Kinetics Modeling of Nanoparticle Growth on and Evaporation off Nanotubes

TL;DR

This paper introduces a kinetic Monte Carlo model to simulate nanoparticle growth and evaporation on nanotubes, providing detailed insights into the process beyond traditional thermodynamic models.

Contribution

The study presents a novel kinetic Monte Carlo approach that captures morphological details of nanoparticle dynamics on nanotubes, advancing nanoscale thermometry techniques.

Findings

Model reproduces key features of nanoparticle growth and evaporation.

Provides detailed morphological snapshots of the processes.

Demonstrates advantages over phenomenological thermodynamic models.

Abstract

A kinetic Monte Carlo approach is developed for studying growth and evaporation of nanoparticles on/off nanotubes. This study has been motivated by recent experimental advances in using nanoparticle evaporation (sublimation) off nanoparticle-decorated nanotubes for nanoscale "thermometry." We demonstrate that the considered kinetic Monte Carlo approach can reproduce features of the process that are not included in phenomenological thermodynamic modeling, as well as provide snapshots of the growth and evaporation process morphology.