Laser forming of nanostructures in aqueous suspensions with particular optical and photoelectrical properties

Abstract

Abstract The self-organizing forming of ordered nanostructures in the aqueous suspensions with inorganic nanoparticles of nickel, copper, silica and bio-organic particles of grinded green leaves were studied by means of the irradiation with red, green and blue lasers. Various forms of self-consistent non-homogeneous distributions of the nanocomponents and the optical flows were found. The suspensions with high density of the nickel nanoparticles demonstrated abrupt changes of their transparency and periodicity. These abrupt changes were transformed to more slow oscillations of the particles and light distributions when the nickel particles were mixed with the nanoparticles of copper. The suspensions with the nanoparticles of copper created arc-like agglomerations explained by generation of vortexes. The vortex-like distributions were found in the suspensions with silica as well. The anisotropic agglomerations were observed during the irradiations of the suspensions with the grinded green leaves. These results are promising for the developments of new kinds of optical modulators and switchers, optical memory and green solar batteries.