Formation of metal/semiconductor Cu–Si composite nanostructures

Abstract

Molecular dynamics modelling of the formation of copper and silicon composite nanostructures was carried out by using the many-particle potential method. The dependences of the internal structure on the cooling rate and the ratio of elements were investigated. The possibility of the formation of the Cu–Si nanoparticles from both a homogeneous alloy and two initial drops at short distance were shown. A comparative analysis showed that the diameter distribution of copper and silicon atoms in experimental particles coincides with the simulation results with silicon content of 50 atom %. Additionally, an estimation of the effective experimental cooling rate was made.

Nanopowders Created by Irradiating Brass with Relativistic Electrons

“…As a material heating source to obtaining composite nanoparticles, an open-type electron-beam evaporation installation (Fig. 1) based on a relativistic electron accelerator of the ELV-6 type with an energy of 1.4 MeV and a current in the range of 5-25 mA was used [4,5,8].…”

“…The most promising methods combine environmental safety and a high yield of a product with nanosized particles. Such a method is a gas-phase synthesis with a powerful source of electron radiation [4,5]. For more than 20 years, the research team behind this paper has been working on obtaining nanosized powders of various substances by evaporating them with an electron beam.…”