Nanofluidics of Single-Crystal Diamond Nanomechanical Resonators
| Autor: | Haig A. Atikian, Marko Loncar, Kamil L. Ekinci, Victor Yakhot, Vural Kara, Young-Ik Sohn |
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| Rok vydání: | 2015 |
| Předmět: |
Nanoelectromechanical systems
Materials science Condensed Matter - Mesoscale and Nanoscale Physics business.industry Mechanical Engineering Fluid Dynamics (physics.flu-dyn) FOS: Physical sciences Thermal fluctuations Diamond Bioengineering Nanotechnology Nanofluidics Physics - Fluid Dynamics General Chemistry Dissipation engineering.material Condensed Matter Physics Resonator Mesoscale and Nanoscale Physics (cond-mat.mes-hall) engineering Optoelectronics General Materials Science Fluidics business Nanomechanics |
| Zdroj: | Nano Letters. 15:8070-8076 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/acs.nanolett.5b03503 |
| Popis: | Single-crystal diamond nanomechanical resonators are being developed for countless applications. A number of these applications require that the resonator be operated in a fluid, i.e., a gas or a liquid. Here, we investigate the fluid dynamics of single-crystal diamond nanomechanical resonators in the form of nanocantilevers. First, we measure the pressure-dependent dissipation of diamond nanocantilevers with different linear dimensions and frequencies in three gases, He, N$_2$, and Ar. We observe that a subtle interplay between the length scale and the frequency governs the scaling of the fluidic dissipation. Second, we obtain a comparison of the surface accommodation of different gases on the diamond surface by analyzing the dissipation in the molecular flow regime. Finally, we measure the thermal fluctuations of the nanocantilevers in water, and compare the observed dissipation and frequency shifts with theoretical predictions. These findings set the stage for developing diamond nanomechanical resonators operable in fluids. Nano Lett., Article ASAP (2015) |
| Databáze: | OpenAIRE |
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