Spreading of liquid AuSi on vapor-liquid-solid-grown Si nanowires

Prashanth Madras, Eric Dailey, Jeffery Drucker

Research output: Contribution to journalArticlepeer-review

49 Scopus citations


Vapor-liquid-solid growth of high-quality Si nanowires relies on the stability of the liquid metal seed. In situ transmission electron microscopy shows that liquid AuSi seed spreads along the sidewalls of Si nanowires for some growth conditions. This liquid thin film phase separates to form solid Au clusters as the nanowire is quenched below the solidus temperature. The length that the liquid film spreads from the seed and its thickness can be explained by considering the spreading thermodynamics of droplets on cylinders.

Original languageEnglish (US)
Pages (from-to)1759-1763
Number of pages5
JournalNano Letters
Issue number5
StatePublished - May 12 2010


  • AuSi
  • In situ electron microscopy
  • Liquid spreading
  • Si nanowire

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering


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