Nanomechanical gas sensing with nonlinear resonant cantilevers.
| Title: | Nanomechanical gas sensing with nonlinear resonant cantilevers. |
|---|---|
| Authors: | Venstra WJ; Kavli Institute of Nanoscience Delft, Delft University of Technology, Lorentzweg 1, 2628CJ Delft, The Netherlands.; Capener MJ; Elliott SR |
| Source: | Nanotechnology [Nanotechnology] 2014 Oct 24; Vol. 25 (42), pp. 425501. Date of Electronic Publication: 2014 Sep 30. |
| Publication Type: | Journal Article; Research Support, Non-U.S. Gov't |
| Language: | English |
| Journal Info: | Publisher: IOP Pub Country of Publication: England NLM ID: 101241272 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1361-6528 (Electronic) Linking ISSN: 09574484 NLM ISO Abbreviation: Nanotechnology Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Bristol, UK : IOP Pub., c1990- |
| Abstract: | Cantilevers play an important role as linear transducers in nanoscience, with nanomechanical detection of mass and stress as a clear example. We performed gas sensing experiments with a standard functionalized cantilever driven strongly into the regime of nonlinear oscillations. We compared the cantilever response to the selective adsorption of ethanol vapour in the nonlinear regime, to the ones obtained in the conventional linear static and dynamic sensing modes. In the nonlinearly driven cantilever, the adsorption and desorption-induced frequency shifts were enhanced by over a factor of three compared to resonant sensing with the same mode in the linear regime. This demonstrates a route towards gas detectors that exploit nonlinearity to enhance the responsivity, which can be implemented with standard cantilever devices. |
| Entry Date(s): | Date Created: 20141001 Date Completed: 20150330 Latest Revision: 20141004 |
| Update Code: | 20260130 |
| DOI: | 10.1088/0957-4484/25/42/425501 |
| PMID: | 25267180 |
| Database: | MEDLINE |
Journal Article; Research Support, Non-U.S. Gov't