Self-Oscillations in Field Emission Nanowire Mechanical Resonators: A Nanometric dc−ac Conversion
- 4 July 2007
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 7 (8), 2252-2257
- https://doi.org/10.1021/nl070742r
Abstract
We report the observation of self-oscillations in a bottom-up nanoelectromechanical system (NEMS) during field emission driven by a constant applied voltage. An electromechanical model is explored that explains the phenomenon and that can be directly used to develop integrated devices. In this first study, we have already achieved approximately 50% dc/ac (direct to alternating current) conversion. Electrical self-oscillations in NEMS open up a new path for the development of high-speed, autonomous nanoresonators and signal generators and show that field emission (FE) is a powerful tool for building new nanocomponents.Keywords
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