Mechanical Properties of Silicon Nanowires

Young Soo Sohn, Jinsung Park, Gwonchan Yoon, Jiseok Song, Sang Won Jee, Jung Ho Lee, Sung Soo Na, Taeyun Kwon, Kilho Eom

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

Nanowires have been taken much attention as a nanoscale building block, which can perform the excellent mechanical function as an electromechanical device. Here, we have performed atomic force microscope (AFM)-based nanoindentation experiments of silicon nanowires in order to investigate the mechanical properties of silicon nanowires. It is shown that stiffness of nanowires is well described by Hertz theory and that elastic modulus of silicon nanowires with various diameters from ~100 to ~600 nm is close to that of bulk silicon. This implies that the elastic modulus of silicon nanowires is independent of their diameters if the diameter is larger than 100 nm. This supports that finite size effect (due to surface effect) does not play a role on elastic behavior of silicon nanowires with diameter of >100 nm.

Original languageEnglish
Pages (from-to)211-216
Number of pages6
JournalNanoscale Research Letters
Volume5
Issue number1
DOIs
Publication statusPublished - 2010 Jan 1

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Keywords

  • Atomic force microscope
  • Elastic modulus
  • Nanoindentation
  • Silicon nanowire

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Sohn, Y. S., Park, J., Yoon, G., Song, J., Jee, S. W., Lee, J. H., ... Eom, K. (2010). Mechanical Properties of Silicon Nanowires. Nanoscale Research Letters, 5(1), 211-216. https://doi.org/10.1007/s11671-009-9467-7