Mohammad Khan

Major: Physics

Faculty Advisor: You Qiang

Project Title:

Radiation effect distribution observed on core-shell nanoparticles by molecular dynamics simulation

Abstract

Nanoparticles have been an area of active research in recent years due to their properties, which can be greatly different from the bulk. The core-shell nanomaterials and nanostructures have become an important research area since few decades due to their potential applications in various fields like catalysts, industrial and biomedical applications, and radiation detection application. In this work, the radiation effect on core-shell nanoparticles have been studied by using molecular dynamics simulations. A series of several cascades for each neutron recoil energy (50 keV, 100keV, 150keV, 200keV and 250 keV) have been simulated to assure statistical precision. From these simulations, defects distribution has been observed. Most of the defects accumulate near the interface of the nanoparticles. Core remain intact because shell prevent the irradiation effect.