Principles in Multi-scale Design of Low-Energy-Electron-Induce Nanosurface

Aims

Investigating the principles in the design of the nanosurface induced by the low-energy-electron which is contained in the ECR（Electron Cyclotron Resonance）plasma during the electron/ion etching or chemical reaction gas etching process. Clarifying the growth mechanism of the low-energy-electron-induce carbon-based nanosurface. Providing new ideas and methods for the design of carbon-based nanosurface. 

Contents

1. Investigating the dependence between phonon energy and temperature using atomic vibration thermodynamics; Studying the principle of the phonon-electron correlation; Clarifying the mechanism of the transformation between amorphous and nano-crystal structures under small amount of electron-beam, and further clarifying the dominant reason for the nano-structure growth under different temperature and electron-irradiation conditions. 

2. Building up the theoretical model of ion and electron irradiation at the atomic level. Studying the behavior and properties of carbon-based nano-structure under  ion and electron irradiation, by combining classical molecular dynamics calculations based on Newton mechanics and density functional theory or tight-binding calculations based on quantum mechanics.

3. Investigating the effects of low-energy-electron irradiation on graphene based on density functional theory. Predicting the creation and annihilation of the covalent bonds, the formation of defects and new structrue, and the mechanical and electrical behavior of the carbon-based nano structure during the irradiation, by calculating the change of the electron densities based on quantum mechanics. 

Results

Publications in top international journals（Phy. Rev. Lett., Nano Lett. etc）; Building up a leading research team (3-5 researchers) in China, famous in the world.