Template-grown metal nanowires as resonators: Performance and characterization of dissipative and elastic properties

Mingwei Li, Theresa S. Mayer, James A. Sioss, Christine D. Keating, Rustom B. Bhiladvala

Research output: Contribution to journalArticle

60 Scopus citations

Abstract

Metal resonators can significantly extend the scope of nanoelectromechanical systems (NEMS) through access to a broader range of electrical, thermal, and surface properties. The material behavior of template-electrodeposited gold (Au) and rhodium (Rh) nanowires (NWs) and their performance as resonators was investigated. Nanowire integration by a bottom-up assembly scheme enabled creation of fixed-free metal beams without distortion or tension. Surprisingly, even a soft metal such as Au yielded viable nanocantilever resonators, with Q-factors of 600-950 in high vacuum, while stiffer RhNW had Q-factors of 1100-1300. NWs with diameter ∼300 nm yield Young's modulus values of 44 ± 12 GPa for Au and 222 ±70 GPa for Rh, both lower than bulk values. This observation is in agreement with two other measurement techniques.

Original languageEnglish (US)
Pages (from-to)3281-3284
Number of pages4
JournalNano letters
Volume7
Issue number11
DOIs
StatePublished - Nov 1 2007

All Science Journal Classification (ASJC) codes

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

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