Thermally induced breakup of metallic nanowires: Experiment and theory

Martin Schnedlitz, Maximilian Lasserus, Daniel Knez, Andreas W. Hauser*, Ferdinand Hofer, Wolfgang E. Ernst

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

We present time-resolved transmission electron microscopy studies of the degradation of Au, Ag, Cu and Ni nanowires deposited on a heated support. The wires are grown under fully inert conditions in superfluid helium droplets and deposited onto amorphous carbon. The inherent stability of these pristine metal nanowires with diameters below 10 nm is investigated in the absence of any stabilizers, templates or solvents. The phenomenon of Rayleigh-breakup, a consequence of diffusion processes along the wire surfaces, is analysed in situ via scans over time and support temperature. Our experimental efforts are combined with simulations based on a novel model featuring a cellular automaton to emulate surface diffusion. Based on this model, correlations between the material parameters and actual breakup behaviour are studied.

Original languageEnglish
Pages (from-to)9402-9408
Number of pages7
JournalPhysical chemistry, chemical physics
Volume19
Issue number14
DOIs
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fields of Expertise

  • Advanced Materials Science

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