Matrix-assisted pulsed laser evaporation of polymeric materials: A molecular dynamics study

Tatiana E. Itina, Leonid V. Zhigilei, Barbara Jane Garrison

Research output: Contribution to journalConference article

40 Scopus citations

Abstract

Matrix-assisted pulsed laser evaporation (MAPLE) has been recently developed to deposit high-quality thin films for a wide range of polymeric materials. To analyze the evaporation of polymer molecules in MAPLE, we present a molecular dynamics (MD) simulation of laser ablation where the target material is modeled as a solution of polymer molecules in a molecular matrix. The breathing sphere model is used for MD simulations of laser ablation of the molecular matrix. Polymer molecules are described using a bead-spring model, where each bead represents one or several polymer groups. The initial stage of polymer ejection is investigated at different laser fluences and pulse durations. The influence of polymer molecules on the stability of clusters formed in the plume and the processes that can lead to polymer decomposition are discussed.

Original languageEnglish (US)
Pages (from-to)238-244
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume180
Issue number1-4
DOIs
StatePublished - Jun 1 2001
EventComputer Simulation of Radiation Effects in Solids Section B: Beam Interactions with Materials and Atoms - State College, PA, United States
Duration: Jul 24 2000Jul 28 2000

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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