Polyethylene thin-film growth via clustre-surface collisions

摘要

Molecular dynamics simulations have been performed to investigate the growth of polyethylene thin films via cluster-surface collisions. The s ubstrate is hydrogen-terminated diamond (111) and a beam of four molecular clusters of ethylene impact the substrate at a velocity o f 18 km/s. The atoms are characterized by a realistic many-body empirical potential fory hydrocarbon systems. The goal of this study is to compare the simulation results to existing experimental data ob5tained under similar reaction conditions to better understand the process by which solid thin hydrocarbon films grow during molecular cluster-surface impacts.