Creation of ZnO-based nanomaterials with use synergies of the thermal action and laser-induced vibrations

Synthesis of metallic-semiconductor nanocomposite based on ZnO nanowires under pulse-periodic laser action with a pulse frequency of 3 Hz was performed. By analyzing the results of the samples' responses to the laser-induced vibroexcitation, it was found that the vibration rate increases in the case of frequencies that are divisible by the frequency of initial oscillation, during the amplitude decrease with the frequency increase. The determination of sample heating features by laser action was performed. Analysis of the X-ray diffraction image showed that thermal oxidation by the pulse-periodic laser treatment leads to the ZnO oxide formation on the substrate of porous Cu–Zn alloy. It is shown that a non-stationary local deformation, caused by a highly-powered external action, is a condition for the intensification of mass transfer in the solid phase of a metallic material. Thus, for the first time it is shown that the use of synergies of thermal effects and laser-induced vibrations in the sound frequency range of pulse-periodic laser beam allow the implementation of a new approach for the creation of structures of composite nanomaterials based on zinc oxide. Results of study are the basis for creating software to controlling laser systems. (paper)