Phase equilibrium and nucleation in VLS-grown nanowires

Edwin J. Schwalbach, Peter W Voorhees

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

Phase diagrams accounting for capillarity and surface stress in VLS-grown nanowires have been calculated, and linearized forms for the compositions of the solid and liquid are given. The solid-vapor interfacial energy causes a significant depression of the liquidus, and the impurity concentration in the wire decreases with decreasing wire diameter. Nucleation calculations give upper bounds on the nucleation temperature and liquid supersaturation during growth that are consistent with measurements in the Au-Ge system.

Original languageEnglish (US)
Pages (from-to)3739-3745
Number of pages7
JournalNano letters
Volume8
Issue number11
DOIs
StatePublished - Nov 1 2008

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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