Mykhailova H. Electronic properties of multiwalled carbon nanotubes array containing defects

The new effects revealed in the thesis. That occur in the formation of bulk materials from multiwalled carbon nanotubes (MCNT) in the proces of load-unload and found the stage passed an array of advantages isolated carbon nanotubes and metal particles. The features of the electronic structure of carbon nanotubes, the effect of significant elastic deformation, defects of different genesis, metal particles (LaNi5, AlLi, Cu) processes of ordering and orientation of CNT conductivity, thermopower, and magnetic properties were established. Defects of MCNTs of different genesis (growth and radiation) have different effects on the electronic structure and properties. It was determined that edge dislocations in the CNT cut path carrier transport inside CNT lead to an increase in the order of the radial conductivity and lower coefficient of thermoelectric power to 2 times and radiation defects formed during gamma (1.2 MeV) and beta (2 and 21 MeV)- irradiation, "capture" of the pi-electrons, changes the electrical conductivity, and always increases thermoelectric power. Radial conductivity increases to 20 times when CNT added to the metal particles with smaller work function than the work function of the nanotubes. This is due to the transition of electrons from the metal in the CNT, whose mobility is three orders of magnitude greater than in metals.