modifying their structural-morphological, mechanical, magnetic properties of different forms of carbon particles by carbonic nanomaterials on their surface. Research methods: electro- and magnetic transport characteristics, X-ray diffraction analysis, photo-emf, photothermoacoustic and optical spectroscopy, study of dynamic elastic modules, chemical stability of graphene-containing epoxy nanocomposites. The regularities of propagation of ultrasonic waves of different types in polymer composites with graphene inclusions depending on the size of the interfacial layers around the nanoparticles have been elucidated. The possibility of using acoustic and thermoacoustic techniques to study the interface regions of such nanocomposites is shown. It is shown that the photo-e.r.s. in Si and SiGe can be significantly increased (up to 100%) by sonochemical treatment in dichloromethane and chloroform, due to the passivation of broken bonds on the surface by carbon atoms released in the sonochemical reaction.  Product Description popup.authors Borovy Nikolay A. Burbelo Roman M. Gorb Alla M. Kuzmich Andrey G. Mayko Oleksandr M. Nadtochij Andrij B. Ovsienko Iryna V. Olikh Oleg Ya. Podolian Artem O. Polovyna Oleksiy I. Saenko Galina V. Tsarehradsʹka Tetyana L. Chupryna Roman G. Shmid Volodymyr I. popup.nrat_date 2021-04-07 Close