Effect of surface reactivity on the nucleation of hydrocarbon thin films through molecular-cluster beam deposition

Lifeng Qi, W. Leigh Young, Susan B. Sinnott

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The effect of surface reactivity on thin film nucleation through cluster-surface collisions is examined using molecular dynamics simulations with a well-known reactive empirical-bond order potential for hydrocarbons. It has previously been shown through experiments that strongly adhering polymer thin films can be generated through the impact of organic clusters with mica, diamond, or glass surfaces. In this study, molecular clusters of ethylene and acetylene are impacted at hyperthermal velocities of about 1.3 keV per cluster against activated bare 1×1 diamond (111), reconstructed 2×1 diamond (111), and hydrogen-terminated diamond (111) surfaces. As a result of the collisions, the cluster molecules react with each other and the surface nucleating thin hydrocarbon films. The effect of surface and molecular reactivity on thin film nucleation and structure is discussed.

Original languageEnglish (US)
Pages (from-to)83-91
Number of pages9
JournalSurface Science
Volume426
Issue number1
DOIs
StatePublished - May 1999

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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