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Mercury vapor detection with a self-sensing, resonating piezoelectric cantilever

  • B. Rogers
  • , L. Manning
  • , M. Jones
  • , T. Sulchek
  • , K. Murray
  • , B. Beneschott
  • , J. D. Adams
  • , Z. Hu
  • , T. Thundat
  • , H. Cavazos
  • , S. C. Minne
  • University of Nevada, Reno
  • Oak Ridge National Laboratory
  • Nanodevices Incorporated

Research output: Contribution to journalArticlepeer-review

94 Scopus citations

Abstract

A method to detect mercury vapor by using self-sensing, resonating piezoelectric cantilever was described. The mercury vapor when adsorbed onto gold on the cantilever causes stiffness which increases the natural frequency of the cantilever. This shift in the natural frequency is detected by using piezoelectric portion of the cantilever in conjunction with a bridge circuit and amplifier. It was shown that by altering the geometry and physical characteristics of this cantilever could improve its chemical detection performance.

Original languageEnglish
Pages (from-to)4899-4901
Number of pages3
JournalReview of Scientific Instruments
Volume74
Issue number11
DOIs
StatePublished - Nov 2003

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