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 language | English (US) |
|---|---|
| Pages (from-to) | 238-244 |
| Number of pages | 7 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
| Volume | 180 |
| Issue number | 1-4 |
| DOIs | |
| State | Published - Jun 2001 |
| Event | Computer Simulation of Radiation Effects in Solids Section B: Beam Interactions with Materials and Atoms - State College, PA, United States Duration: Jul 24 2000 → Jul 28 2000 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Instrumentation