Detection of mercury vapor using resonating microcantilevers
- Health Sciences Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6123 (United States)
Oscillating silicon nitride microcantilevers coated with a thin gold film have been used to detect mercury vapor in air. Cantilever resonance frequency changes due to surface mass loading as a result of adsorption of mercury vapor. Furthermore, cantilever bending is also altered due to changes in surface stress induced by mercury adsorption on the gold overlayer. Both of these phenomena can be used to quantitatively detect adsorbed vapors with picogram mass resolution.
- Research Organization:
- Oak Ridge National Laboratory
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 26027
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 13 Vol. 66; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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