Self-Oscillations in Field Emission Nanowire Mechanical Resonators:  A Nanometric dc−ac Conversion

Abstract

RECEIVED DATE (to be automatically inserted after your manuscript is accepted if required according to the journal that you are submitting your paper to)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 ~50% DC/AC (direct to alternative current) conversion. Electrical selfoscillations 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 nano-components.Within the nanodevice world, nanoelectromechanical systems (NEMS) based on resonant components are having a revolutionary impact on basic research in nanomechanics 1,2 and in technological

In-plane nanoelectromechanical resonators based on silicon nanowire piezoresistive detection

“…A lot of effort has been devoted to developing new transduction and background reduction [6]. A variety of NEMS detection techniques, such as capacitive [3,7,8], magnetomotive [9], piezoresistive [10,11] and field-emission [4,12] transduction, have been proposed. The magnetomotive approach typically requires large magnetic fields (2-8 T) and is thus not suitable for integrated applications.…”

Non-linear and Non-planar Free Thermal Vibration of SWNT in Molecular Dynamic Simulation

“…A few experiments are reported about free thermal vibration of the nanoscale cantilevered and suspended structure. Non planar motion of free vibration [7] and forced vibration [8] is measured using the field emission method (FEM) in silicon nanowire. We show that poincare distribution and frequency response in fine resolution shows this doffing (nonplanar) motion satisfies the solution of continuum non-linear equation which is derived by Hamilton's extended principle [9].…”

The mechanical resonances of electrostatically coupled nanocantilevers

“…The strong electrostatic influence on the mechanics opens the perspective for coupled self oscillations in this configuration, as previously observed on individual NNs under Field Emission. [15][16][17] This work is supported by the French National Research Agency ͑ANR͒ through the Nanoscience and Nanotechnology Program ͑Project NEXTNEMS No. ANR-07-NANO-008-01 and Project NEMSPiezo No.…”