Abstract:
The results of synthesis of aluminum nanoparticles (NPs) by laser ablation are presented. Water, ethanol,
chlorobenzene were used for the synthesis of NPs as solvents. Measurements of sizes and shapes of NPs are
carried out. Particle’s sizes was determined using the dynamic light scattering method. Sizes of nanoparticles
depends on the boiling point of solvents. Electron microscopic images show that the formation of spherical
nanoparticles. Absorption spectra of solutions of aluminum NPs and aluminum oxide (Al2O3) NPs are measured.
A computer simulation of extinction spectra of aluminum NPs and Al2O3 NPs in an aqueous solution
was also carried out. Extinction spectra of Al and Al2O3 nanoparticles of different sizes in the water were calculated
by using Mie theory. The comparison of results of measurements and the simulation showed a significant
difference. Luminescence spectra of aqueous solutions of aluminum NPs and aluminum oxide NPs were
measured with the ultraviolet excitation. Results of measuring of the luminescence spectrum of the water of
aluminum NPs indicate the presence of Al2O3.
