STUDIES OF THE TRANSPORT PROPERTIES OF HIGH-CONCENTRATION CARBON NANOPARTICLES IN LOW-TEMPERATURE PLASMA

Abstract

This paper investigates the transport properties of carbon nanoparticles in low-temperature plasma, taking into account fluctuations in their electric charge. The charge of the nanoparticles is treated as a stochastic quantity resulting from random processes of electron and ion capture from the plasma. A truncated normal distribution is used to describe the statistical characteristics of the charge, with its parameters determined by the Monte Carlo method. The system dynamics are simulated using molecular dynamics for a two-dimensional strongly correlated plasma with a Yukaw interaction potential. The self-diffusion and viscosity coefficients are calculated using the Einstein and Green–Kubo relations based on the root-mean-square displacement and autocorrelation functions. It is shown that charge fluctuations significantly affect the transport properties of the system, leading to changes in the dependencies of the diffusion and viscosity coefficients on the coupling parameter. The results demonstrate the importance of accounting for charge fluctuations in the modeling of dense plasma systems and can be used to interpret experiments with complex plasma.