The formation of super-long nano-chains during evaporation of metals with a help of intensive impacts

Abstract

Abstract Extended nanostructures, in particular, chains of nanoparticles, are of great interest for microelectronics, biomedicine, and energy. But until now, it was possible to obtain such structures with the lengths not more than a few millimeters. We have developed several techniques based on laser and electric evaporation of metals, which provide the formation of nanochains with the lengths up to 60 cm. A significant factor in the formation of such structures is the constructive participation of turbulent vortices, which create the necessary compression and subsequent agglomeration of the vapors of metals and oxides subjected to the intensive electrical or laser impacts. Research and production of the nano-structures with large surfaces and lengths provide promising opportunities for the direct converters of solar energy and ionizing radiation to electricity, development of new optoelectronic and microelectronic devices as well as highly sensitive biosensors.